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US20190054182A1 - Trispecific and/or trivalent binding proteins for prevention or treatment of hiv infection - Google Patents

Trispecific and/or trivalent binding proteins for prevention or treatment of hiv infection Download PDF

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Publication number
US20190054182A1
US20190054182A1 US15/770,471 US201615770471A US2019054182A1 US 20190054182 A1 US20190054182 A1 US 20190054182A1 US 201615770471 A US201615770471 A US 201615770471A US 2019054182 A1 US2019054182 A1 US 2019054182A1
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amino acid
seq
acid sequence
sequence
cdr
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US15/770,471
Inventor
Zhi-Yong Yang
Gary J. Nabel
Ling Xu
Ronnie Wei
Huawei Qiu
Jochen Beninga
Jochen Kruip
Ercole Rao
Wulf Dirk LEUSCHNER
Christian Beil
Christian Lange
Mark Connors
John R. Mascola
Richard A. Koup
Jinghe Huang
Nicole A. DORIA-ROSE
Tongqing Zhou
Peter D. Kwong
Young Do Kwon
Amarendra PEGU
Mangaiarkarasi ASOKAN
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Sanofi SA
US Department of Health and Human Services
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Sanofi SA
US Department of Health and Human Services
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Priority to US15/770,471 priority Critical patent/US20190054182A1/en
Assigned to SANOFI reassignment SANOFI ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: YANG, ZHI-YONG, NABEL, GARY J.
Assigned to THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES reassignment THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CONNORS, MARK, KWONG, PETER D., ZHOU, TONGQING, MASCOLA, JOHN R., KOUP, RICHARD A., HUANG, Jinghe, KWON, YOUNG DO, DORIA-ROSE, NICOLE A., PEGU, Amarendra
Assigned to THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES reassignment THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ASOKAN, Mangaiarkarasi
Assigned to SANOFI reassignment SANOFI ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KRUIP, JOCHEN, XU, LING, QIU, HUAWEI, BEIL, CHRISTIAN, BENINGA, JOCHEN, LANGE, CHRISTIAN, LEUSCHNER, Wulf Dirk, RAO, ERCOLE, WEI, Ronnie
Publication of US20190054182A1 publication Critical patent/US20190054182A1/en
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/46Hybrid immunoglobulins
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/50Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
    • A61K47/51Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
    • A61K47/68Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
    • A61K47/6835Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment the modifying agent being an antibody or an immunoglobulin bearing at least one antigen-binding site
    • A61K47/6881Cluster-antibody conjugates, i.e. the modifying agent consists of a plurality of antibodies covalently linked to each other or of different antigen-binding fragments covalently linked to each other
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12Antivirals
    • A61P31/14Antivirals for RNA viruses
    • A61P31/18Antivirals for RNA viruses for HIV
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/08Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from viruses
    • C07K16/10Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from viruses from RNA viruses
    • C07K16/1036Retroviridae, e.g. leukemia viruses
    • C07K16/1045Lentiviridae, e.g. HIV, FIV, SIV
    • C07K16/1063Lentiviridae, e.g. HIV, FIV, SIV env, e.g. gp41, gp110/120, gp160, V3, PND, CD4 binding site
    • C07K16/1145
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/46Hybrid immunoglobulins
    • C07K16/468Immunoglobulins having two or more different antigen binding sites, e.g. multifunctional antibodies
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00Medicinal preparations containing antigens or antibodies
    • A61K39/395Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum
    • A61K39/42Antibodies; Immunoglobulins; Immune serum, e.g. antilymphocytic serum viral
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/30Immunoglobulins specific features characterized by aspects of specificity or valency
    • C07K2317/31Immunoglobulins specific features characterized by aspects of specificity or valency multispecific
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/50Immunoglobulins specific features characterized by immunoglobulin fragments
    • C07K2317/56Immunoglobulins specific features characterized by immunoglobulin fragments variable (Fv) region, i.e. VH and/or VL
    • C07K2317/565Complementarity determining region [CDR]
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/70Immunoglobulins specific features characterized by effect upon binding to a cell or to an antigen
    • C07K2317/76Antagonist effect on antigen, e.g. neutralization or inhibition of binding
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/90Immunoglobulins specific features characterized by (pharmaco)kinetic aspects or by stability of the immunoglobulin
    • C07K2317/92Affinity (KD), association rate (Ka), dissociation rate (Kd) or EC50 value
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/90Immunoglobulins specific features characterized by (pharmaco)kinetic aspects or by stability of the immunoglobulin
    • C07K2317/94Stability, e.g. half-life, pH, temperature or enzyme-resistance

Definitions

  • the disclosure relates to trispecific and/or trivalent binding proteins comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first pair of polypeptides forming the binding protein possess dual variable domains having a cross-over orientation and wherein a second pair of polypeptides forming the binding protein possess a single variable domain.
  • the disclosure also relates to methods for making trispecific and/or trivalent binding proteins and uses of such binding proteins for treating and/or preventing HIV/AIDS.
  • HIV/AIDS neutralizing antibodies
  • virological events in the early weeks following HIV-1 transmission set the stage for lifelong chronic infection that remains incurable with currently available combination antiretroviral therapy (cART). This is due, at least in part, to the early establishment of viral reservoirs, including latently infected cells, which persist despite cART, leading to recrudescent infection when treatment is interrupted.
  • cART combination antiretroviral therapy
  • Newly discovered anti-HIV-1 neutralizing antibodies with improved breadth and potency may provide more options for HIV/AIDS treatment and prevention; however, breakthrough infection remains a major issue in the field.
  • the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is an immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • the second polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • the third polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains
  • the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains
  • the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is an immunoglobulin C H1 heavy chain constant domain
  • C H2 is an immunoglobulin C H2 heavy chain constant domain
  • C H3 is an immunoglobulin C H3 heavy chain constant domain
  • hinge is an immunoglobulin hinge region connecting the C H1 and C H2 domains
  • L 1 , L 2 , L 3 and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • the C H3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • the one or more HIV target protein is selected from the group consisting of glycoprotein 120, glycoprotein 41 and glycoprotein 160.
  • the binding protein is trispecific and capable of specifically binding three different epitopes on a single HIV target protein.
  • the binding protein is trispecific and capable of specifically binding two different epitopes on a first HIV target protein, and one epitope on a second HIV target protein, wherein the first and second HIV target proteins are different.
  • the binding protein is trispecific and capable of specifically binding three different antigen targets.
  • the binding protein is capable of inhibiting the function of one or more HIV target proteins.
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • V L1 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively, a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively, or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • V L2 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521. In some embodiments, V L3 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • V H1 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • V H2 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
  • V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • V H3 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • V L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274;
  • V L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277;
  • V L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 266, a CDR-L2 comprising the sequence of SEQ ID NO: 267, and a CDR-L3 comprising the sequence of SEQ ID NO: 268;
  • V H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a CDR-H3 comprising the sequence of
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 512;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506; and
  • V H 3 comprises a CDR-H1, CDR
  • V L1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518;
  • V L2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519;
  • V L3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 512;
  • V H1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504;
  • V H2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506;
  • V H 3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 502.
  • V L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274;
  • V L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277;
  • V L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271;
  • V H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a CDR-H3 comprising the sequence
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506; and
  • V H3 comprises a CDR-H1, CDR
  • V L J comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518;
  • V L2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519;
  • V L3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513,
  • V H1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504;
  • V H2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506; and
  • V H3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
  • V L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277;
  • V L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274;
  • V L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271;
  • V H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 257, a CDR-H2 comprising the sequence of SEQ ID NO: 258, and a CDR-H3 comprising the sequence
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504; and
  • V H3 comprises a CDR-H1, CDR
  • at least one of L 1 , L 2 , L 3 , or L 4 is independently 0 amino acids in length.
  • L 1 , L 2 , L 3 , or L 4 are each independently at least one amino acid in length.
  • L 1 comprises Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair; wherein:
  • V L1 , V L2 and V L3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283;
  • V H1 , V H2 , and V H3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or
  • V H1 , V H2 , and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
  • the second polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • the third polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains
  • the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • C H2 is an immunoglobulin C H2 heavy chain constant domain
  • C H3 is an immunoglobulin C H3 heavy chain constant domain
  • hinge is an immunoglobulin hinge region connecting the C H1 and C H2 domains
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair; wherein:
  • V L1 , V L2 and V L3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283;
  • V H1 , V H2 , and V H3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or
  • V H1 , V H2 , and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
  • the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • the C H3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • L 1 , L 2 , L 3 , or L 4 is independently 0 amino acids in length. In some embodiments, L 1 , L 2 , L 3 , or L 4 are each independently at least one amino acid in length. In some embodiments, L 1 comprises Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • the disclosure provides a trispecific and/or trivalent binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind three different HIV target proteins, wherein a first polypeptide chain has a structure represented by the formula:
  • a third polypeptide chain has a structure represented by the formula:
  • polypeptide chain has a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 and L 4 are amino acid linkers
  • polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain has a structure represented by the formula:
  • a third polypeptide chain has a structure represented by the formula:
  • polypeptide chain has a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers
  • polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair
  • V L1 , V L2 and V L3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283;
  • V H1 , V H2 , and V H3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or (b) V H1 , V H2 , and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248
  • the disclosure provides a binding protein comprising a first polypeptide chain, a second polypeptide chain, a third polypeptide chain and a fourth polypeptide chain wherein:
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 4 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 4;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 3 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 3;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 1 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 1;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 2 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 2;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 12 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 12;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 11 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 11;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 9 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 9;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 10 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 10;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 20 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 20;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 19 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 19;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 17 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 17;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 18 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 18;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 28 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 28;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 27 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 27;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 25 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 25;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 26 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 26;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 36 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 36;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 35 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 35;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 33 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 33;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 34 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 34;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 44 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 44;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 43 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 43;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 41 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 41;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 42 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 42;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 52 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 52;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 51 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 51;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 49 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 49;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 50 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 50;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 60 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 60;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 59 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 59;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 57 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 57;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 58 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 58;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 68 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 68;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 67 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 67;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 65 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 65;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 66 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 66;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 76 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 76;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 75 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 75;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 73 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 73;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 74 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 74;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 84 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 84;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 83 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 83;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 81 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 81;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 82 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 82;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 92 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:92;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 91 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 91;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 89 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 89;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 90 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 90;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 100 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 100;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 99 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 99;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 97 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 97;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 98 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 98;
  • the first polypeptide comprises the amino acid sequence of SEQ ID NO: 108 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 108;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 107 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 107;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 105 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 105;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 106 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 106;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 116 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 116;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 115 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 115;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 113 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 113;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 114 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 114;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 124 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 124;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 123 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 123;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 121 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 121;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 122 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 122;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 132 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 132;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 131 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 131;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 129 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 129;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 130 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 130;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 140 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 140;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 139 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 139;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 137 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 137;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 138 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 138;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 148 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 148;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 147 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 147;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 145 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 145;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 146 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 146;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 156 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 156;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 155 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 155;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 153 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 153;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 154 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 154;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 164 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 164;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 163 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 163;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 161 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 161;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 162 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 162;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 172 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 172;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 171 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 171;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 169 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 169;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 170 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 170;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 180 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 180;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 179 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 179;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 177 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 177;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 178 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 178;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 188 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 188;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 187 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 187;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 185 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 185;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 186 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 186;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 196 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 196;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 195 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 195;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 193 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 193;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 194 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 194;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 204 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 204;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 203 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 203;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 201 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 201;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 202 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 202;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 212 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 212;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 211 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 211;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 209 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 209, and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 210 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 210;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 220 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 220;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 219 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 219;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 217 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 217;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 218 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 218;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 228 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 228;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 227 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 227;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 225 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 225;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 226 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 226;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 235 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 235;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 234 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 234;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 232 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 232;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 233 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 233; or
  • first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 243 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 243;
  • second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 242 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 242;
  • third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 240 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 240;
  • fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 241 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 241.
  • the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins and one or more T cell target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • the second polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • the third polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains
  • the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins and one or more T cell target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • C H2 is an immunoglobulin C H2 heavy chain constant domain
  • C H3 is an immunoglobulin C H3 heavy chain constant domain
  • hinge is an immunoglobulin hinge region connecting the C H1 and C H2 domains
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • the C H3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • the one or more HIV target proteins are selected from the group consisting of glycoprotein 120, glycoprotein 41 and glycoprotein 160.
  • the one or more T cell target proteins are CD3 or CD28.
  • the binding protein is trispecific and capable of specifically binding an HIV target protein and two different epitopes on a single T cell target protein.
  • the binding protein is trispecific and capable of specifically binding an HIV target protein and two different T cell target proteins.
  • the binding protein is trispecific and capable of specifically binding a T cell target protein and two different epitopes on a single HIV target protein.
  • the binding protein is trispecific and capable of specifically binding a T cell target protein and two different HIV target proteins.
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 488
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • V L1 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively.
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • V L2 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively.
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • V L3 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively, a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 48
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • V H1 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 48
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511. In some embodiments. V H2 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 48
  • V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • V H3 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • V L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 488, a CDR-L2 comprising the sequence of SEQ ID NO: 489, and a CDR-L3 comprising the sequence of SEQ ID NO: 490;
  • V L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 494, a CDR-L2 comprising the sequence of SEQ ID NO: 495, and a CDR-L3 comprising the sequence of SEQ ID NO: 496;
  • V L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271;
  • V H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 479, a CDR-H2 comprising the sequence of SEQ ID NO: 480, and a CDR-H3 compris
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 522;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 524;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 509;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 511; and
  • V H3 comprises a CDR-H1, CDR
  • V L1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 522;
  • V L2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 524;
  • V L3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513;
  • V H1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 509;
  • V H2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 511;
  • V H3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
  • V L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 494, a CDR-L2 comprising the sequence of SEQ ID NO: 495, and a CDR-L3 comprising the sequence of SEQ ID NO: 496;
  • V L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 488, a CDR-L2 comprising the sequence of SEQ ID NO: 489, and a CDR-L3 comprising the sequence of SEQ ID NO: 490;
  • V L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271;
  • V H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 485, a CDR-H2 comprising the sequence of SEQ ID NO: 486, and a CDR-H3 comprising the
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 524;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 522;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 511;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 509; and
  • V H3 comprises a CDR-H1, CDR
  • V L1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 524;
  • V L2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 522;
  • V L3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513,
  • V H1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 511;
  • V H2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 509;
  • V H3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
  • at least one of L 1 , L 2 , L 3 , or L 4 is independently 0 amino acids in length.
  • L 1 , L 2 , L 3 , or L 4 are each independently at least one amino acid in length.
  • L 1 is Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
  • the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair; wherein:
  • V L1 , V L2 and V L3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
  • V H1 , V H2 , and V H3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
  • V H1 , V H2 , and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • the second polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • the third polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • the second polypeptide chain further comprises a first Fc region linked to CHI, the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains
  • the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • C H2 is an immunoglobulin C H2 heavy chain constant domain
  • C H3 is an immunoglobulin C H3 heavy chain constant domain
  • hinge is an immunoglobulin hinge region connecting the C H1 and C H2 domains
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair; wherein:
  • V L1 , V L2 and V L3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
  • V H1 , V H2 , and V H3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
  • V H1 , V H 2, and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • the C H3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • L 1 , L 2 , L 3 , or L 4 is independently 0 amino acids in length. In some embodiments, L 1 , L 2 , L 3 , or L 4 are each independently at least one amino acid in length. In some embodiments, L 1 is Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
  • the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain has a structure represented by the formula:
  • a third polypeptide chain has a structure represented by the formula:
  • polypeptide chain has a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers
  • polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair
  • V L1 , V L2 and V L3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
  • V H1 , V H2 , and V H3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
  • V H1 , V H2 , and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • the disclosure provides a binding protein comprising a first polypeptide chain, a second polypeptide chain, a third polypeptide chain and a fourth polypeptide chain wherein:
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 305 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 305;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 304 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 304;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 302 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 302;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 303 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 303;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 313 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 313;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 312 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 312;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 310 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 310;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 311 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 311;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 321 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 321;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 320 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 320;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 318 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 318;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 319 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 319;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 329 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 329;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 328 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 328;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 326 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 326;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 327 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 327;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 337 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 337;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 336 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 336;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 334 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 334;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 335 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 335;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 345 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 345;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 344 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 344;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 342 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 342;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 343 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 343;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 353 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 353;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 352 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:352;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 350 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 350;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 351 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 351;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 361 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 361;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 360 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 360;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 358 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 358;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 359 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 359;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 369 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 369;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 368 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 368;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 366 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 366;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 367 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 367;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 377 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 377;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 376 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 376;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 374 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 374;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 375 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 375;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 385 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 385;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 384 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 384;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 382 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 382;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 383 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 383;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 393 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 393;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 392 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 392;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 390 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 390;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 391 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 391;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 401 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 401;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 400 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 400;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 398 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 398;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 399 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 399;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 409 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 409;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 408 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 408;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 406 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 406;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 407 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 407;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 417 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 417;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 416 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 416;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 414 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 414;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 415 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 415;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 425 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 425;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 424 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 424;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 422 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 422;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 423 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 423;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 433 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:433;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 432 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 432;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 430 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 430;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 431 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 431;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 441 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 441;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 440 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 440;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 438 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 438;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 439 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 439;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 449 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 449;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 448 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 448;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 446 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 446;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 447 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 447;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 457 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 457;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 456 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 456;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 454 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 454;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 455 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 455;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 465 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 465;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 464 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 464;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 462 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 462;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 463 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 463;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 473 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 473;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 472 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 472;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 470 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 470;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 471 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 471.
  • the disclosure provides an isolated nucleic acid molecule comprising a nucleotide sequence encoding the binding protein according to any of the above embodiments. In one embodiment, the disclosure provides an expression vector comprising the nucleic acid molecule according to any of the above embodiments. In one embodiment, the disclosure provides an isolated host cell comprising the nucleic acid molecule according to any of the above embodiments. In one embodiment, the disclosure provides an isolated host cell comprising the expression vector according to any of the above embodiments. In some embodiments, the isolated host cell is a mammalian cell or an insect cell.
  • the disclosure provides a vector system comprising one or more vectors encoding a first, second, third, and fourth polypeptide chain of a binding protein according to any of the above embodiments.
  • the vector system comprises a first vector encoding the first polypeptide chain of the binding protein, a second vector encoding the second polypeptide chain of the binding protein, a third vector encoding the third polypeptide chain of the binding protein, and a fourth vector encoding the fourth polypeptide chain of the binding protein.
  • the vector system comprises a first vector encoding the first and second polypeptide chains of the binding protein, and a second vector encoding the third and fourth polypeptide chains of the binding protein.
  • the one or more vectors are expression vectors.
  • the disclosure provides an isolated host cell comprising the vector system according to any of the above embodiments.
  • the isolated host cell is a mammalian cell or an insect cell.
  • the disclosure provides a method of producing a binding protein, the method comprising: a) culturing a host cell according to any of the above embodiments under conditions such that the host cell expresses the binding protein; and b) isolating the binding protein from the host cell.
  • the disclosure provides a method of preventing and/or treating HIV infection in a patient comprising administering to the patient a therapeutically effective amount of at least one binding protein according to any of the above embodiments.
  • the binding protein is co-administered with standard anti-retroviral therapy.
  • administration of the at least one binding protein results in the neutralization of one or more HIV virions.
  • administration of the at least one binding protein results in the elimination of one or more latently and/or chronically HIV-infected cells in the patient.
  • the patient is a human.
  • the disclosure provides a binding protein according to any of the above embodiments for the prevention or treatment of an HIV infection in a patient.
  • the binding protein is co-administered with standard anti-retroviral therapy.
  • the binding protein causes the neutralization of one or more HIV virions in the patient.
  • the binding protein causes the elimination of one or more latently and/or chronically HIV-infected cells in the patient.
  • the patient is a human.
  • FIGS. 1A-D show schematic representations of trispecific binding proteins comprising four polypeptide chains that form three antigen binding sites that specifically bind three different epitopes on one or more antigens, wherein a first pair of polypeptides possess dual variable domains having a cross-over orientation forming two antigen binding sites (comprising V H1 -V L1 and V H2 -V L2 ) and wherein a second pair of polypeptides possess a single antigen binding site (comprising V H3 -V L3 ), in accordance with some embodiments.
  • FIG. 1A shows a trispecific binding protein comprising a “knobs-into-holes” modification, wherein the knob is on the first pair of polypeptides.
  • FIG. 1A shows a trispecific binding protein comprising a “knobs-into-holes” modification, wherein the knob is on the first pair of polypeptides.
  • FIG. 1B shows a trispecific binding protein comprising a “knobs-into-holes” modification, wherein the knob is on the second pair of polypeptides.
  • FIG. 1C shows the orientation of variable domains on the polypeptide chains, and the knob/hole orientation for binding proteins 1-31 shown in Tables 1 and 2.
  • “Heavy chain A” e.g., a third polypeptide chain of the present disclosure indicates the variable domain of heavy chain A.
  • Light chain A e.g., a fourth polypeptide chain of the present disclosure indicates the variable domain of light chain A.
  • “Heavy chain B” (e.g., a second polypeptide chain of the present disclosure) indicates variable domain 1 and variable domain 2 of heavy chain B.
  • Light chain B (e.g., a first polypeptide chain of the present disclosure) indicates variable domain 1 and variable domain 2 of light chain B.
  • FIG. 1D shows the orientation of variable domains on the polypeptide chains, and the knob/hole orientation for binding proteins 32-53 shown in Tables 1 and 2.
  • “Heavy chain A” (e.g., a third polypeptide chain of the present disclosure) indicates the variable domain of heavy chain A.
  • “Light chain A” (e.g., a fourth polypeptide chain of the present disclosure) indicates the variable domain of light chain A.
  • Light chain B (e.g., a second polypeptide chain of the present disclosure) indicates variable domain 1 and variable domain 2 of heavy chain B.
  • Light chain B (e.g., a first polypeptide chain of the present disclosure) indicates variable domain 1 and variable domain 2 of light chain B.
  • FIGS. 2A-B show purification of three trispecific binding proteins first using affinity chromatography, and then using preparative size exclusion chromatography.
  • FIG. 2A shows the elution profile of the trispecific binding proteins during purification using protein A affinity chromatography.
  • FIG. 2B shows purification of monomeric proteins by Superdex200 size exclusion chromatography.
  • FIGS. 3A-B show purification of the MPER Ab, CD4BS Ab “b”, and V1/V2 directed Ab “a” parental antibodies first using affinity chromatography, and then using preparative size exclusion chromatography.
  • FIG. 3A shows the elution profile of the parental antibodies during purification using protein A affinity chromatography.
  • FIG. 3B shows purification of monomeric proteins by Superdex200 size exclusion chromatography.
  • FIGS. 4A-B show the size exclusion chromatography profiles of bispecific and trispecific binding proteins.
  • FIG. 4A shows the size exclusion chromatography profiles of the bispecific binding proteins.
  • FIG. 4B shows the size exclusion chromatography profiles of the trispecific binding proteins.
  • FIG. 5 shows the Biacore sensograms of the binding kinetics of three trispecific binding proteins and the parental MPER Ab antibody for an HIV gp41-derived peptide (the MPER binding site), as assessed by the standard Biacore-based kinetic assay.
  • FIG. 6 shows the Biacore sensograms of the binding kinetics of three trispecific binding proteins and the parental CD4BS Ab “b” antibody for recombinant HIV gp120, as assessed by the standard Biacore-based kinetic assay.
  • FIG. 7 shows the results of a pharmacokinetic (PK) study of the indicated proteins after intravenous (IV) injection in rhesus macaques.
  • FIGS. 8A-8B show schematic representations of trispecific T-cell engagers, in accordance with some embodiments. The binding sites are indicated by the dotted circles.
  • FIG. 9 shows binding properties of the trispecific binding proteins “Binding Protein 32” and “CD3 ⁇ CD28/CD4BS Ab ‘b’” to CD3 (CD3E represents CD3epsilon protein; CD3D represents CD3delta protein), CD28, and Resurfaced Stabilized Core 3 (RSC3) protein of gp120, as well as a negative control (human IgG).
  • CD3E represents CD3epsilon protein
  • CD3D represents CD3delta protein
  • CD28 CD3delta protein
  • RSC3 Resurfaced Stabilized Core 3
  • FIG. 10 shows CD8 T-cell activation using the trispecific proteins “Binding Protein 32” and “CD3 ⁇ CD28/CD4BS Ab ‘b’” compared to the parental CD4BS IgG4 antibody, as well as a negative control (No mAb).
  • FIG. 11 shows CD4 T-cell activation using the trispecific proteins “Binding Protein 32” and “CD3 ⁇ CD28/CD4BS Ab ‘b’” compared to the parental CD4BS IgG4 antibody, as well as a negative control (No mAb).
  • FIG. 12 shows CD3 downregulation after T cell activation by the trispecific proteins “Binding Protein 32” and “CD3 ⁇ CD28/CD4BS Ab ‘b’” compared to the parental CD4BS IgG4 antibody, as well as a negative control (No mAb).
  • FIGS. 13A-C show fluorescence-activated cell sorting (FACS)-based cytotoxicity assay results for trispecific binding proteins against latently infected HIV-1 + T cells.
  • FIG. 13A shows the results for trispecific binding proteins incubated with CEM-BaL cells.
  • FIG. 13B shows the results for trispecific binding proteins incubated with ACH2 cells.
  • FIG. 13C shows the results for trispecific binding proteins incubated with J1.1 cells.
  • the present disclosure provides trispecific and/or trivalent binding proteins comprising four polypeptide chains that form three antigen binding sites that specifically bind to one or more human immunodeficiency virus (HIV) target proteins and/or one or more T-cell receptor target proteins, wherein a first pair of polypeptides forming the binding protein possess dual variable domains having a cross-over orientation and wherein a second pair of polypeptides forming the binding protein possess a single variable domain.
  • HIV human immunodeficiency virus
  • polynucleotide refers to single-stranded or double-stranded nucleic acid polymers of at least 10 nucleotides in length.
  • the nucleotides comprising the polynucleotide can be ribonucleotides or deoxyribonucleotides or a modified form of either type of nucleotide.
  • Such modifications include base modifications such as bromuridine, ribose modifications such as arabinoside and 2′,3′-dideoxyribose, and internucleotide linkage modifications such as phosphorothioate, phosphorodithioate, phosphoroselenoate, phosphorodiselenoate, phosphoroanilothioate, phoshoraniladate and phosphoroamidate.
  • base modifications such as bromuridine, ribose modifications such as arabinoside and 2′,3′-dideoxyribose, and internucleotide linkage modifications such as phosphorothioate, phosphorodithioate, phosphoroselenoate, phosphorodiselenoate, phosphoroanilothioate, phoshoraniladate and phosphoroamidate.
  • polynucleotide specifically includes single-stranded and double-stranded forms of DNA.
  • isolated polynucleotide is a polynucleotide of genomic, cDNA, or synthetic origin or some combination thereof, which: (1) is not associated with all or a portion of a polynucleotide in which the isolated polynucleotide is found in nature, (2) is linked to a polynucleotide to which it is not linked in nature, or (3) does not occur in nature as part of a larger sequence.
  • isolated polypeptide is one that: (1) is free of at least some other polypeptides with which it would normally be found, (2) is essentially free of other polypeptides from the same source, e.g., from the same species, (3) is expressed by a cell from a different species, (4) has been separated from at least about 50 percent of polynucleotides, lipids, carbohydrates, or other materials with which it is associated in nature, (5) is not associated (by covalent or noncovalent interaction) with portions of a polypeptide with which the “isolated polypeptide” is associated in nature, (6) is operably associated (by covalent or noncovalent interaction) with a polypeptide with which it is not associated in nature, or (7) does not occur in nature.
  • Such an isolated polypeptide can be encoded by genomic DNA, cDNA, mRNA or other RNA, of synthetic origin, or any combination thereof.
  • the isolated polypeptide is substantially free from polypeptides or other contaminants that are found in its natural environment that would interfere with its use (therapeutic, diagnostic, prophylactic, research or otherwise).
  • Naturally occurring antibodies typically comprise a tetramer.
  • Each such tetramer is typically composed of two identical pairs of polypeptide chains, each pair having one full-length “light” chain (typically having a molecular weight of about 25 kDa) and one full-length “heavy” chain (typically having a molecular weight of about 50-70 kDa).
  • the terms “heavy chain” and “light chain” as used herein refer to any immunoglobulin polypeptide having sufficient variable domain sequence to confer specificity for a target antigen.
  • the amino-terminal portion of each light and heavy chain typically includes a variable domain of about 100 to 110 or more amino acids that typically is responsible for antigen recognition.
  • the carboxy-terminal portion of each chain typically defines a constant domain responsible for effector function.
  • a full-length heavy chain immunoglobulin polypeptide includes a variable domain (V H ) and three constant domains (C H1 , C H2 , and C H3 ), wherein the V H domain is at the amino-terminus of the polypeptide and the C H3 domain is at the carboxyl-terminus, and a full-length light chain immunoglobulin polypeptide includes a variable domain (V L ) and a constant domain (C L ), wherein the V L domain is at the amino-terminus of the polypeptide and the C L domain is at the carboxyl-terminus.
  • Human light chains are typically classified as kappa and lambda light chains, and human heavy chains are typically classified as mu, delta, gamma, alpha, or epsilon, and define the antibody's isotype as IgM, IgD, IgG, IgA, and IgE, respectively.
  • IgG has several subclasses, including, but not limited to, IgG1, IgG2, IgG3, and IgG4, IgM has subclasses including, but not limited to, IgM1 and IgM2.
  • IgA is similarly subdivided into subclasses including, but not limited to, IgA1 and IgA2.
  • variable and constant domains typically are joined by a “J” region of about 12 or more amino acids, with the heavy chain also including a “D” region of about 10 more amino acids.
  • the variable regions of each light/heavy chain pair typically form an antigen binding site.
  • the variable domains of naturally occurring antibodies typically exhibit the same general structure of relatively conserved framework regions (FR) joined by three hypervariable regions, also called complementarity determining regions or CDRs.
  • both light and heavy chain variable domains typically comprise the domains FR1, CDR1, FR2, CDR2, FR3, CDR3, and FR4.
  • CDR set refers to a group of three CDRs that occur in a single variable region capable of binding the antigen.
  • the exact boundaries of these CDRs have been defined differently according to different systems.
  • the system described by Kabat Kabat (Kabat et al., S EQUENCES OF P ROTEINS OF I MMUNOLOGICAL I NTEREST (National Institutes of Health, Bethesda, Md. (1987) and (1991)) not only provides an unambiguous residue numbering system applicable to any variable region of an antibody, but also provides precise residue boundaries defining the three CDRs.
  • These CDRs may be referred to as Kabat CDRs. Chothia and coworkers (Chothia and Lesk, 1987 , J. Mol. Biol.
  • CDR boundary definitions may not strictly follow one of the herein systems, but will nonetheless overlap with the Kabat CDRs, although they may be shortened or lengthened in light of prediction or experimental findings that particular residues or groups of residues or even entire CDRs do not significantly impact antigen binding.
  • the methods used herein may utilize CDRs defined according to any of these systems, although certain embodiments use Kabat or Chothia defined CDRs. Identification of predicted CDRs using the amino acid sequence is well known in the field, such as in Martin, A. C. “Protein sequence and structure analysis of antibody variable domains,” In Antibody Engineering , Vol. 2.
  • the amino acid sequence of the heavy and/or light chain variable domain may be also inspected to identify the sequences of the CDRs by other conventional methods, e.g., by comparison to known amino acid sequences of other heavy and light chain variable regions to determine the regions of sequence hypervariability.
  • the numbered sequences may be aligned by eye, or by employing an alignment program such as one of the CLUSTAL suite of programs, as described in Thompson, 1994 , Nucleic Acids Res. 22: 4673-80.
  • Molecular models are conventionally used to correctly delineate framework and CDR regions and thus correct the sequence-based assignments.
  • Fc refers to a molecule comprising the sequence of a non-antigen-binding fragment resulting from digestion of an antibody or produced by other means, whether in monomeric or multimeric form, and can contain the hinge region.
  • the original immunoglobulin source of the native Fc is preferably of human origin and can be any of the immunoglobulins, although IgG1 and IgG2 are preferred.
  • Fc molecules are made up of monomeric polypeptides that can be linked into dimeric or multimeric forms by covalent (i.e., disulfide bonds) and non-covalent association.
  • the number of intermolecular disulfide bonds between monomeric subunits of native Fc molecules ranges from 1 to 4 depending on class (e.g., IgG, IgA, and IgE) or subclass (e.g., IgG1, IgG2, IgG3, IgA1, and IgGA2).
  • class e.g., IgG, IgA, and IgE
  • subclass e.g., IgG1, IgG2, IgG3, IgA1, and IgGA2
  • Fc is a disulfide-bonded dimer resulting from papain digestion of an IgG.
  • the term “Fc” as used herein is generic to the monomeric, dimeric, and multimeric forms.
  • a F(ab) fragment typically includes one light chain and the V H and C H1 domains of one heavy chain, wherein the V H -C H1 heavy chain portion of the F(ab) fragment cannot form a disulfide bond with another heavy chain polypeptide.
  • a F(ab) fragment can also include one light chain containing two variable domains separated by an amino acid linker and one heavy chain containing two variable domains separated by an amino acid linker and a C H1 domain.
  • a F(ab′) fragment typically includes one light chain and a portion of one heavy chain that contains more of the constant region (between the C H1 and C H2 domains), such that an interchain disulfide bond can be formed between two heavy chains to form a F(ab′) 2 molecule.
  • binding protein refers to a non-naturally occurring (or recombinant or engineered) molecule that specifically binds to at least one target antigen, and which comprises four polypeptide chains that form at least three antigen binding sites, wherein a first polypeptide chain has a structure represented by the formula:
  • a third polypeptide chain has a structure represented by the formula:
  • polypeptide chain has a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • a “recombinant” molecule is one that has been prepared, expressed, created, or isolated by recombinant means.
  • binding proteins having biological and immunological specificity to between one and three target antigens.
  • nucleic acid molecules comprising nucleotide sequences encoding polypeptide chains that form such binding proteins.
  • Another embodiment of the disclosure provides expression vectors comprising nucleic acid molecules comprising nucleotide sequences encoding polypeptide chains that form such binding proteins.
  • host cells that express such binding proteins (i.e., comprising nucleic acid molecules or vectors encoding polypeptide chains that form such binding proteins).
  • variable domains refers to the interchangeability of variable domains within the binding protein format and with retention of folding and ultimate binding affinity.
  • “Full swapability” refers to the ability to swap the order of both V H1 and V H2 domains, and therefore the order of V L1 and V L2 domains, in the polypeptide chain of formula I or the polypeptide chain of formula II (i.e., to reverse the order) while maintaining full functionality of the binding protein as evidenced by the retention of binding affinity.
  • V H and V L refer only to the domain's location on a particular protein chain in the final format.
  • V H1 and V H2 could be derived from V L1 and V L2 domains in parent antibodies and placed into the V H1 and V H2 positions in the binding protein.
  • V L1 and V L2 could be derived from V H1 and V H2 domains in parent antibodies and placed in the V H1 and V H2 positions in the binding protein.
  • the V H and V L designations refer to the present location and not the original location in a parent antibody. V H and V L domains are therefore “swappable.”
  • antigen or “target antigen” or “antigen target” as used herein refers to a molecule or a portion of a molecule that is capable of being bound by a binding protein, and additionally is capable of being used in an animal to produce antibodies capable of binding to an epitope of that antigen.
  • a target antigen may have one or more epitopes. With respect to each target antigen recognized by a binding protein, the binding protein is capable of competing with an intact antibody that recognizes the target antigen.
  • HIV Human Immunodeficiency Virus
  • HIV infection generally encompasses infection of a host, particularly a human host, by the human immunodeficiency virus (HIV) family of retroviruses including, but not limited to, HIV I, HIV II, HIV III (also known as HTLV-II, LAV-1, LAV-2). HIV can be used herein to refer to any strains, forms, subtypes, clades and variations in the HIV family.
  • HIV infection will encompass the treatment of a person who is a carrier of any of the HIV family of retroviruses or a person who is diagnosed with active AIDS, as well as the treatment or prophylaxis of the AIDS-related conditions in such persons.
  • AIDS as used herein means Acquired Immunodeficiency Syndrome. AIDS is caused by HIV.
  • CD4bs or “CD4 binding site” refer to the binding site for CD4 (cluster of differentiation 4), which is a glycoprotein found on the surface of immune cells such as T helper cells, monocytes, macrophages, and dendritic cells.
  • CD3 is cluster of differentiation factor 3 polypeptide and is a T-cell surface protein that is typically part of the T cell receptor (TCR) complex.
  • CD28 is cluster of differentiation 28 polypeptide and is a T-cell surface protein that provides co-stimulatory signals for T-cell activation and survival.
  • glycoprotein 160 or “gp160 protein” refers to the envelope glycoprotein complex of HIV and which is a homotrimer that is cleaved into gp120 and gp41 subunits.
  • MPER refers to the membrane-proximal external region of glycoprotein 41 (gp41), which is a subunit of the envelope protein complex of retroviruses, including HIV.
  • glycocan refers to the carbohydrate portion of a glycoconjugate, such as a glycoprotein, glycolipid, or a proteoglycan.
  • glycan refers to the HIV-1 envelope glycoprotein gp120.
  • T-cell engager refers to binding proteins directed to a host's immune system, more specifically the T cells' cytotoxic activity as well as directed to a HIV target protein.
  • trimer apex refers to apex of HIV-1 envelope glycoprotein gp120.
  • the term “monospecific binding protein” refers to a binding protein that specifically binds to one antigen target.
  • binding protein refers to a binding protein that has one antigen binding site.
  • binding protein refers to a binding protein that specifically binds to two different antigen targets.
  • bivalent binding protein refers to a binding protein that has two binding sites.
  • trispecific binding protein refers to a binding protein that specifically binds to three different antigen targets.
  • trivalent binding protein refers to a binding protein that has three binding sites. In particular embodiments the trivalent binding protein can bind to one antigen target. In other embodiments, the trivalent binding protein can bind to two antigen targets. In other embodiments, the trivalent binding protein can bind to three antigen targets.
  • an “isolated” binding protein is one that has been identified and separated and/or recovered from a component of its natural environment. Contaminant components of its natural environment are materials that would interfere with diagnostic or therapeutic uses for the binding protein, and may include enzymes, hormones, and other proteinaceous or non-proteinaceous solutes.
  • the binding protein will be purified: (1) to greater than 95% by weight of antibody as determined by the Lowry method, and most preferably more than 99% by weight, (2) to a degree sufficient to obtain at least 15 residues of N-terminal or internal amino acid sequence by use of a spinning cup sequenator, or (3) to homogeneity by SDS-PAGE under reducing or nonreducing conditions using Coomassie blue or, preferably, silver stain.
  • Isolated binding proteins include the binding protein in situ, within recombinant cells since at least one component of the binding protein's natural environment will not be present.
  • substantially pure or substantially purified refer to a compound or species that is the predominant species present (i.e., on a molar basis it is more abundant than any other individual species in the composition).
  • a substantially purified fraction is a composition wherein the species comprises at least about 50% (on a molar basis) of all macromolecular species present.
  • a substantially pure composition will comprise more than about 80%, 85%, 90%, 95%, or 99% of all macromolar species present in the composition.
  • the species is purified to essential homogeneity (contaminant species cannot be detected in the composition by conventional detection methods) wherein the composition consists essentially of a single macromolecular species.
  • a “neutralizing” binding protein as used herein refers to a molecule that is able to block or substantially reduce an effector function of a target antigen to which it binds.
  • substantially reduce means at least about 60%, preferably at least about 70%, more preferably at least about 75%, even more preferably at least about 80%, still more preferably at least about 85%, most preferably at least about 90% reduction of an effector function of the target antigen.
  • epitope includes any determinant, preferably a polypeptide determinant, capable of specifically binding to an immunoglobulin or T-cell receptor.
  • epitope determinants include chemically active surface groupings of molecules such as amino acids, sugar side chains, phosphoryl groups, or sulfonyl groups, and, in certain embodiments, may have specific three-dimensional structural characteristics and/or specific charge characteristics.
  • An epitope is a region of an antigen that is bound by an antibody or binding protein.
  • a binding protein is said to specifically bind an antigen when it preferentially recognizes its target antigen in a complex mixture of proteins and/or macromolecules.
  • a binding protein is said to specifically bind an antigen when the equilibrium dissociation constant is ⁇ 10 ⁇ 8 M, more preferably when the equilibrium dissociation constant is ⁇ 10 ⁇ 9 M, and most preferably when the dissociation constant is ⁇ 10 ⁇ 10 M.
  • the dissociation constant (K D ) of a binding protein can be determined, for example, by surface plasmon resonance.
  • surface plasmon resonance analysis measures real-time binding interactions between ligand (a target antigen on a biosensor matrix) and analyte (a binding protein in solution) by surface plasmon resonance (SPR) using the BIAcore system (Pharmacia Biosensor; Piscataway, N.J.).
  • SPR surface plasmon resonance
  • Surface plasmon analysis can also be performed by immobilizing the analyte (binding protein on a biosensor matrix) and presenting the ligand (target antigen).
  • K D refers to the dissociation constant of the interaction between a particular binding protein and a target antigen.
  • the term “specifically binds” as used herein refers to the ability of a binding protein or an antigen-binding fragment thereof to bind to an antigen containing an epitope with an Kd of at least about 1 ⁇ 10 ⁇ 6 M, 1 ⁇ 10 ⁇ 7 M, 1 ⁇ 10 ⁇ 8 M, 1 ⁇ 10 ⁇ 9 M, 1 ⁇ 10 ⁇ 10 M, 1 ⁇ 10 ⁇ 11 M, 1 ⁇ 10 ⁇ 12 M, or more, and/or to bind to an epitope with an affinity that is at least two-fold greater than its affinity for a nonspecific antigen.
  • linker refers to one or more amino acid residues inserted between immunoglobulin domains to provide sufficient mobility for the domains of the light and heavy chains to fold into cross over dual variable region immunoglobulins.
  • a linker is inserted at the transition between variable domains or between variable and constant domains, respectively, at the sequence level.
  • the transition between domains can be identified because the approximate size of the immunoglobulin domains are well understood.
  • the precise location of a domain transition can be determined by locating peptide stretches that do not form secondary structural elements such as beta-sheets or alpha-helices as demonstrated by experimental data or as can be assumed by techniques of modeling or secondary structure prediction.
  • the linkers described herein are referred to as L 1 , which is located on the light chain between the C-terminus of the V L2 and the N-terminus of the V L1 domain; and L 2 , which is located on the light chain between the C-terminus of the V L1 and the N-terminus of the C L domain.
  • the heavy chain linkers are known as L 3 , which is located between the C-terminus of the V H1 and the N-terminus of the V H2 domain; and L 4 , which is located between the C-terminus of the V H2 and the N-terminus of the C H1 domain.
  • vector refers to any molecule (e.g., nucleic acid, plasmid, or virus) that is used to transfer coding information to a host cell.
  • the term “vector” includes a nucleic acid molecule that is capable of transporting another nucleic acid to which it has been linked.
  • plasmid refers to a circular double-stranded DNA molecule into which additional DNA segments may be inserted.
  • viral vector Another type of vector, wherein additional DNA segments may be inserted into the viral genome.
  • Certain vectors are capable of autonomous replication in a host cell into which they are introduced (e.g., bacterial vectors having a bacterial origin of replication and episomal mammalian vectors).
  • vectors e.g., non-episomal mammalian vectors
  • vectors can be integrated into the genome of a host cell upon introduction into the host cell and thereby are replicated along with the host genome.
  • certain vectors are capable of directing the expression of genes to which they are operatively linked.
  • Such vectors are referred to herein as “recombinant expression vectors” (or simply, “expression vectors”).
  • expression vectors of utility in recombinant DNA techniques are often in the form of plasmids.
  • plasmid and “vector” may be used interchangeably herein, as a plasmid is the most commonly used form of vector.
  • the disclosure is intended to include other forms of expression vectors, such as viral vectors (e.g., replication defective retroviruses, adenoviruses, and adeno-associated viruses), which serve equivalent functions.
  • recombinant host cell refers to a cell into which a recombinant expression vector has been introduced.
  • a recombinant host cell or host cell is intended to refer not only to the particular subject cell, but also to the progeny of such a cell. Because certain modifications may occur in succeeding generations due to either mutation or environmental influences, such progeny may not, in fact, be identical to the parent cell, but such cells are still included within the scope of the term “host cell” as used herein.
  • host cell expression systems can be used to express the binding proteins, including bacterial, yeast, baculoviral, and mammalian expression systems (as well as phage display expression systems).
  • a suitable bacterial expression vector is pUC19.
  • a host cell is transformed or transfected with one or more recombinant expression vectors carrying DNA fragments encoding the polypeptide chains of the binding protein such that the polypeptide chains are expressed in the host cell and, preferably, secreted into the medium in which the host cells are cultured, from which medium the binding protein can be recovered.
  • transformation refers to a change in a cell's genetic characteristics, and a cell has been transformed when it has been modified to contain a new DNA.
  • a cell is transformed where it is genetically modified from its native state.
  • the transforming DNA may recombine with that of the cell by physically integrating into a chromosome of the cell, or may be maintained transiently as an episomal element without being replicated, or may replicate independently as a plasmid.
  • a cell is considered to have been stably transformed when the DNA is replicated with the division of the cell.
  • transfection refers to the uptake of foreign or exogenous DNA by a cell, and a cell has been “transfected” when the exogenous DNA has been introduced inside the cell membrane.
  • transfection techniques are well known in the art. Such techniques can be used to introduce one or more exogenous DNA molecules into suitable host cells.
  • non-naturally occurring refers to the fact that the object can be found in nature and has not been manipulated by man.
  • a polynucleotide or polypeptide that is present in an organism (including viruses) that can be isolated from a source in nature and that has not been intentionally modified by man is naturally-occurring.
  • non-naturally occurring refers to an object that is not found in nature or that has been structurally modified or synthesized by man.
  • the twenty conventional amino acids and their abbreviations follow conventional usage.
  • Stereoisomers e.g., D -amino acids
  • unnatural amino acids and analogs such as ⁇ -, ⁇ -disubstituted amino acids, N-alkyl amino acids, lactic acid, and other unconventional amino acids may also be suitable components for the polypeptide chains of the binding proteins.
  • Examples of unconventional amino acids include: 4-hydroxyproline, ⁇ -carboxyglutamate, ⁇ -N,N,N-trimethyllysine, ⁇ -N-acetyllysine, O-phosphoserine, N-acetylserine, N-formylmethionine, 3-methylhistidine, 5-hydroxylysine, ⁇ -N-methylarginine, and other similar amino acids and imino acids (e.g., 4-hydroxyproline).
  • the left-hand direction is the amino terminal direction and the right-hand direction is the carboxyl-terminal direction, in accordance with standard usage and convention.
  • Naturally occurring residues may be divided into classes based on common side chain properties:
  • hydrophobic Met, Ala, Val, Leu, Ile, Phe, Trp, Tyr, Pro
  • polar hydrophilic Arg, Asn, Asp, Gln, Glu, His, Lys, Ser, Thr
  • aliphatic Ala, Gly, Ile, Leu, Val, Pro
  • aliphatic hydrophobic Ala, Ile, Leu, Val, Pro
  • neutral hydrophilic Cys, Ser, Thr, Asn, Gln
  • acidic Asp, Glu
  • basic His, Lys, Arg
  • residues that influence chain orientation Gly, Pro
  • aromatic His, Trp, Tyr, Phe
  • aromatic hydrophobic Phe, Trp, Tyr.
  • Conservative amino acid substitutions may involve exchange of a member of one of these classes with another member of the same class.
  • Non-conservative substitutions may involve the exchange of a member of one of these classes for a member from another class.
  • a skilled artisan will be able to determine suitable variants of the polypeptide chains of the binding proteins using well-known techniques. For example, one skilled in the art may identify suitable areas of a polypeptide chain that may be changed without destroying activity by targeting regions not believed to be important for activity. Alternatively, one skilled in the art can identify residues and portions of the molecules that are conserved among similar polypeptides. In addition, even areas that may be important for biological activity or for structure may be subject to conservative amino acid substitutions without destroying the biological activity or without adversely affecting the polypeptide structure.
  • patient includes human and animal subjects.
  • treatment refers to both therapeutic treatment and prophylactic or preventative measures.
  • Those in need of treatment include those having the disorder as well as those prone to have a disorder or those in which the disorder is to be prevented.
  • binding proteins can be used to treat humans infected with HIV, or humans susceptible to HIV infection, or ameliorate HIV infection in a human subject infected with HIV.
  • the binding proteins can also be used to prevent HIV in a human patient.
  • treating humans infected with HIV include those subjects who are at any one of the several stages of HIV infection progression, which, for example, include acute primary infection syndrome (which can be asymptomatic or associated with an influenza-like illness with fevers, malaise, diarrhea and neurologic symptoms such as headache), asymptomatic infection (which is the long latent period with a gradual decline in the number of circulating CD4 + T cells), and AIDS (which is defined by more serious AIDS-defining illnesses and/or a decline in the circulating CD4 cell count to below a level that is compatible with effective immune function).
  • acute primary infection syndrome which can be asymptomatic or associated with an influenza-like illness with fevers, malaise, diarrhea and neurologic symptoms such as headache
  • asymptomatic infection which is the long latent period with a gradual decline in the number of circulating CD4 + T cells
  • AIDS which is defined by more serious AIDS-defining illnesses and/or a decline in the circulating CD4 cell count to below a level that is compatible with effective immune function).
  • treating or preventing HIV infection will also encompass treating suspected infection by HIV after suspected past exposure to HIV by e.g., contact with HIV-contaminated blood, blood transfusion, exchange of body fluids, “unsafe” sex with an infected person, accidental needle stick, receiving a tattoo or acupuncture with contaminated instruments, or transmission of the virus from a mother to a baby during pregnancy, delivery or shortly thereafter.
  • composition or “therapeutic composition” as used herein refer to a compound or composition capable of inducing a desired therapeutic effect when properly administered to a patient.
  • pharmaceutically acceptable carrier or “physiologically acceptable carrier” as used herein refers to one or more formulation materials suitable for accomplishing or enhancing the delivery of a binding protein.
  • a therapeutically effective amount when used in reference to a pharmaceutical composition comprising one or more binding proteins refer to an amount or dosage sufficient to produce a desired therapeutic result. More specifically, a therapeutically effective amount is an amount of a binding protein sufficient to inhibit, for some period of time, one or more of the clinically defined pathological processes associated with the condition being treated. The effective amount may vary depending on the specific binding protein that is being used, and also depends on a variety of factors and conditions related to the patient being treated and the severity of the disorder. For example, if the binding protein is to be administered in vivo, factors such as the age, weight, and health of the patient as well as dose response curves and toxicity data obtained in preclinical animal work would be among those factors considered. The determination of an effective amount or therapeutically effective amount of a given pharmaceutical composition is well within the ability of those skilled in the art.
  • One embodiment of the disclosure provides a pharmaceutical composition
  • a pharmaceutical composition comprising a pharmaceutically acceptable carrier and a therapeutically effective amount of a binding protein.
  • the binding protein of the disclosure is a trispecific and/or trivalent binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., three different) HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is an immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • the binding protein of the disclosure is a trispecific and/or trivalent binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., three different) HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is an immunoglobulin C H1 heavy chain constant domain
  • C H2 is an immunoglobulin C H2 heavy chain constant domain
  • C H3 is an immunoglobulin C H3 heavy chain constant domain
  • hinge is an immunoglobulin hinge region connecting the C H1 and C H2 domains
  • L 1 , L 2 , L 3 and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • the first polypeptide chain and the second polypeptide chain have a cross-over orientation that forms two distinct antigen binding sites.
  • the V H1 and V L1 form a binding pair and form the first antigen binding site.
  • the V H2 and V L2 form a binding pair and form the second antigen binding site.
  • the third polypeptide and the fourth polypeptide form a third antigen binding site.
  • the V H3 and V L3 form a binding pair and form the third antigen binding site.
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-283; and V H1 , V H2 and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
  • V L1 , V L2 and V L3 are each independently a light chain variable domain comprising a light chain variable domain sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein.
  • V H1 , V H2 and V H3 are each independently a heavy chain variable domain comprising a heavy chain variable domain sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein.
  • V L1 , V L2 and V L3 are each independently a light chain variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein.
  • V H1 , V H2 and V H3 are each independently a heavy chain variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein.
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and V H1 , V H2 and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • the order of the V H1 and V H2 domains, and therefore the order of V L1 and V L2 domains, in the polypeptide chain of formula I or the polypeptide chain of formula II (i.e., to reverse the order) are swapped.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 4 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 4;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 3 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 3;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 1 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 1;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 2 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 2.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 12 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 12;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 11 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 11;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 9 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 9;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 10 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 10.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 20 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 20;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 19 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 19;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 17 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 17;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 18 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 18.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 28 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 28;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 27 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 27;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 25 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 25;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 26 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 26.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 36 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 36;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 35 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 35;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 33 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 33;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 34 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 34.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 44 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 44;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 43 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 43;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 41 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 41;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 42 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 42.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 52 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 52;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 51 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 51;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 49 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 49;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 50 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 50.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 60 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 60;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 59 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 59;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 57 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 57;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 58 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 58.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 68 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 68;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 67 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 67;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 65 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 65;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 66 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 66.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 76 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 76;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 75 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 75;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 73 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 73;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 74 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 74.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 84 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 84;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 83 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 83;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 81 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 81;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 82 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 82.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 92 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:92;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 91 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 91;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 89 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 89;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 90 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 90.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 100 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 100;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 99 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 99;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 97 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 97;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 98 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 98.
  • the first polypeptide comprises the amino acid sequence of SEQ ID NO: 108 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 108;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 107 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 107;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 105 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 105;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 106 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 106.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 116 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 116;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 115 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 115;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 113 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 113;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 114 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 114.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 124 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 124;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 123 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 123;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 121 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 121;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 122 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 122.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 132 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 132;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 131 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 131;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 129 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 129;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 130 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 130.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 140 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 140;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 139 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 139;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 137 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 137;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 138 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 138.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 148 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 148;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 147 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 147;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 145 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 145;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 146 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 146.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 156 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 156;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 155 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 155;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 153 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 153;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 154 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 154.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 164 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 164;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 163 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 163;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 161 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 161;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 162 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 162.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 172 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 172;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 171 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 171;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 169 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 169;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 170 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 170.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 180 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 180;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 179 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 179;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 177 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 177;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 178 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 178.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 188 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 188;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 187 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 187;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 185 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 185;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 186 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 186.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 196 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 196;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 195 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 195;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 193 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 193;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 194 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 194.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 204 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 204;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 203 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 203;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 201 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 201;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 202 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 202.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 212 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 212;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 211 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 211;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 209 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 209;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 210 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 210.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 220 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 220;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 219 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 219;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 217 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 217;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 218 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 218.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 228 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 228;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 227 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 227;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 225 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 225;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 226 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 226.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 235 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 235;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 234 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 234;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 232 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 232;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 233 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 233.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 243 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 243;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 242 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 242;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 240 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 240;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 241 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 241.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 305 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 305;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 304 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 304;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 302 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 302;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 303 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 303.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 313 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 313;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 312 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 312;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 310 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 310;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 311 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 311.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 321 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 321;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 320 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 320;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 318 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 318;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 319 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 319.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 329 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 329;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 328 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 328;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 326 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 326;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 327 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 327.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 337 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 337;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 336 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 336;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 334 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 334;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 335 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 335.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 345 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 345;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 344 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 344;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 342 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 342;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 343 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 343.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 353 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 353;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 352 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:352;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 350 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 350;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 351 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 351.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 361 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 361;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 360 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 360;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 358 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 358;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 359 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 359.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 369 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 369;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 368 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 368;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 366 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 366;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 367 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 367.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 377 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 377;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 376 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 376;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 374 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 374;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 375 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 375.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 385 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 385;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 384 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 384;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 382 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 382;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 383 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 383.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 393 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 393;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 392 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 392;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 390 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 390;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 391 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 391.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 401 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 401;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 400 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 400;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 398 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 398;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 399 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 399.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 409 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 409;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 408 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 408;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 406 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 406;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 407 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 407.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 417 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 417;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 416 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 416;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 414 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 414;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 415 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 415.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 425 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 425;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 424 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 424;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 422 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 422;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 423 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 423.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 433 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:433;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 432 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 432;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 430 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 430;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 431 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 431.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 449 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 449;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 448 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 448;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 446 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 446;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 447 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 447.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 457 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 457;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 456 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 456;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 454 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 454;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 455 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 455.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 465 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 465;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 464 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 464;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 462 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 462;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 463 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 463.
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 473 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 473;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 472 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 472;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 470 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 470;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 471 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 471.
  • the binding protein of the disclosure is a trispecific and/or trivalent binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., three) HIV target antigens, wherein a first polypeptide chain has a structure represented by the formula:
  • a third polypeptide chain has a structure represented by the formula:
  • polypeptide chain has a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • the binding protein of the disclosure is a trispecific and/or trivalent binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., three) HIV target antigens, wherein a first polypeptide chain has a structure represented by the formula:
  • a third polypeptide chain has a structure represented by the formula:
  • polypeptide chain has a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising an amino acid sequence having at least about 80%, at least about 81%, at least about 82%, at least about 83%, at least about 84%, at least about 85%, at least about 86%, at least about 87%, at least about 88%, at least about 89%, at least about 90%, at least about 91%, at least about 92%, at least about 93%, at least about 94%, at least about 95%, at least about 96%, at least about 97%, at least about 98%, or at least about 99% sequence identity to a sequence as set forth in any one of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising an amino acid sequence having at least about 80%, at least about 81%, at least about 82%, at least about 83%, at least about 84%, at least about 85%, at least about 86%, at least about 87%, at least about 88%, at least about 89%, at least about 90%, at least about 91%, at least about 92%, at least about 93%, at least about 94%, at least about 95%, at least about 96%, at least about 97%, at least about 98%, or at least about 99% sequence identity to a sequence as set forth in any one of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • V L1 , V L2 , and V L3 comprise an amino acid sequence as set forth in SEQ ID NOs: 518, 519, and 512, respectively, and V H1 , V H2 , and V H3 comprise an amino acid sequence as set forth in SEQ ID NOs: 504, 506, and 502, respectively.
  • V L1 , V L2 , and V L3 comprise an amino acid sequence as set forth in SEQ ID NOs: 518, 519, and 513, respectively, and V H1 , V H2 , and V H3 comprises an amino acid sequence as set forth in SEQ ID NOs: 504, 506, and 503, respectively.
  • V L1 , V L2 , and V L3 comprises an amino acid sequence as set forth in SEQ ID NOs: 519, 518, and 513, respectively
  • V H1 , V H2 , and V H3 comprises an amino acid sequence as set forth in SEQ ID NOs: 506, 504, and 503, respectively.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a light chain variable domain sequence shown in Table C.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a heavy chain variable domain sequence shown in Table C.
  • V L1 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 518
  • V L2 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 519
  • V L3 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 512
  • V H1 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 504
  • V H2 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 506, and V H3 is
  • V L1 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 518
  • V L2 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 519
  • V L3 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 513
  • V H1 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 504
  • V H is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 506, and V H3 is a
  • V L1 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 519
  • V L2 is a variable domain comprising a CDR-L1.
  • V L3 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 513
  • V H1 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 506
  • V H2 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 504
  • V H3 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 503.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising: (a) a CDR-L1 comprising a sequence selected from the group consisting of SEQ ID NOs: 266, 269, 275, 278, 281, and 500; (b) a CDR-L2 comprising a sequence selected from the group consisting of SEQ ID NOs: 267, 270, 276, 279, 282, and 501; and/or (c) a CDR-L3 comprising a sequence selected from the group consisting of SEQ ID NOs: 268, 271, 274, 277, 280, and 283.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 comprising amino acid sequences as shown in Table B.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising: (a) a CDR-H1 comprising a sequence selected from the group consisting of SEQ ID NOs: 248, 251, 254, 257, 263, and 499; (b) a CDR-H2 comprising a sequence selected from the group consisting of SEQ ID NOs: 252, 255, 258, 261, 264, and 497; and/or (c) a CDR-H3 comprising a sequence selected from the group consisting of SEQ ID NOs: 250, 253, 256, 259, 262, 265, and 498.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 comprising amino acid sequences as shown in Table B.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 500, 501, and 274, respectively;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 275, 276, and 277, respectively;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 266, 267, and 268, respectively;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 254, 255, and 256, respectively;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 257, 258, and 259, respectively; and
  • V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 500, 501, and 274, respectively;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 275, 276, and 277, respectively;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 269, 270, and 271, respectively;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 254, 255, and 256, respectively;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 257, 258, and 259, respectively; and
  • V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 275, 276, and 277, respectively;
  • V 2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 500, 501, and 274, respectively;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 269, 270, and 271, respectively;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 257, 258, and 259, respectively;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 254, 255, and 256, respectively; and
  • V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the
  • a binding protein of the present disclosure comprises four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., one or two) HIV target proteins and one or more (e.g., one or two) T cell target proteins, wherein a first polypeptide chain has a structure represented by the formula:
  • a second polypeptide chain has a structure represented by the formula:
  • a third polypeptide chain has a structure represented by the formula:
  • polypeptide chain has a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is an immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • a binding protein of the present disclosure comprises four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., one or two) HIV target proteins and one or more (e.g., one or two) T cell target proteins, wherein a first polypeptide chain has a structure represented by the formula:
  • a second polypeptide chain has a structure represented by the formula:
  • a third polypeptide chain has a structure represented by the formula:
  • a fourth polypeptide chain has a structure represented by the formula
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is an immunoglobulin C H1 heavy chain constant domain
  • C H2 is an immunoglobulin C H2 heavy chain constant domain
  • C H3 is an immunoglobulin C H3 heavy chain constant domain
  • hinge is an immunoglobulin hinge region connecting the C H1 and C H2 domains
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • the first polypeptide chain and the second polypeptide chain have a cross-over orientation that forms two distinct antigen binding sites.
  • the V H1 and V L1 form a binding pair and form the first antigen binding site.
  • the V H2 and V L2 form a binding pair and form the second antigen binding site.
  • the third polypeptide and the fourth polypeptide form a third antigen binding site.
  • the V H3 and V L3 form a binding pair and form the third antigen binding site.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising an amino acid sequence having at least about 80%, at least about 81%, at least about 82%, at least about 83%, at least about 84%, at least about 85%, at least about 86%, at least about 87%, at least about 88%, at least about 89%, at least about 90%, at least about 91%, at least about 92%/0, at least about 93%, at least about 94%, at least about 95%, at least about 96%, at least about 97%, at least about 98%, or at least about 99% sequence identity to a sequence as set forth in any one of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising an amino acid sequence having at least about 80%, at least about 81%, at least about 82%, at least about 83%, at least about 84%, at least about 85%, at least about 86%, at least about 87%, at least about 88%, at least about 89%, at least about 90%, at least about 91%, at least about 92%, at least about 93%, at least about 94%, at least about 95%, at least about 96%, at least about 97%, at least about 98%, or at least about 990% sequence identity to a sequence as set forth in any one of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • V L1 , V L2 , and V L3 comprise an amino acid sequence as set forth in SEQ ID NOs: 522, 524, and 513, respectively, and V H1 , V H2 , and V H3 comprise an amino acid sequence as set forth in SEQ ID NOs: 509, 511, and 503, respectively.
  • V L1 , V L 2, and V L3 comprise an amino acid sequence as set forth in SEQ ID NOs: 524, 522, and 513, respectively, and V H1 , V H2 , and V H3 comprise an amino acid sequence as set forth in SEQ ID NOs: 511, 509, and 503, respectively.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • V L1 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 522
  • V L2 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 524
  • V L3 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 513
  • V H1 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 509
  • V H2 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 511
  • V H3 is
  • V L1 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 524
  • V L2 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 522
  • V L3 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a light chain variable domain sequence of SEQ ID NO: 513
  • V H1 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 511
  • V H2 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 509
  • V L1 , V L2 and V L3 are each independently a variable domain comprising: (a) a CDR-L1 comprising a sequence selected from the group consisting of SEQ ID NOs: 266, 269, 275, 278, 281, 488, 491, 494 and 500; (b) a CDR-L2 comprising a sequence selected from the group consisting of SEQ ID NOs: 267, 270, 276, 279, 282, 489, 492, 495, and 501; and (c) a CDR-L3 comprising a sequence selected from the group consisting of SEQ ID NOs: 268, 271, 274, 277, 280, 283, 490, 493, and 496.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 comprising amino acid sequences as shown in Table B.
  • V L1 , V L2 and V L3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs:
  • V H1 , V H2 and V H3 are each independently a variable domain comprising: (a) a CDR-H1 comprising a sequence selected from the group consisting of SEQ ID NOs: 248, 251, 254, 257, 263, 479, 482, 485, and 499; (b) a CDR-H2 comprising a sequence selected from the group consisting of SEQ ID NOs: 252, 255, 258, 261, 264, 480, 483, 486, and 497; and (c) a CDR-H3 comprising a sequence selected from the group consisting of SEQ ID NOs: 250, 253, 256, 259, 262, 265, 481, 484, 487, and 498.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 comprising amino acid sequences as shown in Table B.
  • V H1 , V H2 and V H3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs:
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 488, 489, and 490, respectively;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 494, 495, and 496, respectively;
  • V L3 comprises a CDR-L1.
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 479, 480, and 481, respectively
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 485, 486, and 487, respectively
  • V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 251, 252, and 253, respectively.
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 494, 495, and 496, respectively;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 488, 489, and 490, respectively;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 269, 270, and 271, respectively;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 485, 486, and 487, respectively;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 479, 480, and 481, respectively; and
  • V H3 comprises a CDR-H1, CDR-H2, and CDR-H3
  • V L1 and V H1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein
  • V L3 and V H3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein.
  • V L1 and V H1 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 described herein
  • V L3 and V H3 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein.
  • V L1 and V H1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein
  • V L3 and V H3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein.
  • V L1 and V H1 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein
  • V L3 and V H3 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 described herein.
  • V L1 and V H1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein
  • V L3 and V H3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein.
  • V L1 and V H1 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein
  • V L3 and V H3 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein.
  • V L1 and V H1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein
  • V L3 and V H3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein.
  • V L1 and V H1 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein
  • V L3 and V H3 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein.
  • V L1 and V H1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein
  • V L3 and V H3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein.
  • V L1 and V H1 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein
  • V L3 and V H3 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 described herein.
  • V L1 and V H1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein
  • V L3 and V H3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein.
  • V L1 and V H1 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein
  • V L2 and V H2 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 or CD28_2 described herein
  • V L3 and V H 3 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein.
  • the binding proteins specifically bind to one or more HIV target proteins.
  • the binding proteins are trispecific and specifically bind to MPER of the HIV-1 gp41 protein, a CD4 binding site of the HIV-1 gp120 protein, a glycan in the V3 loop of the HIV-1 gp120 protein, a trimer apex of the HIV-1 gp120 protein or gp160.
  • the binding proteins specifically bind to one or more HIV target proteins and one or more target proteins on a T-cell including T cell receptor complex. These T-cell engager binding proteins are capable of recruiting T cells transiently to target cells and, at the same time, activating the cytolytic activity of the T cells.
  • the T-cell engager trispecific antibodies can be used to activate HIV-1 reservoirs and redirect/activate T cells to lyse latently infected HIV-1 + T cells.
  • target proteins on T cells include but are not limited to CD3 and CD28, among others.
  • the trispecific binding proteins may be generated by combining the antigen binding domains of two or more monospecific antibodies (parent antibodies) into one antibody. See International Publication Nos. WO 2011/038290 A2, WO 2013/086533 A1, WO 2013/070776 A1, WO 2012/154312 A1, and WO 2013/163427 A1, which are hereby incorporated into this disclosure by reference.
  • the binding proteins of the disclosure may be prepared using domains or sequences obtained or derived from any human or non-human antibody, including, for example, human, murine, or humanized antibodies.
  • the trivalent binding protein is capable of binding three different antigen targets.
  • the binding protein is trispecific and one light chain-heavy chain pair is capable of binding two different antigen targets or epitopes and one light chain-heavy chain pair is capable of binding one antigen target or epitope.
  • the binding protein is capable of binding three different HIV antigen targets that are located on the HIV envelope glycoprotein structure composed of gp120 and gp41 subunits.
  • the binding protein is capable of inhibiting the function of one or more of the antigen targets.
  • a binding protein of the present disclosure binds one or more HIV target proteins.
  • the binding protein is capable of specifically binding three different epitopes on a single HIV target protein.
  • the binding protein is capable of binding two different epitopes on a first HIV target protein, and one epitope on a second HIV target protein.
  • the first and second HIV target proteins are different.
  • the binding protein is capable of specifically binding three different HIV target protein.
  • the one or more HIV target proteins are one or more of glycoprotein 120, glycoprotein 41, and glycoprotein 160.
  • a binding protein of the present disclosure binds one or more HIV target proteins and one or more T cell target proteins.
  • the binding protein is capable of specifically binding one HIV target protein and two different epitopes on a single T cell target protein.
  • the binding protein is capable of specifically binding one HIV target protein and two different T cell target proteins (e.g., CD28 and CD3).
  • the binding protein is capable of specifically binding one T cell target protein and two different epitopes on a single HIV target protein.
  • the binding protein is capable of specifically binding one T cell target protein and two different HIV target proteins.
  • the first and second polypeptide chains of the binding protein form two antigen binding sites that specifically target two T cell target proteins, and the third and fourth polypeptide chains of the binding protein form an antigen binding site that specifically binds an HIV target protein.
  • the one or more HIV target proteins are one or more of glycoprotein 120, glycoprotein 41, and glycoprotein 160.
  • the one or more T cell target proteins are one or more of CD3 and CD28.
  • the linkers can also be 10, 9, 8, 7, 6, 5, 4, 3, 2, or 1 amino acids long.
  • L 1 , L 2 , L 3 , and L 4 in one binding protein may all have the same amino acid sequence or may all have different amino acid sequences.
  • linkers include a single glycine (Gly) residue; a diglycine peptide (Gly-Gly); a tripeptide (Gly-Gly-Gly); a peptide with four glycine residues (Gly-Gly-Gly-Gly; SEQ ID NO: 285); a peptide with five glycine residues (Gly-Gly-Gly-Gly-Gly; SEQ ID NO: 286); a peptide with six glycine residues (Gly-Gly-Gly-Gly-Gly-Gly; SEQ ID NO: 287); a peptide with seven glycine residues (Gly-Gly-Gly-Gly-Gly-Gly-Gly-Gly; SEQ ID NO: 288); a peptide with eight glycine residues (Gly-Gly-Gly-Gly-Gly-Gly-Gly-Gly; SEQ ID NO: 289).
  • amino acid residues may be used such as the peptide Gly-Gly-Gly-Gly-Gly-Ser (SEQ ID NO: 290), the peptide Gly-Gly-Gly-Gly-Ser-Gly-Gly-Gly-Gly-Gly-Ser (SEQ ID NO: 291) and the peptide Gly-Gly-Gly-Gly-Ser-Gly-Gly-Gly-Gly-Gly-Gly-Gly-Gly-Ser (SEQ ID NO: 292).
  • linkers include a single Ser, and Val residue; the dipeptide Arg-Thr, Gln-Pro, Ser-Ser, Thr-Lys, and Ser-Leu; Thr-Lys-Gly-Pro-Ser (SEQ ID NO: 293), Thr-Val-Ala-Ala-Pro (SEQ ID NO: 294), Gln-Pro-Lys-Ala-Ala (SEQ ID NO: 295), Gln-Arg-Ile-Glu-Gly (SEQ ID NO: 296); Ala-Ser-Thr-Lys-Gly-Pro-Ser (SEQ ID NO: 297), Arg-Thr-Val-Ala-Ala-Pro-Ser (SEQ ID NO: 298), Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299), and His-Ile-Asp-Ser-Pro-Asn-Lys (SEQ ID NO: 300).
  • linkers comprising randomly selected amino acids selected from the group consisting of valine, leucine, isoleucine, serine, threonine, lysine, arginine, histidine, aspartate, glutamate, asparagine, glutamine, glycine, and proline have been shown to be suitable in the binding proteins.
  • the identity and sequence of amino acid residues in the linker may vary depending on the type of secondary structural element necessary to achieve in the linker. For example, glycine, serine, and alanine are best for linkers having maximum flexibility. Some combination of glycine, proline, threonine, and serine are useful if a more rigid and extended linker is necessary. Any amino acid residue may be considered as a linker in combination with other amino acid residues to construct larger peptide linkers as necessary depending on the desired properties.
  • the length of L 1 is at least twice the length of L 3 . In some embodiments, the length of L 2 is at least twice the length of L 4 . In some embodiments, the length of L 1 is at least twice the length of L 3 , and the length of L 2 is at least twice the length of L 4 . In some embodiments, L 1 is 3 to 12 amino acid residues in length, L 2 is 3 to 14 amino acid residues in length, L 3 is 1 to 8 amino acid residues in length, and L 4 is 1 to 3 amino acid residues in length.
  • L 1 is 5 to 10 amino acid residues in length
  • L 2 is 5 to 8 amino acid residues in length
  • L 3 is 1 to 5 amino acid residues in length
  • L 4 is 1 to 2 amino acid residues in length.
  • L 1 is 7 amino acid residues in length
  • L 2 is 5 amino acid residues in length
  • L 3 is 1 amino acid residue in length
  • L 4 is 2 amino acid residues in length.
  • L 1 , L 2 , L 3 , and/or L 4 comprise the sequence Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • L 1 comprises the sequence Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • L 3 comprises the sequence Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • L 1 , L 2 , L 3 , and/or L 4 comprise the sequence Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
  • L 1 comprises the sequence Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
  • L 1 comprises the sequence Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299)
  • L 2 comprises the sequence Thr-Lys-Gly-Pro-Ser-Arg (SEQ ID NO: 526)
  • L 3 comprises the sequence Ser
  • L 4 comprises the sequence Arg-Thr.
  • L 3 comprises the sequence Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
  • L 1 comprises the sequence Ser
  • L 2 comprises the sequence Arg-Thr
  • L 3 comprises the sequence Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299)
  • L 4 comprises the sequence Thr-Lys-Gly-Pro-Ser-Arg (SEQ ID NO: 526).
  • a binding protein of the present disclosure comprises a second polypeptide chain further comprising an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • a binding protein of the present disclosure comprises a third polypeptide chain further comprising an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • a binding protein of the present disclosure comprises a second polypeptide chain further comprising an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, and a third polypeptide chain further comprising an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • the C H3 domains can be altered by the “knob-into-holes” technology which is described in detail with several examples in, for example, International Publication No. WO 96/027011, Ridgway et al., 1996 , Protein Eng. 9: 617-21; and Merchant et al., 1998 , Nat. Biotechnol. 16: 677-81.
  • the interaction surfaces of the two C H3 domains are altered to increase the heterodimerisation of both heavy chains containing these two C H3 domains.
  • Each of the two C H3 domains can be the “knob,” while the other is the “hole.”
  • the introduction of a disulfide bridge further stabilizes the heterodimers (Merchant et al., 1998; Atwell et al., 1997 , J. Mol. Biol. 270: 26-35) and increases the yield.
  • the knob is on the second pair of polypeptides with a single variable domain.
  • the knob is on the first pair of polypeptides having the cross-over orientation.
  • the C H3 domains do not include a knob in hole.
  • a binding protein of the present disclosure comprises a “knob” mutation on the second polypeptide chain and a “hole” mutation on the third polypeptide chain. In some embodiments, a binding protein of the present disclosure comprises a “knob” mutation on the third polypeptide chain and a “hole” mutation on the second polypeptide chain. In some embodiments, the “knob” mutation comprises substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index. In some embodiments, the amino acid substitutions are S354C and T366W. In some embodiments, the “hole” mutation comprises substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index.
  • the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C,
  • the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • a binding protein of the present disclosure comprises one or more mutations to improve serum half-life (See e.g., Hinton, P. R. et al. (2006) J. Immunol. 176(1):346-56).
  • the mutation comprises substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • the binding protein comprises a second polypeptide chain further comprising a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, and a third polypeptide chain further comprising a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • a binding protein of the present disclosure comprises knob and hole mutations and one or more mutations to improve serum half-life.
  • C H1 , C H2 , C H3 and C L of the trispecific binding proteins described herein may comprise any of C H1 , C H2 , C H3 and C L sequences of binding proteins 1-53.
  • Standard recombinant DNA methodologies are used to construct the polynucleotides that encode the polypeptides which form the binding proteins, incorporate these polynucleotides into recombinant expression vectors, and introduce such vectors into host cells. See e.g., Sambrook et al., 2001, M OLECULAR C LONING : A L ABORATORY M ANUAL (Cold Spring Harbor Laboratory Press, 3rd ed.). Enzymatic reactions and purification techniques may be performed according to manufacturer's specifications, as commonly accomplished in the art, or as described herein.
  • isolated nucleic acid molecules comprising a nucleotide sequence encoding any of the binding proteins described herein.
  • the isolated nucleic acid is operably linked to a heterologous promoter to direct transcription of the binding protein-coding nucleic acid sequence.
  • a promoter may refer to nucleic acid control sequences which direct transcription of a nucleic acid.
  • a first nucleic acid sequence is operably linked to a second nucleic acid sequence when the first nucleic acid sequence is placed in a functional relationship with the second nucleic acid sequence.
  • a promoter is operably linked to a coding sequence of a binding protein if the promoter affects the transcription or expression of the coding sequence.
  • promoters may include, but are not limited to, promoters obtained from the genomes of viruses (such as polyoma virus, fowlpox virus, adenovirus (such as Adenovirus 2), bovine papilloma virus, avian sarcoma virus, cytomegalovirus, a retrovirus, hepatitis-B virus, Simian Virus 40 (SV40), and the like), from heterologous eukaryotic promoters (such as the actin promoter, an immunoglobulin promoter, from heat-shock promoters, and the like), the CAG-promoter (Niwa et al., Gene 108(2): 193-9, 1991), the phosphoglycerate kinase (PGK)-promoter, a tetracycline-inducible promoter (Masui et al., Nucleic Acids Res.
  • viruses such as polyoma virus, fowlpox virus, a
  • polynucleotides encoding binding proteins of the present disclosure may be under the control of a constitutive promoter, an inducible promoter, or any other suitable promoter described herein or other suitable promoter that will be readily recognized by one skilled in the art.
  • the isolated nucleic acid is incorporated into a vector.
  • the vector is an expression vector.
  • Expression vectors may include one or more regulatory sequences operatively linked to the polynucleotide to be expressed.
  • regulatory sequence includes promoters, enhancers and other expression control elements (e.g., polyadenylation signals).
  • Suitable enhancers may include, but are not limited to, enhancer sequences from mammalian genes (such as globin, elastase, albumin, ⁇ -fetoprotein, insulin and the like), and enhancer sequences from a eukaryotic cell virus (such as SV40 enhancer on the late side of the replication origin (bp 100-270), the cytomegalovirus early promoter enhancer, the polyoma enhancer on the late side of the replication origin, adenovirus enhancers, and the like).
  • mammalian genes such as globin, elastase, albumin, ⁇ -fetoprotein, insulin and the like
  • enhancer sequences from a eukaryotic cell virus such as SV40 enhancer on the late side of the replication origin (bp 100-270), the cytomegalovirus early promoter enhancer, the polyoma enhancer on the late side of the replication origin, adenovirus enhancers, and the like).
  • suitable vectors may include, for example, plasmids, cosmids, episomes, transposons, and viral vectors (e.g., adenoviral, vaccinia viral, Sindbis-viral, measles, herpes viral, lentiviral, retroviral, adeno-associated viral vectors, etc.).
  • Expression vectors can be used to transfect host cells, such as, for example, bacterial cells, yeast cells, insect cells, and mammalian cells.
  • Biologically functional viral and plasmid DNA vectors capable of expression and replication in a host are known in the art, and can be used to transfect any cell of interest.
  • the vector system comprises one or more vectors encoding a first, second, third, and fourth polypeptide chain of any of the binding proteins described herein.
  • the vector system comprises a first vector encoding the first polypeptide chain of the binding protein, a second vector encoding the second polypeptide chain of the binding protein, a third vector encoding the third polypeptide chain of the binding protein, and a fourth vector encoding the fourth polypeptide chain of the binding protein.
  • the vector system comprises a first vector encoding the first and second polypeptide chains of the binding protein, and a second vector encoding the third and fourth polypeptide chains of the binding protein.
  • the vector system comprises a first vector encoding the first and third polypeptide chains of the binding protein, and a second vector encoding the second and fourth polypeptide chains of the binding protein. In some embodiments, the vector system comprises a first vector encoding the first and fourth polypeptide chains of the binding protein, and a second vector encoding the second and third polypeptide chains of the binding protein. In some embodiments, the vector system comprises a first vector encoding the first, second, third, and fourth polypeptide chains of the binding protein.
  • the one or more vectors of the vector system may be any of the vectors described herein. In some embodiments, the one or more vectors are expression vectors.
  • a host cell comprising one or more isolated polynucleotides, vectors, and/or vector systems described herein.
  • an isolated host cell of the present disclosure is cultured in vitro.
  • the host cell is a bacterial cell (e.g., an E. coli cell).
  • the host cell is a yeast cell (e.g., an S. cerevisiae cell).
  • the host cell is an insect cell.
  • insect host cells may include, for example, Drosophila cells (e.g., S2 cells), Trichoplusia ni cells (e.g., High FiveTM cells), and Spodoptera frugiperda cells (e.g., Sf21 or Sf9 cells).
  • the host cell is a mammalian cell.
  • mammalian host cells may include, for example, human embryonic kidney cells (e.g., 293 or 293 cells subcloned for growth in suspension culture), Expi293TM cells, CHO cells, baby hamster kidney cells (e.g., BHK, ATCC CCL 10), mouse sertoli cells (e.g., TM4 cells), monkey kidney cells (e.g., CV1 ATCC CCL 70), African green monkey kidney cells (e.g., VERO-76, ATCC CRL-1587), human cervical carcinoma cells (e.g., HELA, ATCC CCL 2), canine kidney cells (e.g., MDCK, ATCC CCL 34), buffalo rat liver cells (e.g., BRL 3A, ATCC CRL 1442), human lung cells (e.g., W138, ATCC CCL 75), human liver cells (e.g., Hep G2, HB 8065), mouse mammary tumor cells (e.g., MMT 060562, ATCC CCL51), a
  • the method includes a) culturing a host cell (e.g., any of the host cells described herein) comprising an isolated nucleic acid, vector, and/or vector system (e.g., any of the isolated nucleic acids, vectors, and/or vector systems described herein) under conditions such that the host cell expresses the binding protein; and b) isolating the binding protein from the host cell.
  • a host cell e.g., any of the host cells described herein
  • an isolated nucleic acid, vector, and/or vector system e.g., any of the isolated nucleic acids, vectors, and/or vector systems described herein
  • Methods of isolating proteins from cultured host cells are well known to one of ordinary skill in the art, including, for example, by affinity chromatography (e.g., two step affinity chromatography comprising protein A affinity chromatography followed by size exclusion chromatography).
  • affinity chromatography e.g., two step affinity chromatography comprising protein A affinity chromatography followed by size exclusion chromatography.
  • the binding proteins can be employed in any known assay method, such as competitive binding assays, direct and indirect sandwich assays, and immunoprecipitation assays for the detection and quantitation of one or more target antigens.
  • the binding proteins will bind the one or more target antigens with an affinity that is appropriate for the assay method being employed.
  • binding proteins can be labeled with a detectable moiety.
  • the detectable moiety can be any one that is capable of producing, either directly or indirectly, a detectable signal.
  • the detectable moiety can be a radioisotope, such as 3 H, 14 C, 32 P, 35 S, 125 I, 99 Tc, 111 In, or 67 Ga; a fluorescent or chemiluminescent compound, such as fluorescein isothiocyanate, rhodamine, or luciferin; or an enzyme, such as alkaline phosphatase, ⁇ -galactosidase, or horseradish peroxidase.
  • binding proteins are also useful for in vivo imaging.
  • a binding protein labeled with a detectable moiety can be administered to an animal, e.g., into the bloodstream, and the presence and location of the labeled antibody in the host assayed.
  • the binding protein can be labeled with any moiety that is detectable in an animal, whether by nuclear magnetic resonance, radiology, or other detection means known in the art.
  • kits comprising a binding protein and other reagents useful for detecting target antigen levels in biological samples.
  • reagents can include a detectable label, blocking serum, positive and negative control samples, and detection reagents.
  • the kit comprises a composition comprising any binding protein, polynucleotide, vector, vector system, and/or host cell described herein.
  • the kit comprises a container and a label or package insert on or associated with the container. Suitable containers include, for example, bottles, vials, syringes, IV solution bags, etc.
  • the containers may be formed from a variety of materials such as glass or plastic.
  • the container holds a composition which is by itself or combined with another composition effective for treating, preventing and/or diagnosing a condition (e.g., HIV infection) and may have a sterile access port (for example the container may be an intravenous solution bag or a vial having a stopper pierceable by a hypodermic injection needle).
  • a condition e.g., HIV infection
  • the label or package insert indicates that the composition is used for preventing, diagnosing, and/or treating the condition of choice.
  • the article of manufacture or kit may further comprise a second (or third) container comprising a pharmaceutically-acceptable buffer, such as bacteriostatic water for injection (BWFI), phosphate-buffered saline, Ringer's solution and dextrose solution. It may further include other materials desirable from a commercial and user standpoint, including other buffers, diluents, filters, needles, and syringes.
  • BWFI bacteriostatic water for injection
  • Therapeutic or pharmaceutical compositions comprising binding proteins are within the scope of the disclosure.
  • Such therapeutic or pharmaceutical compositions can comprise a therapeutically effective amount of a binding protein, or binding protein-drug conjugate, in admixture with a pharmaceutically or physiologically acceptable formulation agent selected for suitability with the mode of administration.
  • Acceptable formulation materials are nontoxic to recipients at the dosages and concentrations employed.
  • the pharmaceutical composition can contain formulation materials for modifying, maintaining, or preserving, for example, the pH, osmolarity, viscosity, clarity, color, isotonicity, odor, sterility, stability, rate of dissolution or release, adsorption, or penetration of the composition.
  • Suitable formulation materials include, but are not limited to, amino acids (such as glycine, glutamine, asparagine, arginine, or lysine), antimicrobials, antioxidants (such as ascorbic acid, sodium sulfite, or sodium hydrogen-sulfite), buffers (such as borate, bicarbonate, Tris-HCl, citrates, phosphates, or other organic acids), bulking agents (such as mannitol or glycine), chelating agents (such as ethylenediamine tetraacetic acid (EDTA)), complexing agents (such as caffeine, polyvinylpyrrolidone, beta-cyclodextrin, or hydroxypropyl-beta-cyclodextrin), fillers, monosaccharides, disaccharides, and other carbohydrates (such as glucose, mannose, or dextrins), proteins (such as serum albumin, gelatin, or immunoglobulins), coloring, flavoring and diluting agents, emuls
  • compositions will be determined by a skilled artisan depending upon, for example, the intended route of administration, delivery format, and desired dosage. Such compositions can influence the physical state, stability, rate of in vivo release, and rate of in vivo clearance of the binding protein.
  • the primary vehicle or carrier in a pharmaceutical composition can be either aqueous or non-aqueous in nature.
  • a suitable vehicle or carrier for injection can be water, physiological saline solution, or artificial cerebrospinal fluid, possibly supplemented with other materials common in compositions for parenteral administration.
  • Neutral buffered saline or saline mixed with serum albumin are further exemplary vehicles.
  • Other exemplary pharmaceutical compositions comprise Tris buffer of about pH 7.0-8.5, or acetate buffer of about pH 4.0-5.5, which can further include sorbitol or a suitable substitute.
  • binding protein compositions can be prepared for storage by mixing the selected composition having the desired degree of purity with optional formulation agents in the form of a lyophilized cake or an aqueous solution. Further, the binding protein can be formulated as a lyophilizate using appropriate excipients such as sucrose.
  • compositions of the disclosure can be selected for parenteral delivery or subcutaneous.
  • the compositions can be selected for inhalation or for delivery through the digestive tract, such as orally.
  • the preparation of such pharmaceutically acceptable compositions is within the skill of the art.
  • the formulation components are present in concentrations that are acceptable to the site of administration.
  • buffers are used to maintain the composition at physiological pH or at a slightly lower pH, typically within a pH range of from about 5 to about 8.
  • the therapeutic compositions for use can be in the form of a pyrogen-free, parenterally acceptable, aqueous solution comprising the desired binding protein in a pharmaceutically acceptable vehicle.
  • a particularly suitable vehicle for parenteral injection is sterile distilled water in which a binding protein is formulated as a sterile, isotonic solution, properly preserved.
  • Yet another preparation can involve the formulation of the desired molecule with an agent, such as injectable microspheres, bio-erodible particles, polymeric compounds (such as polylactic acid or polyglycolic acid), beads, or liposomes, that provides for the controlled or sustained release of the product which can then be delivered via a depot injection.
  • Hyaluronic acid can also be used, and this can have the effect of promoting sustained duration in the circulation.
  • Other suitable means for the introduction of the desired molecule include implantable drug delivery devices.
  • a pharmaceutical composition can be formulated for inhalation.
  • a binding protein can be formulated as a dry powder for inhalation.
  • Binding protein inhalation solutions can also be formulated with a propellant for aerosol delivery.
  • solutions can be nebulized.
  • binding proteins that are administered in this fashion can be formulated with or without those carriers customarily used in the compounding of solid dosage forms such as tablets and capsules.
  • a capsule can be designed to release the active portion of the formulation at the point in the gastrointestinal tract where bioavailability is maximized and pre-systemic degradation is minimized.
  • Additional agents can be included to facilitate absorption of the binding protein. Diluents, flavorings, low melting point waxes, vegetable oils, lubricants, suspending agents, tablet disintegrating agents, and binders can also be employed.
  • Another pharmaceutical composition can involve an effective quantity of binding proteins in a mixture with non-toxic excipients that are suitable for the manufacture of tablets.
  • Suitable excipients include, but are not limited to, inert diluents, such as calcium carbonate, sodium carbonate or bicarbonate, lactose, or calcium phosphate; or binding agents, such as starch, gelatin, or acacia; or lubricating agents such as magnesium stearate, stearic acid, or talc.
  • compositions of the disclosure will be evident to those skilled in the art, including formulations involving binding proteins in sustained- or controlled-delivery formulations.
  • Techniques for formulating a variety of other sustained- or controlled-delivery means such as liposome carriers, bio-erodible microparticles or porous beads and depot injections, are also known to those skilled in the art.
  • Additional examples of sustained-release preparations include semipermeable polymer matrices in the form of shaped articles, e.g. films, or microcapsules.
  • Sustained release matrices can include polyesters, hydrogels, polylactides, copolymers of L-glutamic acid and gamma ethyl-L-glutamate, poly(2-hydroxyethyl-methacrylate), ethylene vinyl acetate, or poly-D( ⁇ )-3-hydroxybutyric acid.
  • Sustained-release compositions can also include liposomes, which can be prepared by any of several methods known in the art.
  • compositions to be used for in vivo administration typically must be sterile. This can be accomplished by filtration through sterile filtration membranes. Where the composition is lyophilized, sterilization using this method can be conducted either prior to, or following, lyophilization and reconstitution.
  • the composition for parenteral administration can be stored in lyophilized form or in a solution.
  • parenteral compositions generally are placed into a container having a sterile access port, for example, an intravenous solution bag or vial having a stopper pierceable by a hypodermic injection needle.
  • the pharmaceutical composition can be stored in sterile vials as a solution, suspension, gel, emulsion, solid, or as a dehydrated or lyophilized powder.
  • Such formulations can be stored either in a ready-to-use form or in a form (e.g., lyophilized) requiring reconstitution prior to administration.
  • kits for producing a single-dose administration unit can each contain both a first container having a dried protein and a second container having an aqueous formulation. Also included within the scope of this disclosure are kits containing single and multi-chambered pre-filled syringes (e.g., liquid syringes and lyosyringes).
  • the effective amount of a binding protein pharmaceutical composition to be employed therapeutically will depend, for example, upon the therapeutic context and objectives.
  • One skilled in the art will appreciate that the appropriate dosage levels for treatment will thus vary depending, in part, upon the molecule delivered, the indication for which the binding protein is being used, the route of administration, and the size (body weight, body surface, or organ size) and condition (the age and general health) of the patient. Accordingly, the clinician can titer the dosage and modify the route of administration to obtain the optimal therapeutic effect.
  • Dosing frequency will depend upon the pharmacokinetic parameters of the binding protein in the formulation being used. Typically, a clinician will administer the composition until a dosage is reached that achieves the desired effect.
  • the composition can therefore be administered as a single dose, as two or more doses (which may or may not contain the same amount of the desired molecule) over time, or as a continuous infusion via an implantation device or catheter. Further refinement of the appropriate dosage is routinely made by those of ordinary skill in the art and is within the ambit of tasks routinely performed by them. Appropriate dosages can be ascertained through use of appropriate dose-response data.
  • the route of administration of the pharmaceutical composition is in accord with known methods, e.g., orally; through injection by intravenous, intraperitoneal, intracerebral (intraparenchymal), intracerebroventricular, intramuscular, intraocular, intraarterial, intraportal, or intralesional routes; by sustained release systems; or by implantation devices.
  • the compositions can be administered by bolus injection or continuously by infusion, or by implantation device.
  • composition can also be administered locally via implantation of a membrane, sponge, or other appropriate material onto which the desired molecule has been absorbed or encapsulated.
  • a membrane, sponge, or other appropriate material onto which the desired molecule has been absorbed or encapsulated.
  • the device can be implanted into any suitable tissue or organ, and delivery of the desired molecule can be via diffusion, timed-release bolus, or continuous administration.
  • the pharmaceutical compositions can be used to prevent and/or treat HIV infection.
  • the pharmaceutical compositions can be used as a standalone therapy or in combination with standard anti-retroviral therapy.
  • the present disclosure relates to a method of preventing and/or treating HIV infection in a patient.
  • the method comprises administering to the patient a therapeutically effective amount of at least one of the binding proteins described herein.
  • the at least one binding protein is administered in combination with an anti-retroviral therapy (e.g., an anti-HIV therapy).
  • the at least one binding protein is administered before the anti-retroviral therapy.
  • the at least one binding protein is administered concurrently with the anti-retroviral therapy.
  • the at least one binding protein is administered after the anti-retroviral therapy.
  • the at least one binding protein is co-administered with any standard anti-retroviral therapy known in the art. In some embodiments, administration of the at least one binding protein results in neutralization of one or more HIV virions. In some embodiments, administration of the at least one binding protein results in elimination of one or more latently and/or chronically HIV-infected cells in the patient. In some embodiments, administration of the at least one binding protein results in neutralization of one or more HIV virions and results in elimination of one or more latently and/or chronically HIV-infected cells in the patient. In some embodiments, the patient is a human.
  • Item 1 A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • Item 2 A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is an immunoglobulin C H1 heavy chain constant domain
  • C H2 is an immunoglobulin C H2 heavy chain constant domain
  • C H3 is an immunoglobulin C H3 heavy chain constant domain
  • hinge is an immunoglobulin hinge region connecting the C H1 and C H2 domains
  • L 1 , L 2 , L 3 and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • Item 3 The binding protein of item 1 or item 2, wherein the one or more HIV target proteins is selected from the group consisting of glycoprotein 120, glycoprotein 41 and glycoprotein 60.
  • Item 4 The binding protein of item 1 or item 2, wherein the binding protein is trispecific and capable of specifically binding three different epitopes on a single HIV target protein.
  • Item 5 The binding protein of item 1 or item 2, wherein the binding protein is trispecific and capable of specifically binding two different epitopes on a first HIV target protein, and one epitope on a second HIV target protein, wherein the first and second HIV target proteins are different.
  • Item 6 The binding protein of item 1 or item 2, wherein the binding protein is trispecific and capable of specifically binding three different antigen targets.
  • Item 7 The binding protein of item 1 or item 2, wherein the binding protein is capable of inhibiting the function of one or more HIV target proteins.
  • Item 8 The binding protein of any one of items 1-7, wherein V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively;
  • Item 9 The binding protein of any one of items 1-7, wherein V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • Item 10 The binding protein of any one of items 1-9, wherein V L1 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • Item 11 The binding protein of any one of items 1-10, wherein V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively;
  • Item 12 The binding protein of any one of items 1-10, wherein V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • Item 13 The binding protein of any one of items 1-12, wherein V L2 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • Item 14 The binding protein of any one of items 1-13, wherein V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively;
  • Item 15 The binding protein of any one of items 1-13, wherein V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • Item 16 The binding protein of any one of items 1-15, wherein V L3 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
  • Item 18 The binding protein of any one of items 1-16, wherein V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • Item 19 The binding protein of any one of items 1-18, wherein V H1 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively, a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
  • Item 21 The binding protein of any one of items 1-19, wherein V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • Item 22 The binding protein of any one of items 1-21, wherein V H2 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • Item 23 The binding protein of any one of items 1-22, wherein V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
  • V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively;
  • Item 24 The binding protein of any one of items 1-22, wherein V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • Item 25 The binding protein of any one of items 1-24, wherein V H3 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • V L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274;
  • V L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277;
  • V L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 266, a CDR-L2 comprising the sequence of SEQ ID NO: 267, and a CDR-L3 comprising the sequence of SEQ ID NO: 268;
  • V H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 512
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506
  • V H3 comprises a CDR
  • V L1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518
  • V L2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519
  • V L3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 512
  • V H1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504
  • V H2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506
  • V H3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 502.
  • V L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274;
  • V L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277;
  • V L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271;
  • V H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506
  • V H3 comprises a C
  • V L1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518
  • V L2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519
  • V L3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513
  • V H1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504
  • V H2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506
  • V H3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
  • V L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277;
  • V L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274;
  • V L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271;
  • V H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 257, a CDR-H2 comprising the sequence of SEQ ID NO: 258, and
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504; and
  • V H3 comprises a C
  • Item 34 The binding protein of any one of items 1-25 and 32-33, wherein V L1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519; V L2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518; V L3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513; V H1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506; V H2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504; and V H3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
  • Item 35 The binding protein of item 1, wherein the second polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • Item 36 The binding protein of item 1, wherein the third polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • Item 37 The binding protein of item 1, wherein the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 38 The binding protein of item 1, wherein the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 39 The binding protein of any one of items 1, 37, and 38, wherein the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 40 The binding protein of item 2, wherein the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 41 The binding protein of item 2, wherein the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 42 The binding protein of any one of items 2, 40, and 41, wherein the C H3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 43 The binding protein of item 1 or item 2, wherein at least one of L 1 , L 2 , L 3 , or L 4 is independently 0 amino acids in length.
  • Item 44 The binding protein of item 1 or item 2, wherein L 1 , L 2 , L 3 , or L 4 are each independently at least one amino acid in length.
  • Item 45 The binding protein of any one of items 1-44, wherein L 1 comprises Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • Item 46 A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair; wherein:
  • V L1 , V L2 and V L3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283;
  • V H1 , V H2 , and V H3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or
  • V H1 , V H2 , and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
  • Item 47 A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • C H2 is an immunoglobulin C H2 heavy chain constant domain
  • C H3 is an immunoglobulin C H3 heavy chain constant domain
  • hinge is an immunoglobulin hinge region connecting the C H1 and C H2 domains
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair; wherein:
  • V L1 , V L2 and V L3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283;
  • V H1 , V H2 , and V H3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or
  • V H1 , V H2 , and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
  • Item 48 The binding protein of item 46, wherein the second polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • Item 49 The binding protein of item 46, wherein the third polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • Item 50 The binding protein of item 46, wherein the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 51 The binding protein of item 46, wherein the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 52 The binding protein of any one of items 46, 50, and 51, wherein the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 53 The binding protein of item 47, wherein the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 54 The binding protein of item 47, wherein the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 55 The binding protein of any one of items 47, 53, and 54, wherein the C H3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 56 The binding protein of item 46 or item 47, wherein at least one of L 1 , L 2 , L 3 or L 4 is independently 0 amino acids in length.
  • Item 57 The binding protein of item 46 or item 47, wherein L 1 , L 2 , L 3 or L 4 are each independently at least one amino acid in length.
  • Item 58 The binding protein of any one of items 46-57, wherein L 1 comprises Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • Item 59 A binding protein comprising a first polypeptide chain, a second polypeptide chain, a third polypeptide chain and a fourth polypeptide chain wherein:
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 4 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 4;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 3 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 3;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 1 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 1;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 2 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 2;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 12 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 12;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 11 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 11;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 9 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 9;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 10 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 10;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 20 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 20;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 19 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 19;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 17 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 17;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 18 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 18;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 28 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 28;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 27 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 27;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 25 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 25;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 26 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 26;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 36 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 36;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 35 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 35;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 33 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 33;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 34 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 34;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 44 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 44;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 43 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 43;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 41 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 41;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 42 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 42;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 52 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 52;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 51 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 51;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 49 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 49;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 50 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 50;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 60 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 60;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 59 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 59;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 57 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 57;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 58 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 58;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 68 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 68;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 67 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 67;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 65 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 65;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 66 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 66;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 76 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 76;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 75 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 75;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 73 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 73, and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 74 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 74;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 84 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 84;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 83 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 83;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 81 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 81;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 82 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 82;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 92 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:92;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 91 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 91;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 89 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 89;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 90 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 90;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 100 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 100;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 99 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 99;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 97 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 97;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 98 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 98;
  • the first polypeptide comprises the amino acid sequence of SEQ ID NO: 108 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 108;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 107 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 107;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 105 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 105;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 106 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 106;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 116 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 116;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 115 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 115;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 113 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 113;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 114 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 114;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 124 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 124;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 123 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 123;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 121 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 121;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 122 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 122;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 132 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 132;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 131 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 131;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 129 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 129;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 130 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 130;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 140 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 140;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 139 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 139;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 137 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 137;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 138 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 138;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 148 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 148;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 147 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 147;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 145 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 145;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 146 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 146;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 156 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 156;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 155 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 155;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 153 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 153;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 154 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 154;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 164 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 164;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 163 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 163;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 161 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 161;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 162 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 162;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 172 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 172;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 171 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 171;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 169 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 169;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 170 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 170;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 180 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 180;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 179 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 179;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 177 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 177;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 178 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 178;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 188 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 188;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 187 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 187;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 185 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 185;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 186 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 186;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 196 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 196;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 195 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 195;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 193 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 193;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 194 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 194;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 204 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 204;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 203 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 203;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 201 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 201;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 202 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 202;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 212 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 212;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 211 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 211;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 209 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 209;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 210 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 210;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 220 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 220;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 219 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 219;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 217 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 217;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 218 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 218;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 228 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 228;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 227 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 227;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 225 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 225;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 226 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 226;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 235 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 235;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 234 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 234;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 232 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 232;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 233 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 233; or
  • first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 243 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 243;
  • second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 242 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 242;
  • third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 240 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 240;
  • fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 241 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 241.
  • Item 60 A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins and one or more T cell target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • Item 61 A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins and one or more T cell target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • C H2 is an immunoglobulin C H2 heavy chain constant domain
  • C H3 is an immunoglobulin C H3 heavy chain constant domain
  • hinge is an immunoglobulin hinge region connecting the C H1 and C H2 domains
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • Item 62 The binding protein of item 60 or item 61, wherein the one or more HIV target proteins are selected from the group consisting of glycoprotein 120, glycoprotein 41 and glycoprotein 160.
  • Item 63 The binding protein of item 60 or item 61, wherein the one or more T cell target proteins are CD3 or CD28.
  • Item 64 The binding protein of item 60 or item 61, wherein the binding protein is trispecific and capable of specifically binding an HIV target protein and two different epitopes on a single T cell target protein.
  • Item 65 The binding protein of item 60 or item 61, wherein the binding protein is trispecific and capable of specifically binding an HIV target protein and two different T cell target proteins.
  • Item 66 The binding protein of item 60 or item 61, wherein the binding protein is trispecific and capable of specifically binding a T cell target protein and two different epitopes on a single HIV target protein.
  • Item 67 The binding protein of item 60 or item 61, wherein the binding protein is trispecific and capable of specifically binding a T cell target protein and two different HIV target proteins.
  • Item 68 The binding protein of item 60 or item 61, wherein the first and second polypeptide chains form two antigen binding sites that specifically target two T cell target proteins, and the third and fourth polypeptide chains form an antigen binding site that specifically binds an HIV target protein.
  • Item 69 The binding protein of any one of items 60-68, wherein V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496,
  • Item 70 The binding protein of any one of items 60-68, wherein V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 71 The binding protein of any one of items 60-70, wherein V L1 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 72 The binding protein of any one of items 60-71, wherein V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively
  • Item 73 The binding protein of any one of items 60-71, wherein V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 74 The binding protein of any one of items 60-73, wherein V L2 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 75 The binding protein of any one of items 60-74, wherein V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively
  • Item 76 The binding protein of any one of items 60-74, wherein V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 77 The binding protein of any one of items 60-76, wherein V L3 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 78 The binding protein of any one of items 60-77, wherein V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a
  • Item 79 The binding protein of any one of items 60-77, wherein V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • Item 80 The binding protein of any one of items 60-79, wherein V H1 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • Item 81 The binding protein of any one of items 60-80, wherein V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a
  • Item 82 The binding protein of any one of items 60-80, wherein V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • Item 83 The binding protein of any one of items 60-82, wherein V H2 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • Item 84 The binding protein of any one of items 60-83, wherein V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively, a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a
  • Item 85 The binding protein of any one of items 60-83, wherein V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • Item 86 The binding protein of any one of items 60-85, wherein V H3 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • V L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 488, a CDR-L2 comprising the sequence of SEQ ID NO: 489, and a CDR-L3 comprising the sequence of SEQ ID NO: 490;
  • V L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 494, a CDR-L2 comprising the sequence of SEQ ID NO: 495, and a CDR-L3 comprising the sequence of SEQ ID NO: 496;
  • V L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271;
  • V H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 479, a CDR-H2 comprising the sequence of SEQ ID NO:
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 522;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 524;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 509;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 511; and
  • V H3 comprises
  • V L1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 522;
  • V L2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 524;
  • V L3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513;
  • V H1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 509;
  • V H2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 511;
  • V H3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
  • V L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 494, a CDR-L2 comprising the sequence of SEQ ID NO: 495, and a CDR-L3 comprising the sequence of SEQ ID NO: 496;
  • V L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 488, a CDR-L2 comprising the sequence of SEQ ID NO: 489, and a CDR-L3 comprising the sequence of SEQ ID NO: 490;
  • V L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271;
  • V H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 485, a CDR-H2 comprising the sequence of SEQ ID NO: 486,
  • V L1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 524;
  • V L2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 522;
  • V L3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513;
  • V H1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 511;
  • V H2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 509; and
  • V H3 comprises
  • Item 92 The binding protein of any one of items 60-86 and 90-91, wherein V L1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 524; V L2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 522; V L3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513; V H1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 511; V H2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 509; and V H3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
  • Item 93 The binding protein of item 60, wherein the second polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • Item 94 The binding protein of item 60, wherein the third polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • Item 95 The binding protein of item 60, wherein the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 96 The binding protein of item 60, wherein the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 97 The binding protein of any one of items 60, 95, and 96, wherein the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 98 The binding protein of item 61, wherein the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 99 The binding protein of item 61, wherein the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 100 The binding protein of any one of items 61, 98, and 99, wherein the C H3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 101 The binding protein of item 60 or item 61, wherein at least one of L 1 , L 2 , L 3 , or L 4 is independently 0 amino acids in length.
  • Item 102 The binding protein of item 60 or item 61, wherein L 1 , L 2 , L 3 , or L 4 are each independently at least one amino acid in length.
  • Item 103 The binding protein of any one of items 60-102, wherein L 1 is Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
  • Item 104 A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair; wherein:
  • V L1 , V L2 and V L3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
  • V H1 , V H2 , and V H3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
  • V H1 , V H2 , and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • Item 105 A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:
  • a second polypeptide chain comprises a structure represented by the formula:
  • a third polypeptide chain comprises a structure represented by the formula:
  • polypeptide chain comprises a structure represented by the formula:
  • V L1 is a first immunoglobulin light chain variable domain
  • V L2 is a second immunoglobulin light chain variable domain
  • V L3 is a third immunoglobulin light chain variable domain
  • V H1 is a first immunoglobulin heavy chain variable domain
  • V H2 is a second immunoglobulin heavy chain variable domain
  • V H3 is a third immunoglobulin heavy chain variable domain
  • C L is an immunoglobulin light chain constant domain
  • C H1 is the immunoglobulin C H1 heavy chain constant domain
  • C H2 is an immunoglobulin C H2 heavy chain constant domain
  • C H3 is an immunoglobulin C H3 heavy chain constant domain
  • hinge is an immunoglobulin hinge region connecting the C H1 and C H2 domains
  • L 1 , L 2 , L 3 , and L 4 are amino acid linkers; wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair; wherein:
  • V L1 , V L2 and V L3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
  • V L1 , V L2 and V L3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
  • V H1 , V H2 , and V H3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
  • V H1 , V H2 , and V H3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • Item 106 The binding protein of item 104, wherein the second polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • Item 107 The binding protein of item 104, wherein the third polypeptide chain further comprises an Fc region linked to C H1 , the Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains.
  • Item 108 The binding protein of item 104, wherein the second polypeptide chain further comprises a first Fc region linked to C H t, the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 109 The binding protein of item 104, wherein the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 110 The binding protein of any one of items 104, 108, and 109, wherein the second polypeptide chain further comprises a first Fc region linked to C H1 , the first Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to C H1 , the second Fc region comprising an immunoglobulin hinge region and C H2 and C H3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 111 The binding protein of item 105, wherein the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 112 The binding protein of item 105, wherein the C H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the C H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 113 The binding protein of any one of items 105, 111, and 112, wherein the C H3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 114 The binding protein of item 104 or item 105, wherein at least one of L 1 , L 2 , L 3 , or L 4 is independently 0 amino acids in length.
  • Item 115 The binding protein of item 104 or item 105, wherein L 1 , L 2 , L 3 , or L 4 are each independently at least one amino acid in length.
  • Item 116 The binding protein of any one of items 104-115, wherein L 1 is Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
  • Item 117 A binding protein comprising a first polypeptide chain, a second polypeptide chain, a third polypeptide chain and a fourth polypeptide chain wherein:
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 305 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 305;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 304 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 304;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 302 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 302;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 303 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 303;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 313 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 313;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 312 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 312;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 310 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 310;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 311 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 311;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 321 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 321;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 320 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 320;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 318 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 318;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 319 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 319;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 329 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 329;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 328 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 328;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 326 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 326;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 327 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 327;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 337 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 337;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 336 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 336;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 334 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 334;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 335 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 335;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 345 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 345;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 344 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 344;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 342 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 342;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 343 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 343;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 353 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 353;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 352 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:352;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 350 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 350;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 351 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 351;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 361 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 361;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 360 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 360;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 358 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 358;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 359 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 359;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 369 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 369;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 368 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 368;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 366 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 366;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 367 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 367;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 377 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 377;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 376 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 376;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 374 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 374;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 375 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 375;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 385 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 385;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 384 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 384;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 382 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 382;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 383 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 383;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 393 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 393;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 392 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 392;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 390 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 390;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 391 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 391;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 401 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 401;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 400 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 400;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 398 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 398;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 399 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 399;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 409 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 409;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 408 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 408;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 406 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 406;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 407 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 407;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 417 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 417;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 416 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 416;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 414 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 414;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 415 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 415;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 425 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 425;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 424 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 424;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 422 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 422;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 423 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 423;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 433 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:433;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 432 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 432;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 430 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 430;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 431 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 431;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 441 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 441;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 440 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 440;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 438 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 438;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 439 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 439;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 449 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 449;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 448 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 448;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 446 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 446;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 447 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 447;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 457 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 457;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 456 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 456;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 454 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 454;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 455 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 455;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 465 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 465;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 464 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 464;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 462 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 462;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 463 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 463;
  • the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 473 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 473;
  • the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 472 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 472;
  • the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 470 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 470;
  • the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 471 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 471.
  • Item 118 An isolated nucleic acid molecule comprising a nucleotide sequence encoding the binding protein of any one of items 1-117.
  • Item 119 An expression vector comprising the nucleic acid molecule of item 118.
  • Item 120 An isolated host cell comprising the nucleic acid molecule of item 118.
  • Item 121 An isolated host cell comprising the expression vector of item 119.
  • Item 122 The isolated host cell of item 120 or item 121, wherein the host cell is a mammalian cell or an insect cell.
  • Item 123 A vector system comprising one or more vectors encoding a first, second, third, and fourth polypeptide chain of a binding protein of any one of items 1-117.
  • Item 124 The vector system of item 123, wherein the vector system comprises a first vector encoding the first polypeptide chain of the binding protein, a second vector encoding the second polypeptide chain of the binding protein, a third vector encoding the third polypeptide chain of the binding protein, and a fourth vector encoding the fourth polypeptide chain of the binding protein.
  • Item 125 The vector system of item 123, wherein the vector system comprises a first vector encoding the first and second polypeptide chains of the binding protein, and a second vector encoding the third and fourth polypeptide chains of the binding protein.
  • Item 126 The vector system of any one of items 123-125, wherein the one or more vectors are expression vectors.
  • Item 127 An isolated host cell comprising the vector system of any one of items 123-126.
  • Item 128 The isolated host cell of item 127, wherein the host cell is a mammalian cell or an insect cell.
  • Item 129 A method of producing a binding protein, the method comprising:
  • Item 130 A method of preventing and/or treating HIV infection in a patient comprising administering to the patient a therapeutically effective amount of at least one binding protein of any one of items 1-117.
  • Item 131 The method of item 130, wherein the binding protein is co-administered with standard anti-retroviral therapy.
  • Item 132 The method of item 130 or item 131, wherein administration of the at least one binding protein results in the neutralization of one or more HIV virions.
  • Item 133 The method of any one of items 130-132, wherein administration of the at least one binding protein results in the elimination of one or more latently and/or chronically HIV-infected cells in the patient.
  • Item 134 The method of any one of items 130-133, wherein the patient is a human.
  • Item 135 The binding protein of any one of items 1-117 for the prevention or treatment of an HIV infection in a patient.
  • Item 136 The binding protein of item 135, wherein the binding protein is co-administered with standard anti-retroviral therapy.
  • Item 137 The binding protein of item 135 or item 136, wherein the binding protein causes the neutralization of one or more HIV virions in the patient.
  • Item 138 The binding protein of any one of items 135-137, wherein the binding protein causes the elimination of one or more latently and/or chronically HIV-infected cells in the patient.
  • Item 139 The binding protein of any one of items 135-138, wherein the patient is a human.
  • the HIV-1 envelope glycoprotein (Env/gp160) is located on the surface of the virus particle, and is composed of a homo-trimer comprising three non-covalently-linked transmembrane gp41 and gp120 complexes.
  • Env enables viral entry into target cells by the binding of gp120 to HIV's main receptor (CD4) and co-receptor (CCR5 or CXCR4), followed by the induction of viral/cellular membrane fusion facilitated by conformational changes in gp41, resulting in entry of the viral capsid and delivery of the viral genome into the host cell. Additionally, Env is expressed on the surface of infected cells.
  • Env acts as the only target for neutralizing antibodies on the HIV-1 virion. Binding of neutralizing antibodies to viral Env inhibits viral attachment/entry. Moreover, binding of neutralizing antibodies to HIV-1 infected, Env expressing cells leads to their destruction by Antibody-Dependent Cell-Mediated Cytotoxicity (ADCC) and Complement Dependent Cytotoxicity (CDC), resulting in reduction of the latent viral reservoir. Thus, neutralizing antibodies targeting Env are an attractive area for anti-viral therapy development. However, because of the high sequence diversity and mutation rate of the HIV-1 virus, developing neutralizing antibodies targeting Env has proven challenging due to the high likelihood that a given HIV-1 strain either lacks the epitope of any given neutralizing antibody, or the strain has evolved a mutation to become resistant to the antibody.
  • ADCC Antibody-Dependent Cell-Mediated Cytotoxicity
  • CDC Complement Dependent Cytotoxicity
  • the vectors expressing the trispecific binding proteins were constructed by inserting the designed heavy and light chain genes into a mammalian expression vector. Corresponding heavy and light chain pairing occurred spontaneously, and heterodimer formation was promoted by Knob-in-Hole mutations engineered in the Fc region.
  • Binding proteins were produced in Expi293 cells by cotransfection of four expression plasmids (Life Technologies, Expi293TM Expression System Kit, Cat. No. A14635). Binding proteins were purified using a two-step purification scheme. First, binding proteins were captured on protein A affinity chromatography resin, washed, and then eluted in glycine at pH 3.0. The eluted proteins were then dialyzed in PBS, concentrated, and filtered. The filtered antibodies were further purified using a Superdex 200 SEC column to obtain monomeric binding proteins.
  • Binding affinities of anti-HIV trispecific binding proteins were measured by surface plasmon resonance (SPR) using a Biacore3000 instrument (GE Healthcare).
  • the assay buffer used was HBS-EP (GE Healthcare).
  • the affinity of the indicated proteins for the MPER binding site on the HIV-1 protein gp41 was measured by surface plasmon resonance (SPR) analysis using a Biacore Instrument as follows: binding proteins were first captured on a CM5 chip coupled with anti-human Fc antibody, followed by flow through of varying concentrations (100 nM-6.25 nM) of the MPER binding peptide (Acetyl-RRRNEQELLELDKWASLWNWFDITNWLWYIRRR-Ttds-Lys-(Biotin)-NH 2 ) (SEQ ID NO: 284) at 30 ⁇ L per minute, and binding was detected by measurement of association for 240 seconds, and dissociation for 300 seconds on a Biacore 3000 at 25° C.
  • SPR surface plasmon resonance
  • HBS-EP buffer was used for sample dilution, as well as running buffer. Regeneration of the chip was done with 3 M MgCl 2 at 30 ⁇ L per minute.
  • BIAevaluation software v.4.1 (GE Healthcare) was used. Data were fit globally using a 1:1 Langmuir model with mass transfer. After software-based curve fitting, the ON and OFF reates at each concentration of MPER binding peptide was calculated and used to obtain a binding affinity for each binding protein.
  • the affinity of the indicated proteins for the CD4BS binding site on the HIV-1 protein gp120 was measured by SPR as follows: recombinant HIV-1 gp120 (Thr27-Arg498) protein (HIV-1/Clade B/C (CN54), ARCO Biosystems (Cat. # GP4-V15227)) was captured on a CM5 chip, followed by flow through of varying concentrations (100 nM-6.25 nM) of the binding proteins, and binding was detected by measurement of association for 240 seconds, and dissociation for 300 seconds on a Biacore 3000 at 25° C. HBS-EP buffer was used for sample dilution, as well as running buffer.
  • Regeneration of the chip was done with 3 M MgCl 2 at 30 ⁇ L per minute.
  • the BIAevaluation software v.4.1 (GE Healthcare) was used. Data were fit globally using a 1:1 Langmuir model with mass transfer. After software-based curve fitting, the ON and OFF reates at each concentration of Binding Protein was calculated and used to obtain a binding affinity for each binding protein.
  • Conformational stability of the trispecific binding proteins was assessed by determining the melting point T m and aggregation onset temperature (T agg ).
  • T m and aggregation onset temperature (T agg ) were also measured by static light scattering (SLS) using a Unit instrument (Unchained Labs). 9 ⁇ L of each sample was loaded undiluted into a multicuvette array. The samples were then heated from 20° C. to 95° C. at a heating rate of 0.3° C./minute. The barycentric mean (BCM) of the tryptophan fluorescence spectra was used to measure the protein melting curve, and determine the T m values. The 266 nm static light scattering (SLS) signal was used to measure the aggregation curve and determine the T agg . Data analysis was performed using the Unit analysis software v2.1.
  • a novel strategy was developed for improving neutralizing antibody efficacy against HIV-1, while concomitantly limiting the likelihood of viral breakthrough due to high sequence diversity and/or viral mutation.
  • This strategy involved the generation of trispecific binding proteins comprising four polypeptides that formed three antigen binding sites that specifically bind three different epitopes on the HIV Env glycoprotein ( FIG. 1 ). Each antigen binding site comprised the V H and V L domain from a different HIV-1 neutralizing antibody that targeted a distinct epitope on the Env glycoprotein.
  • the trispecific binding proteins contained a first pair of polypeptides that possessed dual variable domains having a cross-over orientation forming two distinct antigen binding sites (called the CODV Ig format), and a second pair of polypeptides, each with a single variable domain that formed a third antigen binding site ( FIGS. 1A and 1B ).
  • the first pair of polypeptides (that possessed the dual variable domains) comprised a first polypeptide having the structure V L2 -Linker-V L1 -Linker-Immunoglobulin light chain constant domain, and a second polypeptide having the structure V H1 -Linker-V H2 -Linker-Immunoglobulin C H1 , hinge, C H2 , and C H3 heavy chain constant domains, resulting in a pair of polypeptides which had a cross over orientation that formed two distinct antigen binding sites: V H1 -V L1 and V H2 -V L2 ( FIGS. 1C and 1D , see light and heavy chains B).
  • the second pair of polypeptides (that each possessed a single variable domain) comprised a first polypeptide having the structure V H3 -Immunoglobulin C H1 , hinge, C H2 , and C H3 heavy chain constant domains, and a second polypeptide having the structure V L3 -Immunoglobulin light chain constant domain, resulting in a pair of polypeptides that formed a third antigen binding site: V H3 -V L3 ( FIGS. 1C and 1D , see light and heavy chains A).
  • the trispecific binding proteins were constructed to include an LS mutation.
  • the trispecific binding proteins were constructed such that within one binding protein, one C H3 domain included a knob mutation and the other C H3 domain included a hole mutation to facilitate heterodimerization of the heavy chains ( FIG. 1 ).
  • Three trispecific binding proteins (Binding Proteins 2, 3, and 24) were generated. These trispecific binding proteins were created by grafting onto a trispecific binding protein framework the V H and V L domains isolated from antibodies targeting three distinct epitopes on the HIV-1 Env glycoprotein: MPER Ab (targeting the MPER epitope on gp41), CD4BS Ab “b” (targeting the CD4 Binding Site on gp120), and V1/V2 directed Ab “a” (targeting the V1/V2 domain on gp120).
  • MPER Ab targeting the MPER epitope on gp41
  • CD4BS Ab “b” targeting the CD4 Binding Site on gp120
  • V1/V2 directed Ab “a” targeting the V1/V2 domain on gp120.
  • the three trispecific binding proteins, as well as their parental antibodies, were purified over protein A affinity resin ( FIGS. 2A and 3A ) followed by size exclusion chromatography ( FIGS. 2B and 3B ) to obtain monomeric proteins suitable for further characterization. All three trispecific binding proteins were stable and formed monomers at high frequency.
  • bispecific binding proteins were designed based upon the above described CODV Ig format (See WO 2012/135345), using two different V H and V L domains from the same parental antibodies used to create the trispecific binding proteins.
  • the bispecific binding proteins with these specific variable domains did not purify well as monomers, showing significantly increased aggregate formation when compared to the corresponding trispecific binding proteins ( FIGS. 4A and 4B ).
  • the binding affinity of the purified trispecific binding proteins was measured for the HIV-1 Env glycoprotein epitopes on gp41 and gp120.
  • the binding affinity for gp41 was measured for the three trispecific binding proteins, as well as the parental MPER antibody, by Biacore assay using the MPER binding peptide ( FIG. 5 ).
  • the binding affinity for the MPER antibody was calculated to be 18.7 nM.
  • the three trispecific binding proteins all had a higher affinity for the MPER binding peptide than did the parental antibody (Table 3), with Binding Protein 2 having an approximately 3.1 fold higher affinity than the MPER antibody (6.05 nM vs. 18.7 nM, respectively).
  • the binding affinity for the CD4 Binding Site on gp120 was measured for the three trispecific binding proteins, as well as the parental CD4BS antibody, by Biacore assay ( FIG. 6 ).
  • the three trispecific binding proteins all had a similar affinity for the CD4 Binding Site when compared to the parental antibody (Table 4).
  • the trispecific binding proteins were able to bind both of the tested target epitopes on the HIV-1 Env glycoprotein (Table 5). Moreover, all three trispecific binding proteins bound the target epitopes with affinities approximately equal to or exceeding those of their parental antibodies. Binding affinity of the V1/V2 directed Ab “a”, as well as of the V1/V2 directed Ab “a” binding sites within the three trispecific binding proteins 2, 3, and 24 could not be determined by Biacore analysis because this required a specific gp120 protein antigen which was unavailable.
  • Neutralization assays were performed using the TZM-b1 assay which measures neutralization as a function of reductions in HIV-1 Tat-regulated firefly luciferase (Luc) reporter gene expression after a single round of infection with Env-pseudotyped viruses.
  • the assays were performed as described in Marcella Sarzotti-Kelsoe et al., J. Immunological Methods, 409:131-146 (2014).
  • the neutralization results of various antibodies are shown in Tables 8-10.
  • Assay stocks of Env-pseudotyped viruses were produced in 293T/17 cells by co-transfection with two plasmids: an Env expression plasmid and a plasmid expressing the entire HIV-1 genome except for Env. Co-transfection of these plasmids produced infectious pseudovirus particles which were capable of delivering the Tat gene into target cells, but infections with these pseudovirions could not themselves produce infectious viral progeny.
  • TZM-b1 cells also known as JC53BL-13 cells
  • TZM-b1 cells were engineered to express CD4 and CCR5, and to contain integrated reporter genes for firefly luciferase and E. coli ⁇ -galactosidase under the control of an HIV long-terminal repeat.
  • Reporter gene expression was induced in trans by viral Tat protein (delivered by the pseudotyped viruses) soon after single cycle infection. Luciferase activity was quantified as relative luminescence units (RLU), and was directly proportional to the number of infectious virus particles present in the initial inoculum over a wide range of values. Neutralization was measured as a function of decreased Tat-regulated Firefly luciferase (Luc) reporter gene expression after administration of varying concentrations of the indicated binding proteins. Neutralization titers were identified as the protein dilution at which RLUs were reduced by 80% compared to virus control wells after subtraction of background RLUs. The assay was performed in 96-well plates for high throughput capacity, and well-characterized reference strains were utilized for uniformity across studies.
  • RLU relative luminescence units
  • 21 additional trispecific binding proteins targeting three distinct HIV-1 Env glycoprotein epitopes were generated and purified as described in Example 1. These 21 additional trispecific binding proteins (Binding Proteins 1 and 4-23) were created by grafting onto a trispecific binding protein framework the V H and V L domains isolated from antibodies targeting distinct HIV-1 epitopes on the HIV-1 Env glycoprotein: the anti-MPER antibodies MPER Ab “a” and MPER Ab “b” (targeting the MPER epitope on gp41), the anti-CD4BS antibodies CD4BS Ab “a” and CD4BS Ab “b” (targeting the CD4 Binding Site on gp120), the anti-V1/V2 antibodies V1/V2 directed Ab “a” and V1/V2 directed Ab “b” (targeting the V1/V2 domain on gp120), and the anti-V3 antibody V3 directed Ab (targeting the V3 loop on gp120) (Table 7).
  • the anti-MPER antibodies MPER Ab “a” and MPER Ab “b” targeting
  • IC 80 measurements from viral neutralization assay Parental Antibody: V1/V2 V3 Binding Protein: MPER directed directed CD4BS CD4BS 15 1 2 19 20 3 Ab Ab “a” Ab Ab “b” Ab “a” # Viruses 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 208 Total VS Neutralized: IC 80 ⁇ 50 ⁇ g/mL 190 202 206 198 206 206 203 151 113 202 183 IC 80 ⁇ 10 ⁇ g/mL 180 199 206 180 206 206 193 149 109 200 175 IC 80 ⁇ 1.0 ⁇ g/mL 166 169 191 145 188 186 61 133 98 184 108 IC 80 ⁇ 0.1 ⁇ g/mL 122 109 136 80 144 123 10 99 72 79 10 IC 80
  • PK pharmacokinetics
  • Env is expressed on the surface of HIV-infected cells. Because of this, Env can act as an antibody target to identify infected cells, and induce Antibody-Dependent Cell-Mediated Cytotoxicity (ADCC) and Complement Dependent Cytotoxicity (CDC), resulting in reduction of the latent viral reservoir.
  • ADCC Antibody-Dependent Cell-Mediated Cytotoxicity
  • CDC Complement Dependent Cytotoxicity
  • T cell engagers novel trispecific binding proteins that contain three antigen binding sites targeting three different antigens (HIV-1 Env glycoprotein, CD3, and CD28). These novel proteins not only include antigen binding sites from neutralizing antibodies, but also the ability to bind effector T cells, bringing them into close proximity to infected target cells, thus inducing HIV-infected cell lysis.
  • the binding properties of the T-cell engagers was measured by ELISA assay using a horse radish peroxidase-conjugated anti-Fab probe to detect T-cell engager binding to the surface of ELISA plates coated with CD3, CD28, or Resurfaced Stabilized Core 3 (RSC3) protein of gp120.
  • Human CD3ge-hIgG4 (KIH) (Cat. No: 03-01-0051) from Cambridge Biologics, MA, USA; Human CD28-hIgG4 (Cat. No: 03-01-0303) from Cambridge Biologics, MA, USA.
  • CD4 and CD8 T cell activation were measured as follows: peripheral blood mononuclear cells (PBMCs) were enriched from buffy coats obtained from na ⁇ ve donors (NIH blood bank) using magnetic beads (Miltenyi Biotec). These cells were co-cultured for 14-16 hours with either uninfected or HIV-1 infected CEM cells in the presence of increasing concentrations of the binding proteins (0.01-1.0 ⁇ g/mL) with brefeldin A.
  • PBMCs peripheral blood mononuclear cells
  • NIH blood bank na ⁇ ve donors
  • magnetic beads Magnetic beads
  • the cells were then stained for surface expression of T-cell markers (CD3, CD4, and CD8) and activation markers (CD25 and CD69), followed by intracellular staining for cytokines (IFN- ⁇ , TNF- ⁇ , and IL-2) using fluorescently conjugated antibodies (BD Biosciences, eBiosciences, Biolegend).
  • cytokines IFN- ⁇ , TNF- ⁇ , and IL-2
  • fluorescently conjugated antibodies BD Biosciences, eBiosciences, Biolegend.
  • the number of CD4 and CD8 T cells expressing each cytokine or activation marker was determined by running the samples on an LSRII flow cytometer and analyzing the data with Flowjo software (Treeestar).
  • CD3 downregulation after T cell activation by the T-cell engagers was measured by staining activated PBMCs with non-competing mouse anti-human CD3 antibody and quantitated using flow cytometry.
  • Cytotoxicity of the T-cell engagers to CEM-BaL, ACH2, and J1.1 cells was monitored by flow cytometry as follows: latent cell lines (ACH2, J1.1, OM10) were obtained from the NIH AIDS Reagent Program. The activation of these cells was performed by culturing the cells in the presence or absence of TNF- ⁇ (10 ng/mL) for 14-16 hours. Activation was measured by determining the expression of cell surface HIV envelope glycoprotein by flow cytometry using an allophycocyanin-conjugated anti-HIV Env antibody (2G12).
  • the CEM-IIIb, ACH2, J1.1 and OM10 cells were labeled with the membrane dye PKH-26 (Sigma) and used as target cells in a cytotoxicity assay. These labeled target cells were co-cultured for 14-16 hours at an E:T ratio of 10:1 with enriched human T cells as effector cells in the presence of increasing amounts of the binding proteins. The extent of cell lysis in the target cells was determined by staining with a live/dead cell marker (Life technologies) and measuring the number of dead cells in the labeled target cell population by running the samples on an LSRII flow cytometer followed by analysis using Flowjo software (Treestar).
  • T cell engagers were constructed which contained two antigen binding sites targeting two different T cell surface receptors (CD3 and CD28), and a third antigen binding site targeting the HIV-1 Env glycoprotein ( FIGS. 8A and 8B ).
  • the T cell engagers were constructed to include an LS mutation.
  • the T cell engagers were constructed such that within one binding protein, one C H3 domain included a knob mutation and the other C H3 domain included a hole mutation to facilitate heterodimerization of the heavy chains ( FIGS. 8A and 8B ).
  • T cell engagers Two T cell engagers were constructed which targeted both T cell surface proteins and the HIV-1 Env glycoprotein (Binding Protein 32 and CD3 ⁇ CD28/CD4BS “b” Ab). These two T cell engagers were created by grafting onto a trispecific binding protein framework the V H and V L domains isolated from parental antibodies targeting the T cell surface proteins CD3 and CD28, and the anti-HIV-1 antibody CD4BS Ab “b” (targeting the CD4 Binding Site on gp120).
  • the CD3 ⁇ CD28/CD4BS “b” Ab trispecific binding protein was constructed such that the first pair of polypeptides (which formed two antigen binding sites) targeted the T cell surface receptors CD3 and CD28, and the second pair of polypeptides (which formed the single antigen binding site) targeted the HIV-1 antigen CD4BS (Table 11).
  • the ability of the two T cell engagers to bind to each of their three target antigens was tested by ELISA assay.
  • the T cell engagers were capable of binding both the CD3 and CD28 T cell surface proteins with the CD3 and CD28 antigen binding sites in either orientation in the bispecific arms of the T cell engagers (i.e., CD3 ⁇ CD28 for CD3 ⁇ CD28/CD4BS Ab “b” or CD28 ⁇ CD3 for Binding Protein 32). Both T cell engagers were also capable of binding to gp120 (as measured using the HIV-1 RSC3 protein, a gp120 variant lacking the V1, V2, and V3 variable regions) ( FIG. 9 ).
  • T cell activity was next tested for both of the T cell engagers.
  • Incubation of the T cell engagers with monocytes revealed that the T cell engagers induced robust CD8 + T cell activation ( FIG. 10 ).
  • the T cell engagers were capable of inducing significant CD4 + T cell activation on PBMCs alone, or PBMCs incubated with either of the HIV-1 infected T cell lines CEM-NKr cells or CEM-BaL cells ( FIG. 11 ).
  • both of the T cell engagers reduced cell surface expression of CD3 on activated T cells ( FIG. 12 ).
  • the T cell engagers (and positive and negative control bispecific binding proteins targeting CD3 and an HIV antigen) were incubated with the HIV-1 infected T cell line CEM-BaL cells. Incubation of the T cell engagers with the infected cells induced robust cell lysis over a wide range of concentrations ( FIG. 13A ). Likewise, incubation of these T cell engagers induced lysis of the latently infected T cell line ACH2 cells ( FIG. 13B ), as well as J1.1 cells ( FIG. 13C ). Surprisingly, the T cell engagers showed comparable or better cytotoxic activity against chronic and latent HIV-infected cell lines when compared to the bispecific binding proteins.
  • the novel T cell engagers described herein retained the ability from their parental antibodies to bind their target antigens on the HIV-1 Env glycoprotein gp120 on HIV-infected cells, as well as the cell-surface exposed T cell proteins CD3 and CD28.
  • the T cell engagers induced robust CD4 + and CD8 + T cell activation, and diminished CD3 surface expression.
  • these T cell engagers induced significant lysis of HIV-1 infected T cells. Without wishing to be bound by theory, these T cell engagers may provide a novel strategy for anti-viral therapeutics by reducing/eliminating the latent viral reservoir through T cell engagement in HIV/AIDS patients.
  • binding proteins Heavy and light chain sequences of binding proteins. CDR sequences are bolded and italicized.
  • GNTLKTYD ISHEGDKK cakgskhrlrdyalyddd hslihgdrnny las cmqgrespwtf ′′a′′ (SEQ ID NO: 257) (SEQ ID NO: 258) galnwavdvdylsnlefw (SEQ ID NO: 275) (SEQ ID NO: 276) (SEQ ID NO: 277) (SEQ ID NO: 259) V3 dir.

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Abstract

Provided herein are compositions comprising trispecific and/or trivalent binding proteins comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins or one or more T-cell receptors, where in a first pair of polypeptides forming the binding protein possess dual variable domains having a cross-over orientation and wherein a second pair of polypeptides forming the binding protein possess a single variable domain. Also provided herein are methods for making trispecific and/or trivalent binding proteins and uses of such binding proteins for the treatment and/or prevention of HIV/AIDS.

Description

    CROSS REFERENCES TO RELATED APPLICATIONS
  • This application claims the priority benefit of U.S. Provisional Application Ser. No. 62/246,113, filed Oct. 25, 2015, EP Application No. EP16305211.1, filed Feb. 24, 2016, U.S. Provisional Application Ser. No. 62/322,029, filed Apr. 13, 2016, and U.S. Provisional Application Ser. No. 62/331,169, filed May 3, 2016, which are incorporated herein by reference in their entirety.
  • This invention was created in the performance of a Cooperative Research and Development Agreement (NIAID #2014-0038) with the National Institutes of Health, an agency of the Department of Health and Human Services. The Government of the United States has certain rights in this invention.
  • SUBMISSION OF SEQUENCE LISTING ON ASCII TEXT FILE
  • The content of the following submission on ASCII text file is incorporated herein by reference in its entirety: a computer readable form (CRF) of the Sequence Listing (file name: 183952027041SEQLIST.txt, date recorded: Oct. 19, 2016, size: 1,064 KB).
  • FIELD OF THE INVENTION
  • The disclosure relates to trispecific and/or trivalent binding proteins comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first pair of polypeptides forming the binding protein possess dual variable domains having a cross-over orientation and wherein a second pair of polypeptides forming the binding protein possess a single variable domain. The disclosure also relates to methods for making trispecific and/or trivalent binding proteins and uses of such binding proteins for treating and/or preventing HIV/AIDS.
  • BACKGROUND
  • One of the challenges in treating HIV/AIDS with neutralizing antibodies is potential breakthrough infection due to the high mutation rate of HIV-1 viruses. Additionally, virological events in the early weeks following HIV-1 transmission set the stage for lifelong chronic infection that remains incurable with currently available combination antiretroviral therapy (cART). This is due, at least in part, to the early establishment of viral reservoirs, including latently infected cells, which persist despite cART, leading to recrudescent infection when treatment is interrupted. Newly discovered anti-HIV-1 neutralizing antibodies with improved breadth and potency may provide more options for HIV/AIDS treatment and prevention; however, breakthrough infection remains a major issue in the field.
  • BRIEF SUMMARY
  • In one embodiment, the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I];
  • a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II];
  • a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1  [III];
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV];
  • wherein
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is an immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3, and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • In some embodiments, the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains. In some embodiments, the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • In one embodiment, the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I];
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-hinge-CH2-CH3  [II];
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3  [III];
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV];
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is an immunoglobulin CH1 heavy chain constant domain;
    CH2 is an immunoglobulin CH2 heavy chain constant domain;
    CH3 is an immunoglobulin CH3 heavy chain constant domain;
    hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
    L1, L2, L3 and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • In some embodiments, the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V. In some embodiments, the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W. In some embodiments, the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • In some embodiments, the one or more HIV target protein is selected from the group consisting of glycoprotein 120, glycoprotein 41 and glycoprotein 160. In some embodiments, the binding protein is trispecific and capable of specifically binding three different epitopes on a single HIV target protein. In some embodiments, the binding protein is trispecific and capable of specifically binding two different epitopes on a first HIV target protein, and one epitope on a second HIV target protein, wherein the first and second HIV target proteins are different. In some embodiments, the binding protein is trispecific and capable of specifically binding three different antigen targets. In some embodiments, the binding protein is capable of inhibiting the function of one or more HIV target proteins. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521. In some embodiments, VL1 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521. In some embodiments, VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively, a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively, or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively. In some embodiments, VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521. In some embodiments, VL2 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521. In some embodiments, VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively. In some embodiments, VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521. In some embodiments, VL3 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521. In some embodiments, VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively. In some embodiments, VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508. In some embodiments, VH1 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508. In some embodiments, VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively. In some embodiments, VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508. In some embodiments, VH2 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508. In some embodiments, VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively. In some embodiments, VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508. In some embodiments, VH3 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508. In some embodiments, VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 266, a CDR-L2 comprising the sequence of SEQ ID NO: 267, and a CDR-L3 comprising the sequence of SEQ ID NO: 268; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a CDR-H3 comprising the sequence of SEQ ID NO: 256; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 257, a CDR-H2 comprising the sequence of SEQ ID NO: 258, and a CDR-H3 comprising the sequence of SEQ ID NO: 259; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 248, a CDR-H2 comprising the sequence of SEQ ID NO: 497, and a CDR-H3 comprising the sequence of SEQ ID NO: 250. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 512; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506; and V H3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 502. In some embodiments, VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 512; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506; and V H3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 502. In some embodiments, VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a CDR-H3 comprising the sequence of SEQ ID NO: 256; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 257, a CDR-H2 comprising the sequence of SEQ ID NO: 258, and a CDR-H3 comprising the sequence of SEQ ID NO: 259; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503. In some embodiments, VLJ comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513, VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503. In some embodiments, VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 257, a CDR-H2 comprising the sequence of SEQ ID NO: 258, and a CDR-H3 comprising the sequence of SEQ ID NO: 259; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a CDR-H3 comprising the sequence of SEQ ID NO: 256; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503. In some embodiments, VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503. In some embodiments, at least one of L1, L2, L3, or L4 is independently 0 amino acids in length. In some embodiments, L1, L2, L3, or L4 are each independently at least one amino acid in length. In some embodiments, L1 comprises Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • In one embodiment, the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3, and L4 are amino acid linkers;
    wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
    wherein:
  • (a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
  • (b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283; and
  • wherein:
  • (a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or
  • (b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
  • In some embodiments, the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains. In some embodiments, the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • In one embodiment, the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain;
    CH2 is an immunoglobulin CH2 heavy chain constant domain;
    CH3 is an immunoglobulin CH3 heavy chain constant domain;
    hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
    L1, L2, L3, and L4 are amino acid linkers;
    wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
    wherein:
  • (a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
  • (b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283; and
  • wherein:
  • (a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or
  • (b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
  • In some embodiments, the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V. In some embodiments, the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W. In some embodiments, the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • In some embodiments, at least one of L1, L2, L3, or L4 is independently 0 amino acids in length. In some embodiments, L1, L2, L3, or L4 are each independently at least one amino acid in length. In some embodiments, L1 comprises Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • In one embodiment, the disclosure provides a trispecific and/or trivalent binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind three different HIV target proteins, wherein a first polypeptide chain has a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain has a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II]
  • and a third polypeptide chain has a structure represented by the formula:

  • VH3-CH1  [III]
  • and a fourth polypeptide chain has a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
  • VL1 is a first immunoglobulin light chain variable domain;
  • VL2 is a second immunoglobulin light chain variable domain;
  • VL3 is a third immunoglobulin light chain variable domain;
  • VH1 is a first immunoglobulin heavy chain variable domain;
  • VH2 is a second immunoglobulin heavy chain variable domain;
  • VH3 is a third immunoglobulin heavy chain variable domain;
  • CL is an immunoglobulin light chain constant domain;
  • CH1 is the immunoglobulin CH1 heavy chain constant domain; and
  • L1, L2, L3 and L4 are amino acid linkers;
  • and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • In one embodiment, the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain has a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain has a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II]
  • and a third polypeptide chain has a structure represented by the formula:

  • VH3-CH1  [III]
  • and a fourth polypeptide chain has a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
  • VL1 is a first immunoglobulin light chain variable domain;
  • VL2 is a second immunoglobulin light chain variable domain;
  • VL3 is a third immunoglobulin light chain variable domain;
  • VH1 is a first immunoglobulin heavy chain variable domain;
  • VH2 is a second immunoglobulin heavy chain variable domain;
  • VH3 is a third immunoglobulin heavy chain variable domain;
  • CL is an immunoglobulin light chain constant domain;
  • CH1 is the immunoglobulin CH1 heavy chain constant domain; and
  • L1, L2, L3, and L4 are amino acid linkers;
  • wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
  • wherein:
  • (a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
  • (b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283; and
  • wherein:
  • (a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or
    (b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
  • In another embodiment, the disclosure provides a binding protein comprising a first polypeptide chain, a second polypeptide chain, a third polypeptide chain and a fourth polypeptide chain wherein:
  • (a) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 4 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 4; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 3 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 3; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 1 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 1; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 2 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 2;
  • (b) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 12 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 12; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 11 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 11; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 9 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 9; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 10 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 10;
  • (c) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 20 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 20; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 19 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 19; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 17 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 17; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 18 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 18;
  • (d) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 28 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 28; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 27 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 27; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 25 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 25; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 26 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 26;
  • (e) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 36 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 36; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 35 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 35; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 33 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 33; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 34 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 34;
  • (f) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 44 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 44; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 43 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 43; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 41 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 41; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 42 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 42;
  • (g) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 52 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 52; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 51 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 51; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 49 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 49; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 50 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 50;
  • (h) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 60 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 60; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 59 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 59; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 57 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 57; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 58 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 58;
  • (i) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 68 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 68; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 67 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 67; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 65 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 65; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 66 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 66;
  • (j) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 76 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 76; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 75 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 75; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 73 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 73; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 74 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 74;
  • (k) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 84 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 84; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 83 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 83; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 81 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 81; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 82 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 82;
  • (l) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 92 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:92; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 91 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 91; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 89 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 89; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 90 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 90;
  • (m) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 100 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 100; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 99 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 99; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 97 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 97; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 98 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 98;
  • (n) the first polypeptide comprises the amino acid sequence of SEQ ID NO: 108 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 108; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 107 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 107; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 105 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 105; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 106 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 106;
  • (o) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 116 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 116; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 115 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 115; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 113 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 113; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 114 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 114;
  • (p) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 124 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 124; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 123 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 123; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 121 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 121; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 122 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 122;
  • (q) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 132 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 132; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 131 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 131; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 129 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 129; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 130 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 130;
  • (r) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 140 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 140; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 139 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 139; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 137 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 137; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 138 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 138;
  • (s) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 148 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 148; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 147 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 147; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 145 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 145; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 146 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 146;
  • (t) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 156 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 156; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 155 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 155; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 153 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 153; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 154 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 154;
  • (u) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 164 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 164; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 163 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 163; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 161 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 161; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 162 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 162;
  • (v) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 172 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 172; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 171 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 171; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 169 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 169; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 170 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 170;
  • (w) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 180 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 180; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 179 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 179; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 177 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 177; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 178 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 178;
  • (x) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 188 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 188; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 187 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 187; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 185 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 185; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 186 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 186;
  • (y) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 196 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 196; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 195 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 195; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 193 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 193; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 194 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 194;
  • (z) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 204 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 204; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 203 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 203; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 201 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 201; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 202 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 202;
  • (aa) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 212 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 212; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 211 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 211; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 209 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 209, and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 210 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 210;
  • (bb) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 220 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 220; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 219 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 219; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 217 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 217; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 218 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 218;
  • (cc) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 228 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 228; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 227 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 227; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 225 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 225; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 226 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 226;
  • (dd) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 235 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 235; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 234 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 234; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 232 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 232; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 233 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 233; or
  • (ee) first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 243 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 243; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 242 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 242; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 240 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 240; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 241 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 241.
  • In one embodiment, the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins and one or more T cell target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I];
  • a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II];
  • a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1  [III];
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV];
  • wherein
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain:
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3, and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • In some embodiments, the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains. In some embodiments, the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • In one embodiment, the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins and one or more T cell target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I];
  • a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II];
  • a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3  [III];
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV];
  • wherein
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain;
    CH2 is an immunoglobulin CH2 heavy chain constant domain;
    CH3 is an immunoglobulin CH3 heavy chain constant domain;
    hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
    L1, L2, L3, and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • In some embodiments, the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V. In some embodiments, the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W. In some embodiments, the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • In some embodiments, the one or more HIV target proteins are selected from the group consisting of glycoprotein 120, glycoprotein 41 and glycoprotein 160. In some embodiments, the one or more T cell target proteins are CD3 or CD28. In some embodiments, the binding protein is trispecific and capable of specifically binding an HIV target protein and two different epitopes on a single T cell target protein. In some embodiments, the binding protein is trispecific and capable of specifically binding an HIV target protein and two different T cell target proteins. In some embodiments, the binding protein is trispecific and capable of specifically binding a T cell target protein and two different epitopes on a single HIV target protein. In some embodiments, the binding protein is trispecific and capable of specifically binding a T cell target protein and two different HIV target proteins. In some embodiments, the first and second polypeptide chains form two antigen binding sites that specifically target two T cell target proteins, and the third and fourth polypeptide chains form an antigen binding site that specifically binds an HIV target protein. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524. In some embodiments, VL1 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524. In some embodiments, VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively. In some embodiments, VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524. In some embodiments, VL2 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524. In some embodiments, VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively. In some embodiments, VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524. In some embodiments, VL3 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524. In some embodiments, VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively, a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 486, and 487, respectively. In some embodiments, VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511. In some embodiments, VH1 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511. In some embodiments, VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 486, and 487, respectively. In some embodiments, VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511. In some embodiments. VH2 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511. In some embodiments, VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 486, and 487, respectively. In some embodiments, VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511. In some embodiments, VH3 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511. In some embodiments, VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 488, a CDR-L2 comprising the sequence of SEQ ID NO: 489, and a CDR-L3 comprising the sequence of SEQ ID NO: 490; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 494, a CDR-L2 comprising the sequence of SEQ ID NO: 495, and a CDR-L3 comprising the sequence of SEQ ID NO: 496; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 479, a CDR-H2 comprising the sequence of SEQ ID NO: 480, and a CDR-H3 comprising the sequence of SEQ ID NO: 481; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 485, a CDR-H2 comprising the sequence of SEQ ID NO: 486, and a CDR-H3 comprising the sequence of SEQ ID NO: 487; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 522; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 524; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 509; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 511; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503. In some embodiments, VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 522; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 524; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 509; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 511; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503. In some embodiments, VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 494, a CDR-L2 comprising the sequence of SEQ ID NO: 495, and a CDR-L3 comprising the sequence of SEQ ID NO: 496; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 488, a CDR-L2 comprising the sequence of SEQ ID NO: 489, and a CDR-L3 comprising the sequence of SEQ ID NO: 490; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 485, a CDR-H2 comprising the sequence of SEQ ID NO: 486, and a CDR-H3 comprising the sequence of SEQ ID NO: 487; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 479, a CDR-H2 comprising the sequence of SEQ ID NO: 480, and a CDR-H3 comprising the sequence of SEQ ID NO: 481; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 524; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 522; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 511; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 509; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503. In some embodiments, VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 524; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 522; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513, VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 511; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 509; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503. In some embodiments, at least one of L1, L2, L3, or L4 is independently 0 amino acids in length. In some embodiments, L1, L2, L3, or L4 are each independently at least one amino acid in length. In some embodiments, L1 is Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
  • In one embodiment, the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3, and L4 are amino acid linkers;
    wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
    wherein:
  • (a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
  • (b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
  • wherein:
  • (a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
  • (b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • In some embodiments, the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains. In some embodiments, the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CHI, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • In one embodiment, the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain;
    CH2 is an immunoglobulin CH2 heavy chain constant domain;
    CH3 is an immunoglobulin CH3 heavy chain constant domain;
    hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
    L1, L2, L3, and L4 are amino acid linkers;
    wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
    wherein:
  • (a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
  • (b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
  • wherein:
  • (a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
  • (b) VH1, V H2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • In some embodiments, the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V. In some embodiments, the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W. In some embodiments, the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • In some embodiments, at least one of L1, L2, L3, or L4 is independently 0 amino acids in length. In some embodiments, L1, L2, L3, or L4 are each independently at least one amino acid in length. In some embodiments, L1 is Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
  • In one embodiment, the disclosure provides a binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain has a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain has a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II]
  • and a third polypeptide chain has a structure represented by the formula:

  • VH3-CH1  [III]
  • and a fourth polypeptide chain has a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
  • VL1 is a first immunoglobulin light chain variable domain;
  • VL2 is a second immunoglobulin light chain variable domain;
  • VL3 is a third immunoglobulin light chain variable domain;
  • VH1 is a first immunoglobulin heavy chain variable domain;
  • VH2 is a second immunoglobulin heavy chain variable domain;
  • VH3 is a third immunoglobulin heavy chain variable domain;
  • CL is an immunoglobulin light chain constant domain;
  • CH1 is the immunoglobulin CH1 heavy chain constant domain; and
  • L1, L2, L3, and L4 are amino acid linkers;
  • wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
  • wherein:
  • (a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
  • (b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
  • wherein:
  • (a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
  • (b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • In another embodiment, the disclosure provides a binding protein comprising a first polypeptide chain, a second polypeptide chain, a third polypeptide chain and a fourth polypeptide chain wherein:
  • (a) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 305 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 305; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 304 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 304; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 302 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 302; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 303 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 303;
  • (b) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 313 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 313; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 312 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 312; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 310 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 310; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 311 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 311;
  • (c) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 321 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 321; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 320 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 320; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 318 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 318; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 319 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 319;
  • (d) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 329 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 329; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 328 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 328; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 326 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 326; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 327 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 327;
  • (e) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 337 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 337; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 336 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 336; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 334 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 334; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 335 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 335;
  • (f) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 345 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 345; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 344 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 344; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 342 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 342; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 343 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 343;
  • (g) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 353 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 353; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 352 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:352; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 350 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 350; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 351 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 351;
  • (h) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 361 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 361; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 360 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 360; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 358 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 358; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 359 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 359;
  • (i) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 369 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 369; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 368 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 368; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 366 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 366; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 367 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 367;
  • (j) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 377 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 377; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 376 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 376; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 374 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 374; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 375 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 375;
  • (k) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 385 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 385; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 384 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 384; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 382 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 382; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 383 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 383;
  • (l) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 393 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 393; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 392 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 392; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 390 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 390; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 391 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 391;
  • (m) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 401 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 401; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 400 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 400; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 398 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 398; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 399 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 399;
  • (n) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 409 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 409; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 408 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 408; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 406 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 406; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 407 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 407;
  • (p) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 417 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 417; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 416 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 416; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 414 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 414; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 415 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 415;
  • (q) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 425 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 425; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 424 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 424; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 422 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 422; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 423 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 423;
  • (r) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 433 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:433; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 432 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 432; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 430 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 430; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 431 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 431;
  • (s) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 441 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 441; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 440 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 440; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 438 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 438; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 439 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 439;
  • (t) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 449 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 449; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 448 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 448; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 446 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 446; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 447 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 447;
  • (u) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 457 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 457; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 456 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 456; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 454 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 454; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 455 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 455;
  • (v) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 465 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 465; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 464 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 464; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 462 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 462; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 463 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 463; or
  • (w) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 473 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 473; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 472 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 472; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 470 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 470; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 471 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 471.
  • In one embodiment, the disclosure provides an isolated nucleic acid molecule comprising a nucleotide sequence encoding the binding protein according to any of the above embodiments. In one embodiment, the disclosure provides an expression vector comprising the nucleic acid molecule according to any of the above embodiments. In one embodiment, the disclosure provides an isolated host cell comprising the nucleic acid molecule according to any of the above embodiments. In one embodiment, the disclosure provides an isolated host cell comprising the expression vector according to any of the above embodiments. In some embodiments, the isolated host cell is a mammalian cell or an insect cell. In one embodiment, the disclosure provides a vector system comprising one or more vectors encoding a first, second, third, and fourth polypeptide chain of a binding protein according to any of the above embodiments. In some embodiments, the vector system comprises a first vector encoding the first polypeptide chain of the binding protein, a second vector encoding the second polypeptide chain of the binding protein, a third vector encoding the third polypeptide chain of the binding protein, and a fourth vector encoding the fourth polypeptide chain of the binding protein. In some embodiments, the vector system comprises a first vector encoding the first and second polypeptide chains of the binding protein, and a second vector encoding the third and fourth polypeptide chains of the binding protein. In some embodiments, the one or more vectors are expression vectors. In one embodiment, the disclosure provides an isolated host cell comprising the vector system according to any of the above embodiments. In some embodiments, the isolated host cell is a mammalian cell or an insect cell. In one embodiment, the disclosure provides a method of producing a binding protein, the method comprising: a) culturing a host cell according to any of the above embodiments under conditions such that the host cell expresses the binding protein; and b) isolating the binding protein from the host cell.
  • In one embodiment, the disclosure provides a method of preventing and/or treating HIV infection in a patient comprising administering to the patient a therapeutically effective amount of at least one binding protein according to any of the above embodiments. In some embodiments, the binding protein is co-administered with standard anti-retroviral therapy. In some embodiments, administration of the at least one binding protein results in the neutralization of one or more HIV virions. In some embodiments, administration of the at least one binding protein results in the elimination of one or more latently and/or chronically HIV-infected cells in the patient. In some embodiments, the patient is a human.
  • In one embodiment, the disclosure provides a binding protein according to any of the above embodiments for the prevention or treatment of an HIV infection in a patient. In some embodiments, the binding protein is co-administered with standard anti-retroviral therapy. In some embodiments, the binding protein causes the neutralization of one or more HIV virions in the patient. In some embodiments, the binding protein causes the elimination of one or more latently and/or chronically HIV-infected cells in the patient. In some embodiments, the patient is a human.
  • Specific embodiments of the invention will become evident from the following more detailed description of certain embodiments and the claims.
  • It is to be understood that one, some, or all of the properties of the various embodiments described herein may be combined to form other embodiments of the present invention. These and other aspects of the invention will become apparent to one of skill in the art.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIGS. 1A-D show schematic representations of trispecific binding proteins comprising four polypeptide chains that form three antigen binding sites that specifically bind three different epitopes on one or more antigens, wherein a first pair of polypeptides possess dual variable domains having a cross-over orientation forming two antigen binding sites (comprising VH1-VL1 and VH2-VL2) and wherein a second pair of polypeptides possess a single antigen binding site (comprising VH3-VL3), in accordance with some embodiments. FIG. 1A shows a trispecific binding protein comprising a “knobs-into-holes” modification, wherein the knob is on the first pair of polypeptides. FIG. 1B shows a trispecific binding protein comprising a “knobs-into-holes” modification, wherein the knob is on the second pair of polypeptides. FIG. 1C shows the orientation of variable domains on the polypeptide chains, and the knob/hole orientation for binding proteins 1-31 shown in Tables 1 and 2. “Heavy chain A” (e.g., a third polypeptide chain of the present disclosure) indicates the variable domain of heavy chain A. “Light chain A” (e.g., a fourth polypeptide chain of the present disclosure) indicates the variable domain of light chain A. “Heavy chain B” (e.g., a second polypeptide chain of the present disclosure) indicates variable domain 1 and variable domain 2 of heavy chain B. “Light chain B” (e.g., a first polypeptide chain of the present disclosure) indicates variable domain 1 and variable domain 2 of light chain B. FIG. 1D shows the orientation of variable domains on the polypeptide chains, and the knob/hole orientation for binding proteins 32-53 shown in Tables 1 and 2. “Heavy chain A” (e.g., a third polypeptide chain of the present disclosure) indicates the variable domain of heavy chain A. “Light chain A” (e.g., a fourth polypeptide chain of the present disclosure) indicates the variable domain of light chain A. “Heavy chain B” (e.g., a second polypeptide chain of the present disclosure) indicates variable domain 1 and variable domain 2 of heavy chain B. “Light chain B” (e.g., a first polypeptide chain of the present disclosure) indicates variable domain 1 and variable domain 2 of light chain B.
  • FIGS. 2A-B show purification of three trispecific binding proteins first using affinity chromatography, and then using preparative size exclusion chromatography. FIG. 2A shows the elution profile of the trispecific binding proteins during purification using protein A affinity chromatography. FIG. 2B shows purification of monomeric proteins by Superdex200 size exclusion chromatography.
  • FIGS. 3A-B show purification of the MPER Ab, CD4BS Ab “b”, and V1/V2 directed Ab “a” parental antibodies first using affinity chromatography, and then using preparative size exclusion chromatography. FIG. 3A shows the elution profile of the parental antibodies during purification using protein A affinity chromatography. FIG. 3B shows purification of monomeric proteins by Superdex200 size exclusion chromatography.
  • FIGS. 4A-B show the size exclusion chromatography profiles of bispecific and trispecific binding proteins. FIG. 4A shows the size exclusion chromatography profiles of the bispecific binding proteins. FIG. 4B shows the size exclusion chromatography profiles of the trispecific binding proteins.
  • FIG. 5 shows the Biacore sensograms of the binding kinetics of three trispecific binding proteins and the parental MPER Ab antibody for an HIV gp41-derived peptide (the MPER binding site), as assessed by the standard Biacore-based kinetic assay.
  • FIG. 6 shows the Biacore sensograms of the binding kinetics of three trispecific binding proteins and the parental CD4BS Ab “b” antibody for recombinant HIV gp120, as assessed by the standard Biacore-based kinetic assay.
  • FIG. 7 shows the results of a pharmacokinetic (PK) study of the indicated proteins after intravenous (IV) injection in rhesus macaques.
  • FIGS. 8A-8B show schematic representations of trispecific T-cell engagers, in accordance with some embodiments. The binding sites are indicated by the dotted circles.
  • FIG. 9 shows binding properties of the trispecific binding proteins “Binding Protein 32” and “CD3×CD28/CD4BS Ab ‘b’” to CD3 (CD3E represents CD3epsilon protein; CD3D represents CD3delta protein), CD28, and Resurfaced Stabilized Core 3 (RSC3) protein of gp120, as well as a negative control (human IgG).
  • FIG. 10 shows CD8 T-cell activation using the trispecific proteins “Binding Protein 32” and “CD3×CD28/CD4BS Ab ‘b’” compared to the parental CD4BS IgG4 antibody, as well as a negative control (No mAb).
  • FIG. 11 shows CD4 T-cell activation using the trispecific proteins “Binding Protein 32” and “CD3×CD28/CD4BS Ab ‘b’” compared to the parental CD4BS IgG4 antibody, as well as a negative control (No mAb).
  • FIG. 12 shows CD3 downregulation after T cell activation by the trispecific proteins “Binding Protein 32” and “CD3×CD28/CD4BS Ab ‘b’” compared to the parental CD4BS IgG4 antibody, as well as a negative control (No mAb).
  • FIGS. 13A-C show fluorescence-activated cell sorting (FACS)-based cytotoxicity assay results for trispecific binding proteins against latently infected HIV-1+ T cells. FIG. 13A shows the results for trispecific binding proteins incubated with CEM-BaL cells. FIG. 13B shows the results for trispecific binding proteins incubated with ACH2 cells. FIG. 13C shows the results for trispecific binding proteins incubated with J1.1 cells.
  • DETAILED DESCRIPTION
  • The present disclosure provides trispecific and/or trivalent binding proteins comprising four polypeptide chains that form three antigen binding sites that specifically bind to one or more human immunodeficiency virus (HIV) target proteins and/or one or more T-cell receptor target proteins, wherein a first pair of polypeptides forming the binding protein possess dual variable domains having a cross-over orientation and wherein a second pair of polypeptides forming the binding protein possess a single variable domain.
  • The following description sets forth exemplary methods, parameters, and the like. It should be recognized, however, that such description is not intended as a limitation on the scope of the present disclosure but is instead provided as a description of exemplary embodiments.
  • Definitions
  • As utilized in accordance with the present disclosure, the following terms, unless otherwise indicated, shall be understood to have the following meanings. Unless otherwise required by context, singular terms shall include pluralities and plural terms shall include the singular.
  • The term “polynucleotide” as used herein refers to single-stranded or double-stranded nucleic acid polymers of at least 10 nucleotides in length. In certain embodiments, the nucleotides comprising the polynucleotide can be ribonucleotides or deoxyribonucleotides or a modified form of either type of nucleotide. Such modifications include base modifications such as bromuridine, ribose modifications such as arabinoside and 2′,3′-dideoxyribose, and internucleotide linkage modifications such as phosphorothioate, phosphorodithioate, phosphoroselenoate, phosphorodiselenoate, phosphoroanilothioate, phoshoraniladate and phosphoroamidate. The term “polynucleotide” specifically includes single-stranded and double-stranded forms of DNA.
  • An “isolated polynucleotide” is a polynucleotide of genomic, cDNA, or synthetic origin or some combination thereof, which: (1) is not associated with all or a portion of a polynucleotide in which the isolated polynucleotide is found in nature, (2) is linked to a polynucleotide to which it is not linked in nature, or (3) does not occur in nature as part of a larger sequence.
  • An “isolated polypeptide” is one that: (1) is free of at least some other polypeptides with which it would normally be found, (2) is essentially free of other polypeptides from the same source, e.g., from the same species, (3) is expressed by a cell from a different species, (4) has been separated from at least about 50 percent of polynucleotides, lipids, carbohydrates, or other materials with which it is associated in nature, (5) is not associated (by covalent or noncovalent interaction) with portions of a polypeptide with which the “isolated polypeptide” is associated in nature, (6) is operably associated (by covalent or noncovalent interaction) with a polypeptide with which it is not associated in nature, or (7) does not occur in nature. Such an isolated polypeptide can be encoded by genomic DNA, cDNA, mRNA or other RNA, of synthetic origin, or any combination thereof. Preferably, the isolated polypeptide is substantially free from polypeptides or other contaminants that are found in its natural environment that would interfere with its use (therapeutic, diagnostic, prophylactic, research or otherwise).
  • Naturally occurring antibodies typically comprise a tetramer. Each such tetramer is typically composed of two identical pairs of polypeptide chains, each pair having one full-length “light” chain (typically having a molecular weight of about 25 kDa) and one full-length “heavy” chain (typically having a molecular weight of about 50-70 kDa). The terms “heavy chain” and “light chain” as used herein refer to any immunoglobulin polypeptide having sufficient variable domain sequence to confer specificity for a target antigen. The amino-terminal portion of each light and heavy chain typically includes a variable domain of about 100 to 110 or more amino acids that typically is responsible for antigen recognition. The carboxy-terminal portion of each chain typically defines a constant domain responsible for effector function. Thus, in a naturally occurring antibody, a full-length heavy chain immunoglobulin polypeptide includes a variable domain (VH) and three constant domains (CH1, CH2, and CH3), wherein the VH domain is at the amino-terminus of the polypeptide and the CH3 domain is at the carboxyl-terminus, and a full-length light chain immunoglobulin polypeptide includes a variable domain (VL) and a constant domain (CL), wherein the VL domain is at the amino-terminus of the polypeptide and the CL domain is at the carboxyl-terminus.
  • Human light chains are typically classified as kappa and lambda light chains, and human heavy chains are typically classified as mu, delta, gamma, alpha, or epsilon, and define the antibody's isotype as IgM, IgD, IgG, IgA, and IgE, respectively. IgG has several subclasses, including, but not limited to, IgG1, IgG2, IgG3, and IgG4, IgM has subclasses including, but not limited to, IgM1 and IgM2. IgA is similarly subdivided into subclasses including, but not limited to, IgA1 and IgA2. Within full-length light and heavy chains, the variable and constant domains typically are joined by a “J” region of about 12 or more amino acids, with the heavy chain also including a “D” region of about 10 more amino acids. See, e.g., FUNDAMENTAL IMMUNOLOGY (Paul, W., ed., Raven Press, 2nd ed., 1989), which is incorporated by reference in its entirety for all purposes. The variable regions of each light/heavy chain pair typically form an antigen binding site. The variable domains of naturally occurring antibodies typically exhibit the same general structure of relatively conserved framework regions (FR) joined by three hypervariable regions, also called complementarity determining regions or CDRs. The CDRs from the two chains of each pair typically are aligned by the framework regions, which may enable binding to a specific epitope. From the amino-terminus to the carboxyl-terminus, both light and heavy chain variable domains typically comprise the domains FR1, CDR1, FR2, CDR2, FR3, CDR3, and FR4.
  • The term “CDR set” refers to a group of three CDRs that occur in a single variable region capable of binding the antigen. The exact boundaries of these CDRs have been defined differently according to different systems. The system described by Kabat (Kabat et al., SEQUENCES OF PROTEINS OF IMMUNOLOGICAL INTEREST (National Institutes of Health, Bethesda, Md. (1987) and (1991)) not only provides an unambiguous residue numbering system applicable to any variable region of an antibody, but also provides precise residue boundaries defining the three CDRs. These CDRs may be referred to as Kabat CDRs. Chothia and coworkers (Chothia and Lesk, 1987, J. Mol. Biol. 196: 901-17; Chothia et al., 1989, Nature 342: 877-83) found that certain sub-portions within Kabat CDRs adopt nearly identical peptide backbone conformations, despite having great diversity at the level of amino acid sequence. These sub-portions were designated as L1, L2, and L3 or H1, H2, and H3 where the “L” and the “H” designates the light chain and the heavy chain regions, respectively. These regions may be referred to as Chothia CDRs, which have boundaries that overlap with Kabat CDRs. Other boundaries defining CDRs overlapping with the Kabat CDRs have been described by Padlan, 1995, FASEB J. 9: 133-39; MacCallum, 1996, J. Mol. Biol. 262(5): 732-45; and Lefranc, 2003, Dev. Comp. Immunol. 27: 55-77. Still other CDR boundary definitions may not strictly follow one of the herein systems, but will nonetheless overlap with the Kabat CDRs, although they may be shortened or lengthened in light of prediction or experimental findings that particular residues or groups of residues or even entire CDRs do not significantly impact antigen binding. The methods used herein may utilize CDRs defined according to any of these systems, although certain embodiments use Kabat or Chothia defined CDRs. Identification of predicted CDRs using the amino acid sequence is well known in the field, such as in Martin, A. C. “Protein sequence and structure analysis of antibody variable domains,” In Antibody Engineering, Vol. 2. Kontermann R., Dübel S., eds. Springer-Verlag, Berlin, p. 33-51 (2010). The amino acid sequence of the heavy and/or light chain variable domain may be also inspected to identify the sequences of the CDRs by other conventional methods, e.g., by comparison to known amino acid sequences of other heavy and light chain variable regions to determine the regions of sequence hypervariability. The numbered sequences may be aligned by eye, or by employing an alignment program such as one of the CLUSTAL suite of programs, as described in Thompson, 1994, Nucleic Acids Res. 22: 4673-80. Molecular models are conventionally used to correctly delineate framework and CDR regions and thus correct the sequence-based assignments.
  • The term “Fc” as used herein refers to a molecule comprising the sequence of a non-antigen-binding fragment resulting from digestion of an antibody or produced by other means, whether in monomeric or multimeric form, and can contain the hinge region. The original immunoglobulin source of the native Fc is preferably of human origin and can be any of the immunoglobulins, although IgG1 and IgG2 are preferred. Fc molecules are made up of monomeric polypeptides that can be linked into dimeric or multimeric forms by covalent (i.e., disulfide bonds) and non-covalent association. The number of intermolecular disulfide bonds between monomeric subunits of native Fc molecules ranges from 1 to 4 depending on class (e.g., IgG, IgA, and IgE) or subclass (e.g., IgG1, IgG2, IgG3, IgA1, and IgGA2). One example of a Fc is a disulfide-bonded dimer resulting from papain digestion of an IgG. The term “Fc” as used herein is generic to the monomeric, dimeric, and multimeric forms.
  • A F(ab) fragment typically includes one light chain and the VH and CH1 domains of one heavy chain, wherein the VH-CH1 heavy chain portion of the F(ab) fragment cannot form a disulfide bond with another heavy chain polypeptide. As used herein, a F(ab) fragment can also include one light chain containing two variable domains separated by an amino acid linker and one heavy chain containing two variable domains separated by an amino acid linker and a CH1 domain.
  • A F(ab′) fragment typically includes one light chain and a portion of one heavy chain that contains more of the constant region (between the CH1 and CH2 domains), such that an interchain disulfide bond can be formed between two heavy chains to form a F(ab′)2 molecule.
  • The term “binding protein” as used herein refers to a non-naturally occurring (or recombinant or engineered) molecule that specifically binds to at least one target antigen, and which comprises four polypeptide chains that form at least three antigen binding sites, wherein a first polypeptide chain has a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain has a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II]
  • and a third polypeptide chain has a structure represented by the formula:

  • VH3-CH1  [III]
  • and a fourth polypeptide chain has a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3, and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • A “recombinant” molecule is one that has been prepared, expressed, created, or isolated by recombinant means.
  • One embodiment of the disclosure provides binding proteins having biological and immunological specificity to between one and three target antigens. Another embodiment of the disclosure provides nucleic acid molecules comprising nucleotide sequences encoding polypeptide chains that form such binding proteins. Another embodiment of the disclosure provides expression vectors comprising nucleic acid molecules comprising nucleotide sequences encoding polypeptide chains that form such binding proteins. Yet another embodiment of the disclosure provides host cells that express such binding proteins (i.e., comprising nucleic acid molecules or vectors encoding polypeptide chains that form such binding proteins).
  • The term “swapability” as used herein refers to the interchangeability of variable domains within the binding protein format and with retention of folding and ultimate binding affinity. “Full swapability” refers to the ability to swap the order of both VH1 and VH2 domains, and therefore the order of VL1 and VL2 domains, in the polypeptide chain of formula I or the polypeptide chain of formula II (i.e., to reverse the order) while maintaining full functionality of the binding protein as evidenced by the retention of binding affinity. Furthermore, it should be noted that the designations VH and VL refer only to the domain's location on a particular protein chain in the final format. For example, VH1 and VH2 could be derived from VL1 and VL2 domains in parent antibodies and placed into the VH1 and VH2 positions in the binding protein. Likewise, VL1 and VL2 could be derived from VH1 and VH2 domains in parent antibodies and placed in the VH1 and VH2 positions in the binding protein. Thus, the VH and VL designations refer to the present location and not the original location in a parent antibody. VH and VL domains are therefore “swappable.”
  • The term “antigen” or “target antigen” or “antigen target” as used herein refers to a molecule or a portion of a molecule that is capable of being bound by a binding protein, and additionally is capable of being used in an animal to produce antibodies capable of binding to an epitope of that antigen. A target antigen may have one or more epitopes. With respect to each target antigen recognized by a binding protein, the binding protein is capable of competing with an intact antibody that recognizes the target antigen.
  • The term “HIV” as used herein means Human Immunodeficiency Virus. As used herein, the term “HIV infection” generally encompasses infection of a host, particularly a human host, by the human immunodeficiency virus (HIV) family of retroviruses including, but not limited to, HIV I, HIV II, HIV III (also known as HTLV-II, LAV-1, LAV-2). HIV can be used herein to refer to any strains, forms, subtypes, clades and variations in the HIV family. Thus, treating HIV infection will encompass the treatment of a person who is a carrier of any of the HIV family of retroviruses or a person who is diagnosed with active AIDS, as well as the treatment or prophylaxis of the AIDS-related conditions in such persons.
  • The term “AIDS” as used herein means Acquired Immunodeficiency Syndrome. AIDS is caused by HIV.
  • The terms “CD4bs” or “CD4 binding site” refer to the binding site for CD4 (cluster of differentiation 4), which is a glycoprotein found on the surface of immune cells such as T helper cells, monocytes, macrophages, and dendritic cells.
  • The term “CD3” is cluster of differentiation factor 3 polypeptide and is a T-cell surface protein that is typically part of the T cell receptor (TCR) complex.
  • “CD28” is cluster of differentiation 28 polypeptide and is a T-cell surface protein that provides co-stimulatory signals for T-cell activation and survival.
  • The term “glycoprotein 160” or “gp160 protein” refers to the envelope glycoprotein complex of HIV and which is a homotrimer that is cleaved into gp120 and gp41 subunits.
  • The term “MPER” refers to the membrane-proximal external region of glycoprotein 41 (gp41), which is a subunit of the envelope protein complex of retroviruses, including HIV.
  • The term “glycan” refers to the carbohydrate portion of a glycoconjugate, such as a glycoprotein, glycolipid, or a proteoglycan. In the disclosed binding proteins, glycan refers to the HIV-1 envelope glycoprotein gp120.
  • The term “T-cell engager” refers to binding proteins directed to a host's immune system, more specifically the T cells' cytotoxic activity as well as directed to a HIV target protein.
  • The term “trimer apex” refers to apex of HIV-1 envelope glycoprotein gp120.
  • The term “monospecific binding protein” refers to a binding protein that specifically binds to one antigen target.
  • The term “monovalent binding protein” refers to a binding protein that has one antigen binding site.
  • The term “bispecific binding protein” refers to a binding protein that specifically binds to two different antigen targets.
  • The term “bivalent binding protein” refers to a binding protein that has two binding sites.
  • The term “trispecific binding protein” refers to a binding protein that specifically binds to three different antigen targets.
  • The term “trivalent binding protein” refers to a binding protein that has three binding sites. In particular embodiments the trivalent binding protein can bind to one antigen target. In other embodiments, the trivalent binding protein can bind to two antigen targets. In other embodiments, the trivalent binding protein can bind to three antigen targets.
  • An “isolated” binding protein is one that has been identified and separated and/or recovered from a component of its natural environment. Contaminant components of its natural environment are materials that would interfere with diagnostic or therapeutic uses for the binding protein, and may include enzymes, hormones, and other proteinaceous or non-proteinaceous solutes. In some embodiments, the binding protein will be purified: (1) to greater than 95% by weight of antibody as determined by the Lowry method, and most preferably more than 99% by weight, (2) to a degree sufficient to obtain at least 15 residues of N-terminal or internal amino acid sequence by use of a spinning cup sequenator, or (3) to homogeneity by SDS-PAGE under reducing or nonreducing conditions using Coomassie blue or, preferably, silver stain. Isolated binding proteins include the binding protein in situ, within recombinant cells since at least one component of the binding protein's natural environment will not be present.
  • The terms “substantially pure” or “substantially purified” as used herein refer to a compound or species that is the predominant species present (i.e., on a molar basis it is more abundant than any other individual species in the composition). In some embodiments, a substantially purified fraction is a composition wherein the species comprises at least about 50% (on a molar basis) of all macromolecular species present. In other embodiments, a substantially pure composition will comprise more than about 80%, 85%, 90%, 95%, or 99% of all macromolar species present in the composition. In still other embodiments, the species is purified to essential homogeneity (contaminant species cannot be detected in the composition by conventional detection methods) wherein the composition consists essentially of a single macromolecular species.
  • A “neutralizing” binding protein as used herein refers to a molecule that is able to block or substantially reduce an effector function of a target antigen to which it binds. As used herein, “substantially reduce” means at least about 60%, preferably at least about 70%, more preferably at least about 75%, even more preferably at least about 80%, still more preferably at least about 85%, most preferably at least about 90% reduction of an effector function of the target antigen.
  • The term “epitope” includes any determinant, preferably a polypeptide determinant, capable of specifically binding to an immunoglobulin or T-cell receptor. In certain embodiments, epitope determinants include chemically active surface groupings of molecules such as amino acids, sugar side chains, phosphoryl groups, or sulfonyl groups, and, in certain embodiments, may have specific three-dimensional structural characteristics and/or specific charge characteristics. An epitope is a region of an antigen that is bound by an antibody or binding protein. In certain embodiments, a binding protein is said to specifically bind an antigen when it preferentially recognizes its target antigen in a complex mixture of proteins and/or macromolecules. In some embodiments, a binding protein is said to specifically bind an antigen when the equilibrium dissociation constant is ≤10−8 M, more preferably when the equilibrium dissociation constant is ≤10−9 M, and most preferably when the dissociation constant is ≤10−10 M.
  • The dissociation constant (KD) of a binding protein can be determined, for example, by surface plasmon resonance. Generally, surface plasmon resonance analysis measures real-time binding interactions between ligand (a target antigen on a biosensor matrix) and analyte (a binding protein in solution) by surface plasmon resonance (SPR) using the BIAcore system (Pharmacia Biosensor; Piscataway, N.J.). Surface plasmon analysis can also be performed by immobilizing the analyte (binding protein on a biosensor matrix) and presenting the ligand (target antigen). The term “KD,” as used herein refers to the dissociation constant of the interaction between a particular binding protein and a target antigen.
  • The term “specifically binds” as used herein refers to the ability of a binding protein or an antigen-binding fragment thereof to bind to an antigen containing an epitope with an Kd of at least about 1×10−6 M, 1×10−7 M, 1×10−8 M, 1×10−9 M, 1×10−10 M, 1×10−11 M, 1×10−12 M, or more, and/or to bind to an epitope with an affinity that is at least two-fold greater than its affinity for a nonspecific antigen.
  • The term “linker” as used herein refers to one or more amino acid residues inserted between immunoglobulin domains to provide sufficient mobility for the domains of the light and heavy chains to fold into cross over dual variable region immunoglobulins. A linker is inserted at the transition between variable domains or between variable and constant domains, respectively, at the sequence level. The transition between domains can be identified because the approximate size of the immunoglobulin domains are well understood. The precise location of a domain transition can be determined by locating peptide stretches that do not form secondary structural elements such as beta-sheets or alpha-helices as demonstrated by experimental data or as can be assumed by techniques of modeling or secondary structure prediction. The linkers described herein are referred to as L1, which is located on the light chain between the C-terminus of the VL2 and the N-terminus of the VL1 domain; and L2, which is located on the light chain between the C-terminus of the VL1 and the N-terminus of the CL domain. The heavy chain linkers are known as L3, which is located between the C-terminus of the VH1 and the N-terminus of the VH2 domain; and L4, which is located between the C-terminus of the VH2 and the N-terminus of the CH1 domain.
  • The term “vector” as used herein refers to any molecule (e.g., nucleic acid, plasmid, or virus) that is used to transfer coding information to a host cell. The term “vector” includes a nucleic acid molecule that is capable of transporting another nucleic acid to which it has been linked. One type of vector is a “plasmid,” which refers to a circular double-stranded DNA molecule into which additional DNA segments may be inserted. Another type of vector is a viral vector, wherein additional DNA segments may be inserted into the viral genome. Certain vectors are capable of autonomous replication in a host cell into which they are introduced (e.g., bacterial vectors having a bacterial origin of replication and episomal mammalian vectors). Other vectors (e.g., non-episomal mammalian vectors) can be integrated into the genome of a host cell upon introduction into the host cell and thereby are replicated along with the host genome. In addition, certain vectors are capable of directing the expression of genes to which they are operatively linked. Such vectors are referred to herein as “recombinant expression vectors” (or simply, “expression vectors”). In general, expression vectors of utility in recombinant DNA techniques are often in the form of plasmids. The terms “plasmid” and “vector” may be used interchangeably herein, as a plasmid is the most commonly used form of vector. However, the disclosure is intended to include other forms of expression vectors, such as viral vectors (e.g., replication defective retroviruses, adenoviruses, and adeno-associated viruses), which serve equivalent functions.
  • The phrase “recombinant host cell” (or “host cell”) as used herein refers to a cell into which a recombinant expression vector has been introduced. A recombinant host cell or host cell is intended to refer not only to the particular subject cell, but also to the progeny of such a cell. Because certain modifications may occur in succeeding generations due to either mutation or environmental influences, such progeny may not, in fact, be identical to the parent cell, but such cells are still included within the scope of the term “host cell” as used herein. A wide variety of host cell expression systems can be used to express the binding proteins, including bacterial, yeast, baculoviral, and mammalian expression systems (as well as phage display expression systems). An example of a suitable bacterial expression vector is pUC19. To express a binding protein recombinantly, a host cell is transformed or transfected with one or more recombinant expression vectors carrying DNA fragments encoding the polypeptide chains of the binding protein such that the polypeptide chains are expressed in the host cell and, preferably, secreted into the medium in which the host cells are cultured, from which medium the binding protein can be recovered.
  • The term “transformation” as used herein refers to a change in a cell's genetic characteristics, and a cell has been transformed when it has been modified to contain a new DNA. For example, a cell is transformed where it is genetically modified from its native state. Following transformation, the transforming DNA may recombine with that of the cell by physically integrating into a chromosome of the cell, or may be maintained transiently as an episomal element without being replicated, or may replicate independently as a plasmid. A cell is considered to have been stably transformed when the DNA is replicated with the division of the cell. The term “transfection” as used herein refers to the uptake of foreign or exogenous DNA by a cell, and a cell has been “transfected” when the exogenous DNA has been introduced inside the cell membrane. A number of transfection techniques are well known in the art. Such techniques can be used to introduce one or more exogenous DNA molecules into suitable host cells.
  • The term “naturally occurring” as used herein and applied to an object refers to the fact that the object can be found in nature and has not been manipulated by man. For example, a polynucleotide or polypeptide that is present in an organism (including viruses) that can be isolated from a source in nature and that has not been intentionally modified by man is naturally-occurring. Similarly, “non-naturally occurring” as used herein refers to an object that is not found in nature or that has been structurally modified or synthesized by man.
  • As used herein, the twenty conventional amino acids and their abbreviations follow conventional usage. Stereoisomers (e.g., D-amino acids) of the twenty conventional amino acids; unnatural amino acids and analogs such as α-,α-disubstituted amino acids, N-alkyl amino acids, lactic acid, and other unconventional amino acids may also be suitable components for the polypeptide chains of the binding proteins. Examples of unconventional amino acids include: 4-hydroxyproline, γ-carboxyglutamate, ε-N,N,N-trimethyllysine, ε-N-acetyllysine, O-phosphoserine, N-acetylserine, N-formylmethionine, 3-methylhistidine, 5-hydroxylysine, σ-N-methylarginine, and other similar amino acids and imino acids (e.g., 4-hydroxyproline). In the polypeptide notation used herein, the left-hand direction is the amino terminal direction and the right-hand direction is the carboxyl-terminal direction, in accordance with standard usage and convention.
  • Naturally occurring residues may be divided into classes based on common side chain properties:
  • (1) hydrophobic: Met, Ala, Val, Leu, Ile, Phe, Trp, Tyr, Pro;
    (2) polar hydrophilic: Arg, Asn, Asp, Gln, Glu, His, Lys, Ser, Thr;
    (3) aliphatic: Ala, Gly, Ile, Leu, Val, Pro;
    (4) aliphatic hydrophobic: Ala, Ile, Leu, Val, Pro;
    (5) neutral hydrophilic: Cys, Ser, Thr, Asn, Gln;
    (6) acidic: Asp, Glu;
    (7) basic: His, Lys, Arg;
    (8) residues that influence chain orientation: Gly, Pro;
    (9) aromatic: His, Trp, Tyr, Phe; and
    (10) aromatic hydrophobic: Phe, Trp, Tyr.
  • Conservative amino acid substitutions may involve exchange of a member of one of these classes with another member of the same class. Non-conservative substitutions may involve the exchange of a member of one of these classes for a member from another class.
  • A skilled artisan will be able to determine suitable variants of the polypeptide chains of the binding proteins using well-known techniques. For example, one skilled in the art may identify suitable areas of a polypeptide chain that may be changed without destroying activity by targeting regions not believed to be important for activity. Alternatively, one skilled in the art can identify residues and portions of the molecules that are conserved among similar polypeptides. In addition, even areas that may be important for biological activity or for structure may be subject to conservative amino acid substitutions without destroying the biological activity or without adversely affecting the polypeptide structure.
  • The term “patient” as used herein includes human and animal subjects.
  • The terms “treatment” or “treat” as used herein refer to both therapeutic treatment and prophylactic or preventative measures. Those in need of treatment include those having the disorder as well as those prone to have a disorder or those in which the disorder is to be prevented. In particular embodiments, binding proteins can be used to treat humans infected with HIV, or humans susceptible to HIV infection, or ameliorate HIV infection in a human subject infected with HIV. The binding proteins can also be used to prevent HIV in a human patient.
  • It should be understood as that treating humans infected with HIV include those subjects who are at any one of the several stages of HIV infection progression, which, for example, include acute primary infection syndrome (which can be asymptomatic or associated with an influenza-like illness with fevers, malaise, diarrhea and neurologic symptoms such as headache), asymptomatic infection (which is the long latent period with a gradual decline in the number of circulating CD4+T cells), and AIDS (which is defined by more serious AIDS-defining illnesses and/or a decline in the circulating CD4 cell count to below a level that is compatible with effective immune function). In addition, treating or preventing HIV infection will also encompass treating suspected infection by HIV after suspected past exposure to HIV by e.g., contact with HIV-contaminated blood, blood transfusion, exchange of body fluids, “unsafe” sex with an infected person, accidental needle stick, receiving a tattoo or acupuncture with contaminated instruments, or transmission of the virus from a mother to a baby during pregnancy, delivery or shortly thereafter.
  • The terms “pharmaceutical composition” or “therapeutic composition” as used herein refer to a compound or composition capable of inducing a desired therapeutic effect when properly administered to a patient.
  • The term “pharmaceutically acceptable carrier” or “physiologically acceptable carrier” as used herein refers to one or more formulation materials suitable for accomplishing or enhancing the delivery of a binding protein.
  • The terms “effective amount” and “therapeutically effective amount” when used in reference to a pharmaceutical composition comprising one or more binding proteins refer to an amount or dosage sufficient to produce a desired therapeutic result. More specifically, a therapeutically effective amount is an amount of a binding protein sufficient to inhibit, for some period of time, one or more of the clinically defined pathological processes associated with the condition being treated. The effective amount may vary depending on the specific binding protein that is being used, and also depends on a variety of factors and conditions related to the patient being treated and the severity of the disorder. For example, if the binding protein is to be administered in vivo, factors such as the age, weight, and health of the patient as well as dose response curves and toxicity data obtained in preclinical animal work would be among those factors considered. The determination of an effective amount or therapeutically effective amount of a given pharmaceutical composition is well within the ability of those skilled in the art.
  • One embodiment of the disclosure provides a pharmaceutical composition comprising a pharmaceutically acceptable carrier and a therapeutically effective amount of a binding protein.
  • Trispecific and/or Trivalent Binding Proteins
  • In one embodiment, the binding protein of the disclosure is a trispecific and/or trivalent binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., three different) HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is an immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3 and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • In one embodiment, the binding protein of the disclosure is a trispecific and/or trivalent binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., three different) HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is an immunoglobulin CH1 heavy chain constant domain;
    CH2 is an immunoglobulin CH2 heavy chain constant domain;
    CH3 is an immunoglobulin CH3 heavy chain constant domain;
    hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
    L1, L2, L3 and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • In some embodiments, the first polypeptide chain and the second polypeptide chain have a cross-over orientation that forms two distinct antigen binding sites. In some embodiments, the VH1 and VL1 form a binding pair and form the first antigen binding site. In some embodiments, the VH2 and VL2 form a binding pair and form the second antigen binding site. In some embodiments, the third polypeptide and the fourth polypeptide form a third antigen binding site. In some embodiments, the VH3 and VL3 form a binding pair and form the third antigen binding site.
  • In some embodiments, VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; and VH1, VH2 and VH3, are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs:1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242. In other embodiments, VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-283; and VH1, VH2 and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265. In some embodiments, VL1, VL2 and VL3 are each independently a light chain variable domain comprising a light chain variable domain sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein. In some embodiments, VH1, VH2 and VH3 are each independently a heavy chain variable domain comprising a heavy chain variable domain sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein. In some embodiments, VL1, VL2 and VL3 are each independently a light chain variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein. In some embodiments, VH1, VH2 and VH3 are each independently a heavy chain variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein.
  • In some embodiments, VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; and VH1, VH2 and VH3, are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472. In other embodiments, VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and VH1, VH2 and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • In particular embodiments, the order of the VH1 and VH2 domains, and therefore the order of VL1 and VL2 domains, in the polypeptide chain of formula I or the polypeptide chain of formula II (i.e., to reverse the order) are swapped.
  • In some embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 4 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 4; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 3 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 3; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 1 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 1; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 2 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 2.
  • In some embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 12 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 12; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 11 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 11; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 9 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 9; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 10 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 10.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 20 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 20; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 19 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 19; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 17 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 17; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 18 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 18.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 28 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 28; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 27 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 27; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 25 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 25; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 26 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 26.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 36 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 36; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 35 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 35; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 33 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 33; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 34 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 34.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 44 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 44; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 43 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 43; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 41 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 41; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 42 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 42.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 52 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 52; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 51 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 51; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 49 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 49; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 50 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 50.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 60 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 60; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 59 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 59; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 57 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 57; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 58 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 58.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 68 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 68; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 67 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 67; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 65 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 65; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 66 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 66.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 76 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 76; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 75 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 75; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 73 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 73; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 74 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 74.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 84 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 84; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 83 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 83; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 81 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 81; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 82 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 82.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 92 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:92; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 91 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 91; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 89 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 89; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 90 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 90.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 100 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 100; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 99 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 99; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 97 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 97; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 98 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 98.
  • In other embodiments, the first polypeptide comprises the amino acid sequence of SEQ ID NO: 108 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 108; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 107 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 107; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 105 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 105; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 106 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 106.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 116 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 116; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 115 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 115; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 113 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 113; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 114 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 114.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 124 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 124; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 123 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 123; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 121 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 121; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 122 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 122.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 132 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 132; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 131 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 131; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 129 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 129; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 130 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 130.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 140 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 140; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 139 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 139; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 137 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 137; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 138 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 138.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 148 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 148; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 147 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 147; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 145 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 145; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 146 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 146.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 156 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 156; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 155 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 155; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 153 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 153; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 154 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 154.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 164 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 164; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 163 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 163; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 161 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 161; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 162 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 162.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 172 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 172; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 171 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 171; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 169 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 169; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 170 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 170.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 180 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 180; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 179 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 179; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 177 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 177; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 178 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 178.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 188 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 188; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 187 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 187; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 185 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 185; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 186 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 186.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 196 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 196; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 195 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 195; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 193 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 193; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 194 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 194.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 204 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 204; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 203 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 203; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 201 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 201; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 202 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 202.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 212 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 212; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 211 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 211; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 209 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 209; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 210 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 210.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 220 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 220; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 219 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 219; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 217 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 217; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 218 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 218.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 228 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 228; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 227 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 227; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 225 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 225; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 226 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 226.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 235 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 235; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 234 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 234; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 232 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 232; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 233 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 233.
  • In other embodiments, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 243 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 243; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 242 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 242; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 240 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 240; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 241 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 241.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 305 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 305; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 304 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 304; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 302 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 302; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 303 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 303.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 313 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 313; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 312 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 312; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 310 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 310; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 311 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 311.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 321 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 321; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 320 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 320; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 318 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 318; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 319 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 319.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 329 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 329; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 328 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 328; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 326 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 326; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 327 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 327.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 337 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 337; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 336 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 336; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 334 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 334; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 335 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 335.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 345 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 345; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 344 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 344; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 342 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 342; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 343 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 343.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 353 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 353; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 352 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:352; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 350 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 350; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 351 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 351.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 361 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 361; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 360 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 360; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 358 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 358; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 359 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 359.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 369 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 369; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 368 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 368; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 366 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 366; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 367 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 367.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 377 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 377; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 376 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 376; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 374 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 374; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 375 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 375.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 385 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 385; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 384 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 384; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 382 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 382; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 383 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 383.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 393 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 393; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 392 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 392; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 390 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 390; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 391 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 391.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 401 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 401; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 400 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 400; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 398 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 398; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 399 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 399.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 409 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 409; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 408 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 408; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 406 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 406; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 407 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 407.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 417 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 417; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 416 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 416; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 414 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 414; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 415 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 415.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 425 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 425; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 424 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 424; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 422 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 422; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 423 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 423.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 433 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:433; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 432 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 432; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 430 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 430; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 431 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 431.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 441 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 441; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 440 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 440; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 438 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 438; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 439 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 439.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 449 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 449; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 448 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 448; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 446 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 446; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 447 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 447.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 457 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 457; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 456 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 456; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 454 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 454; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 455 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 455.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 465 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 465; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 464 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 464; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 462 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 462; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 463 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 463.
  • In another embodiment, the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 473 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 473; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 472 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 472; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 470 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 470; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 471 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 471.
  • In other embodiments, the binding protein of the disclosure is a trispecific and/or trivalent binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., three) HIV target antigens, wherein a first polypeptide chain has a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain has a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1-hinge-CH2-CH3(hole)  [II]
  • and a third polypeptide chain has a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3(knob)  [III]
  • and a fourth polypeptide chain has a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3 and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • In other embodiments, the binding protein of the disclosure is a trispecific and/or trivalent binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., three) HIV target antigens, wherein a first polypeptide chain has a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain has a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1-hinge-CH2-CH3(knob)  [II]
  • and a third polypeptide chain has a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3(hole)  [III]
  • and a fourth polypeptide chain has a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3 and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • Additional Examples of Trispecific Binding Proteins
  • In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521. In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising an amino acid sequence having at least about 80%, at least about 81%, at least about 82%, at least about 83%, at least about 84%, at least about 85%, at least about 86%, at least about 87%, at least about 88%, at least about 89%, at least about 90%, at least about 91%, at least about 92%, at least about 93%, at least about 94%, at least about 95%, at least about 96%, at least about 97%, at least about 98%, or at least about 99% sequence identity to a sequence as set forth in any one of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508. In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising an amino acid sequence having at least about 80%, at least about 81%, at least about 82%, at least about 83%, at least about 84%, at least about 85%, at least about 86%, at least about 87%, at least about 88%, at least about 89%, at least about 90%, at least about 91%, at least about 92%, at least about 93%, at least about 94%, at least about 95%, at least about 96%, at least about 97%, at least about 98%, or at least about 99% sequence identity to a sequence as set forth in any one of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • In some embodiments, VL1, VL2, and VL3 comprise an amino acid sequence as set forth in SEQ ID NOs: 518, 519, and 512, respectively, and VH1, VH2, and VH3 comprise an amino acid sequence as set forth in SEQ ID NOs: 504, 506, and 502, respectively. In some embodiments, VL1, VL2, and VL3 comprise an amino acid sequence as set forth in SEQ ID NOs: 518, 519, and 513, respectively, and VH1, VH2, and VH3 comprises an amino acid sequence as set forth in SEQ ID NOs: 504, 506, and 503, respectively. In some embodiments, VL1, VL2, and VL3 comprises an amino acid sequence as set forth in SEQ ID NOs: 519, 518, and 513, respectively, and VH1, VH2, and VH3 comprises an amino acid sequence as set forth in SEQ ID NOs: 506, 504, and 503, respectively.
  • In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521. In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508. In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a light chain variable domain sequence shown in Table C. In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a heavy chain variable domain sequence shown in Table C.
  • In some embodiments, VL1 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 518, VL2 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 519, VL3 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 512, VH1 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 504, VH2 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 506, and VH3 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 502. In some embodiments, VL1 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 518, VL2 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 519, VL3 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 513, VH1 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 504, VH, is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 506, and VH3 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 503. In some embodiments. VL1 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 519, VL2 is a variable domain comprising a CDR-L1. CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 518, VL3 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 513, and VH1 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 506, VH2 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 504, and VH3 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 503.
  • In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising: (a) a CDR-L1 comprising a sequence selected from the group consisting of SEQ ID NOs: 266, 269, 275, 278, 281, and 500; (b) a CDR-L2 comprising a sequence selected from the group consisting of SEQ ID NOs: 267, 270, 276, 279, 282, and 501; and/or (c) a CDR-L3 comprising a sequence selected from the group consisting of SEQ ID NOs: 268, 271, 274, 277, 280, and 283. In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 comprising amino acid sequences as shown in Table B. In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
  • In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising: (a) a CDR-H1 comprising a sequence selected from the group consisting of SEQ ID NOs: 248, 251, 254, 257, 263, and 499; (b) a CDR-H2 comprising a sequence selected from the group consisting of SEQ ID NOs: 252, 255, 258, 261, 264, and 497; and/or (c) a CDR-H3 comprising a sequence selected from the group consisting of SEQ ID NOs: 250, 253, 256, 259, 262, 265, and 498. In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 comprising amino acid sequences as shown in Table B. In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
  • In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 500, 501, and 274, respectively; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 275, 276, and 277, respectively; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 266, 267, and 268, respectively; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 254, 255, and 256, respectively; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 257, 258, and 259, respectively; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 248, 497, and 250, respectively. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 500, 501, and 274, respectively; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 275, 276, and 277, respectively; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 269, 270, and 271, respectively; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 254, 255, and 256, respectively; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 257, 258, and 259, respectively; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 251, 252, and 253, respectively. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 275, 276, and 277, respectively; V2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 500, 501, and 274, respectively; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 269, 270, and 271, respectively; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 257, 258, and 259, respectively; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 254, 255, and 256, respectively; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 251, 252, and 253, respectively.
  • Additional Trispecific Binding Proteins Targeting One or More HIV Target Proteins and One or More T Cell Target Proteins
  • In some embodiments, a binding protein of the present disclosure comprises four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., one or two) HIV target proteins and one or more (e.g., one or two) T cell target proteins, wherein a first polypeptide chain has a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I];
  • a second polypeptide chain has a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II];
  • a third polypeptide chain has a structure represented by the formula:

  • VH3-CH1  [III];
  • and a fourth polypeptide chain has a structure represented by the formula:

  • VL3-CL  [IV];
  • wherein
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is an immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3, and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • In some embodiments, a binding protein of the present disclosure comprises four polypeptide chains that form three antigen binding sites that specifically bind one or more (e.g., one or two) HIV target proteins and one or more (e.g., one or two) T cell target proteins, wherein a first polypeptide chain has a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I];
  • a second polypeptide chain has a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II];
  • a third polypeptide chain has a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3  [III];
  • and a fourth polypeptide chain has a structure represented by the formula

  • VL3-CL  [IV];
  • wherein
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is an immunoglobulin CH1 heavy chain constant domain;
    CH2 is an immunoglobulin CH2 heavy chain constant domain;
    CH3 is an immunoglobulin CH3 heavy chain constant domain;
    hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
    L1, L2, L3, and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • In some embodiments, the first polypeptide chain and the second polypeptide chain have a cross-over orientation that forms two distinct antigen binding sites. In some embodiments, the VH1 and VL1 form a binding pair and form the first antigen binding site. In some embodiments, the VH2 and VL2 form a binding pair and form the second antigen binding site. In some embodiments, the third polypeptide and the fourth polypeptide form a third antigen binding site. In some embodiments, the VH3 and VL3 form a binding pair and form the third antigen binding site.
  • In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524. In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising an amino acid sequence having at least about 80%, at least about 81%, at least about 82%, at least about 83%, at least about 84%, at least about 85%, at least about 86%, at least about 87%, at least about 88%, at least about 89%, at least about 90%, at least about 91%, at least about 92%/0, at least about 93%, at least about 94%, at least about 95%, at least about 96%, at least about 97%, at least about 98%, or at least about 99% sequence identity to a sequence as set forth in any one of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511. In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising an amino acid sequence having at least about 80%, at least about 81%, at least about 82%, at least about 83%, at least about 84%, at least about 85%, at least about 86%, at least about 87%, at least about 88%, at least about 89%, at least about 90%, at least about 91%, at least about 92%, at least about 93%, at least about 94%, at least about 95%, at least about 96%, at least about 97%, at least about 98%, or at least about 990% sequence identity to a sequence as set forth in any one of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • In some embodiments, VL1, VL2, and VL3 comprise an amino acid sequence as set forth in SEQ ID NOs: 522, 524, and 513, respectively, and VH1, VH2, and VH3 comprise an amino acid sequence as set forth in SEQ ID NOs: 509, 511, and 503, respectively. In some embodiments, VL1, V L2, and VL3 comprise an amino acid sequence as set forth in SEQ ID NOs: 524, 522, and 513, respectively, and VH1, VH2, and VH3 comprise an amino acid sequence as set forth in SEQ ID NOs: 511, 509, and 503, respectively.
  • In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • In some embodiments, VL1 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 522, VL2 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 524, VL3 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 513, VH1 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 509, VH2 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 511, and VH3 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 503. In some embodiments, VL1 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 524, VL2 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence of SEQ ID NO: 522, VL3 is a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a light chain variable domain sequence of SEQ ID NO: 513, VH1 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 511, VH2 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 509, and VH3 is a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence of SEQ ID NO: 503.
  • In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising: (a) a CDR-L1 comprising a sequence selected from the group consisting of SEQ ID NOs: 266, 269, 275, 278, 281, 488, 491, 494 and 500; (b) a CDR-L2 comprising a sequence selected from the group consisting of SEQ ID NOs: 267, 270, 276, 279, 282, 489, 492, 495, and 501; and (c) a CDR-L3 comprising a sequence selected from the group consisting of SEQ ID NOs: 268, 271, 274, 277, 280, 283, 490, 493, and 496. In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 comprising amino acid sequences as shown in Table B. In some embodiments, VL1, VL2 and VL3 are each independently a variable domain comprising a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively.
  • In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising: (a) a CDR-H1 comprising a sequence selected from the group consisting of SEQ ID NOs: 248, 251, 254, 257, 263, 479, 482, 485, and 499; (b) a CDR-H2 comprising a sequence selected from the group consisting of SEQ ID NOs: 252, 255, 258, 261, 264, 480, 483, 486, and 497; and (c) a CDR-H3 comprising a sequence selected from the group consisting of SEQ ID NOs: 250, 253, 256, 259, 262, 265, 481, 484, 487, and 498. In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 comprising amino acid sequences as shown in Table B. In some embodiments, VH1, VH2 and VH3 are each independently a variable domain comprising a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 486, and 487, respectively.
  • In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 488, 489, and 490, respectively; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 494, 495, and 496, respectively; VL3 comprises a CDR-L1. CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 269, 270, and 271, respectively; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 479, 480, and 481, respectively; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 485, 486, and 487, respectively; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 251, 252, and 253, respectively. In some embodiments, VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 494, 495, and 496, respectively; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 488, 489, and 490, respectively; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising the sequence of SEQ ID NOs: 269, 270, and 271, respectively; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 485, 486, and 487, respectively; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 479, 480, and 481, respectively; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising the sequence of SEQ ID NOs: 251, 252, and 253, respectively.
  • In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein, VL2 and VH2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein, and VL3 and VH3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein. In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein, VL2 and VH2 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 described herein, and VL3 and VH3 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein.
  • In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein, VL2 and VH2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein, and VL3 and VH3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein. In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein, VL2 and VH2 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein, and VL3 and VH3 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 described herein.
  • In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein, VL2 and VH2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein, and VL3 and VH3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein. In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 described herein, VL2 and VH2 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein, and VL3 and VH3 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein.
  • In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein, VL2 and VH2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein, and VL3 and VH3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein. In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 described herein, VL2 and VH2 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein, and VL3 and VH3 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein.
  • In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein, VL2 and VH2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein, and VL3 and VH3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein. In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein, VL2 and VH2 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein, and VL3 and VH3 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 described herein.
  • In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein, VL2 and VH2 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD3 described herein, and VL3 and VH3 are light and heavy chain variable domains comprising a light and heavy chain variable sequence of antibody CD28 or CD28_2 described herein. In some embodiments, VL1 and VH1 are light and heavy chain variable domains comprising the six CDRs of antibody CD4BS “a”, CD4BS “b”, MPER, MPER_100W, V1/V2 directed “a”, V1/V2 directed “b”, or V3 directed described herein, VL2 and VH2 are light and heavy chain variable domains comprising the six CDRs of antibody CD3 or CD28_2 described herein, and VL3 and V H3 are light and heavy chain variable domains comprising the six CDRs of antibody CD28 or CD28_2 described herein.
  • Target Proteins
  • In one embodiment, the binding proteins specifically bind to one or more HIV target proteins. In some embodiments, the binding proteins are trispecific and specifically bind to MPER of the HIV-1 gp41 protein, a CD4 binding site of the HIV-1 gp120 protein, a glycan in the V3 loop of the HIV-1 gp120 protein, a trimer apex of the HIV-1 gp120 protein or gp160. In other embodiments, the binding proteins specifically bind to one or more HIV target proteins and one or more target proteins on a T-cell including T cell receptor complex. These T-cell engager binding proteins are capable of recruiting T cells transiently to target cells and, at the same time, activating the cytolytic activity of the T cells. The T-cell engager trispecific antibodies can be used to activate HIV-1 reservoirs and redirect/activate T cells to lyse latently infected HIV-1+ T cells. Examples of target proteins on T cells include but are not limited to CD3 and CD28, among others. In some embodiments, the trispecific binding proteins may be generated by combining the antigen binding domains of two or more monospecific antibodies (parent antibodies) into one antibody. See International Publication Nos. WO 2011/038290 A2, WO 2013/086533 A1, WO 2013/070776 A1, WO 2012/154312 A1, and WO 2013/163427 A1, which are hereby incorporated into this disclosure by reference. The binding proteins of the disclosure may be prepared using domains or sequences obtained or derived from any human or non-human antibody, including, for example, human, murine, or humanized antibodies.
  • In some embodiments of the disclosure, the trivalent binding protein is capable of binding three different antigen targets. In one embodiment, the binding protein is trispecific and one light chain-heavy chain pair is capable of binding two different antigen targets or epitopes and one light chain-heavy chain pair is capable of binding one antigen target or epitope. In another embodiment, the binding protein is capable of binding three different HIV antigen targets that are located on the HIV envelope glycoprotein structure composed of gp120 and gp41 subunits. In other embodiments, the binding protein is capable of inhibiting the function of one or more of the antigen targets.
  • In some embodiments, a binding protein of the present disclosure binds one or more HIV target proteins. In some embodiments, the binding protein is capable of specifically binding three different epitopes on a single HIV target protein. In some embodiments, the binding protein is capable of binding two different epitopes on a first HIV target protein, and one epitope on a second HIV target protein. In some embodiments, the first and second HIV target proteins are different. In some embodiments, the binding protein is capable of specifically binding three different HIV target protein. In some embodiments, the one or more HIV target proteins are one or more of glycoprotein 120, glycoprotein 41, and glycoprotein 160.
  • In some embodiments, a binding protein of the present disclosure binds one or more HIV target proteins and one or more T cell target proteins. In some embodiments, the binding protein is capable of specifically binding one HIV target protein and two different epitopes on a single T cell target protein. In some embodiments, the binding protein is capable of specifically binding one HIV target protein and two different T cell target proteins (e.g., CD28 and CD3). In some embodiments, the binding protein is capable of specifically binding one T cell target protein and two different epitopes on a single HIV target protein. In some embodiments, the binding protein is capable of specifically binding one T cell target protein and two different HIV target proteins. In some embodiments, the first and second polypeptide chains of the binding protein form two antigen binding sites that specifically target two T cell target proteins, and the third and fourth polypeptide chains of the binding protein form an antigen binding site that specifically binds an HIV target protein. In some embodiments, the one or more HIV target proteins are one or more of glycoprotein 120, glycoprotein 41, and glycoprotein 160. In some embodiments, the one or more T cell target proteins are one or more of CD3 and CD28.
  • Linkers
  • In some embodiments, the linkers L1, L2, L3, and L4 range from no amino acids (length=0) to about 100 amino acids long, or less than 100, 50, 40, 30, 20, or 15 amino acids or less. The linkers can also be 10, 9, 8, 7, 6, 5, 4, 3, 2, or 1 amino acids long. L1, L2, L3, and L4 in one binding protein may all have the same amino acid sequence or may all have different amino acid sequences.
  • Examples of suitable linkers include a single glycine (Gly) residue; a diglycine peptide (Gly-Gly); a tripeptide (Gly-Gly-Gly); a peptide with four glycine residues (Gly-Gly-Gly-Gly; SEQ ID NO: 285); a peptide with five glycine residues (Gly-Gly-Gly-Gly-Gly; SEQ ID NO: 286); a peptide with six glycine residues (Gly-Gly-Gly-Gly-Gly-Gly; SEQ ID NO: 287); a peptide with seven glycine residues (Gly-Gly-Gly-Gly-Gly-Gly-Gly; SEQ ID NO: 288); a peptide with eight glycine residues (Gly-Gly-Gly-Gly-Gly-Gly-Gly-Gly; SEQ ID NO: 289). Other combinations of amino acid residues may be used such as the peptide Gly-Gly-Gly-Gly-Ser (SEQ ID NO: 290), the peptide Gly-Gly-Gly-Gly-Ser-Gly-Gly-Gly-Gly-Ser (SEQ ID NO: 291) and the peptide Gly-Gly-Gly-Gly-Ser-Gly-Gly-Gly-Gly-Ser-Gly-Gly-Gly-Gly-Ser (SEQ ID NO: 292). Other suitable linkers include a single Ser, and Val residue; the dipeptide Arg-Thr, Gln-Pro, Ser-Ser, Thr-Lys, and Ser-Leu; Thr-Lys-Gly-Pro-Ser (SEQ ID NO: 293), Thr-Val-Ala-Ala-Pro (SEQ ID NO: 294), Gln-Pro-Lys-Ala-Ala (SEQ ID NO: 295), Gln-Arg-Ile-Glu-Gly (SEQ ID NO: 296); Ala-Ser-Thr-Lys-Gly-Pro-Ser (SEQ ID NO: 297), Arg-Thr-Val-Ala-Ala-Pro-Ser (SEQ ID NO: 298), Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299), and His-Ile-Asp-Ser-Pro-Asn-Lys (SEQ ID NO: 300). The examples listed above are not intended to limit the scope of the disclosure in any way, and linkers comprising randomly selected amino acids selected from the group consisting of valine, leucine, isoleucine, serine, threonine, lysine, arginine, histidine, aspartate, glutamate, asparagine, glutamine, glycine, and proline have been shown to be suitable in the binding proteins.
  • The identity and sequence of amino acid residues in the linker may vary depending on the type of secondary structural element necessary to achieve in the linker. For example, glycine, serine, and alanine are best for linkers having maximum flexibility. Some combination of glycine, proline, threonine, and serine are useful if a more rigid and extended linker is necessary. Any amino acid residue may be considered as a linker in combination with other amino acid residues to construct larger peptide linkers as necessary depending on the desired properties.
  • In some embodiments, the length of L1 is at least twice the length of L3. In some embodiments, the length of L2 is at least twice the length of L4. In some embodiments, the length of L1 is at least twice the length of L3, and the length of L2 is at least twice the length of L4. In some embodiments, L1 is 3 to 12 amino acid residues in length, L2 is 3 to 14 amino acid residues in length, L3 is 1 to 8 amino acid residues in length, and L4 is 1 to 3 amino acid residues in length. In some embodiments, L1 is 5 to 10 amino acid residues in length, L2 is 5 to 8 amino acid residues in length, L3 is 1 to 5 amino acid residues in length, and L4 is 1 to 2 amino acid residues in length. In some embodiments, L1 is 7 amino acid residues in length, L2 is 5 amino acid residues in length, L3 is 1 amino acid residue in length, and L4 is 2 amino acid residues in length.
  • In some embodiments, L1, L2, L3, and/or L4 comprise the sequence Asp-Lys-Thr-His-Thr (SEQ ID NO: 525). In some embodiments, L1 comprises the sequence Asp-Lys-Thr-His-Thr (SEQ ID NO: 525). In some embodiments, L3 comprises the sequence Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • In some embodiments, L1, L2, L3, and/or L4 comprise the sequence Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299). In some embodiments, L1 comprises the sequence Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299). In some embodiments, L1 comprises the sequence Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299), L2 comprises the sequence Thr-Lys-Gly-Pro-Ser-Arg (SEQ ID NO: 526), L3 comprises the sequence Ser, and L4 comprises the sequence Arg-Thr. In some embodiments, L3 comprises the sequence Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299). In some embodiments, L1 comprises the sequence Ser, L2 comprises the sequence Arg-Thr, L3 comprises the sequence Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299) and L4 comprises the sequence Thr-Lys-Gly-Pro-Ser-Arg (SEQ ID NO: 526).
  • Fc Regions and Constant Domains
  • In some embodiments, a binding protein of the present disclosure comprises a second polypeptide chain further comprising an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains. In some embodiments, a binding protein of the present disclosure comprises a third polypeptide chain further comprising an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains. In some embodiments, a binding protein of the present disclosure comprises a second polypeptide chain further comprising an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and a third polypeptide chain further comprising an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
  • To improve the yields of the binding proteins, in some embodiments, the CH3 domains can be altered by the “knob-into-holes” technology which is described in detail with several examples in, for example, International Publication No. WO 96/027011, Ridgway et al., 1996, Protein Eng. 9: 617-21; and Merchant et al., 1998, Nat. Biotechnol. 16: 677-81. Specifically, the interaction surfaces of the two CH3 domains are altered to increase the heterodimerisation of both heavy chains containing these two CH3 domains. Each of the two CH3 domains (of the two heavy chains) can be the “knob,” while the other is the “hole.” The introduction of a disulfide bridge further stabilizes the heterodimers (Merchant et al., 1998; Atwell et al., 1997, J. Mol. Biol. 270: 26-35) and increases the yield. In particular embodiments, the knob is on the second pair of polypeptides with a single variable domain. In other embodiments, the knob is on the first pair of polypeptides having the cross-over orientation. In yet other embodiments, the CH3 domains do not include a knob in hole.
  • In some embodiments, a binding protein of the present disclosure comprises a “knob” mutation on the second polypeptide chain and a “hole” mutation on the third polypeptide chain. In some embodiments, a binding protein of the present disclosure comprises a “knob” mutation on the third polypeptide chain and a “hole” mutation on the second polypeptide chain. In some embodiments, the “knob” mutation comprises substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index. In some embodiments, the amino acid substitutions are S354C and T366W. In some embodiments, the “hole” mutation comprises substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index. In some embodiments, the amino acid substitutions are Y349C, T366S, L368A, and Y407V. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V. In some embodiments, the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • In some embodiments, a binding protein of the present disclosure comprises one or more mutations to improve serum half-life (See e.g., Hinton, P. R. et al. (2006) J. Immunol. 176(1):346-56). In some embodiments, the mutation comprises substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S. In some embodiments, the binding protein comprises a second polypeptide chain further comprising a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and a third polypeptide chain further comprising a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S. In some embodiments, a binding protein of the present disclosure comprises knob and hole mutations and one or more mutations to improve serum half-life.
  • In some embodiments, CH1, CH2, CH3 and CL of the trispecific binding proteins described herein may comprise any of CH1, CH2, CH3 and CL sequences of binding proteins 1-53.
  • Nucleic Acids
  • Standard recombinant DNA methodologies are used to construct the polynucleotides that encode the polypeptides which form the binding proteins, incorporate these polynucleotides into recombinant expression vectors, and introduce such vectors into host cells. See e.g., Sambrook et al., 2001, MOLECULAR CLONING: A LABORATORY MANUAL (Cold Spring Harbor Laboratory Press, 3rd ed.). Enzymatic reactions and purification techniques may be performed according to manufacturer's specifications, as commonly accomplished in the art, or as described herein. Unless specific definitions are provided, the nomenclature utilized in connection with, and the laboratory procedures and techniques of, analytical chemistry, synthetic organic chemistry, and medicinal and pharmaceutical chemistry described herein are those well-known and commonly used in the art. Similarly, conventional techniques may be used for chemical syntheses, chemical analyses, pharmaceutical preparation, formulation, delivery, and treatment of patients.
  • Other aspects of the present disclosure relate to isolated nucleic acid molecules comprising a nucleotide sequence encoding any of the binding proteins described herein. In some embodiments, the isolated nucleic acid is operably linked to a heterologous promoter to direct transcription of the binding protein-coding nucleic acid sequence. A promoter may refer to nucleic acid control sequences which direct transcription of a nucleic acid. A first nucleic acid sequence is operably linked to a second nucleic acid sequence when the first nucleic acid sequence is placed in a functional relationship with the second nucleic acid sequence. For instance, a promoter is operably linked to a coding sequence of a binding protein if the promoter affects the transcription or expression of the coding sequence. Examples of promoters may include, but are not limited to, promoters obtained from the genomes of viruses (such as polyoma virus, fowlpox virus, adenovirus (such as Adenovirus 2), bovine papilloma virus, avian sarcoma virus, cytomegalovirus, a retrovirus, hepatitis-B virus, Simian Virus 40 (SV40), and the like), from heterologous eukaryotic promoters (such as the actin promoter, an immunoglobulin promoter, from heat-shock promoters, and the like), the CAG-promoter (Niwa et al., Gene 108(2): 193-9, 1991), the phosphoglycerate kinase (PGK)-promoter, a tetracycline-inducible promoter (Masui et al., Nucleic Acids Res. 33:e43, 2005), the lac system, the trp system, the tac system, the trc system, major operator and promoter regions of phage lambda, the promoter for 3-phosphoglycerate kinase, the promoters of yeast acid phosphatase, and the promoter of the yeast alpha-mating factors. Polynucleotides encoding binding proteins of the present disclosure may be under the control of a constitutive promoter, an inducible promoter, or any other suitable promoter described herein or other suitable promoter that will be readily recognized by one skilled in the art.
  • In some embodiments, the isolated nucleic acid is incorporated into a vector. In some embodiments, the vector is an expression vector. Expression vectors may include one or more regulatory sequences operatively linked to the polynucleotide to be expressed. The term “regulatory sequence” includes promoters, enhancers and other expression control elements (e.g., polyadenylation signals). Examples of suitable enhancers may include, but are not limited to, enhancer sequences from mammalian genes (such as globin, elastase, albumin, α-fetoprotein, insulin and the like), and enhancer sequences from a eukaryotic cell virus (such as SV40 enhancer on the late side of the replication origin (bp 100-270), the cytomegalovirus early promoter enhancer, the polyoma enhancer on the late side of the replication origin, adenovirus enhancers, and the like). Examples of suitable vectors may include, for example, plasmids, cosmids, episomes, transposons, and viral vectors (e.g., adenoviral, vaccinia viral, Sindbis-viral, measles, herpes viral, lentiviral, retroviral, adeno-associated viral vectors, etc.). Expression vectors can be used to transfect host cells, such as, for example, bacterial cells, yeast cells, insect cells, and mammalian cells. Biologically functional viral and plasmid DNA vectors capable of expression and replication in a host are known in the art, and can be used to transfect any cell of interest.
  • Other aspects of the present disclosure relate to a vector system comprising one or more vectors encoding a first, second, third, and fourth polypeptide chain of any of the binding proteins described herein. In some embodiments, the vector system comprises a first vector encoding the first polypeptide chain of the binding protein, a second vector encoding the second polypeptide chain of the binding protein, a third vector encoding the third polypeptide chain of the binding protein, and a fourth vector encoding the fourth polypeptide chain of the binding protein. In some embodiments, the vector system comprises a first vector encoding the first and second polypeptide chains of the binding protein, and a second vector encoding the third and fourth polypeptide chains of the binding protein. In some embodiments, the vector system comprises a first vector encoding the first and third polypeptide chains of the binding protein, and a second vector encoding the second and fourth polypeptide chains of the binding protein. In some embodiments, the vector system comprises a first vector encoding the first and fourth polypeptide chains of the binding protein, and a second vector encoding the second and third polypeptide chains of the binding protein. In some embodiments, the vector system comprises a first vector encoding the first, second, third, and fourth polypeptide chains of the binding protein. The one or more vectors of the vector system may be any of the vectors described herein. In some embodiments, the one or more vectors are expression vectors.
  • Host Cells
  • Other aspects of the present disclosure relate to a host cell (e.g., an isolated host cell) comprising one or more isolated polynucleotides, vectors, and/or vector systems described herein. In some embodiments, an isolated host cell of the present disclosure is cultured in vitro. In some embodiments, the host cell is a bacterial cell (e.g., an E. coli cell). In some embodiments, the host cell is a yeast cell (e.g., an S. cerevisiae cell). In some embodiments, the host cell is an insect cell. Examples of insect host cells may include, for example, Drosophila cells (e.g., S2 cells), Trichoplusia ni cells (e.g., High Five™ cells), and Spodoptera frugiperda cells (e.g., Sf21 or Sf9 cells). In some embodiments, the host cell is a mammalian cell. Examples of mammalian host cells may include, for example, human embryonic kidney cells (e.g., 293 or 293 cells subcloned for growth in suspension culture), Expi293™ cells, CHO cells, baby hamster kidney cells (e.g., BHK, ATCC CCL 10), mouse sertoli cells (e.g., TM4 cells), monkey kidney cells (e.g., CV1 ATCC CCL 70), African green monkey kidney cells (e.g., VERO-76, ATCC CRL-1587), human cervical carcinoma cells (e.g., HELA, ATCC CCL 2), canine kidney cells (e.g., MDCK, ATCC CCL 34), buffalo rat liver cells (e.g., BRL 3A, ATCC CRL 1442), human lung cells (e.g., W138, ATCC CCL 75), human liver cells (e.g., Hep G2, HB 8065), mouse mammary tumor cells (e.g., MMT 060562, ATCC CCL51), TRI cells, MRC 5 cells, FS4 cells, a human hepatoma line (e.g., Hep G2), and myeloma cells (e.g., NS0 and Sp2/0 cells).
  • Other aspects of the present disclosure relate to a method of producing any of the binding proteins described herein. In some embodiments, the method includes a) culturing a host cell (e.g., any of the host cells described herein) comprising an isolated nucleic acid, vector, and/or vector system (e.g., any of the isolated nucleic acids, vectors, and/or vector systems described herein) under conditions such that the host cell expresses the binding protein; and b) isolating the binding protein from the host cell. Methods of culturing host cells under conditions to express a protein are well known to one of ordinary skill in the art. Methods of isolating proteins from cultured host cells are well known to one of ordinary skill in the art, including, for example, by affinity chromatography (e.g., two step affinity chromatography comprising protein A affinity chromatography followed by size exclusion chromatography).
  • Use for Binding Proteins
  • The binding proteins can be employed in any known assay method, such as competitive binding assays, direct and indirect sandwich assays, and immunoprecipitation assays for the detection and quantitation of one or more target antigens. The binding proteins will bind the one or more target antigens with an affinity that is appropriate for the assay method being employed.
  • For diagnostic applications, in certain embodiments, binding proteins can be labeled with a detectable moiety. The detectable moiety can be any one that is capable of producing, either directly or indirectly, a detectable signal. For example, the detectable moiety can be a radioisotope, such as 3H, 14C, 32P, 35S, 125I, 99Tc, 111In, or 67Ga; a fluorescent or chemiluminescent compound, such as fluorescein isothiocyanate, rhodamine, or luciferin; or an enzyme, such as alkaline phosphatase, β-galactosidase, or horseradish peroxidase.
  • The binding proteins are also useful for in vivo imaging. A binding protein labeled with a detectable moiety can be administered to an animal, e.g., into the bloodstream, and the presence and location of the labeled antibody in the host assayed. The binding protein can be labeled with any moiety that is detectable in an animal, whether by nuclear magnetic resonance, radiology, or other detection means known in the art.
  • The disclosure also relates to a kit comprising a binding protein and other reagents useful for detecting target antigen levels in biological samples. Such reagents can include a detectable label, blocking serum, positive and negative control samples, and detection reagents. In some embodiments, the kit comprises a composition comprising any binding protein, polynucleotide, vector, vector system, and/or host cell described herein. In some embodiments, the kit comprises a container and a label or package insert on or associated with the container. Suitable containers include, for example, bottles, vials, syringes, IV solution bags, etc. The containers may be formed from a variety of materials such as glass or plastic. The container holds a composition which is by itself or combined with another composition effective for treating, preventing and/or diagnosing a condition (e.g., HIV infection) and may have a sterile access port (for example the container may be an intravenous solution bag or a vial having a stopper pierceable by a hypodermic injection needle). In some embodiments, the label or package insert indicates that the composition is used for preventing, diagnosing, and/or treating the condition of choice. Alternatively, or additionally, the article of manufacture or kit may further comprise a second (or third) container comprising a pharmaceutically-acceptable buffer, such as bacteriostatic water for injection (BWFI), phosphate-buffered saline, Ringer's solution and dextrose solution. It may further include other materials desirable from a commercial and user standpoint, including other buffers, diluents, filters, needles, and syringes.
  • Therapeutic or pharmaceutical compositions comprising binding proteins are within the scope of the disclosure. Such therapeutic or pharmaceutical compositions can comprise a therapeutically effective amount of a binding protein, or binding protein-drug conjugate, in admixture with a pharmaceutically or physiologically acceptable formulation agent selected for suitability with the mode of administration.
  • Acceptable formulation materials are nontoxic to recipients at the dosages and concentrations employed.
  • The pharmaceutical composition can contain formulation materials for modifying, maintaining, or preserving, for example, the pH, osmolarity, viscosity, clarity, color, isotonicity, odor, sterility, stability, rate of dissolution or release, adsorption, or penetration of the composition. Suitable formulation materials include, but are not limited to, amino acids (such as glycine, glutamine, asparagine, arginine, or lysine), antimicrobials, antioxidants (such as ascorbic acid, sodium sulfite, or sodium hydrogen-sulfite), buffers (such as borate, bicarbonate, Tris-HCl, citrates, phosphates, or other organic acids), bulking agents (such as mannitol or glycine), chelating agents (such as ethylenediamine tetraacetic acid (EDTA)), complexing agents (such as caffeine, polyvinylpyrrolidone, beta-cyclodextrin, or hydroxypropyl-beta-cyclodextrin), fillers, monosaccharides, disaccharides, and other carbohydrates (such as glucose, mannose, or dextrins), proteins (such as serum albumin, gelatin, or immunoglobulins), coloring, flavoring and diluting agents, emulsifying agents, hydrophilic polymers (such as polyvinylpyrrolidone), low molecular weight polypeptides, salt-forming counterions (such as sodium), preservatives (such as benzalkonium chloride, benzoic acid, salicylic acid, thimerosal, phenethyl alcohol, methylparaben, propylparaben, chlorhexidine, sorbic acid, or hydrogen peroxide), solvents (such as glycerin, propylene glycol, or polyethylene glycol), sugar alcohols (such as mannitol or sorbitol), suspending agents, surfactants or wetting agents (such as pluronics; PEG; sorbitan esters; polysorbates such as polysorbate 20 or polysorbate 80; triton; tromethamine; lecithin; cholesterol or tyloxapal), stability enhancing agents (such as sucrose or sorbitol), tonicity enhancing agents (such as alkali metal halides—e.g., sodium or potassium chloride—or mannitol sorbitol), delivery vehicles, diluents, excipients and/or pharmaceutical adjuvants (see, e.g., REMINGTON'S PHARMACEUTICAL SCIENCES (18th Ed., A. R. Gennaro, ed., Mack Publishing Company 1990), and subsequent editions of the same, incorporated herein by reference for any purpose).
  • The optimal pharmaceutical composition will be determined by a skilled artisan depending upon, for example, the intended route of administration, delivery format, and desired dosage. Such compositions can influence the physical state, stability, rate of in vivo release, and rate of in vivo clearance of the binding protein.
  • The primary vehicle or carrier in a pharmaceutical composition can be either aqueous or non-aqueous in nature. For example, a suitable vehicle or carrier for injection can be water, physiological saline solution, or artificial cerebrospinal fluid, possibly supplemented with other materials common in compositions for parenteral administration. Neutral buffered saline or saline mixed with serum albumin are further exemplary vehicles. Other exemplary pharmaceutical compositions comprise Tris buffer of about pH 7.0-8.5, or acetate buffer of about pH 4.0-5.5, which can further include sorbitol or a suitable substitute. In one embodiment of the disclosure, binding protein compositions can be prepared for storage by mixing the selected composition having the desired degree of purity with optional formulation agents in the form of a lyophilized cake or an aqueous solution. Further, the binding protein can be formulated as a lyophilizate using appropriate excipients such as sucrose.
  • The pharmaceutical compositions of the disclosure can be selected for parenteral delivery or subcutaneous. Alternatively, the compositions can be selected for inhalation or for delivery through the digestive tract, such as orally. The preparation of such pharmaceutically acceptable compositions is within the skill of the art.
  • The formulation components are present in concentrations that are acceptable to the site of administration. For example, buffers are used to maintain the composition at physiological pH or at a slightly lower pH, typically within a pH range of from about 5 to about 8.
  • When parenteral administration is contemplated, the therapeutic compositions for use can be in the form of a pyrogen-free, parenterally acceptable, aqueous solution comprising the desired binding protein in a pharmaceutically acceptable vehicle. A particularly suitable vehicle for parenteral injection is sterile distilled water in which a binding protein is formulated as a sterile, isotonic solution, properly preserved. Yet another preparation can involve the formulation of the desired molecule with an agent, such as injectable microspheres, bio-erodible particles, polymeric compounds (such as polylactic acid or polyglycolic acid), beads, or liposomes, that provides for the controlled or sustained release of the product which can then be delivered via a depot injection. Hyaluronic acid can also be used, and this can have the effect of promoting sustained duration in the circulation. Other suitable means for the introduction of the desired molecule include implantable drug delivery devices.
  • In one embodiment, a pharmaceutical composition can be formulated for inhalation. For example, a binding protein can be formulated as a dry powder for inhalation. Binding protein inhalation solutions can also be formulated with a propellant for aerosol delivery. In yet another embodiment, solutions can be nebulized.
  • It is also contemplated that certain formulations can be administered orally. In one embodiment of the disclosure, binding proteins that are administered in this fashion can be formulated with or without those carriers customarily used in the compounding of solid dosage forms such as tablets and capsules. For example, a capsule can be designed to release the active portion of the formulation at the point in the gastrointestinal tract where bioavailability is maximized and pre-systemic degradation is minimized. Additional agents can be included to facilitate absorption of the binding protein. Diluents, flavorings, low melting point waxes, vegetable oils, lubricants, suspending agents, tablet disintegrating agents, and binders can also be employed.
  • Another pharmaceutical composition can involve an effective quantity of binding proteins in a mixture with non-toxic excipients that are suitable for the manufacture of tablets. By dissolving the tablets in sterile water, or another appropriate vehicle, solutions can be prepared in unit-dose form. Suitable excipients include, but are not limited to, inert diluents, such as calcium carbonate, sodium carbonate or bicarbonate, lactose, or calcium phosphate; or binding agents, such as starch, gelatin, or acacia; or lubricating agents such as magnesium stearate, stearic acid, or talc.
  • Additional pharmaceutical compositions of the disclosure will be evident to those skilled in the art, including formulations involving binding proteins in sustained- or controlled-delivery formulations. Techniques for formulating a variety of other sustained- or controlled-delivery means, such as liposome carriers, bio-erodible microparticles or porous beads and depot injections, are also known to those skilled in the art. Additional examples of sustained-release preparations include semipermeable polymer matrices in the form of shaped articles, e.g. films, or microcapsules. Sustained release matrices can include polyesters, hydrogels, polylactides, copolymers of L-glutamic acid and gamma ethyl-L-glutamate, poly(2-hydroxyethyl-methacrylate), ethylene vinyl acetate, or poly-D(−)-3-hydroxybutyric acid. Sustained-release compositions can also include liposomes, which can be prepared by any of several methods known in the art.
  • Pharmaceutical compositions to be used for in vivo administration typically must be sterile. This can be accomplished by filtration through sterile filtration membranes. Where the composition is lyophilized, sterilization using this method can be conducted either prior to, or following, lyophilization and reconstitution. The composition for parenteral administration can be stored in lyophilized form or in a solution. In addition, parenteral compositions generally are placed into a container having a sterile access port, for example, an intravenous solution bag or vial having a stopper pierceable by a hypodermic injection needle.
  • Once the pharmaceutical composition has been formulated, it can be stored in sterile vials as a solution, suspension, gel, emulsion, solid, or as a dehydrated or lyophilized powder. Such formulations can be stored either in a ready-to-use form or in a form (e.g., lyophilized) requiring reconstitution prior to administration.
  • The disclosure also encompasses kits for producing a single-dose administration unit. The kits can each contain both a first container having a dried protein and a second container having an aqueous formulation. Also included within the scope of this disclosure are kits containing single and multi-chambered pre-filled syringes (e.g., liquid syringes and lyosyringes).
  • The effective amount of a binding protein pharmaceutical composition to be employed therapeutically will depend, for example, upon the therapeutic context and objectives. One skilled in the art will appreciate that the appropriate dosage levels for treatment will thus vary depending, in part, upon the molecule delivered, the indication for which the binding protein is being used, the route of administration, and the size (body weight, body surface, or organ size) and condition (the age and general health) of the patient. Accordingly, the clinician can titer the dosage and modify the route of administration to obtain the optimal therapeutic effect.
  • Dosing frequency will depend upon the pharmacokinetic parameters of the binding protein in the formulation being used. Typically, a clinician will administer the composition until a dosage is reached that achieves the desired effect. The composition can therefore be administered as a single dose, as two or more doses (which may or may not contain the same amount of the desired molecule) over time, or as a continuous infusion via an implantation device or catheter. Further refinement of the appropriate dosage is routinely made by those of ordinary skill in the art and is within the ambit of tasks routinely performed by them. Appropriate dosages can be ascertained through use of appropriate dose-response data.
  • The route of administration of the pharmaceutical composition is in accord with known methods, e.g., orally; through injection by intravenous, intraperitoneal, intracerebral (intraparenchymal), intracerebroventricular, intramuscular, intraocular, intraarterial, intraportal, or intralesional routes; by sustained release systems; or by implantation devices. Where desired, the compositions can be administered by bolus injection or continuously by infusion, or by implantation device.
  • The composition can also be administered locally via implantation of a membrane, sponge, or other appropriate material onto which the desired molecule has been absorbed or encapsulated. Where an implantation device is used, the device can be implanted into any suitable tissue or organ, and delivery of the desired molecule can be via diffusion, timed-release bolus, or continuous administration.
  • The pharmaceutical compositions can be used to prevent and/or treat HIV infection. The pharmaceutical compositions can be used as a standalone therapy or in combination with standard anti-retroviral therapy.
  • In some embodiments, the present disclosure relates to a method of preventing and/or treating HIV infection in a patient. In some embodiments, the method comprises administering to the patient a therapeutically effective amount of at least one of the binding proteins described herein. In some embodiments, the at least one binding protein is administered in combination with an anti-retroviral therapy (e.g., an anti-HIV therapy). In some embodiments, the at least one binding protein is administered before the anti-retroviral therapy. In some embodiments, the at least one binding protein is administered concurrently with the anti-retroviral therapy. In some embodiments, the at least one binding protein is administered after the anti-retroviral therapy. In some embodiments, the at least one binding protein is co-administered with any standard anti-retroviral therapy known in the art. In some embodiments, administration of the at least one binding protein results in neutralization of one or more HIV virions. In some embodiments, administration of the at least one binding protein results in elimination of one or more latently and/or chronically HIV-infected cells in the patient. In some embodiments, administration of the at least one binding protein results in neutralization of one or more HIV virions and results in elimination of one or more latently and/or chronically HIV-infected cells in the patient. In some embodiments, the patient is a human.
  • Without limiting the present disclosure, a number of embodiments of the present disclosure are described below for purpose of illustration.
  • Item 1: A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3, and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • Item 2: A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is an immunoglobulin CH1 heavy chain constant domain;
    CH2 is an immunoglobulin CH2 heavy chain constant domain;
    CH3 is an immunoglobulin CH3 heavy chain constant domain;
    hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
    L1, L2, L3 and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • Item 3: The binding protein of item 1 or item 2, wherein the one or more HIV target proteins is selected from the group consisting of glycoprotein 120, glycoprotein 41 and glycoprotein 60.
  • Item 4: The binding protein of item 1 or item 2, wherein the binding protein is trispecific and capable of specifically binding three different epitopes on a single HIV target protein.
  • Item 5: The binding protein of item 1 or item 2, wherein the binding protein is trispecific and capable of specifically binding two different epitopes on a first HIV target protein, and one epitope on a second HIV target protein, wherein the first and second HIV target proteins are different.
  • Item 6: The binding protein of item 1 or item 2, wherein the binding protein is trispecific and capable of specifically binding three different antigen targets.
  • Item 7: The binding protein of item 1 or item 2, wherein the binding protein is capable of inhibiting the function of one or more HIV target proteins.
  • Item 8: The binding protein of any one of items 1-7, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
  • Item 9: The binding protein of any one of items 1-7, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • Item 10: The binding protein of any one of items 1-9, wherein VL1 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • Item 11: The binding protein of any one of items 1-10, wherein VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
  • Item 12: The binding protein of any one of items 1-10, wherein VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • Item 13: The binding protein of any one of items 1-12, wherein VL2 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • Item 14: The binding protein of any one of items 1-13, wherein VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
  • Item 15: The binding protein of any one of items 1-13, wherein VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • Item 16: The binding protein of any one of items 1-15, wherein VL3 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
  • Item 17: The binding protein of any one of items 1-16, wherein VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
  • Item 18: The binding protein of any one of items 1-16, wherein VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • Item 19: The binding protein of any one of items 1-18, wherein VH1 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • Item 20: The binding protein of any one of items 1-19, wherein VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively, a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
  • Item 21: The binding protein of any one of items 1-19, wherein VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • Item 22: The binding protein of any one of items 1-21, wherein VH2 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • Item 23: The binding protein of any one of items 1-22, wherein VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
  • Item 24: The binding protein of any one of items 1-22, wherein VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • Item 25: The binding protein of any one of items 1-24, wherein VH3 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
  • Item 26: The binding protein of any one of items 1-25, wherein VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 266, a CDR-L2 comprising the sequence of SEQ ID NO: 267, and a CDR-L3 comprising the sequence of SEQ ID NO: 268; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a CDR-H3 comprising the sequence of SEQ ID NO: 256; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 257, a CDR-H2 comprising the sequence of SEQ ID NO: 258, and a CDR-H3 comprising the sequence of SEQ ID NO: 259; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 248, a CDR-H2 comprising the sequence of SEQ ID NO: 497, and a CDR-H3 comprising the sequence of SEQ ID NO: 250.
  • Item 27: The binding protein of any one of items 1-25, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 512; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504, VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 502.
  • Item 28: The binding protein of any one of items 1-27, wherein VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 512; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 502.
  • Item 29: The binding protein of any one of items 1-25, wherein VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a CDR-H3 comprising the sequence of SEQ ID NO: 256; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 257, a CDR-H2 comprising the sequence of SEQ ID NO: 258, and a CDR-H3 comprising the sequence of SEQ ID NO: 259; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253.
  • Item 30: The binding protein of any one of items 1-25, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503.
  • Item 31: The binding protein of any one of items 1-25 and 29-30, wherein VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
  • Item 32: The binding protein of any one of items 1-25, wherein VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 257, a CDR-H2 comprising the sequence of SEQ ID NO: 258, and a CDR-H3 comprising the sequence of SEQ ID NO: 259; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a CDR-H3 comprising the sequence of SEQ ID NO: 256; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253.
  • Item 33: The binding protein of any one of items 1-25, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503.
  • Item 34: The binding protein of any one of items 1-25 and 32-33, wherein VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
  • Item 35: The binding protein of item 1, wherein the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
  • Item 36: The binding protein of item 1, wherein the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
  • Item 37: The binding protein of item 1, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 38: The binding protein of item 1, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 39: The binding protein of any one of items 1, 37, and 38, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 40: The binding protein of item 2, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 41: The binding protein of item 2, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 42: The binding protein of any one of items 2, 40, and 41, wherein the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 43: The binding protein of item 1 or item 2, wherein at least one of L1, L2, L3, or L4 is independently 0 amino acids in length.
  • Item 44: The binding protein of item 1 or item 2, wherein L1, L2, L3, or L4 are each independently at least one amino acid in length.
  • Item 45: The binding protein of any one of items 1-44, wherein L1 comprises Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • Item 46: A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3, and L4 are amino acid linkers;
    wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
    wherein:
  • (a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
  • (b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283; and
  • wherein:
  • (a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or
  • (b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
  • Item 47: A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain;
    CH2 is an immunoglobulin CH2 heavy chain constant domain;
    CH3 is an immunoglobulin CH3 heavy chain constant domain;
    hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
    L1, L2, L3, and L4 are amino acid linkers;
    wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
    wherein:
  • (a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
  • (b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283; and
  • wherein:
  • (a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or
  • (b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
  • Item 48: The binding protein of item 46, wherein the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
  • Item 49: The binding protein of item 46, wherein the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
  • Item 50: The binding protein of item 46, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 51: The binding protein of item 46, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 52: The binding protein of any one of items 46, 50, and 51, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 53: The binding protein of item 47, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 54: The binding protein of item 47, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 55: The binding protein of any one of items 47, 53, and 54, wherein the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 56: The binding protein of item 46 or item 47, wherein at least one of L1, L2, L3 or L4 is independently 0 amino acids in length.
  • Item 57: The binding protein of item 46 or item 47, wherein L1, L2, L3 or L4 are each independently at least one amino acid in length.
  • Item 58: The binding protein of any one of items 46-57, wherein L1 comprises Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
  • Item 59: A binding protein comprising a first polypeptide chain, a second polypeptide chain, a third polypeptide chain and a fourth polypeptide chain wherein:
  • (a) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 4 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 4; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 3 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 3; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 1 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 1; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 2 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 2;
  • (b) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 12 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 12; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 11 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 11; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 9 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 9; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 10 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 10;
  • (c) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 20 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 20; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 19 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 19; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 17 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 17; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 18 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 18;
  • (d) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 28 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 28; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 27 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 27; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 25 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 25; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 26 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 26;
  • (e) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 36 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 36; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 35 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 35; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 33 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 33; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 34 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 34;
  • (f) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 44 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 44; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 43 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 43; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 41 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 41; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 42 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 42;
  • (g) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 52 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 52; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 51 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 51; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 49 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 49; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 50 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 50;
  • (h) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 60 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 60; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 59 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 59; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 57 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 57; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 58 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 58;
  • (i) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 68 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 68; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 67 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 67; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 65 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 65; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 66 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 66;
  • (j) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 76 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 76; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 75 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 75; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 73 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 73, and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 74 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 74;
  • (k) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 84 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 84; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 83 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 83; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 81 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 81; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 82 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 82;
  • (l) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 92 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:92; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 91 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 91; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 89 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 89; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 90 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 90;
  • (m) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 100 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 100; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 99 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 99; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 97 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 97; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 98 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 98;
  • (n) the first polypeptide comprises the amino acid sequence of SEQ ID NO: 108 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 108; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 107 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 107; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 105 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 105; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 106 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 106;
  • (o) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 116 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 116; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 115 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 115; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 113 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 113; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 114 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 114;
  • (p) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 124 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 124; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 123 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 123; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 121 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 121; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 122 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 122;
  • (q) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 132 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 132; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 131 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 131; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 129 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 129; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 130 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 130;
  • (r) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 140 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 140; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 139 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 139; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 137 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 137; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 138 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 138;
  • (s) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 148 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 148; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 147 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 147; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 145 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 145; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 146 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 146;
  • (t) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 156 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 156; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 155 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 155; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 153 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 153; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 154 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 154;
  • (u) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 164 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 164; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 163 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 163; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 161 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 161; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 162 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 162;
  • (v) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 172 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 172; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 171 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 171; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 169 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 169; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 170 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 170;
  • (w) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 180 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 180; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 179 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 179; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 177 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 177; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 178 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 178;
  • (x) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 188 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 188; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 187 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 187; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 185 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 185; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 186 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 186;
  • (y) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 196 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 196; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 195 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 195; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 193 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 193; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 194 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 194;
  • (z) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 204 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 204; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 203 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 203; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 201 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 201; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 202 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 202;
  • (aa) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 212 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 212; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 211 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 211; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 209 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 209; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 210 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 210;
  • (bb) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 220 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 220; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 219 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 219; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 217 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 217; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 218 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 218;
  • (cc) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 228 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 228; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 227 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 227; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 225 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 225; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 226 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 226;
  • (dd) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 235 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 235; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 234 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 234; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 232 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 232; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 233 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 233; or
  • (ee) first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 243 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 243; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 242 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 242; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 240 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 240; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 241 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 241.
  • Item 60: A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins and one or more T cell target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I];
  • a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II];
  • a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1  [III];
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV];
  • wherein
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3, and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • Item 61: A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins and one or more T cell target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I];
  • a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II];
  • a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3  [III];
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV];
  • wherein
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain;
    CH2 is an immunoglobulin CH2 heavy chain constant domain;
    CH3 is an immunoglobulin CH3 heavy chain constant domain;
    hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
    L1, L2, L3, and L4 are amino acid linkers;
    and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
  • Item 62: The binding protein of item 60 or item 61, wherein the one or more HIV target proteins are selected from the group consisting of glycoprotein 120, glycoprotein 41 and glycoprotein 160.
  • Item 63: The binding protein of item 60 or item 61, wherein the one or more T cell target proteins are CD3 or CD28.
  • Item 64: The binding protein of item 60 or item 61, wherein the binding protein is trispecific and capable of specifically binding an HIV target protein and two different epitopes on a single T cell target protein.
  • Item 65: The binding protein of item 60 or item 61, wherein the binding protein is trispecific and capable of specifically binding an HIV target protein and two different T cell target proteins.
  • Item 66: The binding protein of item 60 or item 61, wherein the binding protein is trispecific and capable of specifically binding a T cell target protein and two different epitopes on a single HIV target protein.
  • Item 67: The binding protein of item 60 or item 61, wherein the binding protein is trispecific and capable of specifically binding a T cell target protein and two different HIV target proteins.
  • Item 68: The binding protein of item 60 or item 61, wherein the first and second polypeptide chains form two antigen binding sites that specifically target two T cell target proteins, and the third and fourth polypeptide chains form an antigen binding site that specifically binds an HIV target protein.
  • Item 69: The binding protein of any one of items 60-68, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively.
  • Item 70: The binding protein of any one of items 60-68, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 71: The binding protein of any one of items 60-70, wherein VL1 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 72: The binding protein of any one of items 60-71, wherein VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively.
  • Item 73: The binding protein of any one of items 60-71, wherein VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 74: The binding protein of any one of items 60-73, wherein VL2 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 75: The binding protein of any one of items 60-74, wherein VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively.
  • Item 76: The binding protein of any one of items 60-74, wherein VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 77: The binding protein of any one of items 60-76, wherein VL3 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
  • Item 78: The binding protein of any one of items 60-77, wherein VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 486, and 487, respectively.
  • Item 79: The binding protein of any one of items 60-77, wherein VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • Item 80: The binding protein of any one of items 60-79, wherein VH1 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • Item 81: The binding protein of any one of items 60-80, wherein VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 486, and 487, respectively.
  • Item 82: The binding protein of any one of items 60-80, wherein VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • Item 83: The binding protein of any one of items 60-82, wherein VH2 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • Item 84: The binding protein of any one of items 60-83, wherein VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively, a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 486, and 487, respectively.
  • Item 85: The binding protein of any one of items 60-83, wherein VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • Item 86: The binding protein of any one of items 60-85, wherein VH3 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
  • Item 87: The binding protein of any one of items 60-86, wherein VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 488, a CDR-L2 comprising the sequence of SEQ ID NO: 489, and a CDR-L3 comprising the sequence of SEQ ID NO: 490; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 494, a CDR-L2 comprising the sequence of SEQ ID NO: 495, and a CDR-L3 comprising the sequence of SEQ ID NO: 496; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 479, a CDR-H2 comprising the sequence of SEQ ID NO: 480, and a CDR-H3 comprising the sequence of SEQ ID NO: 481; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 485, a CDR-H2 comprising the sequence of SEQ ID NO: 486, and a CDR-H3 comprising the sequence of SEQ ID NO: 487; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253.
  • Item 88: The binding protein of any one of items 60-86, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 522; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 524; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 509; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 511; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503.
  • Item 89: The binding protein of any one of items 60-88, wherein VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 522; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 524; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 509; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 511; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
  • Item 90: The binding protein of any one of items 60-86, wherein VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 494, a CDR-L2 comprising the sequence of SEQ ID NO: 495, and a CDR-L3 comprising the sequence of SEQ ID NO: 496; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 488, a CDR-L2 comprising the sequence of SEQ ID NO: 489, and a CDR-L3 comprising the sequence of SEQ ID NO: 490; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 485, a CDR-H2 comprising the sequence of SEQ ID NO: 486, and a CDR-H3 comprising the sequence of SEQ ID NO: 487; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 479, a CDR-H2 comprising the sequence of SEQ ID NO: 480, and a CDR-H3 comprising the sequence of SEQ ID NO: 481; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253.
  • Item 91: The binding protein of any one of items 60-86, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 524; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 522; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 511; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 509; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503.
  • Item 92: The binding protein of any one of items 60-86 and 90-91, wherein VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 524; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 522; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 511; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 509; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
  • Item 93: The binding protein of item 60, wherein the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
  • Item 94: The binding protein of item 60, wherein the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
  • Item 95: The binding protein of item 60, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 96: The binding protein of item 60, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 97: The binding protein of any one of items 60, 95, and 96, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 98: The binding protein of item 61, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 99: The binding protein of item 61, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 100: The binding protein of any one of items 61, 98, and 99, wherein the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 101: The binding protein of item 60 or item 61, wherein at least one of L1, L2, L3, or L4 is independently 0 amino acids in length.
  • Item 102: The binding protein of item 60 or item 61, wherein L1, L2, L3, or L4 are each independently at least one amino acid in length.
  • 1 Item 103: The binding protein of any one of items 60-102, wherein L1 is Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
  • Item 104: A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain; and
    L1, L2, L3, and L4 are amino acid linkers;
    wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
    wherein:
  • (a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
  • (b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
  • wherein:
  • (a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
  • (b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • Item 105: A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

  • VL2-L1-VL1-L2-CL  [I]
  • and a second polypeptide chain comprises a structure represented by the formula:

  • VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II]
  • and a third polypeptide chain comprises a structure represented by the formula:

  • VH3-CH1-hinge-CH2-CH3  [III]
  • and a fourth polypeptide chain comprises a structure represented by the formula:

  • VL3-CL  [IV]
  • wherein:
    VL1 is a first immunoglobulin light chain variable domain;
    VL2 is a second immunoglobulin light chain variable domain;
    VL3 is a third immunoglobulin light chain variable domain;
    VH1 is a first immunoglobulin heavy chain variable domain;
    VH2 is a second immunoglobulin heavy chain variable domain;
    VH3 is a third immunoglobulin heavy chain variable domain;
    CL is an immunoglobulin light chain constant domain;
    CH1 is the immunoglobulin CH1 heavy chain constant domain;
    CH2 is an immunoglobulin CH2 heavy chain constant domain;
    CH3 is an immunoglobulin CH3 heavy chain constant domain;
    hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
    L1, L2, L3, and L4 are amino acid linkers;
    wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
    wherein:
  • (a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
  • (b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
  • wherein:
  • (a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
  • (b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
  • Item 106: The binding protein of item 104, wherein the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
  • Item 107: The binding protein of item 104, wherein the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
  • Item 108: The binding protein of item 104, wherein the second polypeptide chain further comprises a first Fc region linked to CHt, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 109: The binding protein of item 104, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 110: The binding protein of any one of items 104, 108, and 109, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 111: The binding protein of item 105, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
  • Item 112: The binding protein of item 105, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
  • Item 113: The binding protein of any one of items 105, 111, and 112, wherein the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
  • Item 114: The binding protein of item 104 or item 105, wherein at least one of L1, L2, L3, or L4 is independently 0 amino acids in length.
  • Item 115: The binding protein of item 104 or item 105, wherein L1, L2, L3, or L4 are each independently at least one amino acid in length.
  • Item 116: The binding protein of any one of items 104-115, wherein L1 is Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
  • Item 117: A binding protein comprising a first polypeptide chain, a second polypeptide chain, a third polypeptide chain and a fourth polypeptide chain wherein:
  • (a) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 305 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 305; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 304 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 304; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 302 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 302; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 303 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 303;
  • (b) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 313 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 313; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 312 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 312; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 310 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 310; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 311 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 311;
  • (c) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 321 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 321; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 320 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 320; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 318 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 318; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 319 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 319;
  • (d) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 329 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 329; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 328 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 328; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 326 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 326; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 327 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 327;
  • (e) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 337 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 337; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 336 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 336; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 334 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 334; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 335 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 335;
  • (f) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 345 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 345; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 344 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 344; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 342 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 342; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 343 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 343;
  • (g) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 353 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 353; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 352 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:352; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 350 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 350; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 351 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 351;
  • (h) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 361 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 361; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 360 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 360; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 358 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 358; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 359 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 359;
  • (i) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 369 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 369; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 368 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 368; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 366 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 366; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 367 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 367;
  • (j) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 377 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 377; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 376 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 376; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 374 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 374; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 375 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 375;
  • (k) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 385 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 385; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 384 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 384; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 382 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 382; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 383 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 383;
  • (l) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 393 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 393; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 392 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 392; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 390 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 390; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 391 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 391;
  • (m) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 401 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 401; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 400 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 400; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 398 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 398; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 399 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 399;
  • (n) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 409 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 409; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 408 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 408; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 406 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 406; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 407 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 407;
  • (p) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 417 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 417; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 416 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 416; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 414 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 414; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 415 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 415;
  • (q) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 425 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 425; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 424 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 424; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 422 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 422; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 423 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 423;
  • (r) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 433 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:433; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 432 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 432; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 430 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 430; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 431 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 431;
  • (s) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 441 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 441; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 440 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 440; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 438 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 438; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 439 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 439;
  • (t) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 449 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 449; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 448 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 448; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 446 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 446; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 447 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 447;
  • (u) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 457 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 457; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 456 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 456; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 454 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 454; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 455 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 455;
  • (v) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 465 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 465; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 464 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 464; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 462 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 462; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 463 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 463; or
  • (w) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 473 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 473; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 472 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 472; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 470 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 470; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 471 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 471.
  • Item 118: An isolated nucleic acid molecule comprising a nucleotide sequence encoding the binding protein of any one of items 1-117.
  • Item 119: An expression vector comprising the nucleic acid molecule of item 118.
  • Item 120: An isolated host cell comprising the nucleic acid molecule of item 118.
  • Item 121: An isolated host cell comprising the expression vector of item 119.
  • Item 122: The isolated host cell of item 120 or item 121, wherein the host cell is a mammalian cell or an insect cell.
  • Item 123: A vector system comprising one or more vectors encoding a first, second, third, and fourth polypeptide chain of a binding protein of any one of items 1-117.
  • Item 124: The vector system of item 123, wherein the vector system comprises a first vector encoding the first polypeptide chain of the binding protein, a second vector encoding the second polypeptide chain of the binding protein, a third vector encoding the third polypeptide chain of the binding protein, and a fourth vector encoding the fourth polypeptide chain of the binding protein.
  • Item 125: The vector system of item 123, wherein the vector system comprises a first vector encoding the first and second polypeptide chains of the binding protein, and a second vector encoding the third and fourth polypeptide chains of the binding protein.
  • Item 126: The vector system of any one of items 123-125, wherein the one or more vectors are expression vectors.
  • Item 127: An isolated host cell comprising the vector system of any one of items 123-126.
  • Item 128: The isolated host cell of item 127, wherein the host cell is a mammalian cell or an insect cell.
  • Item 129: A method of producing a binding protein, the method comprising:
  • a) culturing a host cell of any one of items 120-122 and items 127-128 under conditions such that the host cell expresses the binding protein; and
    b) isolating the binding protein from the host cell.
  • Item 130: A method of preventing and/or treating HIV infection in a patient comprising administering to the patient a therapeutically effective amount of at least one binding protein of any one of items 1-117.
  • Item 131: The method of item 130, wherein the binding protein is co-administered with standard anti-retroviral therapy.
  • Item 132: The method of item 130 or item 131, wherein administration of the at least one binding protein results in the neutralization of one or more HIV virions.
  • Item 133: The method of any one of items 130-132, wherein administration of the at least one binding protein results in the elimination of one or more latently and/or chronically HIV-infected cells in the patient.
  • Item 134: The method of any one of items 130-133, wherein the patient is a human.
  • Item 135: The binding protein of any one of items 1-117 for the prevention or treatment of an HIV infection in a patient.
  • Item 136: The binding protein of item 135, wherein the binding protein is co-administered with standard anti-retroviral therapy.
  • Item 137: The binding protein of item 135 or item 136, wherein the binding protein causes the neutralization of one or more HIV virions in the patient.
  • Item 138: The binding protein of any one of items 135-137, wherein the binding protein causes the elimination of one or more latently and/or chronically HIV-infected cells in the patient.
  • Item 139: The binding protein of any one of items 135-138, wherein the patient is a human.
  • EXAMPLES
  • The Examples that follow are illustrative of specific embodiments of the disclosure, and various uses thereof. They are set forth for explanatory purposes only, and should not be construed as limiting the scope of the invention in any way.
  • Example 1: Production of Trispecific Binding Proteins Targeting the HIV-1 Env Glycoprotein
  • The HIV-1 envelope glycoprotein (Env/gp160) is located on the surface of the virus particle, and is composed of a homo-trimer comprising three non-covalently-linked transmembrane gp41 and gp120 complexes. Env enables viral entry into target cells by the binding of gp120 to HIV's main receptor (CD4) and co-receptor (CCR5 or CXCR4), followed by the induction of viral/cellular membrane fusion facilitated by conformational changes in gp41, resulting in entry of the viral capsid and delivery of the viral genome into the host cell. Additionally, Env is expressed on the surface of infected cells.
  • Env acts as the only target for neutralizing antibodies on the HIV-1 virion. Binding of neutralizing antibodies to viral Env inhibits viral attachment/entry. Moreover, binding of neutralizing antibodies to HIV-1 infected, Env expressing cells leads to their destruction by Antibody-Dependent Cell-Mediated Cytotoxicity (ADCC) and Complement Dependent Cytotoxicity (CDC), resulting in reduction of the latent viral reservoir. Thus, neutralizing antibodies targeting Env are an attractive area for anti-viral therapy development. However, because of the high sequence diversity and mutation rate of the HIV-1 virus, developing neutralizing antibodies targeting Env has proven challenging due to the high likelihood that a given HIV-1 strain either lacks the epitope of any given neutralizing antibody, or the strain has evolved a mutation to become resistant to the antibody. Strategies must be developed to mitigate the breakthrough of viral strains when developing novel neutralizing antibodies targeting HIV-1. The studies described herein explore the development of novel trispecific binding proteins comprising four polypeptides forming three antigen binding sites that specifically bind three different epitopes on the HIV Env glycoprotein, and use of these novel trispecific binding proteins in neutralizing HIV-1.
  • Methods
  • Binding Protein Production and Purification
  • The vectors expressing the trispecific binding proteins were constructed by inserting the designed heavy and light chain genes into a mammalian expression vector. Corresponding heavy and light chain pairing occurred spontaneously, and heterodimer formation was promoted by Knob-in-Hole mutations engineered in the Fc region.
  • Binding proteins were produced in Expi293 cells by cotransfection of four expression plasmids (Life Technologies, Expi293™ Expression System Kit, Cat. No. A14635). Binding proteins were purified using a two-step purification scheme. First, binding proteins were captured on protein A affinity chromatography resin, washed, and then eluted in glycine at pH 3.0. The eluted proteins were then dialyzed in PBS, concentrated, and filtered. The filtered antibodies were further purified using a Superdex 200 SEC column to obtain monomeric binding proteins.
  • Affinity Measurements of the Binding Proteins
  • Binding affinities of anti-HIV trispecific binding proteins were measured by surface plasmon resonance (SPR) using a Biacore3000 instrument (GE Healthcare). The assay buffer used was HBS-EP (GE Healthcare).
  • The affinity of the indicated proteins for the MPER binding site on the HIV-1 protein gp41 was measured by surface plasmon resonance (SPR) analysis using a Biacore Instrument as follows: binding proteins were first captured on a CM5 chip coupled with anti-human Fc antibody, followed by flow through of varying concentrations (100 nM-6.25 nM) of the MPER binding peptide (Acetyl-RRRNEQELLELDKWASLWNWFDITNWLWYIRRR-Ttds-Lys-(Biotin)-NH2) (SEQ ID NO: 284) at 30 μL per minute, and binding was detected by measurement of association for 240 seconds, and dissociation for 300 seconds on a Biacore 3000 at 25° C. HBS-EP buffer was used for sample dilution, as well as running buffer. Regeneration of the chip was done with 3 M MgCl2 at 30 μL per minute. For data analysis the BIAevaluation software v.4.1 (GE Healthcare) was used. Data were fit globally using a 1:1 Langmuir model with mass transfer. After software-based curve fitting, the ON and OFF reates at each concentration of MPER binding peptide was calculated and used to obtain a binding affinity for each binding protein.
  • The affinity of the indicated proteins for the CD4BS binding site on the HIV-1 protein gp120 was measured by SPR as follows: recombinant HIV-1 gp120 (Thr27-Arg498) protein (HIV-1/Clade B/C (CN54), ARCO Biosystems (Cat. # GP4-V15227)) was captured on a CM5 chip, followed by flow through of varying concentrations (100 nM-6.25 nM) of the binding proteins, and binding was detected by measurement of association for 240 seconds, and dissociation for 300 seconds on a Biacore 3000 at 25° C. HBS-EP buffer was used for sample dilution, as well as running buffer. Regeneration of the chip was done with 3 M MgCl2 at 30 μL per minute. For data analysis the BIAevaluation software v.4.1 (GE Healthcare) was used. Data were fit globally using a 1:1 Langmuir model with mass transfer. After software-based curve fitting, the ON and OFF reates at each concentration of Binding Protein was calculated and used to obtain a binding affinity for each binding protein.
  • Conformational Stability and Aggregation Assays
  • Conformational stability of the trispecific binding proteins was assessed by determining the melting point Tm and aggregation onset temperature (Tagg).
  • Melting point Tm measurements were performed by differential scanning fluorimetry (DSF). Samples were diluted in D-PBS buffer (Invitrogen) to a final concentration of 0.2 μg/μL including a 4× concentration solution of SYPRO-Orange dye (Invitrogen, 5000× stock in DMSO) in D-PBS in white sem-skirt 96-well plates (BIORAD). All measurements were done in duplicate using a MyiQ2 real time PCR instrument (BIORAD). Negative first derivative curves (−d(RFU)/dT) of the melting curves were generated in the iQ5 software v2.1 (BIORAD). Data were then exported into Excel for Tm determination and graphical display.
  • Melting Point Tm and aggregation onset temperature (Tagg) were also measured by static light scattering (SLS) using a Unit instrument (Unchained Labs). 9 μL of each sample was loaded undiluted into a multicuvette array. The samples were then heated from 20° C. to 95° C. at a heating rate of 0.3° C./minute. The barycentric mean (BCM) of the tryptophan fluorescence spectra was used to measure the protein melting curve, and determine the Tm values. The 266 nm static light scattering (SLS) signal was used to measure the aggregation curve and determine the Tagg. Data analysis was performed using the Unit analysis software v2.1.
  • Results
  • A novel strategy was developed for improving neutralizing antibody efficacy against HIV-1, while concomitantly limiting the likelihood of viral breakthrough due to high sequence diversity and/or viral mutation. This strategy involved the generation of trispecific binding proteins comprising four polypeptides that formed three antigen binding sites that specifically bind three different epitopes on the HIV Env glycoprotein (FIG. 1). Each antigen binding site comprised the VH and VL domain from a different HIV-1 neutralizing antibody that targeted a distinct epitope on the Env glycoprotein. The trispecific binding proteins contained a first pair of polypeptides that possessed dual variable domains having a cross-over orientation forming two distinct antigen binding sites (called the CODV Ig format), and a second pair of polypeptides, each with a single variable domain that formed a third antigen binding site (FIGS. 1A and 1B).
  • The first pair of polypeptides (that possessed the dual variable domains) comprised a first polypeptide having the structure VL2-Linker-VL1-Linker-Immunoglobulin light chain constant domain, and a second polypeptide having the structure VH1-Linker-VH2-Linker-Immunoglobulin CH1, hinge, CH2, and CH3 heavy chain constant domains, resulting in a pair of polypeptides which had a cross over orientation that formed two distinct antigen binding sites: VH1-VL1 and VH2-VL2 (FIGS. 1C and 1D, see light and heavy chains B). The second pair of polypeptides (that each possessed a single variable domain) comprised a first polypeptide having the structure VH3-Immunoglobulin CH1, hinge, CH2, and CH3 heavy chain constant domains, and a second polypeptide having the structure VL3-Immunoglobulin light chain constant domain, resulting in a pair of polypeptides that formed a third antigen binding site: VH3-VL3 (FIGS. 1C and 1D, see light and heavy chains A). In addition, the trispecific binding proteins were constructed to include an LS mutation. Furthermore, the trispecific binding proteins were constructed such that within one binding protein, one CH3 domain included a knob mutation and the other CH3 domain included a hole mutation to facilitate heterodimerization of the heavy chains (FIG. 1).
  • Using the above described approach for trivalent binding protein design, three trispecific binding proteins (Binding Proteins 2, 3, and 24) were generated. These trispecific binding proteins were created by grafting onto a trispecific binding protein framework the VH and VL domains isolated from antibodies targeting three distinct epitopes on the HIV-1 Env glycoprotein: MPER Ab (targeting the MPER epitope on gp41), CD4BS Ab “b” (targeting the CD4 Binding Site on gp120), and V1/V2 directed Ab “a” (targeting the V1/V2 domain on gp120). Binding Protein 2 was constructed such that the first pair of polypeptides (which formed two antigen binding sites) targeted the HIV-1 Env glycoprotein epitopes MPER and V1/V2, and the second pair of polypeptides (which formed the single antigen binding site) targeted the HIV-1 Env glycoprotein epitope CD4BS (Binding Protein 2=MPER×V1/V2/CD4BS). Binding Protein 3 was constructed such that the first pair of polypeptides (which formed two antigen binding sites) targeted the HIV-1 Env glycoprotein epitopes V1/V2 and MPER, and the second pair of polypeptides (which formed the single antigen binding site) targeted the HIV-1 Env glycoprotein epitope CD4BS (Binding Protein 3=V1/V2×MPER/CD4BS). Binding Protein 24 was constructed such that the first pair of polypeptides (which formed two antigen binding sites) targeted the HIV-1 Env glycoprotein epitopes V1/V2 and CD4BS, and the second pair of polypeptides (which formed the single antigen binding site) targeted the HIV-1 Env glycoprotein epitope MPER (Binding Protein 24=V1/V2×CD4BS/MPER). The three trispecific binding proteins, as well as their parental antibodies, were purified over protein A affinity resin (FIGS. 2A and 3A) followed by size exclusion chromatography (FIGS. 2B and 3B) to obtain monomeric proteins suitable for further characterization. All three trispecific binding proteins were stable and formed monomers at high frequency.
  • To test the potential for developing binding proteins targeting two different HIV-1 Env protein epitopes (instead of three), bispecific binding proteins were designed based upon the above described CODV Ig format (See WO 2012/135345), using two different VH and VL domains from the same parental antibodies used to create the trispecific binding proteins. However, the bispecific binding proteins with these specific variable domains did not purify well as monomers, showing significantly increased aggregate formation when compared to the corresponding trispecific binding proteins (FIGS. 4A and 4B).
  • Next, the binding affinity of the purified trispecific binding proteins (and their parental antibodies) was measured for the HIV-1 Env glycoprotein epitopes on gp41 and gp120. First, the binding affinity for gp41 was measured for the three trispecific binding proteins, as well as the parental MPER antibody, by Biacore assay using the MPER binding peptide (FIG. 5). The binding affinity for the MPER antibody was calculated to be 18.7 nM. Surprisingly, the three trispecific binding proteins all had a higher affinity for the MPER binding peptide than did the parental antibody (Table 3), with Binding Protein 2 having an approximately 3.1 fold higher affinity than the MPER antibody (6.05 nM vs. 18.7 nM, respectively).
  • TABLE 3
    Affinity measurements for the MPER binding peptide
    MW
    ka kd Rmax KA KD MPER
    Antibody Analyte (1/Ms) (1/s) (RU) (1/M) (M) Chi2 (kDa)
    MPER Ab Gp41- 5.85E+04 1.09E−03 47.5 5.35E+07 1.87E−08 0.55 5.25
    MPER JPT
    Binding Gp41- 1.15E+05 6.97E−04 29.0 1.65E+08 6.05E−09 0.27 2.29
    Protein 2 MPER JPT
    Binding Gp41- 4.67E+04 7.79E−04 38.5 6.00E+07 1.67E−08 0.41 5.14
    Protein 3 MPER JPT
    Binding Gp41- 6.28E+04 8.06E−04 35.5 7.80E+07 1.28E−08 0.48 5.24
    Protein 24 MPER JPT
  • Similarly, the binding affinity for the CD4 Binding Site on gp120 was measured for the three trispecific binding proteins, as well as the parental CD4BS antibody, by Biacore assay (FIG. 6). The three trispecific binding proteins all had a similar affinity for the CD4 Binding Site when compared to the parental antibody (Table 4).
  • TABLE 4
    Affinity measurements for the CD4BS binding site
    Antibody ka (1/Ms) kd (1/s) Rmax (RU) KD (M) Chi2
    CD4BS 2.79E+05 2.32E−04 31.4 8.30E−10 1.17
    Ab “b”
    Binding 2.31E+05 2.41E−04 34.0 1.04E−09 0.74
    Protein 2
    Binding 7.58E+04 2.75E−04 38.2 3.63E−09 0.19
    Protein 3
    Binding 1.46E+05 2.52E−04 41.6 1.73E−09 0.38
    Protein 24
  • Thus, the trispecific binding proteins were able to bind both of the tested target epitopes on the HIV-1 Env glycoprotein (Table 5). Moreover, all three trispecific binding proteins bound the target epitopes with affinities approximately equal to or exceeding those of their parental antibodies. Binding affinity of the V1/V2 directed Ab “a”, as well as of the V1/V2 directed Ab “a” binding sites within the three trispecific binding proteins 2, 3, and 24 could not be determined by Biacore analysis because this required a specific gp120 protein antigen which was unavailable.
  • TABLE 5
    Summary of binding capabilities of tested binding proteins
    Binding on Binding on
    Sample gp120? gp41?
    MPER Ab No Yes
    CD4BS Ab “b” Yes No
    V1/V2 directed No No
    Ab “a”
    Binding Yes Yes
    Protein 2
    Binding Yes Yes
    Protein 3
    Binding Yes Yes
    Protein 24
  • The biophysical properties were tested for the trispecific binding proteins and parental antibodies (Table 6). All of the tested proteins had similar stabilities and limited propensities to form aggregates.
  • TABLE 6
    Conformational stability/aggregation of the binding proteins
    SLS at
    Intrinsic AA 266 nm
    DSF Tm Fluo Tm Tagg
    Sample (° C.) (° C.) (° C.)
    MPER Ab 69/75 68 71
    CD4BS Ab “b” 69 66 68
    V1/V2 directed 69 64 67
    Ab “a”
    Binding 60/70 54 58
    Protein 2
    Binding 57/70 55 56
    Protein 3
    Binding 56/71 53 54
    Protein 24
  • These experiments indicated that stable, monomeric, trispecific binding proteins targeting three distinct epitopes on the HIV-1 Env glycoprotein could be constructed and efficiently purified. Furthermore, the trispecific binding proteins retained their ability to bind their target epitopes, having similar or improved affinity relative to their parental antibodies. Finally, the trispecific binding proteins had suitable biophysical properties, and showed significantly less aggregation than the corresponding bispecific binding proteins.
  • Example 2: Characterization of the Binding Proteins
  • Due to the success of developing three trispecific binding proteins with appropriate biophysical properties and binding abilities (as described in Example 1), 21 additional trispecific binding proteins were developed and tested. The experiments described herein explored the ability of the 24 trispecific binding proteins to neutralize HIV-1 in vitro, and the pharmacokinetic properties of a number of these trispecific binding proteins in vivo.
  • Neutralization assays were performed using the TZM-b1 assay which measures neutralization as a function of reductions in HIV-1 Tat-regulated firefly luciferase (Luc) reporter gene expression after a single round of infection with Env-pseudotyped viruses. The assays were performed as described in Marcella Sarzotti-Kelsoe et al., J. Immunological Methods, 409:131-146 (2014). The neutralization results of various antibodies are shown in Tables 8-10.
  • Methods
  • Production of Env-Pseudotyped Viruses
  • Assay stocks of Env-pseudotyped viruses were produced in 293T/17 cells by co-transfection with two plasmids: an Env expression plasmid and a plasmid expressing the entire HIV-1 genome except for Env. Co-transfection of these plasmids produced infectious pseudovirus particles which were capable of delivering the Tat gene into target cells, but infections with these pseudovirions could not themselves produce infectious viral progeny.
  • Viral Neutralization Assay
  • Neutralization of HIV infection using TZM-b1 cells (also known as JC53BL-13 cells) was performed as described previously (Marcella Sarzotti-Kelsoe et al., J. Immunological Methods, 409:131-146 (2014)). Briefly, a single round of infection using the Env-pseudotyped HIV-1 virions was carried out in TZM-b1 cells (a CXCR-4-positive HeLa cell clone). TZM-b1 cells were engineered to express CD4 and CCR5, and to contain integrated reporter genes for firefly luciferase and E. coli β-galactosidase under the control of an HIV long-terminal repeat. Reporter gene expression was induced in trans by viral Tat protein (delivered by the pseudotyped viruses) soon after single cycle infection. Luciferase activity was quantified as relative luminescence units (RLU), and was directly proportional to the number of infectious virus particles present in the initial inoculum over a wide range of values. Neutralization was measured as a function of decreased Tat-regulated Firefly luciferase (Luc) reporter gene expression after administration of varying concentrations of the indicated binding proteins. Neutralization titers were identified as the protein dilution at which RLUs were reduced by 80% compared to virus control wells after subtraction of background RLUs. The assay was performed in 96-well plates for high throughput capacity, and well-characterized reference strains were utilized for uniformity across studies.
  • Pharmacokinetic (PK) Measurements
  • Female Indian rhesus macaques weighing between 3 and 6 kg were randomly assigned to groups according to body weight (two macaques per group) and were intravenously injected with the indicated concentration of binding proteins. Blood was collected from the animals before the injection on day 0, and 30 minutes, 6 hours, 1 day, 2 days, 4 days, 7 days, 14 days, 21 days and 28 days after injection. The serum concentration of each binding protein was quantified in the plasma from the collected blood using an RSC3-based ELISA assay.
  • Results
  • 21 additional trispecific binding proteins targeting three distinct HIV-1 Env glycoprotein epitopes were generated and purified as described in Example 1. These 21 additional trispecific binding proteins (Binding Proteins 1 and 4-23) were created by grafting onto a trispecific binding protein framework the VH and VL domains isolated from antibodies targeting distinct HIV-1 epitopes on the HIV-1 Env glycoprotein: the anti-MPER antibodies MPER Ab “a” and MPER Ab “b” (targeting the MPER epitope on gp41), the anti-CD4BS antibodies CD4BS Ab “a” and CD4BS Ab “b” (targeting the CD4 Binding Site on gp120), the anti-V1/V2 antibodies V1/V2 directed Ab “a” and V1/V2 directed Ab “b” (targeting the V1/V2 domain on gp120), and the anti-V3 antibody V3 directed Ab (targeting the V3 loop on gp120) (Table 7).
  • TABLE 7
    Epitope binding site composition of the
    trispecific binding proteins
    Binding
    Protein: Epitope Binding Site:
     1 MPER × V1/V2 directed/CD4BS
     2 MPER × V1/V2 directed/CD4BS
     3 V1/V2 directed × MPER/CD4BS
     4 MPER × V1/V2 directed/CD4BS
     5 MPER × V3 directed/CD4BS
     6 V1/V2 directed × MPER/CD4BS
     7 V3 directed × V1/V2 directed/CD4BS
     8 MPER × V1/V2 directed/CD4BS
     9 MPER × V1/V2 directed/CD4BS
    10 V1/V2 directed × MPER/CD4BS
    11 MPER × V1/V2 directed/CD4BS
    12 MPER × V3 directed/CD4BS
    13 MPER × V3 directed/V1/V2 directed
    14 V1/V2 directed × MPER/CD4BS
    15 MPER × V3 directed/V1/V2 directed
    16 MPER × V3 directed/CD4BS
    17 V1/V2 directed × V3 directed/CD4BS
    18 V3 directed × MPER/CD4BS
    19 V3 directed × V1/V2 directed/MPER
    20 V3 directed × V1/V2 directed/CD4BS
    21 MPER × CD4BS/V1/V2 directed
    22 CD4BS × MPER/V1/V2 directed
    23 CD4BS × V1/V2 directed/MPER
    24 V1/V2 directed × CD4BS/MPER
  • The viral neutralization capabilities of five of the trispecific binding proteins (and their parental antibodies) at varying concentrations were tested against a panel of 208 different HIV-1 Env-pseudotyped viruses (Table 8). Binding protein-mediated neutralization of the pseudotyped HIV-1 isolates was measured using the TZM-b1 luciferase reporter gene assay. The inhibitory dose for each binding protein was calculated for each pseudotyped virus as the dilution that caused an 80% reduction in luminescence (IC80) after infection. Surprisingly, the IC80 geometric means calculated for each of the tested trispecific binding proteins was lower than the parental antibodies, suggesting that these trispecific binding proteins were more potent at neutralizing pseudotyped HIV-1 than their parental neutralizing antibodies.
  • TABLE 8
    IC80 measurements from viral neutralization assay
    Parental Antibody:
    V1/V2 V3
    Binding Protein: MPER directed directed CD4BS CD4BS
    15 1 2 19 20 3 Ab Ab “a” Ab Ab “b” Ab “a”
    # Viruses 208 208 208 208 208 208 208 208 208 208 208
    Total VS
    Neutralized:
    IC80 <50 μg/mL 190 202 206 198 206 206 203 151 113 202 183
    IC80 <10 μg/mL 180 199 206 180 206 206 193 149 109 200 175
    IC80 <1.0 μg/mL 166 169 191 145 188 186 61 133 98 184 108
    IC80 <0.1 μg/mL 122 109 136 80 144 123 10 99 72 79 10
    IC80 <0.01 μg/mL 74 7 70 22 54 47 5 24 26 6 0
    % VS
    Neutralized:
    IC80 <50 μg/mL 91 97 99 95 99 99 98 73 54 97 88
    IC80 <10 μg/mL 87 96 99 87 99 99 93 72 52 96 84
    IC80 <1.0 μg/mL 80 81 92 70 90 89 29 64 47 88 52
    IC80 <0.1 μg/mL 59 52 65 38 69 59 5 48 35 38 5
    IC80 <0.01 μg/mL 36 3 34 11 26 23 2 12 13 3 0
    Median IC80 0.033 0.088 0.026 0.164 0.029 0.045 1.69 0.037 0.054 0.149 0.780
    Geometric Mean 0.033 0.135 0.028 0.199 0.034 0.051 1.34 0.063 0.057 0.144 0.814
  • Next, the viral neutralization capabilities of a larger panel of trispecific binding proteins (and their parental antibodies) at varying concentrations were tested against 20 pseudotyped viruses representing 10 different HIV-1 clades (Table 9). The trispecific binding proteins provided robust protection against infection with these 20 viruses (Table 10).
  • TABLE 9
    20 representative viruses used for
    viral neutralization assay
    Virus Clade
    KER2008.12.SG3 A
    620345.c1.SG3 AE
    DJ263.8.SG3 AG
    T266-60.SG3 AG
    T278-50.SG3 AG
    BL01.DG.SG3 B
    BR07.DG.SG3 B
    CNE57.SG3 B
    H086.8.SG3 B
    QH0692.42.SG3 B
    SS1196.01.SG3 B
    CNE21.SG3 BC
    6471.V1.C16.SG3 C
    CAP210.E8.SG3 C
    DU156.12.SG3 C
    DU422.01.SG3 C
    TV1.29.SG3 C
    ZM106.9.SG3 C
    3817.v2.c59.SG3 CD
    X2088.c9.SG3 G
  • TABLE 10
    IC80 measurements from viral neutralization assay of 20 representative viruses
    Total VS
    Neutralized % VS Neutralized
    IC80 IC80 IC80 IC80 Median Geometric
    # Viruses <50 μg/mL <1 μg/mL <50 μg/mL <1 μg/mL IC80 Mean
    Binding Protein 4 20 17 11 85 55 0.474 0.398
    Binding Protein 5 20 14 11 70 55 0.199 0.324
    Binding Protein 6 20 16 9 80 45 0.453 0.449
    Binding Protein 7 20 16 9 80 45 0.523 0.312
    Binding Protein 8 20 17 12 85 60 0.578 0.488
    Binding Protein 9 20 14 9 70 45 0.836 0.531
    Binding Protein 10 20 16 12 80 60 0.222 0.173
    Binding Protein 11 20 18 15 90 75 0.310 0.181
    Binding Protein 12 20 17 12 85 60 0.526 0.566
    Binding Protein 13 20 19 12 95 60 0.202 0.189
    Binding Protein 14 20 17 15 85 75 0.208 0.088
    Binding Protein 15 20 17 10 85 50 0.345 0.378
    Binding Protein 16 20 18 11 90 55 0.228 0.314
    Binding Protein 17 20 17 12 85 60 0.086 0.180
    Binding Protein 18 20 15 10 75 50 0.536 0.501
    Binding Protein 19 20 18 11 90 55 0.563 0.538
    Binding Protein 20 20 18 14 90 70 0.224 0.229
    Binding Protein 21 20 15 9 75 45 0.627 0.501
    Binding Protein 2 20 18 13 90 65 0.375 0.222
    Binding Protein 22 20 13 8 65 40 0.856 0.634
    Binding Protein 23 20 17 6 85 30 1.930 1.129
    Binding Protein 3 20 18 12 90 60 0.469 0.287
    Binding Protein 24 20 16 7 80 35 2.130 1.054
    MPER Ab “a” 20 16 8 80 40 1.007 0.981
    MPER Ab “b” 20 16 16 80 80 0.071 0.024
    CD4BS A “b” 20 15 9 75 45 0.181 0.399
    V1/V2 directed Ab “a” 20 11 9 55 45 0.060 0.094
    V3 directed Ab 20 12 10 60 50 0.183 0.136
    CD4BS Ab “a” 20 10 1 50 5 1.530 1.811
    V1/V2 directed Ab “b” 20 9 9 45 45 0.051 0.039
  • Finally, the pharmacokinetics (PK) of a subset of the trispecific binding proteins and parental antibodies were tested in rhesus macaques. Briefly, 10 or 20 mg/kg of the proteins were intravenously injected into female rhesus macaques, and ELISA assays were performed on the plasma from blood samples taken prior to injection, and on the plasma from blood samples taken at many time points after the injection (up to 42 days) (FIG. 7). All of the trispecific binding proteins could be detected at least 14 days after IV administration, with Binding Protein 1 remaining detectable at least 35 days after injection, showing that the binding proteins were stable in vivo.
  • Taken together, this data suggested that broadly neutralizing trispecific binding proteins could be constructed which targeted three distinct epitopes on the HIV-1 Env glycoprotein. These binding proteins showed similar or increased potency/much improved neutralizing capabilities (breadth) relative to the parental neutralizing antibodies. Furthermore, these trispecific binding proteins appeared to be well tolerated in vivo. Without wishing to be bound by theory, the development of broadly neutralizing trispecific binding proteins targeting multiple epitopes on HIV may allow for improved anti-viral therapy relative to monospecific or bispecific antibodies, as HIV viral particles are less likely to be resistant to all three antigen binding sites on the neutralizing trispecific binding proteins than the single or dual antigen binding sites on monospecific or bispecific neutralizing antibodies, respectively.
  • Example 3: Characterization of T-Cell Engagers
  • As noted above, Env is expressed on the surface of HIV-infected cells. Because of this, Env can act as an antibody target to identify infected cells, and induce Antibody-Dependent Cell-Mediated Cytotoxicity (ADCC) and Complement Dependent Cytotoxicity (CDC), resulting in reduction of the latent viral reservoir. The studies described herein explore the development of novel trispecific binding proteins (termed “T cell engagers”) that contain three antigen binding sites targeting three different antigens (HIV-1 Env glycoprotein, CD3, and CD28). These novel proteins not only include antigen binding sites from neutralizing antibodies, but also the ability to bind effector T cells, bringing them into close proximity to infected target cells, thus inducing HIV-infected cell lysis.
  • Methods
  • Binding Properties of T-Cell Engagers
  • The binding properties of the T-cell engagers was measured by ELISA assay using a horse radish peroxidase-conjugated anti-Fab probe to detect T-cell engager binding to the surface of ELISA plates coated with CD3, CD28, or Resurfaced Stabilized Core 3 (RSC3) protein of gp120. Human CD3ge-hIgG4 (KIH) (Cat. No: 03-01-0051) from Cambridge Biologics, MA, USA; Human CD28-hIgG4 (Cat. No: 03-01-0303) from Cambridge Biologics, MA, USA.
  • T-Cell Activation Assay
  • CD4 and CD8 T cell activation were measured as follows: peripheral blood mononuclear cells (PBMCs) were enriched from buffy coats obtained from naïve donors (NIH blood bank) using magnetic beads (Miltenyi Biotec). These cells were co-cultured for 14-16 hours with either uninfected or HIV-1 infected CEM cells in the presence of increasing concentrations of the binding proteins (0.01-1.0 μg/mL) with brefeldin A. The cells were then stained for surface expression of T-cell markers (CD3, CD4, and CD8) and activation markers (CD25 and CD69), followed by intracellular staining for cytokines (IFN-γ, TNF-α, and IL-2) using fluorescently conjugated antibodies (BD Biosciences, eBiosciences, Biolegend). The number of CD4 and CD8 T cells expressing each cytokine or activation marker was determined by running the samples on an LSRII flow cytometer and analyzing the data with Flowjo software (Treeestar).
  • CD3 Downregulation
  • CD3 downregulation after T cell activation by the T-cell engagers was measured by staining activated PBMCs with non-competing mouse anti-human CD3 antibody and quantitated using flow cytometry.
  • Cytotoxicity Assay
  • Cytotoxicity of the T-cell engagers to CEM-BaL, ACH2, and J1.1 cells was monitored by flow cytometry as follows: latent cell lines (ACH2, J1.1, OM10) were obtained from the NIH AIDS Reagent Program. The activation of these cells was performed by culturing the cells in the presence or absence of TNF-α (10 ng/mL) for 14-16 hours. Activation was measured by determining the expression of cell surface HIV envelope glycoprotein by flow cytometry using an allophycocyanin-conjugated anti-HIV Env antibody (2G12). The CEM-IIIb, ACH2, J1.1 and OM10 cells were labeled with the membrane dye PKH-26 (Sigma) and used as target cells in a cytotoxicity assay. These labeled target cells were co-cultured for 14-16 hours at an E:T ratio of 10:1 with enriched human T cells as effector cells in the presence of increasing amounts of the binding proteins. The extent of cell lysis in the target cells was determined by staining with a live/dead cell marker (Life technologies) and measuring the number of dead cells in the labeled target cell population by running the samples on an LSRII flow cytometer followed by analysis using Flowjo software (Treestar).
  • Results
  • The capacity to develop T cell engagers with antigen binding sites targeting both T cell surface proteins and neutralizing epitopes on HIV-1 was explored. T cell engagers were constructed which contained two antigen binding sites targeting two different T cell surface receptors (CD3 and CD28), and a third antigen binding site targeting the HIV-1 Env glycoprotein (FIGS. 8A and 8B). In addition, the T cell engagers were constructed to include an LS mutation. Furthermore, the T cell engagers were constructed such that within one binding protein, one CH3 domain included a knob mutation and the other CH3 domain included a hole mutation to facilitate heterodimerization of the heavy chains (FIGS. 8A and 8B).
  • Using this approach, two T cell engagers were constructed which targeted both T cell surface proteins and the HIV-1 Env glycoprotein (Binding Protein 32 and CD3×CD28/CD4BS “b” Ab). These two T cell engagers were created by grafting onto a trispecific binding protein framework the VH and VL domains isolated from parental antibodies targeting the T cell surface proteins CD3 and CD28, and the anti-HIV-1 antibody CD4BS Ab “b” (targeting the CD4 Binding Site on gp120). Binding Protein 32 was constructed such that the first pair of polypeptides (which formed two antigen binding sites) targeted the T cell surface receptors CD28 and CD3, and the second pair of polypeptides (which formed the single antigen binding site) targeted the HIV-1 antigen CD4BS (Binding Protein 32=CD28×CD3/CD4BS). The CD3×CD28/CD4BS “b” Ab trispecific binding protein was constructed such that the first pair of polypeptides (which formed two antigen binding sites) targeted the T cell surface receptors CD3 and CD28, and the second pair of polypeptides (which formed the single antigen binding site) targeted the HIV-1 antigen CD4BS (Table 11).
  • TABLE 11
    Format of T-cell engagers
    Arm
    1 Arm 2 Arm 3
    Format Name of Construct Antigen Antigen Antigen
    T cell engagers, CD3 × CD28/CD4BS CD4BS CD3 CD28
    trispecific Ab “b”
    T cell engagers, Binding Protein 32 CD4BS CD28 CD3
    trispecific
    Monospecific CD4BS IgG4 CD4BS CD4BS
  • The ability of the two T cell engagers to bind to each of their three target antigens was tested by ELISA assay. The T cell engagers were capable of binding both the CD3 and CD28 T cell surface proteins with the CD3 and CD28 antigen binding sites in either orientation in the bispecific arms of the T cell engagers (i.e., CD3×CD28 for CD3×CD28/CD4BS Ab “b” or CD28×CD3 for Binding Protein 32). Both T cell engagers were also capable of binding to gp120 (as measured using the HIV-1 RSC3 protein, a gp120 variant lacking the V1, V2, and V3 variable regions) (FIG. 9).
  • The effect on T cell activity was next tested for both of the T cell engagers. Incubation of the T cell engagers with monocytes revealed that the T cell engagers induced robust CD8+ T cell activation (FIG. 10). Similarly, the T cell engagers were capable of inducing significant CD4+ T cell activation on PBMCs alone, or PBMCs incubated with either of the HIV-1 infected T cell lines CEM-NKr cells or CEM-BaL cells (FIG. 11). Additionally, both of the T cell engagers reduced cell surface expression of CD3 on activated T cells (FIG. 12).
  • Finally, the ability of the T cell engagers to induce lysis of HIV-infected cells was tested. The T cell engagers (and positive and negative control bispecific binding proteins targeting CD3 and an HIV antigen) were incubated with the HIV-1 infected T cell line CEM-BaL cells. Incubation of the T cell engagers with the infected cells induced robust cell lysis over a wide range of concentrations (FIG. 13A). Likewise, incubation of these T cell engagers induced lysis of the latently infected T cell line ACH2 cells (FIG. 13B), as well as J1.1 cells (FIG. 13C). Surprisingly, the T cell engagers showed comparable or better cytotoxic activity against chronic and latent HIV-infected cell lines when compared to the bispecific binding proteins.
  • Taken together, the novel T cell engagers described herein retained the ability from their parental antibodies to bind their target antigens on the HIV-1 Env glycoprotein gp120 on HIV-infected cells, as well as the cell-surface exposed T cell proteins CD3 and CD28. The T cell engagers induced robust CD4+ and CD8+ T cell activation, and diminished CD3 surface expression. Finally, these T cell engagers induced significant lysis of HIV-1 infected T cells. Without wishing to be bound by theory, these T cell engagers may provide a novel strategy for anti-viral therapeutics by reducing/eliminating the latent viral reservoir through T cell engagement in HIV/AIDS patients.
  • While the present disclosure includes various embodiments, it is understood that variations and modifications will occur to those skilled in the art. Therefore, it is intended that the appended claims cover all such equivalent variations that come within the scope of the disclosure. In addition, the section headings used herein are for organizational purposes only and are not to be construed as limiting the subject matter described.
  • Each embodiment herein described may be combined with any other embodiment or embodiments unless clearly indicated to the contrary. In particular, any feature or embodiment indicated as being preferred or advantageous may be combined with any other feature or features or embodiment or embodiments indicated as being preferred or advantageous, unless clearly indicated to the contrary.
  • All references cited in this application are expressly incorporated by reference herein.
  • SEQUENCES
  • TABLE 1
    Heavy and light chain SEQ ID NOs for binding proteins 1-53
    and the target antigens to which the binding proteins are directed.
    Binding
    Protein SEQ ID NOs Target
     1 4, 3, 1, 2 MPER × V1/V2 directed/CD4BS
     2 12, 11, 9, 10 MPER × V1/V2 directed/CD4BS
     3 20, 9, 17, 18 V1/V2 directed × MPER/CD4BS
     4 28, 27, 25, 26 MPER × V1/V2 directed/CD4BS
     5 36, 35, 33, 34 MPER × V3 directed/CD4BS
     6 44, 43, 41, 42 V1/V2 directed × MPER/CD4BS
     7 52, 51, 49, 50 V3 directed × V1/V2 directed/CD4BS
     8 60, 59, 57, 58 MPER × V1/V2 directed/CD4BS
     9 68, 67, 65, 66 MPER × V1/V2 directed/CD4BS
    10 76, 75, 73, 74 V1/V2 directed × MPER/CD4BS
    11 84, 83, 81, 82 MPER × V1/V2 directed/CD4BS
    12 92, 91, 89, 90 MPER × V3 directed/CD4BS
    13 100, 99, 97, 98 MPER × V3 directed/V1/V2 directed
    14 108, 107, 105, 106 V1/V2 directed × MPER/CD4BS
    15 116, 115, 113, 114 MPER × V3 directed/V1/V2 directed
    16 124, 123, 121, 122 MPER × V3 directed/CD4BS
    17 132, 131, 129, 130 V1/V2 directed × V3 directed/CD4BS
    18 140, 139, 137, 138 V3 directed × MPER/CD4BS
    19 148, 147, 145, 146 V3 directed × V1/V2 directed/MPER
    20 156, 155, 153, 154 V3 directed × V1/V2 directed/CD4BS
    21 164, 163, 161, 162 MPER × CD4BS/V1/V2 directed
    22 172, 171, 169, 170 CD4BS × MPER/V1/V2 directed
    23 180, 179, 177, 178 CD4BS × V1/V2 directed/MPER
    24 188, 187, 185, 186 V1/V2 directed × CD4BS/MPER
    25 196, 195, 193, 194 MPER × V1/V2 directed/CD4BS
    26 204, 203, 201, 202 MPER × V1/V2 directed/CD4BS
    27 212, 211, 209, 210 MPER × V1/V2 directed/CD4BS
    28 220, 219, 217, 218 MPER × V1/V2 directed/CD4BS
    29 228, 227, 225, 226 MPER × V1/V2 directed/CD4BS
    30 235, 234, 232, 233 MPER × V1/V2 directed/CD4BS
    31 243, 242, 240, 241 MPER × V1/V2 directed/CD4BS
    32 305, 304, 302, 303 CD28 × CD3/CD4BS
    33 313, 312, 310, 311 CD28 × CD3/CD4BS
    34 321, 320, 318, 319 CD28 × CD3/V1/V2 directed
    35 329, 328, 326, 327 CD28 × CD3/V1/V2 directed
    36 337, 336, 334, 335 CD28 × CD3/CD4BS
    37 345, 344, 342, 343 CD28 × CD3/CD4BS
    38 353, 352, 350, 351 CD4BS × CD3/CD28
    39 361, 360, 358, 359 CD4BS × CD3/CD28
    40 369, 368, 366, 367 CD3 × CD4BS/CD28
    41 377, 376, 374, 375 CD3 × CD4BS/CD28
    42 385, 384, 382, 383 CD4BS × CD3/CD28
    43 393, 392, 390, 391 CD4BS × CD3/CD28
    44 401, 400, 398, 399 CD3 × CD4BS/CD28
    45 409, 408, 406, 407 CD3 × CD4BS/CD28
    46 417, 416, 414, 415 V1/V2 directed × CD3/CD28
    47 425, 424, 422, 423 V1/V2 directed × CD3/CD28
    48 433, 432, 430, 431 CD3 × V1/V2 directed/CD28
    49 441, 440, 438, 439 CD3 × V1/V2 directed/CD28
    50 449, 448, 446, 447 V1/V2 directed × CD3/CD28
    51 457, 456, 454, 455 V1/V2 directed × CD3/CD28
    52 465, 464, 462, 463 CD3 × V1/V2 directed/CD28
    53 473, 472, 470, 471 CD3 × V1/V2 directed/CD28
  • TABLE 2
    Heavy and light chain sequences of binding proteins. CDR sequences are
    bolded and italicized.
    Binding Protein 1 Amino Acid Sequences
    Heavy chain A Qvqlvqsggqmkkpgesmriscrasgyef
    Figure US20190054182A1-20190221-P00001
    wirlapgkrpewmg
    Figure US20190054182A1-20190221-P00002
    SEQ ID 
    Figure US20190054182A1-20190221-P00003
    rvtmtrdvysdtaflelrsltvddtavyfctr
    Figure US20190054182A1-20190221-P00004
    NO: 1
    wgrgtpvivssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgalt
    sgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtimisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreegynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvctlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain A Eivltqspgtlslspgetaiisc
    Figure US20190054182A1-20190221-P00005
    wqqrpgqaprlviy
    Figure US20190054182A1-20190221-P00006
    gipdrf
    SEQ ID 
    sgsrwgpdynltisnlesgdfgvyyc
    Figure US20190054182A1-20190221-P00007
    fgqgtkvqvdiktrtvaapsvfifpps
    NO: 2
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsst
    ltlskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrtvesggglvkpggslrlscsas
    Figure US20190054182A1-20190221-P00008
    mtwvrqppgkglewvgr
    Figure US20190054182A1-20190221-P00009
    SEQ ID 
    Figure US20190054182A1-20190221-P00010
    dyaesvkgrftisrdntkntlylemnnvrtedtgyyfcar
    Figure US20190054182A1-20190221-P00011
    NO: 3
    Figure US20190054182A1-20190221-P00012
    wgqgtlvivssdkthtqvhltqsgpevrkpgtsvkvsckapgntlktyd
    lhwvrsvpgqglqwmgwishegdkkviverfkakvtidwdrstntaylqlsgltsg
    dtavyy
    Figure US20190054182A1-20190221-P00013
    Figure US20190054182A1-20190221-P00014
    gqgtavtvssdkt
    htastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgvhtfpav
    lqssglysissvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkthtcppcp
    apellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyvdgvevh
    naktkpreegynstyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakg
    qprepqvytlppcrdeltknqvslwclvkgfypsdiavewesngqpennykttpp
    vldsdgsfflyskltvdksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain B Dfvltqsphslsvtpgesasisckss
    Figure US20190054182A1-20190221-P00015
    lawyvqkpgrspqlliy
    Figure US20190054182A1-20190221-P00016
    s
    SEQ ID 
    rasgvpdrfsgsgsdkdftlkisrvetedvgtyyc
    Figure US20190054182A1-20190221-P00017
    gqgtkvdikdkt
    NO: 4
    ht
    aseltqdpavsvalkqtvtitc
    Figure US20190054182A1-20190221-P00018
    wyqkkpgqapvllfy
    Figure US20190054182A1-20190221-P00019
    gi
    pdrfsgsasgnrasltitgaqaedeadyyc
    Figure US20190054182A1-20190221-P00020
    fgggtkltvldkthtrtv
    aapsvfifppsdeqlksgtusvvcllnnfypreakvqwkvdnalqsgnsqesvteq
    dskdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 1 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcggccagatgaagaaacccggcgagagcatgcg SEQ ID 
    gatcagctgcagagccagcggctacgagttcatcgactgcaccctgaactggatcaga NO: 5
    ctggcccctggcaagcggcctgagtggatgggatggctgaagcctagaggcggagc
    cgtgaactacgccagacctctgcagggcagagtgaccatgacccgggacgtgtacag
    cgataccgccttcctggaactgcggagcctgaccgtggatgataccgccgtgtacttct
    gcacccggggcaagaactgcgactacaactgggacttcgagcactggggcagaggc
    acccctgtgatcgtgtcaagcgcgcgtcgaccaagggccccagcgtgttccctctggccc
    ctagcagcaagageacatctggcggaacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgca
    cacctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtgaca
    gtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagccca
    gcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccacac
    ctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttcccccc
    aaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggt
    ggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtggaa
    gtgcacaacgccaagaccaagccaagagaggaacagtacaacagcacctaccgggt
    ggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtg
    caaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggccaa
    gggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctg
    accaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatatcgc
    cgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctg
    tgctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccgg
    tggcagcagggcaacgtgttcagctgctccgtgctgcacgaggccctgcacagccact
    acacccagaagtccctgagcctgagccccggc
    Light chain A Gagatcgtgctgacacagagccctggcaccctgagcctgtctccaggcgagacaac SEQ ID 
    catcatcagctgccggacaagccagtacggcagcctggcctggtatcagcagaggcc NO: 6
    tggacaggcccccagactcgtgatctacagcggcagcacaagagccgccggaatcc
    ccgatagattcagcggctccagatggggccctgactacaacctgaccatcagcaacct
    ggaaagcggcgacttcggcgtgtactactgccagcagtacgagttcttcggccagggc
    accaaggtgcaggtggacatcaagcgtacggtggccgctcccagcgtgttcatcttcc
    cacctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaa
    cttctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcg
    gcaacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctg
    agcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctg
    cgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcga
    gtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgc SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctgaataacctgggtcaggcag NO: 7
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgaggactg
    gtccgtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaatacca
    agaataccttgtatttggagaigaacaacgtgagaactgaagacaccggatattacttct
    gtgccagaacaggcaaatactacgacttctggtccggctatccccctggcgaggaatat
    tttcaagactggggtcagggaacccttgttatcgtgtcctccgacaaaacccatacccag
    gtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaaggtg
    tcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcgcagc
    gtgccaggacagggactgcagtggatgggctggatcagccacgagggcgacaaga
    aagtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacagaagcacca
    acaccgcctacctgcagctgagcggcctgacctctggcgataccgccgtgtactactg
    cgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgacggcg
    ccctgaactgggccgtggatgtggactacctgagcaacctagaattctggggccaggg
    cacagccgtgaccgtgtcatctgataagacccacaccgcttccaccaagggcccatcg
    gtcttccccctggcaccctcctccaagagcacctctgggggcacagcggccctgggct
    gcctggtcaaggactacttccccgaaccggtgacggtgtcgtggaactcaggcgccct
    gaccagcggcgtgcacaccttcccggctgtcctacagtcctcaggactctactccctca
    gcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaacgt
    gaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgtga
    caaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtcagt
    cttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggtca
    catgcgtggtggtggacgtgagccacgaagaccctgaggtcaagttcaactggtatgtt
    gacggcgtggaggtgcataatgccaagacaaagccgcgggaggagcagtacaaca
    gcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctgaatggcaa
    ggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaaccat
    ctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgcc
    gggatgagctgaccaagaatcaagtcagcctgtggtgcctggtaaaaggcttctatccc
    agcgacatcgccgtggagtgggagagcaatgggcagccggagaacaactacaaga
    ccacgcctcccgtgctggactccgacggctccttcttcctctactcaaaactcaccgtgg
    acaagagcaggtggcagcaggggaacgtcttctcatgctccgtgctgcatgaggctct
    gcacagccactacacgcagaagagcctctccctgtctccgggt
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgcc SEQ ID 
    agcatcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctg NO: 8
    gcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagca
    gcagagccagcggcatgcccgatagattttctggcageggcagcgacaaggacttca
    ccctgaagatcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagg
    gcagagagagcccctggacctttggccagggcaccaaggtggacatcaaggacaaa
    acccataccgcatccgaactgactcaggaccctgccgtctctgtggcactgaagcaga
    ctgtgactattacttgccgaggcgactcactgcggagccactacgcttcctggtatcaga
    agaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggccatctgg
    catccccgaccgcttttctggcagtgcatcagggaaccgagccagtctgaccattaccg
    gcgcccaggctgaggacgaagccgattactattgcagctcccgggataagagcggct
    ccagactgagcgtgttcggaggaggaactaaactgaccgtcctcgataagacccatac
    ccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagt
    ccggcacagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagt
    gcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgacc
    gagcaggacagcaaggactccacctacagcctgagcagcaccctgacactgagcaa
    ggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgt
    ctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 2 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqtsgyfftahilfwfrqapgrglewvgwikpqy SEQ ID 
    gavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswalda NO: 9
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtvicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvctlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvscsvlhealhshytqkslslspg
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID 
    psrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikrtvaapsvfifppsde NO: 10
    qlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltls
    kadvekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgr SEQ ID 
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 11
    yydfwsgyppgeeyfqdwgqgtlvivssdkthtqvhltqsgpevrkpgtsv
    kvsckapgntlktydlhwvrsvpgqglqwmgwishegdkkviverfkak
    vtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddgalnwav
    dvdylsnlefwgygtavtvssdkthtastkgpsvfplapsskstsggtaalgcl
    vkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyi
    cnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdt
    lmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynsty
    rvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytlp
    pcrdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsdgs
    fflyskltvdksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain B dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID 
    asgvpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikdkth NO: 12
    taseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgi
    pdrfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteq
    dskdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 2 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID 
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcag NO: 13
    gcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtg
    aacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgag
    atcgcctacatggacatccggggcctgaagcccgatgacaccgccgtgtactactgcg
    ccagagacagaagctacggcgacagcagctgggctctggatgcttggggccagggc
    acaaccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggcccc
    tagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaaggacta
    ctttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgcac
    acctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtgacagt
    gcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagcccag
    caacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccacacct
    gtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttccccccaa
    agcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggtgg
    atgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtggaagt
    gcacaacgccaagaccaagccaagagaggaacagtacaacagcacctaccgggtg
    gtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtgc
    aaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggccaag
    ggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctga
    ccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatatcgcc
    gtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctgt
    gctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccggt
    ggcagcagggcaacgtgttcagctgctccgtgctgcacgaggccctgcacagccact
    acacccagaagtccctgagcctgagccccggc
    Light chain A tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacagagtga SEQ ID 
    ccatcaactgccagacctctcagggcgtgggcagcgacctgcactggtatcagcacaa NO: 14
    gcctggcagagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgt
    gcccagcagattttccggcagcggcttccacaccagcttcaacctgaccatcagcgatc
    tgcaggccgacgacattgccacctactattgtcaggtgctgcagttcacggcagaggc
    agcagactgcacatcaagcgtacggtggccgctcccagcgtgttcatcttcccacctag
    cgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctacc
    cccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacag
    ccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctgagcagca
    ccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtga
    cccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgc SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 15
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaatacca
    agaataccttgtatttggagatgaacaacatgagaactaaaaacaccggatattacttct
    gtgccagaacaggcaaatactacgacttgtggtccggctatccccctggcgaggaatat
    tttcaagactggggtcagggaacccttgttatcgtgtcctccgacaaaacccatacccag
    gtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaaggtg
    tcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcgcagc
    gtgccaggacagggactgcagtggatgggctggatcagccacgagggcgacaaga
    aagtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacagaagcacca
    acaccgcctacctgcagctgagcggcctaacctctggcgataccgccgtgtactactg
    cgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgacggcg
    ccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggccaggg
    cacagccgtgaccgtgtcatctgataagacccacaccgcttccaccaagggcccatcg
    gtcttccccctggcaccctcctccaagagcacctctgggggcacagcggccctgggct
    gcctggtcaaggactacttccccgaaccggtgacggtgtcgtggaactcaggcgccct
    gaccagcggcgtgcacaccttcccggctgtcctacagtcctcaggactctactccctca
    gcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaacgt
    gaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgtga
    caaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtcagt
    cttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggtca
    catgcgtggtggtggacgtgagccacgaagaccctgaggtcaagttcaactggtatgtt
    gacggcgtggaggtgcataatgccaagacaaagccgcgggaggagcagtacaaca
    gcacgtaccgtatggtcagcgtcctcaccgtcctgcaccaggactggctgaatggcaa
    ggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaaccat
    ctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgcc
    gggatgagctgaccaagaatcaagtcagcctgtggtgcctggtaaaaggcttctatccc
    agcgacatcgccgtggagtgggagagcaatgggcagccggagaacaactacaaga
    ccacgcctcccgtgctggactccgacggctccttcttcctctactcaaaactcaccgtgg
    acaagagcaggtggcagcaggggaacgtcttctcatgctccgtgctgcatgaggctct
    gcacagccactacacgcagaagagcctctccctgtctccgggt
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtacacctggcgagagcgcc SEQ ID 
    agcatcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctg NO: 16
    gcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagca
    gcagagccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttca
    ccctgaagatcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagg
    gcagagagagcccctggacctttggccagggcaccaaggtggacatcaaggacaaa
    acccataccgcatccgaactgactcaggaccctgccgtctctgtggcactgaagcaga
    ctgtgactattacttgccgaggcgactcactgcggagccactacgcttcctggtatcaga
    agaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggccatctgg
    catccccgaccgcttttctggcagtgcatcagggaaccgagccagtctgaccattaccg
    gcgcccaggctgaggacgaagccgattactattgcagctcccgggataagagcggct
    ccagactgagcgtgttcggaggaggaactaaactgaccgtcctcgataagacccatac
    ccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagt
    ccggcacagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagt
    gcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgacc
    gagcaggacagcaaggactccacctacagcctgagcagcaccctgacactgagcaa
    ggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgt
    ctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 3 Amino Acid Sequences
    Heavy chain A rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikpqyg SEQ ID 
    avnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswaldaw NO: 17
    gqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgalts
    gvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkt
    htcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyv
    dgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiekt
    iskakgqprepqvctlppsrdeltknqvslscavkgfypsdiavewesngqpenny
    kttppvldsdgsfflvskltvdksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID 
    psrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikrtvaapsvfifppsde NO: 18
    glksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltls
    kadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmg SEQ ID 
    wishegdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgsk NO: 19
    hrlrdyalydddgalnwavdvdylsnlefwgqgtavtvssdkthtevrlves
    ggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgritgpgeg
    wsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgkyydfws
    gyppgeeyfqdwgqgtlvivssdkthtastkgpsvfplapsskstsggtaalg
    clvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqt
    yicnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpk
    dtlmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqyns
    tyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvyt
    lppcrdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsd
    gsfflyskltvdksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain B aseltqdpavsvalkqtvtitcrgdsltshyaswyqkkpgqapvllfygknnrpsgip SEQ ID 
    drfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtdfvlt NO: 20
    qsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassrasgv
    pdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikdkthtrtva
    apsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqds
    kdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 3 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID 
    gtatcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcag NO: 21
    gcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtg
    aacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgag
    atcgcctacatggacatccggggcctgaagcccgatgacaccgccgtgtactactgcg
    ccagagacagaagctacggcgacagcagctgggctctggatgcttggggccagggc
    acaaccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggcccc
    tagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaaggacta
    ctttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgcac
    acctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtgacagt
    gcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagcccag
    caacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccacacct
    gtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttccccccaa
    agcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggtgg
    atgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtggaagt
    gcacaacgccaagaccaagccaagagaggaacagtacaacagcacctaccgggtg
    gtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtgc
    aaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggccaag
    ggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctga
    ccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatatcgcc
    gtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctgt
    gctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccggt
    ggcagcagggcaacgtgttcagctgctccgtgctgcacgaggccctgcacagccact
    acacccagaagtccctgagcctgagccccggc
    Light chain A tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacagagtga SEQ ID 
    ccatcaactgccagacctctcagggcgtgggcagcgacctgcactggtatcagcacaa NO: 22
    gcctggcagagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgt
    gcccagcagattttccggcagcggcttccacaccagcttcaacctgaccatcagcgatc
    tgcaggccgacgacattgccacctactattgtcaggtgctgcagttcttcggcagaggc
    agcagactgcacatcaagcgtacggtggccgctcccagcgtgttcatcttcccacctag
    cgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctacc
    cccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacag
    ccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctgagcagca
    ccctgacactgagcaaggccgactacgagaaacacaaggtgtacgcctacgaagtga
    cccaccagggcctatctagccccgtgaccaagagatcaaccagggcgagtgt
    Heavy chain B caggtgcacctgacacagagcggacccgaagtgcggaagcctggcacctct SEQ ID 
    gtgaaggtgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgca NO: 23
    ctgggtgcgcagcgtgccaggacagggactgcagtggatgggctggatcag
    ccacgagggcgacaagaaagtgatcgtggaacggttcaaggccaaagtgac
    catcgactgggacagaagcaccaacaccgcctacctgcagctgagcggcctg
    acctctggcgataccgccgtgtactactgcgccaagggcagcaagcaccggc
    tgagagactacgccctgtacgacgatgacggcgccctgaactgggccgtgga
    tgtggactacctgagcaacctggaattaggggccagggcacagccgtgacc
    gtgtcatctgacaaaacccataccgaggttagactggtggagtcaggaggggg
    gcttgtgaagcccggtgggtctctccgcctgagagttctgcctccggctttgatt
    tcgataacgcctggatgacctgggtcaggcagcaccaggtaagggactgga
    gtgggtgggaagaatcacaggtccaggcgagggctggtccgtggactacgc
    ggaatctgttaaagggcggtttacaatctcaagggacaataccaagaataccttg
    tatttggagatgaacaacgtgagaactgaagacaccggatattacttctgtgcca
    gaacaggcaaatactacgacttctggtccggctatccccctggcgaggaatattt
    tcaagactggggtcagggaacccttgttatcgtgtcctccgataagacccacac
    cgcttccaccaagggcccatcggtcttccccctggcaccctcctccaagagcac
    ctctgggggcacagcggccctgggctgcctggtcaaggactacttccccgaac
    cggtgacggtgtcgtggaactcaggcgccctgaccagcggcgtgcacacctt
    cccggctgtcctacagtcctcaggactctactccctcagcagcgtggtgaccgt
    gccctccagcagcttgggcacccagacctacatagcaacgtgaatcacaagc
    ccagcaacaccaaggtggacaagaaagttgagcccaaatcttgtgacaaaact
    cacacatgcccaccgtgcccagcacctgaactcctggggggaccgtcagtctt
    cctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggt
    cacatgcgtggtggtggacgtgagccacgaagaccctgaggtcaagttcaact
    ggtatgttgacggcgtggaggtgcataatgccaagacaaagccgcgggagga
    gcagtacaacagcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccagg
    actggctgaatggcaaggagtacaagtgcaaggtctccaacaaagccctccca
    gcccccatcgagaaaaccatctccaaagccaaagggcagccccgagaacca
    caggtgtacaccctgcccccatgccgggatgagctgaccaagaatcaagtcag
    cctgtggtgcctggtaaaaggcttctatcccagcgacatcgccgtggagtggga
    gagcaatgggcagccggagaacaactacaagaccacgcctcccgtgctgga
    ctccgacggctccttcttcactactcaaaactcaccgtggacaagagcaggtg
    gcagcaggggaacgtatctcatgctccgtgctgcatgaggctctscacagcc
    actacacgcagaagagcctctccctgtctccgggt
    Light chain B gcatccgaactgactcaggaccctgccgtctctgtggcactgaagcagactgtgactat SEQ ID 
    tacttgccgaggcgactcactgcggagccactacgcttcctggtatcagaagaaaccc NO: 24
    ggccaggcacctgtgctgctgttctacggaaagaacaataggccatctggcatccccg
    accgcttttctggcagtgcatcagggaaccgagccagtctgaccattaccggcgccca
    ggctgaggacgaagccgattactattgcagctcccaggataaaagcggctccagact
    gagcgtgttcggaagaggaactaaactgaccgtcctcgacaaaacccataccgacttc
    gtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgccagcatc
    agctgcaagagcagccactccctgatccacggcgaccggaacaactacctggcttggt
    acgtgcagaagcccggcagatccccccagctgctgatctacctggccagcagcagag
    ccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttcaccctgaa
    gatcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagggcagag
    agagcccctggacctttgaccagggcaccaaggtggacatcaagaataagacccata
    cccgtacaatggccgctcccagcgtgacatcttcccacctagcgacgagcagctgaa
    gtccggcacagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaa
    gtgcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgtga
    ccgagcaggacagcaaggactccacctacagcctgagcagcaccctgacactgagc
    aaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcct
    gtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 4 Amino Acid Sequences
    Heavy chain A qvqlvqsggqmkkpgesmriscrasgyefidctlnwirlapgkrpewmgwlkpr SEQ ID 
    ggavnyarplqgrvtmtrdvysdtaflelrsltvddtavyfctrgkncdynwdfehw NO: 25
    grgtpvivssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgalts
    gvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkt
    htcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyv
    dgvevhnaktkpreegynstyrvvsvltvlhqdwlngkeykckvsnkalpapiekt
    iskakgqprepqvctlppsrdeltknqvslscavkgfypsdiavewesngqpenny
    kttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A Eivltqspgtlslspgetaiiscrtsqygslawyqqrpgqaprlviysgstraagipdrf SEQ ID 
    sgsrwgpdynltisnlesgdfgvyycqqyeffgqgtkvqvdikrtvaapsvfifpps NO: 26
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsst
    ltlskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgri SEQ ID 
    tgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 27
    yydfwwgyppgeeyfqdwgqgtlvivssdkthtqvhltqgpevrkpgts
    vkvsckapgntlktydlhwvrsvpgqglqwmgwishegdkkviverfka
    kvtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddgalnwa
    vdvdylsnlefwgqgtavtvssdkthtastkgpsvfplapsskstsggtaalg
    clvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqt
    yicnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpk
    dtlmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqyns
    tyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvyt
    lppcrdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsd
    gsfflyskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID 
    asgvpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikdkth NO: 28
    taseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgi
    pdrfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteq
    dskdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 4 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcggccagatgaagaaacccggcgagagcatgcg SEQ ID 
    gatcagctgcagagccagcggctacgagttcatcgactgcaccctgaactggatcaga NO: 29
    ctggcccctggcaagcggcctgagtggatgggatggctgaagcctagaggcggagc
    cgtgaactacgccagacctctgcagggcagagtgaccatgacccgggacgtgtacag
    cgataccgccttcctggaactgcggagcctgaccgtggatgataccgccgtgtacttct
    gcacccggggcaagaactgcgactacaactgggacttcgagcactggggcagaggc
    acccctgtgatcgtgtcaagcgcatcgaccaagggccccagcgtgttccctctggccc
    ctagcagcaagagcacatctgacggaacagccgccagggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgca
    cacctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtgaca
    gtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagccca
    gcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccacac
    ctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttcccccc
    aaagcccaaggacaccctgatgatcagccgaacccccgaagtgacctgcatggtggt
    ggatgtgtcccacgaggaccctgaagtgaagttcaattggtacatggacgacgtggaa
    gtgcacaacgccaagaccaagccaagagaggaacagtacaacagcacctaccgggt
    ggtgtccgtgctgaccgtgagcaccaggactggctgaacggcaaagagtacaagtg
    caaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggccaa
    gggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctg
    accaagaaccagatgtccctgagagtaccatgaaaggcttctacccctccgatatcgc
    cgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctg
    tgctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccgg
    tggcagcagggcaacgtgttcagagaccgtgatgcacgaggccctgcacaaccact
    acacccagaagtccagagcctgagccccggc
    Light chain A Gagatcgtgctgacacagagccaggcaccctgagcctgtctccaggcgagacagc SEQ ID 
    catcatcagtgccggacaagccagtacggcagcctggcctggtatcagcagaggcc NO: 30
    tggacaggcccccagactcgtgatctacagcggcagcacaagagccgccggaatcc
    ccgatagattcagcggctccagatggggccagactacaacctgaccatcagcaacct
    ggaaagcgacgacttcgacgtgtactactgccagcaatacgagttcttcggccagggc
    accaaggtgcaggtggacatcaagcgtacggtggccgctcccagcgtgttcatcttcc
    cacctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaa
    cttctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcg
    gcaacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctg
    agcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctg
    cgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcga
    gtgt
    Heavy chain B gaggttagactggtggagtcaggagaggggcttgtgaagcccggtgggtctctccgc SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 31
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaatacca
    agaataccttgtatttggagatgaacaacgtgagaactgaagacaccggatattacttct
    gtgccagaacaggcaaatactacgacttctggtggggctatccccctggcgaggaata
    ttttcaagactggggtcagggaacccttgttatcgtgtcctccgacaaaacccataccca
    ggtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaaggt
    gtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcgcag
    cgtgccaggacagggactgcagtggatgggctggatcagccacgagggcgacaag
    aaaggatcgtggaacggttcaaggccaaagtgaccatcgactgggacagaagcacc
    aacaccgcctacctacaactgagcggcctaacctctggcgataccgccgtgtactact
    gcgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgacggc
    gccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggccagg
    gcacagccgtgaccgtgtcatctgataagacccacaccgcttccaccaagggcccatc
    ggtcttccccctggcaccctcctccaagagcacctctgggggcacagcggccctggg
    ctgcctggtcaaggactacttccccgaaccggtgacggtgtcgtggaactcaggcgcc
    ctgaccagcggcgtgcacaccttcccggctgtcctacagtcctcaggactctactccct
    cagcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaac
    gtgaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgtg
    acaaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtcag
    tcttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggtca
    catgcgtggtggtggacgtgagccacgaagaccctgaggtcaagttcaactggtatgtt
    gacggcgtagaggtgcataataccaagacaaagccgcgggaggagcagtacaaca
    gcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctgaatagcaa
    ggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaaccat
    ctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgcc
    gggatgagctgaccaagaatcaagtcagcctgtggtgcctggtaaattggcttctatccc
    agcgacatcgccgtggagtgggagagcaatgggcagccggagaacaactacaaga
    ccacgcctcccgtgctggactccgacggctccttcttcctctactcaaaactcaccgtgg
    acaagagcaggtggcagcaggggaacgtcttctcatgctccgtgctgcatgaggctct
    gcacagccactacacgcagaagagcctctccctgtctccgggt
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgcc SEQ ID 
    agcatcagctgcaagagcagccactccctgatccacggcgaccgaaacaactacctg NO: 32
    gcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagca
    gcagagccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttca
    ccctgaagatcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagg
    gcagagagagcccctggacctttggccagggcaccaaggtggacatcaaggacaaa
    acccataccgcatccgaactgactcaggaccctgccgtctctgtggcactgaagcaga
    ctgtgactattacttgccgaggcgactcactgcggagccactacgcttcctagtatcaga
    agaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggccatctgg
    catccccgaccgcttttctggcagtgcatcagggaaccgagccagtctgaccattaccg
    gcgcccaggctgaggacgaagccgattactattgcagctcccgggataagagcggct
    ccagactgagcgtgttcggaggaggaactaaactgaccgtcctcgataagacccatac
    ccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagt
    ccggcacagcctctatcgtgtgcctgctgaacaacttctacccccgcgaggccaaagt
    gcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgacc
    gagcaggacagcaaggactccacctacagcctgagcagcaccctgacactgagcaa
    ggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgt
    ctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 5 Amino Acid Sequences
    Heavy chain A Qvqlvqsggqmkkpgesmriscrasgyefidctlnwirlapgkrpewmgwlkpr SEQ ID 
    ggavnyarplqgrvtmtrdvysdtaflelrsltvddtavyfctrgkncdynwdfehw NO: 33
    grgtpvivssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgalts
    gvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkt
    htcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyv
    dgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiekt
    iskakgqprepqvctlppsrdeltknqvslscavkgfypsdiavewesngqpenny
    kttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A Eivltqspgtlslspgetaiiscrtsqygslawyggrpgqaprlviysgstraagipdrfs SEQ ID 
    gsrwgpdynltisnlesgdfgvyycqqyeffgqgtkvqvdikrtvaapsvfifppsd NO: 34
    eqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt
    lskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgr SEQ ID 
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 35
    yydfwwgyppgeeyfqdwgqgtlvivssdkthtqmqlqesgpglvkpse
    tlsltcsvsgasisdsywswirrspgkglewigyvhksgdtnyspslksrvnl
    sldtsknqvslslvaataadsgkyycartlhgrriygivafnewftyfymdvw
    gngtqvtvssdkthtastkgpsvfplapsskstsggtaalgclvkdyfpepvtv
    swnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntk
    vdkkvepkscdkthtcppcpapellggpsvflfppkpkdtlmisrtpevtcv
    vvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrvvsvltvlhqd
    wlngkeykckvsnkalpapiektiskakgqprepqvytlppcrdeltknqv
    slwclvkgfypsdiavewesngqpennykttppvldsdgsfflyskltvdks
    rwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B Sdisvapgetariscgekslgsravqwyqhragqapsliiynnqdrpsgiperfsgsp SEQ ID 
    dspfgttatltitsveagdeadyychiwdsrvptkwvfgggttltvldkthtaseltqdp NO: 36
    avsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgipdrfsgsas
    gnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtvaapsvfifp
    psdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysls
    stltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 5 Nucleotide Sequences
    Heavy chain A Caggtgcagctggtgcagtctggcggccagatgaagaaacccggcgagagcatgc SEQ ID 
    ggatcagctgcagagccagcggctacgagttcatcgactgcaccctgaactggatcag NO: 37
    actggcccctggcaagcggcctgagtggatgggatggctgaagcctagaggcggag
    ccgtgaactacgccagacctctgcagggcagagtgaccatgacccgggacgtgtaca
    gcgataccgccttcctggaactgcggagcctgaccgtggatgataccgccgtgtacttc
    tgcacccggggcaagaactgcgactacaactgggacttcgagcactggggcagagg
    cacccctgtgatcgtgtcaagc
    gcgtcgaccaagggccccagcgtgttccctctggcccctagcagcaagagcacatct
    ggcggaacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtgacc
    gtgtcctagaattctgacgccctgaccagcggcgtgcacacctttccagctgtgctgca
    gtccagcggcctgtacagcctgagcagcgtcgtgacagtgcccagcagctctctggg
    cacccagacctacatctgcaacgtgaaccacaagcccagcaacaccaaggtggacaa
    gaaggtggaacccaagagctgcgacaagacccacacctgtcccccttgtcctgcccc
    cgaactgctgggaggcccttccgtgttcctgttccccccaaagcccaaggacaccctg
    atgatcagccggacccccgaagtgacctgcgtggtggtggatgtgtcccacgaggac
    cctgaagtgaagttcaattggtacgtggacggcgtggaagtgcacaacgccaagacca
    agccaagagaggaacagtacaacagcacctaccgggtggtgtccgtgctgaccgtgc
    tgcaccaggactggctgaacggcaaagagtacaagtgcaaggtatccaacaaggccc
    tgcctgcccccatcgagaaaaccatcagcaaggccaagggccagccccgcgaaccc
    caggtgtgcacactgcccccaagcagggacgagctgaccaagaaccaggtgtccctg
    agctgtgccgtgaaaggcttctacccctccgatatcgccgtggaatgggagagcaacg
    gccagcccgagaacaactacaagaccaccccccctgtgctggacagcgacggctcat
    tcttcctggtgtccaaactgacagtggacaagtcccggtggcagcagggcaacgtgttc
    agctctccgtgatgcacgaggccctgcacaaccactacacccagaagtccctgagc
    ctgagccccggc
    Light chain A Gagatcgtgctgacacagagccctggcaccctgagcctgtctccaggcgagacagc SEQ ID 
    catcatcagctgccggacaagccagtacggcagcctggcctggtatcagcagaggcc NO: 38
    tggacaggcccccagactcgtgatctacagcggcagcacaagagccgccggaatcc
    ccgatagattcagcggctccagatggggccctgactacaacctgaccatcagcaacct
    ggaaagcggcgacttcggcgtgtactactgccagcagtacgagttcttcggccagggc
    accaaggtgcaggtggacatcaagcgtacggtggccgctcccagcgtgttcatcttcc
    cacctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaa
    cttctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcg
    gcaacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctg
    agcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctg
    cgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcga
    gtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccagtgggtctctccgc SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 39
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaatacca
    agaataccttgtatttggagatgaacaacgtgagaactgaagacaccggatattacttct
    gtgccagaacaggcaaatactacgacttctggtggggctatccccctggcgaggaata
    ttttcaagactggggtcaaggaacccttgttatcgtgtcctccgacaaaacccataccca
    gatacagctgcaggagagcggccctggactcgtgaagcccagcgagaccctgaacc
    tgacatgcagcgtgagcggcgccagcatcagcgacagctactggagctggatcagga
    ggagccctggcaagggcctggagtggatcggctacgtgcacaagagcggcgacacc
    aactacagcccctccctgaagtccagggtgaacctgtccctggacaccagcaagaacc
    aggtgagcctgtccctggtggctgccacagctgctgacagcggcaagtactactgtgc
    caggaccctgcacggcaggaggatctacggcatcgtggccttcaacgagtggttcacc
    tacttctacatggacgtgtggggcaacggcacccaggtgaccgtgagctccgataaga
    cccacaccgcttccaccaagggcccatcggtcttccccctggcaccctcctccaagag
    cacctctgggggcacagcggccctgggctgcctggtcaaggactacttccccgaacc
    ggtgacggtgtcgtggaactcaggcgccctgaccagcggcgtgcacaccttcccggc
    tgtcctacagtcctcaggactctactccctcagcagcgtggtgaccgtgccctccagca
    gcttgggcacccagacctacatctgcaacgtgaatcacaagcccagcaacaccaaggt
    ggacaagaaagttgagcccaaatcttgtgacaaaactcacacatgcccaccgtgccca
    gcacctgaactcctggggggaccgtcagtcttcctcttccccccaaaacccaaggaca
    ccctcatgatctcccggacccctgaggtcacatgcgtggtggtggacgtgagccacga
    agaccctgaggtcaagttcaactggtatgttgacggcgtggaggtgcataatgccaaga
    caaagccgcgggaggagcagtacaacagcacgtaccgtgtggtcagcgtcctcacc
    gtcctgcaccaggactggctgaatggcaaggagtacaagtgcaaggtctccaacaaa
    gccctcccagcccccatcgagaaaaccatctccaaagccaaagggcagccccgaga
    accacaggtgtacaccctgcccccatgccgggatgagctgaccaagaatcaagtcag
    cctgtggtgcctggtaaaaggcttctatcccagcgacatcgccgtggagtgggagagc
    aatgggcagccggagaacaactacaagaccacgcctcccgtgctggactccgacgg
    ctccttcttcctctactcaaaactcaccgtggacaagagcaggtggcagcaggggaac
    gtcttctcatgctccgtgatgcatgaggctctgcacaaccactacacgcagaagagcct
    ctccctgtctccaggt
    Light chain B tccgacatcagcgtggcccccggagagacagccaggatctcctgcggcgagaagag SEQ ID 
    cctgggaagcagggctgtgcagtagtaccaacacagggccggacaggctcccagcc NO: 40
    tgatcatctacaacaaccaggacaggcccagcggcatccctgagaggttcagcggaa
    gccccgacagccccttcggaaccacagccaccctgaccatcacaagcgtggaagcc
    ggcgacgaggccgactactactgccacatctgggacagcagggtgcccaccaagtg
    ggtgtttggcggcggcaccaccctgaccgtgctggacaaaacccataccgcatccga
    actgactcaggaccctgccgtctctgtggcactgaagcagactgtgactattacttgccg
    aggcgactcactgcggagccactacgcttcctggtatcagaagaaacccggccaggc
    acctgtgctgctgttctacggaaagaacaataggccatctggcatccccgaccgcttttc
    tggcagtgcatcagggaaccgagccagtctgaccattaccggcgcccaggctgagga
    cgaagccgattactattgcagctcccgggataagagcggctccagactgagcgtgttc
    ggaggaggaactaaactgaccgtcctcgataagacccatacccgtacggtggccgct
    cccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggcacagcctctgt
    cgtgtgcctgagaacaacttctacccccgcgaggccaaagtgcagtggaaggtggac
    aacgccctgcagagcggcaacaaccaggaaagcgtgaccgagcaggacagcaag
    gactccacctacagcctgagcagcaccctgacactgagcaaggccgactacgagaag
    cacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaag
    agcttcaaccggggcgagtgt
    Binding Protein 6 Amino Acid Sequences
    Heavy chain A Qvqlvqsggqmkkpgesmriscrasgyefidctlnwirlapgkrpewmgwlkpr SEQ ID 
    ggavnyarplqgrvtmtrdvysdtaflelrsltvddtavyfctrgkncdynwdfehw NO: 41
    grgtpvivssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgalts
    gvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkt
    htcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyv
    dgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiekt
    iskakgqprepqvctlppsrdeltknqvslscavkgfypsdiavewesngqpenny
    kttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A Eivltqspgtlslspgetaiiscrtsqygslawyqqrpgqaprlviysgstraagipdrfs SEQ ID 
    gsrwgpdynltisnlesgdfgvyycqqyeffgqgtkvqvdikrtvaapsvfifppsd NO: 42
    eqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt
    lskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmg SEQ ID 
    wishegdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgsk NO: 43
    hrlrdyalydddgalnwavdvdylsnlefwgqgtavtvssdkthtevrlves
    ggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgritgpgeg
    wsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgkyydfw
    wgyppgeeyfqdwgqgtlvivssdkthtastkgpsvfplapsskstsggtaa
    lgclvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgt
    qtyicnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppk
    pkdtlmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqy
    nstyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepq
    vytlppcrdeltknqvstwclvkgfypsdiavewesngqpennykttppvl
    dsdgsfflyskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B Aseltqdpavsvalkqvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgi SEQ ID 
    pdrfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtdfv NO: 44
    ltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassrasg
    vpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqatkvdikdkthtrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteq
    dskdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 6 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcggccagatgaagaaacccggcgagagcatgcg SEQ ID 
    gatcagctgcagagccagcggctacgagttcatcgactgcaccctgaactggatcaga NO: 45
    ctggcccctggcaaacggcctgagtggatgggatggctgaagcctagaggcggagc
    cgtgaactacgccagacctctgcagggcagagtgaccatgacccgggacgtgtacag
    cgataccgccttcctggaactgcggagcctgaccgtggatgataccgccgtgtacttct
    gcacccggggcaagaactgegactacaactgggacttcgagcactggggcagaggc
    acccctgtgatcgtgtcaagcgcgtcgaccaagggccccagcgtgttccctctggccc
    ctagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgca
    cacctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtgaca
    gtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagccca
    gcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccacac
    ctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttcccccc
    aaagcccaaggacaccctgatgatcagccgaacccccgaagtgacctgcgtggtggt
    ggatgtgtcccacgaggaccctgaagtgaagttcaattggtacatggacgacgtggaa
    gtgcacaacgccaagaccaagccaagagaggaacagtacaacagcacctaccgggt
    ggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtg
    caaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggccaa
    gggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctg
    accaagaaccaggtgtccctgagctgtgccatgaaaggcttctacccctccgatatcgc
    cgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctg
    tgctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccgg
    tggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccact
    acacccagaagtccctgagcctgagccccggc
    Light chain A gagatcgtgctgacacagagccctggcaccctgagcctgtctccaggcgagacagcc SEQ ID 
    atcatcagctgccggacaagccagtacggcagcctggcctggtatcagcagaggcct NO: 46
    ggacaggcccccagactcgtgatctacagcggcagcacaagagccgccggaatccc
    cgatagattcagcggctccagatggggccctgactacaacctgaccatcagcaacctg
    gaaagcggcgacttcggcgtgtactactgccagcagtacgagttcttcggccagggca
    ccaaggtgcaggtggacatcaagcgtacggtggccgctcccagcatgttcatcttccc
    acctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaac
    ttctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcgg
    caacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctga
    gcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgc
    gaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcga
    gtgt
    Heavy chain B caggtgcacctgacacaaagcggacccgaagtgcggaagcctagcacctctgtgaa SEQ ID 
    ggtgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcg NO: 47
    cagcgtgccaggacagggactgcagtggatgggctggatcagccacgagggcgac
    aagaaagtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacagaagc
    accaacaccgcctacctgcagctgagcggcctgacctctggcgataccgccgtgtact
    actgcgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgac
    ggcgccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggcc
    agggcacagccgtgaccgtgtcatctgacaaaacccataccgaggttagactggtgga
    gtcaggaggggggcttgtgaagcccggtgggtctctccgcctgagctgttctgcctcc
    ggctttgatttcgataacgcctggatgacctgggtcaggcagcctccaggtaagggact
    ggagtgggtgggaagaatcacaggtccaggcgagggctggtccgtggactacgcgg
    aatctgttaaagggcggtttacaatctcaagggacaataccaagaataccttgtatttgga
    gatgaacaacgtgagaactgaagacaccagatattacttctgtgccagaacaggcaaa
    tactacgacttctggtggggctatccccctggcgaggaatattttcaagactggggtcag
    ggaacccttgttatcgtgtcctccgataagacccacaccgcttccaccaagggcccatc
    ggtcttccccctggcaccctcctccaagagcacctctgggggcacagcggccctggg
    ctgcctggtcaaggactacttccccgaaccggtgacggtgtcgtggaactcaggcgcc
    ctgaccagcggcgtgcaccttcccggctcgtcctacagtcctcaggactctactccct
    cagcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaac
    gtgaatcacaagcccagcaacaccaaggtgaacaagaaagttgagcccaaatcttgtg
    acaaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtcag
    tcttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggtca
    catgcgtggtggtggacgtgagccacgaagaccctgaggtcaagttcaactggtatgtt
    gacggcgtggaggtgcataatgccaagacaaagccgcgggaggagcagtacaaca
    gcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctgaatggcaa
    ggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaaccat
    ctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgcc
    gggatgagctgaccaagaatcaagtcagcctgtggtgcctggtaaaaggcttctatccc
    agcgacatcgccgtggagtgggagagcaatgggcagccggagaacaactacaaga
    ccacgcctcccgtgctggactccgacggctccttcttcctctactcaaaactcaccgtgg
    acaagagcaggtggcagcaggggaacgtcttctcatgctccgtgatgcatgaggctct
    gcacaaccactacacgcagaagagcctctccctgtctccgggt
    Light chain B Gcatccgaactgactcaggaccctgccgtctctgtggcactgaagcagactgt SEQ ID 
    gactattacttgccgaggcgactcactgcggagccactacgcttcctggtatca NO: 48
    gaagaaacccggccaggcacctgtgctgctgttctacggaaagaacaatagg
    ccatctggcatccccgaccgcttttctggcagtgcatcagggaaccgagccagt
    ctgaccattaccggcgcccaggctgaggacgaagccgattactattgcagctc
    ccgggataagagcggctccagactgagcgtgttcggaggaggaactaaactg
    accgtcctcgacaaaacccataccgacttcgtgctgacccagagccctcacag
    cctgagcgtgacacctggcgagagcgccagcatcagctgcaagagcagcca
    ctccctgatccacggcgaccggaacaactacctggcttggtacgtgcagaagc
    ccggcagatccccccagctgctgatctacctggccagcagcagagccagcgg
    cgtgcccgatagattttctggcagcggcagcgacaaggacttcaccctgaagat
    cagccgggtggaaaccgaggacgtgggcacctactactgtatgcagggcaga
    gagagcccctggacctttggccagggcaccaaggtggacatcaaggataaga
    cccatacccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacg
    agcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctacc
    cccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggc
    aacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagc
    ctgagcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgt
    acgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttc
    aaccggggcgagtgt
    Binding Protein 7 Amino Acid Sequences
    Heavy chain A Qvqlvqsggqmkkpgesmriscrasgyefidctlnwirlapgkrpewmgwlkpr SEQ ID 
    ggavnyarplqgrvtmtrdvysdtaflelrsltvddtavyfctrgkncdynwdfehw NO: 49
    grgtpvivssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgalts
    gvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkt
    htcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyv
    dgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiekt
    iskakgqprepqvctlppsrdeltknqvslscavkgfypsdiavewesngqpenny
    kttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A Eivltqspgtlslspgetaiiscrtsqygslawyqqrpgqaprlviysgstraagipdrfs SEQ ID 
    gsrwgpdynltisnlesgdfgvyycqqyeffgqgtkvqvdikrtvaapsyfifppsd NO: 50
    eqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt
    lskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B qmqlqesgpglvkpsetlsltcsvsgasisdsywswirrspgkglewigyvh SEQ ID 
    ksgdtnyspslksrvnlsldtsknqvslslvaataadsgkyycartlhgrriygi NO: 51
    vafnewftyfymdvwgngtqvtvssdkthtQvhltqsgpevrkpgtsvkv
    sckapgntlktydlhwvrsvpgqglqwmgwishegdkkviverfkakvti
    dwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddgalnwavdv
    dylsnlefwgqgtavtvssdkthtastkgpsvfplapsskstsggtaalgclvk
    dyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicn
    vnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdtlm
    isrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrv
    vsvltvlhqdwlngkeykekvsnkalpapiektiskakgqprepqvytlpp
    crdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsf
    flyskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B Dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID 
    asgvpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikdkth NO: 52
    tsdisvapgetariscgekslgsravqwyqhragqapsliiynnqdrpsgiperfsgs
    pdspfgttatltitsveagdeadyychiwdsrvptkwvfgggttltvldkthtrtvaaps
    vfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnqesvteqdskd
    styslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 7 Nucleotide Sequences
    Heavy chain A caggtgcagaggtgcagtctggcggccagatgaagaaacccggcgagagcatacg SEQ ID 
    gatcagctgcagagccagcggctacgagttcatcgactgcaccctgaactggatcaga NO: 53
    ctggcccctggcaagcggcctgagtggatgggatggagaagcctagaggcggagc
    cgtgaactacgccagacctctgcagggcagagtgaccatgacccgggacgtgtacag
    cgataccgcctcctggaactgcggagcctgaccgtggatgataccgccgtgtacttct
    gcacccggggcaagaactgcgactacaactgggacttcgagcactggggcagaggc
    acccctgtgatcgtgtcaagcgcgtcgaccaagggccccagcgtgttccctctggccc
    ctagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgca
    cacctttccagagtgagcagtccagcggcctgtacagcctgagcagcgtcgtgaca
    gtacccagcagctactgagcacccagacctacatctgcaacgtgaaccacaagccca
    acaacaccaaggtagacaagaaggtgaaacccaagagctacgacaagacccacac
    ctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttcccccc
    aaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggt
    ggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtggaa
    gtgcacaacgccaagaccaagccaagagaggaacagtacaacagcacctaccgggt
    ggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtg
    caagatgtccaacaaggccctgcctacccccatcgagaaaaccatcagcaaggccaa
    gggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctg
    accaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatatcgc
    cgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctg
    tgctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccgg
    tggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccact
    acacccagaagtccctgagcctgagccccggc
    Light chain A gagatcgtgctgacacagagccctggcaccctgagcctgtctccaggcgagacagcc SEQ ID 
    atcatcagagccggacaagccagtacggcagcctagcctggtatcaacagaggcct NO: 54
    ggacaggcccccagactcgtgatctacagcggcagcacaagagccgccggaatccc
    cgatagattcagcggaccagatggggccctgactacaacctgaccatcagcaacctg
    gaaagcggcgacttcggcgtgtactactgccagcagtacgagttcttcggccagggca
    ccaaggtgcaggtggacatcaagcgtacggtggccgctcccagcgtgttcatcttccc
    acctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaac
    ttctacccccgcgaggccaaagtgcagtggaaaggtggacaacgccctgcagagcgg
    caacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctga
    gcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgc
    gaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcga
    gtgt
    Heavy chain B cagatgcagctgcaggagagcggccctggactcgtgaagcccagcgagaccctgag SEQ ID 
    cctgacatgcagcgtgagcggcgccagcatcagcgacagctactggagctggatcag NO: 55
    gaggagccctggcaagggcctggagtggatcggctacgtgcacaagagcgacgac
    accaactacagcccctccctgaagtccagggtgaacctgtccctggacaccagcaaga
    accaggtgagcctgtccctggtggctgccacagctgctgacagcggcaagtactactg
    tgccaggaccctgcacggcaggaggatctacggcatcgtggccttcaacgagtggttc
    acctacttctacatggacgtggggcaacggcacccaggtgaccgtgagctccgaca
    aaacccatacccaggtgcacctgacacagagcggacccgaagtgcggaagcctggc
    acctagtgaagatgtcctgcaagacccaggcaacaccctgaaaacctacgacctgc
    actgggtgcgcagcgtgccaggacagggactgcagtggatgggctggatcagccac
    gagggcgacaagaaagtgatcgtggaacggttcaaggccaaagtgaccatcgactgg
    gacagaagcaccaacaccgcctacctgcagctgagcggcctgacctctggcgatacc
    gccgtgtactactgcgccaagggcagcaagcaccggctgagagactacgccctgtac
    gacgatgacggcgccctgaactgggccgtggatgtggactacctgagcaacctggaa
    ttctgaggccaggacacaaccatgaccatgtcatctgataagacccacaccgcttcca
    ccaagggcccatcggtcttccccctggcaccctcctccaagagcacctctgggggcac
    agcggccctgggctgcctggtcaaggactacttccccgaaccggtgacggtgtcgtgg
    aactcaggcgccctgaccagcggcgtgcacaccttcccggctgtcctacagtcctcag
    gactctactccctcagcagcgtggtgaccgtgccctccagcttgcttgggcacccagac
    ctacatagcaacgtgaatcacaagcccagcaacaccaaggtgaacaagaaagttga
    gcccaaatcttgtgacaaaactcacacatgcccaccgtgcccagcacctgaactcagg
    ggggaccgtcagtcttcctcttccccccaaaacccaaggacaccctcatgatctcccgg
    acccctgaggtcacatgcgtggtggtggacgtgagccacgaagaccctgaggtcaag
    ttcaactggtatgttgacggcgtggaggtgcataatgccaagacaaagccgcgggagg
    agcagtacaacagcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactg
    gctgaatggcaaggaatacaagtgcaaggtctccaacaaagccctcccagcccccat
    cgagaaaaccataccaaagccaaagggcagccccgagaaccacaggtgtacaccc
    tgcccccatgccgaaataagctgaccaaaaatcaagtcagcctgtggtacctggtaaa
    aggctctatcccagcgacatcgccgtggagtgggagagcaatgggcagccggaga
    acaactacaagaccacgcctcccgtgctggactccgacggctccttcttcctctactcaa
    aactcaccgtggacaagagcaggtggcagcaggggaacgtcttctcatgctccgtgat
    gcatgaggctctgcacaaccactacacgcagaagagcctctccctgtctccgggt
    Light chain B Gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgaga SEQ ID 
    gcgccagcatcagctgcaagagcagccactccctgatccacggcgaccggaa NO: 56
    caactacctggcttggtacgtgcagaagcccggcagatccccccagctgctga
    tctacctggccagcagcagagccagcggcgtgcccgatagattttctggcagc
    ggcagcgacaaggacttcaccctgaagatcagccgggtggaaaccgaggac
    gtgggcacctactactgtatgcagggcagagagagcccctggacctttggcca
    gggcaccaaggtggacatcaaggacaaaacccatacctccgacatcagcgtg
    gcccccggagagacagccaggatctcctgcggcgagaagagcctgggaag
    cagggctgtgcagtggtaccaacacagggccggacaggctcccagcctgatc
    atctacaacaaccaggacaggcccageggcatccctgagaggttcagcggaa
    gccccgacagccccttcggaaccacagccaccctgaccatcacaagcgtgga
    agccggcgacgaggccgactactactgccacatctgggacagcagggtgcc
    caccaagtgggtgtttggcggcggcaccaccctgaccgtgctggataagaccc
    atacccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagc
    agctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctaccccc
    gcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaac
    agccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctg
    agcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtac
    gcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaa
    ccggggcgagtgt
    Binding Protein 8 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikpqy SEQ ID 
    gavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswalda NO: 57
    wgqgttvvvsaastkapsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    cktiskakgqprepqvctlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsffvskltvdksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain A Yihvtqspsslsvsigdrvtincqtsqvgsdlhwyqhkpgrapkllihhtssvedg SEQ ID 
    vpsrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikrtvaapsvfifppsd NO: 58
    eqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt
    lskadyekhkvyacevthqglsspvtksthrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqpgkglewvgr SEQ ID 
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 59
    yydfwwgyppgeeyfqdwgqgtlvivssdkthtqvqlvesgggvvqpgt
    slrlscaasqfrfdgygmhwvrqapgkglewvasishdgikkyhaekvwg
    rftisrdnskntlylqmnslrpedtalyycakdlredeceewwsdyydfgkq
    lpcaksrgglvgiadnwgqgtmvtvssdkthtastkgpsvfplapsskstsg
    gtaalgclvkdyfpepvtvswnsgaltsgvhtfpavlssglyslssvvtvpss
    slgtqtyicnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflf
    ppkpkdtlmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpr
    eeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqpr
    epqvytlppcrdeltknqvslwelvkgfypsdiavewesngqpennykttp
    pvldsdgsfflyskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B Qsvltqppsvsaapgqkvtiscsgntsnignnfvswyqqrpgrapqlliyetdkrps SEQ ID 
    gipdrfsasksgtsgtlaitglqtgdeadyycatwaaslssarvftgtkvivldkthtas NO: 60
    eltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgipdr
    fsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtvaap
    svfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdsk
    dstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 8 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID 
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggca NO: 61
    ggcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccg
    tgaacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcg
    agatcgcctacatggacatccggggcctgaagcccgatgacaccgccgtgtactactg
    cgccagagacagaagctacggcgacagcagctgggctctggatgcttggggccagg
    gcacaaccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggc
    ccctagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaagg
    actactttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtg
    cacacctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtga
    cagtacccaacaactctctgggcacccagacctacatagcaacgtgaaccacaagc
    ccagcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagaccca
    cacctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttccc
    cccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggt
    ggtggatgtgtcccacgaggaccctgaagtgaattcaattggtacgtggacggcgtg
    gaagtgcacaacgccaagaccaagccaagagaggaacagtacaacagcacctacc
    gggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtaca
    agtgcaaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaagg
    ccaagggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacga
    gctgaccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgat
    atcgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccc
    cccctgtgctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaag
    tcccggtggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgcac
    aaccactacacccagaagtccctgagcctgagccccggcaag
    Light chain A Tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgaca SEQ ID 
    gagtgaccatcaactgccagacctctcagggcgtgggcagcgacctgcactg NO: 62
    gtatcagcacaagcctggcagagcccccaagctgctgatccaccacacaagc
    agcgtggaagatggcgtgcccagcagattttccggcagcggcttccacacca
    gcttcaacctgaccatcagcgatctgcaggccgacgacattgccacctactatt
    gtcaggtgctgcagttcttcggcagaggcagcagactgcacatcaagcgtacg
    gtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtcc
    ggcacagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaa
    agtgcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaa
    gcgtgaccgagcaggacagcaaggactccacctacagcctgagcagcaccc
    tgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagt
    gacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcga
    gtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgc SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 63
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaatacca
    agaataccttgtatttggagatgaacaacgtgagaactgaagacaccggatattacttct
    gtgccagaacaggcaaatactacgacttctggtggggctatccccctggcgaggaata
    ttttcaagactggggtcagggaacccttgttatcgtgtcctccgacaaaacccataccca
    ggtgcagttggtggagtctgggggaggcgtggtccagcctgggacgtccctgagact
    ctcctgtgcagcctctcaattcaggtttgatggttatgacatgcactgggtccgccaggc
    cccaggcaaggggctggagtgggtggcatctatatcacatgatggaattaaaaagtat
    cacgcagaaaaagtgtggggccgcttcaccatctccagagacaattccaagaacaca
    ctgtatctacaaatgaacagcctgcgacctgaggacacggctctctactactgtgcgaa
    agatttgcgagaagacgaatgtgaagagtggtggtcggattattacgattttgggaaac
    aactcccttgcgcaaagtcacgcggcggcttggttggaattgctgataactggggcca
    agggacaatggtcaccgtctcttcagataagacccacaccgcttccaccaagggccca
    tcggtcttccccctggcaccctcctccaagagcacctctgggggcacagcggccctgg
    gctgcctggtcaaggactacttccccgaaccggtgacggtgtcgtggaactcaggcgc
    cctgaccagcggcgtgcacaccttcccggctgtcctacagtcctcaggactctactccc
    tcagcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaa
    cgtgaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgt
    gacaaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtca
    gtcttcctcttccccccaaaacccaaggacaccctcatgatctcccgaacccctgaggt
    cacatgcgtggtggtggacgtgagccacgaagaccctgaggtcaagttcaactggtat
    gttgacggcgtggaggtgcataatgccaagacaaagccgcgggaggagcagtacaa
    cagcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctgaatggc
    aaggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaacc
    atctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgc
    cgggatgagctgaccaagaatcaagtcagcctgtggtgcctggtaaaaggcttctatcc
    cagcgacatcgccgtggagtgggagagcaatgggcagccggagaacaactacaag
    accacgcctcccgtgctggactccgacggctccttcttcctctactcaaaactcaccgtg
    gacaagagcaggtggcagcaggggaacgtcttctcatgctccgtgatacatgaggct
    ctgcacaaccactacacgcagaagagcctctccctgtctccgggt
    Light chain B Cagtctgtgctgacgcagccgccctcagtgtctgcggccccaggacagaagg SEQ ID 
    tcaccatctcctgactggaaacacctccaacattggcaataattttgtgtcctggt NO: 64
    atcaacagcgccccggcagagccccecaactcctcatttatgaaactgacaag
    cgaccctcagggattcctgaccgattctctgcttccaagtctggtacgtcaggca
    ccctggccatcaccgggctgcagactggggacgaggccgattattactgcgc
    cacatgggctgccagcctgagttccgcgcgtgtatcggaactgggaccaagg
    tcatcgtcaggacaaaacccataccgcatccgaactgactcaggaccctgcc
    gtctctgtggcactgaagcagactgtgactattacttgccgaggcgactcactgc
    ggagccactacgcttcctggtatcagaagaaacccggccaggcacctgtgctg
    ctgttctacggaaagaacaataggccatctggcatccccgaccgcttttctggca
    gtgcatcagggaaccgagccagtctgaccattaccggcgcccaggctgagga
    cgaagccgattactattgcagctcccgggataagagcggctccagactgagcg
    tgttcggaggaggaactaaactgaccgtcctcgataagacccatacccgtacg
    gtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtcc
    ggcacagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaa
    agtgcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaa
    gcgtgaccgagcaggacagcaaggactccacctacagcctgagcagcaccc
    tgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagt
    gacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcga
    gtgt
    Binding Protein 9 Amino Acid Sequences
    Heavy chain A Qvqlvqsggqmkkpgesmriscrasgyefidctlnwirlapgkrpewmgwlkpr SEQ ID 
    ggavnyarplqgrvtmtrdvysdtaflelrsltvddtavyfctrgkncdynwdfehw NO: 65
    grgtpvivssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgalts
    gvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkt
    htcppcpapellggpsvflfppkpkdtlmisrtpevrcvvvdvshedpevkfnwyv
    dgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiekt
    iskakaqprepqvctlppsrdeltknqvslscavkgfypsdiavewesngqpenny
    kttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A Eivltqspgtlslspgetaiiscrtsqygslawyqqrpgqaprlviysgstraagipdrfs SEQ ID 
    gsrwgpdynltisnlesgdfgvyycqqyeffgqgtkvqvdikrtvaapsvfifppsd NO: 66
    eqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt
    lskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqpgkglewvgr SEQ ID 
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 67
    yydfwwgyppgeeyfqdwgqgtlvivssdkthtqvqlvesgggvvqpgt
    slrlscaasqfrfdgygmhwvrqapgkglewvasishdgikkyhaekvwg
    rftisrdnskntlylqmnslrpedtalyycakdlredeceewwsdyydfgkq
    lpcaksrgglvgiadnwgqgtmvtvssdkthtastkgpsvfplapsskstsg
    gtaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpss
    slgtqtyicnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflf
    ppkpkdtlmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpr
    eeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqpr
    epqvytlppcrdeltknqvslwclvkgfypsdiavewesngqpennykttp
    pvldsdgsfflyskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B qsvltqppsvsaapgqkvtiscsgntsnignnfvswyqqrpgrapqlliyetdkrps SEQ ID 
    gipdtgsasksgtsgtlaitglqtgdeadyycatwaaslssarvfgtgtkvivldkthtas NO: 68
    eltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgipdr
    fsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtvaap
    svfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdsk
    dstyslsstlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 9 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcggccagatgaagaaacccggcgagagcatgcg SEQ ID 
    gatcagctgcagagccagcggctacgagttcatcgadgcaccctgaactggatcaga NO: 69
    ctggcccctggcaagcggcctgagtggatgggatggctgaagcctagaggcggagc
    cgtgaactacgccagacctctgcagggcagagtgaccatgacccgggacgtgtacag
    cgataccaccttcctagaactacgaagcctgaccgtagatgataccgccgtgtacttct
    gcacccggggcaagaactgcgactacaactgggacttcgagcactggggcagaggc
    acccctgtgatcgtgtcaagcgcgtcgaccaagggccccagcgtgttccctctggccc
    ctagcagcaagageacatctggcggaacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgca
    cacctttccagctgtactacagtccagcggcctgtacaacctgagcagcgtcgtgaca
    gtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagccca
    gcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccacac
    ctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttcccccc
    aaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggt
    ggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtggaa
    gtacacaacaccaagaccaagccaagagaggaacagtacaacageacctaccggat
    ggtgtccgtgctgaccgtgctgcaccaggactgactgaacggcaaagagtacaagtg
    caaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggccaa
    gggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctg
    accaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatatcgc
    cgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctg
    tgaggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccgg
    tggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccact
    acacccagaagtccctgagcctgagccccggc
    Light chain A gagatcgtgctgacacagagccctggcaccctgagcctgtctccaggcgagacagcc SEQ ID 
    atcatcagctgccggacaagccagtacggcagcctggcctggtatcagcagaggcct NO: 70
    ggacaggcccccagactcgtgatctacagcggcagcacaagagccgccggaatccc
    cgatagattcagcggaccagatggggccctgactacaacctgaccatcagcaacctg
    gaaagcggcgacttcggcgtgtactactgccagcagtacgagttcttcggccagggca
    ccaagatgcaggtggacatcaagcgtacggtggccgctcccagcgtgttcatcttccc
    acctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaac
    ttctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcgg
    caacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctga
    gcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgc
    gaagtgacccaccagggcctgtctagccccatgaccaagagatcaaccggggcga
    gtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctaccgc SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 71
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaatacca
    agaataccttgtatttggagatgaacaacatgagaactgaagacaccggatattacttct
    gtaccagaacaggcaaatactacgacttctggtggggctatccccctggcgaggaata
    ttttcaagactggggtcagggaacccttgttatcgtgtcctccgacaaaacccataccca
    ggtgcagttggtggagtctgggggaggcgtggtccagcctgggacgtccctgagact
    ctcctgtgcagcctctcaattcaggtttgatggttatggcatgcactgggtccgccaggc
    cccaggcaaggggctggagtgggtggcatctatatcacatgatggaattaaaaagtatc
    acgcagaaaaagtgtagggccgcttcaccatctccagagacaattccaagaacacact
    gtatctacaaataaacaacctgcgacctgaggacacggctctctactactgtgcgaaag
    atttgcgagaagacgaatgtgaagagtggtggtcggattattacgattttgggaaacaac
    tcccttgcgcaaagtcacgcggcggcttggttggaattgctgataactggggccaagg
    gacaatggtcaccgtacttcagataagacccacaccgcttccaccaagggcccatcg
    gtcttccccctggcaccctcctccaagagcacctctgggggcacagcggccctgggct
    gcctggtcaaggactacttccccgaaccggtgacggtgtcgtggaactcaggcgccct
    gaccagcggcgtgcacaccttcccggctgtcctacagtcctcaggactctactccctca
    gcagcgtggtgaccgtaccctccagcagcttgggcacccagacctacatctgcaacgt
    gaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgtga
    caaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtcagt
    cttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggtca
    catgcgtggtggtggacgtgagccacgaagaccctgaggtcaagttcaactggtatgtt
    gacggcgtggaggtgcataatgccaagacaaagccgcgggaggagcagtacaaca
    gcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctgaatggcaa
    ggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaaccat
    ctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgcc
    gggatgagctgaccaagaatcaagtcagcctgtggtgcctggtaaaaggcttctatccc
    agcgacatcgccgtggagtgggagagcaatgggcagccggagaacaactacaaga
    ccacgcctcccgtgctgaactccgacggctccttatcctctactcaaaactcaccgtgg
    acaagagcaggtggcagcaggggaacgtcttctcatgctccgtgatgcatgaggctct
    gcacaaccactacacgcagaagagcctctccctgtctccgggt
    Light chain B cagtctgtgctgacgcagccgccctcagtatctgcgaccccaggacagaaggtcacc SEQ ID 
    atctcctgactggaaacacctccaacattggcaataattttgtgtcctggtatcaacagc NO: 72
    gccccggcagagccccccaactcctcatttatgaaactgacaagcgaccctcagggat
    tcctgaccgattctctgcttccaagtctggtacgtcaggcaccetggccatcaccgggct
    gcagactggggacgaggccgattattactgcgccacatgggctgccagcctgagttcc
    gcgcgtgtcttcggaactgggaccaaggtcatcgtcctg
    gacaaaacccataccgcatccgaactgactcaggaccctgccgtctctgtggcactga
    agcagactgtgactattacttgccgaggcgactcactgcggagccactacgcttcagg
    tatcagaagaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggc
    catctggcatccccgaccgcttttaggcagtacatcagggaaccgagccagtctgacc
    attaccggcacccaaactgaggacgaagccaattactattgcaactcccgggataaga
    gcggctccagactgagcgtgttcggaggaggaactaaactgaccgtcctcgataagac
    ccatacccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagcag
    ctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggc
    caaagtgcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagc
    gtgaccgagcaggacagcaaggactccacctacagcctgagcagcaccctgacact
    gagcaaggccgactacgagaagcacaagatgtacacctgcgaagtgacccaccagg
    gcctatctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 10 Amino Acid Sequences
    Heavy chain A Qvqlvqsggqmkkpgesmriscrasgyefidctlnwirlapgkrpewmgwlkpr SEQ ID 
    ggavnyarplqgrvtmtrdvysdtaflelrsltvddtavyfctrgkncdynwdfehw NO: 73
    grgtpvivssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgalts
    gvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkt
    htcppepapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyv
    dgvevnnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiekt
    iskakaqprepqvctlppsrdeltknqvslscavkgypsdiavewesngqpenny
    kttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A Eivltqspgtlslspgetaiiscrtsqygslawyqqrpgqaprlviysgstraagipdrfs SEQ ID 
    gsrwgpdynltisnlesgdfgvyycqqyeffgqgtkvqvdikrtvaapsvfifppsd NO: 74
    eqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt
    lskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B qvqlvesgggvvqpgtslrlscaasqfrfdgygmhwvrqapgkglewvas SEQ ID 
    ishdgikkyhaekvwgrftisrdnskntlylqmnslrpedtalyycakdlred NO: 75
    eceewwsdyydfgkqlpcaksrgglvgiadnwgqgtmvtvssdkthtevr
    lvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgritgp
    gegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgkyyd
    fwwgyppgeeyfqdwgqgtlvivssdkthtastkgpsvfplapsskstsgg
    taalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpsss
    lgtqtyicnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfp
    pkpkdtlmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpree
    qynstyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqpre
    pqvytlppcrdeltknqvslwclvkgfypsdiavewesngqpennykttpp
    vldsdgsfflyskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B aseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgip SEQ ID 
    drfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtqsvlt NO: 76
    qppsvsaapgqkvtiscsgntsnignnfvswyqqrpgrapqlliyetdkrpsgipdr
    fsasksgtsgtlaitglqtgdeadyycatwaaslssarvfgtgtkvivldkthtrtvaaps
    vfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskd
    styslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 10 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcggccagatgaagaaacccggcgagagcatgcg SEQ ID 
    gatcagctgcagagccagcggctacgagttcatcgactgcaccctgaactggatcaga NO: 77
    ctggcccctggcaagcggcctgagtggatgggatggctgaagcctagaggcggagc
    cgtgaactacgccagacctctgcagggcagagtgaccatgacccgggacgtgtacag
    cgataccgccttcctggaactgcggagcctgaccgtggatgataccgccgtgtacttct
    gcacccggggcaagaactgcgactacaactgggacttcgagcactggggcagaggc
    acccctgtgatcgtgtcaagcgcgtcgaccaagggccccagcgtgttccctctggccc
    ctagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgca
    cacctttccagctgtgctgcagtccagcggcctgtacaacctgagcagcgtcgtgaca
    gtacccagcagctctctgagcacccagacctacatctgcaacgtgaaccacaagccc
    agcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccaca
    cctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttccccc
    caaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtg
    gtggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtgg
    aagtacacaacgccaagaccaagccaagagaggaacagtacaacagcacctaccg
    ggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaa
    gtgcaaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggc
    caagggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgag
    ctgaccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatat
    cgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccc
    cctgtgctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtc
    ccggtggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaa
    ccactacacccagaagtccctgagcctgagccccggc
    Light chain A gagatcgtgctgacacagagccctggcaccctgagcctgtctccaggcgagacagcc SEQ ID 
    atcatcagctgccggacaagccagtacggcagcctggcctggtatcagcagaggcct NO: 78
    ggacaggcccccagactcgtgatctacagcggcagcacaagagccgccggaatccc
    cgatagattcagcggctccagatggggccctgactacaacctgaccatcagcaacctg
    gaaagcggcgacttcggcgtgtactactgccagcagtacgagttcttcggccagggca
    ccaaggtgcaggtggacatcaagcgtacggtggccgctcccagcgtgttcatcttccc
    acctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaac
    ttctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcgg
    caacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctg
    agcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctg
    cgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcg
    agtgt
    Heavy chain B caggtgcagttggtggagtctgggggaggcgtggtccagcctgggacgtccctgaga SEQ ID 
    ctctcctgtgcagcctctcaattcaggtttgatggttatggcatgcactgggtccgccag NO: 79
    gccccaggcaaggggctggagtgggtggcatctatatcacatgatggaattaaaaagt
    atcacgcagaaaaagtgtggggccgcttcaccatctccagagacaattccaagaacac
    actgtatctacaaatgaacagcctgcgacctgaggacacggctctctactactgtgcga
    aagatttgcgagaagacgaatgtgaagagtggtggtcggattattacgattttgggaaa
    caactcccttgcgcaaagtcacgcggcggcttggttggaattgctgataactggggcc
    aagggacaatggtcaccgtctcttcagacaaaacccataccgaggttagactggtgga
    gtcaggaggggggcttgtgaagcccggtgggtctctccgcctgagctgttctgcctcc
    ggctttgatttcgataacgcctggatgacctgggtcaggcagcctccaggtaagggact
    ggagtgggtgggaagaatcacaggtccaggcgagggctggtccgtggactacgcgg
    aatctgttaaagggcggtttacaatctcaagggacaataccaagaataccttgtatttgga
    gatgaacaacgtgagaactgaagacaccggatattacttctgtgccagaacaggcaaa
    tactacgacttctggtccggctatccccctggcgaggaatattttcaagactggggtcag
    ggaacccttgttatcgtgtcctccgataagacccacaccgcttccaccaagggcccatc
    ggtcttccccctggcaccctcctccaagagcacctctgggggcacagcggccctggg
    ctacctggtcaaggactacttccccgaaccggtgacggtatcatggaactcaggcgcc
    ctgaccagcagcgtgcacaccttcccggctgtcctacagtcctcaggactctactccct
    cagcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaa
    cgtgaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgt
    gacaaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtca
    gtcttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggt
    cacatgcgtggtggtggacgtgagccacgaagaccctgaggtcaagttcaactggtat
    gttgacggcgtggaggtgcataataccaagacaaagccgcgggaggagcagtacaa
    cagcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctgaatggc
    aaggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaacc
    atctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgc
    cgggatgagctgaccaagaatcaagtcagcctgtggtgcctggtaaaaggcttctatcc
    cagcgacatcgccgtggagtgggagagcaatgggcagccggagaacaactacaag
    accacgcctcccgtgctgaactccgaeggctcatatcctctactcaaaactcaccatg
    gacaagaacaggtgacaacaagggaacatcttctcataaccatgatgcataaggct
    ctacacaaccactacacgcagaagaacctaccagtaccgggt
    Light chain B gcatccgaactgactcaggaccctgccgtctctgtggcactgaagcagactgt SEQ ID 
    gactattacttgccgaggcgactcactgcggagccactacgcttcctggtatca NO: 80
    gaagaaacccggccaggcacctgtgctgctgttctacggaaagaacaatagg
    ccatctggcatccccgaccgctatctggcagtgcatcagggaaccgagccagt
    ctgaccattaccggcgcccaggctgaggacgaagccgattactattgcagctc
    ccgggataagagcggctccagactgagcgtgttcggaggaggaactaaactg
    accgtcctcgacaaaacccatacc
    cagtctgtgctgacgcagccgccctcagtgtctgcggccccaggacagaagg
    tcaccatctcctgctctggaaacacctccaacattggcaataattttgtgtcctggt
    atcaacagcgccccggcagagccccccaactcctcatttatgaaactgacaag
    cgaccctcagggattcctgaccgattctctgcttccaagtctggtacgtcaggca
    ccctggccatcaccgggctgcagactggggacgaggccgattattactgcgc
    cacatgggctgccagcctgagttccgcgcgtgtcttcggaactgggaccaagg
    tcatcgtcctg
    gataagacccatacccgtacggtggccgctcccagcgtgacatcttcccacct
    agcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaa
    cttctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcag
    agcggcaacagccaggaaagcgtgaccgagcaggacagcaaggactccac
    ctacagcctgagcagcaccctgacactgagcaaggccgactacgagaagca
    caaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgacc
    aagagcttcaaccggggcgagtgt
    Binding Protein 11 Amino Acid Sequences
    Heavy chain A Rahlvgsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikpqy SEQ ID 
    gavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswalda NO: 81
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpeakfnw
    yvdgvevhnaktkpreegynstvvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvctlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslsp
    g
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID 
    psrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikrtvaapsvfifppsde NO: 82
    qlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltls
    kadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgri SEQ ID 
    tgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 83
    yydfwwgyppgeeyfqdwgqgtlvivssdkthtgvhltqsgpevrkpgts
    vkvsckapgntlktydlhwvrsvpgqglqwmgwishegdkkviverfka
    kvtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddgalnwa
    vdvdylsnlefwgqgtavtvssdkthtastkgpsvfplapsskstsggtaalg
    clvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqt
    yicnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpk
    dtlmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqyns
    tyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgrqprepqvyt
    lppcerdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsd
    gsfflyskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrsplliylassr SEQ ID 
    asgvpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikdkth NO: 84
    taseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgi
    pdrfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteq
    dskdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 11 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID 
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcag NO: 85
    gcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtg
    aacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgag
    atcgcctacatggacatccggagcctgaagcccgatgacaccgccgtatactactgca
    ccagagacagaagctacggcgacagcagctgggctctggatgcttggggccagggc
    acaaccgtggtggtgtctgccgcctctacaatttgggccccagcgtgttccctctggcccc
    tagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaaggacta
    ctttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgcac
    acctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtgacagt
    gcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagcccag
    caacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccacacct
    gtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttccccccaa
    agcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggtgg
    atgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtggaagt
    gcacaacgccaagaccaagccaagagaggaacagtacaacagcacctaccgggtg
    gtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtgc
    aaggtgtccaacaagaccctgcctgcccccatcgagaaaaccatcagcaaggccaag
    ggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctga
    ccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatatcgcc
    gtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctgt
    gctggacagcgacggctcattcttcaggtgtccaagetgacagtggacaagtcccggt
    ggcagcagagcaacatgttcagctgaccgtgatacacgaggccctacacaaccact
    acacccagaagtccctgagcctgagccccggcaag
    Light chain A tacatccacgtgacccagagccecagcagcctgtccgtgtccatcggcgacag SEQ ID 
    agtgaccatcaactgccagacctctcagggcgtgggcagcgacctgcactggt NO: 86
    atcagcacaagcctggcagagcccccaagagctgatccaccacacaagcag
    cgtggaagatggcgtgcccagcagattttccggcagcggcttccacaccagct
    tcaacctgaccatcagcgatctgcaggccgacgacattgccacctactattgtca
    ggtgctgcagttcttcggcagaggcagcagactgcacatcaagcgtacggtgg
    ccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggc
    acagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtg
    cagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgt
    gaccgagcaggacagcaaggactccacctacagcctgagcagcaccctgac
    actgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacc
    caccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgc SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 87
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtagactacgcggaatctgttaaagagcggtttacaatacaagagacaatacca
    agaataccttgtatttggagatgaacaacgtgagaactgaagacaccggatattacttct
    gtgccagaacaggcaaatactacgacttctggtggggctatccccctggcgaggaata
    ttttcaagactggggtcagggaacccttgttatcgtgtcctccgacaaaacccataccca
    ggtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaaggt
    gtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcgcag
    cgtgccaggacagggactgcagtggatgggaggatcagccacgagggcgacaag
    aaagtgatcgtagaacggttcaaggccaaagtgaccatcgactgggacagaagcacc
    aacaccgcctacctgcagctgagcggcctgacctctggcgataccgccgtgtactact
    gcgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgacggc
    gccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggccagg
    gcacagccgtgaccgtgtcatctgataagacccacaccgcttccaccaagggcccatc
    ggtcttccccctggcaccctcctccaagagcacctctgggggcacagcggccctggg
    ctgcctggtcaaggactacttccccgaaccggtgacgatgtcgtggaactcaggcgcc
    ctgaccagcggcgtgcacaccttcccggctgtcctacagtcctcaggactctactccct
    cagcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaac
    gtgaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgtg
    acaaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtcag
    tcttcctcttccccccaaaacccaaggacaccacatgatacccggacccctgaggtca
    catgcatggtggtagacgtgagccacgaagaccctgaggtcaagttcaactggtatgtt
    gacggcgtggaggtgcataatgccaagacaaagccgcgggaggagcagtacaaca
    gcacgtaccgtgtggtcagectcctcaccgtcctgcaccaggactggctgaatggcaa
    ggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaaccat
    ctccaaagccaaagggcagcccegagaaccacaggtgtacaccctgcccccatgcc
    gggatgaactgaccaagaatcaagtcagcctgtggtgcctgataaaaggcttctatccc
    agcgacatcgccgtggagtgggagagcaatgggcagccggagaacaactacaaga
    ccacgcctcccgtgctggactccgacggctccttcttcctctactcaaaactcaccgtag
    acaagagcaggtggcagcaggggaacgtcttctcatgctccgtgatgcatgaggctct
    gcacaaccactacacgcagaagagcctctccctgtctccgggt
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgaga SEQ ID 
    gcgccagcatcagctgcaagagcagccactccctgatccacggcgaccggaa NO: 88
    caactacctggcttggtacgtgcagaagcccggcagatccccccagctgctga
    tctacctggccagcagcagagccagcgcgtgcccgatagattttctggcagc
    ggcagcgacaaggacttcaccctgaagatcagccgggtggaaaccgaggac
    gtgggcacctactactgtatgcagggcagagagagcccctggacctttggcca
    gggcaccaaggtggacatcaaggacaaaacccataccgcatccgaactgact
    caggaccctgccgtctctgtggcactgaagcagactgtgactattacttgccga
    ggcgactcactgcggagccactacgcttcctggtatcagaagaaacccggcca
    ggcacctgtgctgctgttctacggaaagaacaataggccatctggcatccccga
    ccgcttttctggcagtgcatcagggaaccgagccagtctgaccattaccggcgc
    ccaggctgaggacgaagccgattactattgcagctcccgggataagagcggct
    ccagactgagcgtgttcggaggaggaactaaactgaccgtcctcgataagacc
    catacccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgag
    cagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctacccc
    cgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaa
    cagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcct
    gagcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgta
    cgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttca
    accggggcgagtgt
    Binding Protein 12 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikpqy SEQ ID 
    gavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswalda NO: 89
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslsp
    g
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID 
    psrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikrtvaapsvfifppsde NO: 90
    qlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltls
    kadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgri SEQ ID 
    tgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 91
    yydfwwgyppgeeyfqdwgqgtlvivssdkthtqmqlqesgpglvkpse
    tlsltcsvsgasisdsywswirrspgkglewigyvhksgdtnyspslksrvnl
    sldtsknqvslslvaataadsgkyycartlhgrriygivafnewftyfymdvw
    gngtqvtvssdkthtastkgpsvfplapsskstsggtaalgclvkdyfpepvtv
    swnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntk
    vdkkvepkscdkthtcppcpapellggpsvflfppkpkdtlmisrtpevtcv
    vvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrvvsvltvlhqd
    wlngkeykckvsnkalpapiektiskakgqprepqvytlppcrdeltknqv
    slwclvkgfypsdiavewesngqpennykttppvldsdgsfflyskltvdks
    rwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B sdisvapgetariscgekslgsravqwyqhragqapsliiynnqdrpsgiperfsgsp SEQ ID 
    dspfgttatltitsveagdeadyychiwdsrvptkwvfgggttltvldkthtaseltqdp NO: 92
    avsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgipdrfsgsas
    gnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthrttvaapsvfifp
    psdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysls
    stltlskadyekhkvyacevthqglsspytksfnrgec
    Binding Protein 12 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID 
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcag NO: 93
    gcccctggcagaggactggaatgggttgggatggatcaagccccagtatggcgccgtg
    aacttcggcggaggcttccgggatagagtaaccctgacccgggacgtgtaccgcgag
    atcgcctacatggacatccggggcctgaagcccgatgacaccgccgtgtactactgcg
    ccagagacagaagctacggcgacagcagctgggctctggatgcttggggccagggc
    acaaccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggcccc
    tagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaaggacta
    ctttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgcac
    acctttccaactatgctgcagtccagcggcctgtacagcctaagcagcgtcgtgacagt
    gcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagcccag
    caacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccacacct
    gtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttccccccaa
    agcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggtgg
    atgtgtcccacgaaaaccctgaagtaaaattcaattagtacgtggacggcgtgaaaat
    gcacaacgccaagaccaagccaagagaagaacaatacaacagcacctaccgggta
    gtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtgc
    aaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggccaag
    ggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctga
    ccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatatcgcc
    gtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctgt
    gctggacagcgacgactcattatcaggtatccaagagacaatggacaagtcccggt
    ggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccact
    acacccagaagtccctgagcctgagccccggcaag
    Light chain A tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacag SEQ ID 
    agtgaccatcaactgccagacctacagggcgtgggcagcgacctgcactggt NO: 94
    atcagcacaagectggcagagcccccaagctgctgatccaccacacaagcag
    cgtggaagatggcgtgcccagcagattttccggcagcggcttccacaccagct
    tcaacctgaccatcagcgatctgcaggccgacgacattgccacctactattgtca
    ggtgctgcagttcttcggcagaggcagcagactgcacatcaagcgtacggtgg
    ccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggc
    acagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtg
    cagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgt
    gaccgagcaggacagcaaggactccacctacagcctgagcagcaccctgac
    actgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacc
    caccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B gaggttagactggtgaagtcaagagaggggatgtgaagcccaatggatactccac SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 95
    cctccaggtaaggggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtggactacgcggaatctgttaaagggcggatacaatctcaagggacaatacca
    agaataccctgtatttggagatgaacaacgtgagaactgaagacaccggatattacttct
    gtgccagaacaggcaaatactacgacttctggtggggctatccccctggcgaggaata
    ttttcaagactggggtcagggaacccttgttatcgtgtcctccgacaaaacccataccca
    gatgcagctgcaggagagcggccctggactcgtgaagcccagcgagaccctgagcc
    tgacatgcagcgtgagcggcgccagcatcagcgacagctactggagctggatcagga
    ggagccctggcaagggcctggagtggatcggctacgtgcacaagageggegacacc
    aactacagcccctccctgaagtccagggtgaacctgtccctggacaccagcaagaacc
    aggtgagcctgtccctggtggctgccacagctgctgacagcggcaagtactactgtgc
    caggaccctacacggcaggaggatctacggcatcgtagccttcaacgagtagttcacc
    tacttctacatgaacatgtggggcaacggcacccaggtgaccgtgagctccgataaga
    cccacaccgcttccaccaagggcccatcggtcttccccctggcaccctcctccaagag
    cacctctgggggcacagcggccctgggctgcctggtcaaggactacttccccgaacc
    ggtgacggtgtcgtggaactcaggcgccctgaccagcggcgtgcacaccttcccggc
    tgtcctacagtcctcaggactctactccctcagcagcgtggtgaccgtgccctccagca
    gcttgggcacccagacctacatctgcaacgtgaatcacaagcccagcaacaccaaggt
    ggacaagaaagttgagcccaaatcttgtgacaaaactcacacatgcccaccgtgccca
    gcacctgaactcctggggggaccgtcagtcttcctcttccccccaaaacccaaggaca
    ccctcatgatctcccggacccctgaggtcacatgcgtggtggtggacgtgagccacga
    agaccctgaggtcaagttcaactggtatgttgacggcgtggaggtgcataatgccaaga
    caaagccgcgggaggagcagtacaacagcacgtaccgtgtggtcagcgtcctcacc
    gtcctgcaccaggactggctgaatagcaaggagtacaagtgcaagataccaacaaa
    gccctcccagcccccatcgagaaaaccatctccaaagccaaagggcagccccgaga
    accacaggtgtacaccctgcccccatgccgggatgagctgaccaagaatcaagtcag
    cctgtggtgcctggtaaaaggcttctatcccagcgacatcgccgtggagtgggagagc
    aatgggcagccggagaacaactacaagaccacgcctcccgtgctggactccgacgg
    ctccttcttcctctactcaaaactcaccatggacaagagcaggtagcagcaggggaac
    gtcttctcatactccatgatgcatgaggctctgcacaaccactacacacagaagagcct
    ctccctgtctccgggt
    Light chain B tccgacatcagcgtggcccccggagagacagccaggatctcctgcggcgag SEQ ID 
    aagagcctgggaagcagggctgtgcagtggtaccaacacagggccggacag NO: 96
    gctcccagcctgatcatctacaacaaccaggacaggcccagcggcatccctga
    gaggttcagcggaagccccgacagccccttcggaaccacagccaccctgacc
    atcacaagcgtggaagccggcgacgaggccgactactactgccacatctggg
    acagcagggtgcccaccaagtgggtgtttggcggcggcaccaccctgaccgt
    gctggacaaaacccataccgcatccgaactgactcaggaccctgccgtctctgt
    ggcactgaagcagactgtgactattacttgccgaggcgactcactgcggagcc
    actacgcttcctggtatcagaagaaacccggccaggcacctgtgctgctgttcta
    cggaaagaacaataggccatctggcatccccgaccgatttctggcagtgcatc
    agggaaccgagccagtctgaccattaccggcgcccaggctgaggacgaagc
    cgattactattgcagctcccgggataagagcggctccagactgagcgtgacgg
    aggaggaactaaactgaccgtcctcgataagacccatacccgtacggtggccg
    ctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggcaca
    gcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcag
    tggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgacc
    gagcaggacagcaaggactccacctacagcctgagcagcaccctgacactga
    gcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccacc
    agggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 13 Amino Acid Sequences
    Heavy chain A qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmgwishe SEQ ID 
    gdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydd NO: 97
    dgalnwavdvdylsnlefwgqgtavtvssastkgpsvfplapsskstsggtaalgcl
    vkdvfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvn
    hkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdtlmisrtpevt
    cvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrvvsvltylhqdwl
    ngkeykckvsnkalpapiektiskakgqprepqvctlppsrdeltknqvslscavkg
    fypsdiavewesngqpennykttppvldsdgsfflvskltvdksrwqqgnvfscsv
    mhealhnhytqkslslspg
    Light chain A dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID 
    asgvpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikrtva NO: 98
    apsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqd
    skdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgr SEQ ID 
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 99
    yydfwwgyppgeeyfqdwgqgtlvivssdkthtqmqlqesgpglvkpse
    tlsltcsvsgasisdsywswirrspgkglewigyvhksgdtnyspslksrvnl
    sldtskngyslslvaataadsgkyycartlhgrriygivafnewftyfymdv
    wgngtqvtvssdkthtastkgpsvfplapsskstsggtaalgclvkdyfpepv
    tvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsn
    tkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdttmisrtpevt
    evvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrvvsvltvlh
    qdwlngkeykckvsnkalpapiektiskakgqprepqvytlppcrdeltkn
    qvslwclvkgfypsdiavewesngqpennykttppvldsdgsfflyskltv
    dksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B sdisvapgetariscgekslgsravgwyqhragqapsliiynnqdrpsgiperfsgsp SEQ ID 
    dspfgttatltitsveagdeadyychiwdsrvptkwvfgggttltvldkthtaseltqd NO: 100
    pavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgipdrfsgs
    asgnrasltitgaqacdeadyycssrdksgsrlsvfgggtkltvldkthtrtvaapsvfif
    ppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstys
    lsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 13 Nucleotide Sequences
    Heavy chain A caggtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaa SEQ ID 
    ggtgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgagtgcg NO: 101
    cagcgtgccaggacagggactacagtggatgaactagatcaaccacgaggacgac
    aagaaagtgatcatggaacggttcaaggccaaagtgaccatcgactaggacagaagc
    accaacaccgcctacctgcagctgagcggcctgacctctggcgataccgccgtgtact
    actgcgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgac
    ggcgccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggc
    cagggcacagccgtgaccgtgtcatctgcttcgaccaagggccccagcgtgttccctc
    tggcccctagcagcaagagcacataggcggaacagccgccagggctgcctcgtga
    aggactactacccgagcccgtgaccgtgtcaggaattaggcgccctgaccagcgg
    cgtgcacacctttccaactatgctgcagtccagcggcctgtacagcctgagcagcgtc
    gtgacagtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccaca
    agcccagcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagac
    ccacacctgtcccccagtcctgcccccgaactgctgggaggcccttccgtgttcctgtt
    ccccccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcg
    tggtggtggatgtatcccacgaggaccagaaatgaagttcaattggtacgtagacgg
    cgtggaagtgcacaacgccaagaccaagccaagagaggaacagtacaacagcacct
    accgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagt
    acaagtgcaaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagca
    aggccaagggccagccccgcgaaccccaggtgtgcacactgcccccaagcaggga
    cgagagaccaagaaccaggtgtccctgagagtgccgtgaaaggatctacccacc
    gatatcgccgtagaatgggagagcaacagccagcccgagaacaactacaagaccac
    cccccctgtgctggacagcgacggctcattcttcctggtgtccaagctgacagtggaca
    agtcccggtggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgc
    acaaccactacacccagaagtccctgagcctgagccccggcaag
    Light chain A gacacgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgcc SEQ ID 
    agcatcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctg NO: 102
    gcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagca
    gcagagccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttca
    ccctgaagatcagccgggtggaaaccgaggacgtaggcacctactactgtatgcagg
    gcagagagaacccaggacattggccagagcaccaaagtggacatcaaacgtacg
    gtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggca
    cagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtg
    gaaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagca
    ggacagcaaggactccacctacagcctgagcagcaccagacactgagcaaggccg
    actacgagaagcacaaggtgtacgcctacgaagtgacccaccaaggcctgtctagcc
    ccgtgaccaagagatcaaccgaggcgagtat
    Heavy chain B gaggttagactggtggagtcaggaggggggcagtgaagcccggtgggtctctccgc SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 103
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaatacca
    agaataccttgtatttggagatgaacaacgtgagaactgaagacaccggatattacttct
    gtgccagaacaggcaaatactacgacttctggtggggctatccccctggcgaggaata
    ttttcaagactggggtcagggaacccttgttatcgtgtcctccgacaaaacccataccca
    gatgcagctgcaggagagcggccctggactcgtgaagcccagcgagaccctgagcc
    tgacatgcagcgtgagcggcgccagcatcagcgacagctactggagctggatcagg
    aggagccctggcaagggcctggagtggatcggctacgtgcacaagagcggcgaca
    ccaactacagcccctccctgaagtccagagtgaacctatccaggacaccagcaaga
    accaggtgagcctgtccaggtggctgccacagctgctgacagcggcaagtactactg
    tgccaggaccctgcacggcaggaggatctacggcatcgtggccttcaacgagtggttc
    acctacttctacatggacgtgtggggcaacggcacccaggtgaccgtgagctccgata
    agacccacaccgcttccaccaagggcccatcggtcttccccctggcaccctcctccaa
    gagcacctctgggggcacagcggccctgggctgcctggtcaaggactacttccccga
    accggtgacggtgtcgtggaactcaggcgccctgaccagcggcgtgcacaccttccc
    ggctgtcctacaatcctcaggactctactccctcagcagcgtggtgaccgtgccacca
    gcagcttgggcacccagacctacatctgcaacgtgaatcacaagcccagcaacacca
    aggtggacaagaaagttgagcccaaatcttgtgacaaaactcacacatgcccaccgtg
    cccagcacctgaactcctggggggaccgtcagtcttcctcttccccccaaaacccaag
    gacaccctcatgatctcccggacccctgaggtcacatgcgtggtggtggacgtgagcc
    acgaagaccctgaggtcaagttcaactggtatgttgacggcgtggaggtgcataatgc
    caagacaaagccgcgggaggagcagtacaacagcacgtaccgtgtggtcagcgtcc
    tcaccgtcctgcaccaggactggctgaatggcaaggagtacaaatgcaaggtctccaa
    caaagccctcccagcccccatcgagaaaaccatctccaaagccaaagggcagcccc
    gagaaccacaggtgtacaccctgcccccatgccgggatgagctgaccaagaatcaag
    tcagcctgtggtgcctggtaaaaggcttctatcccagcgacatcgccgtggagtggga
    gagcaatgggcagccggagaacaactacaagaccacgcctcccgtgctggactccg
    acggctccttcttcctctactcaaaactcaccgtggacaagagcaggtggcagcaggg
    gaacgtcttctcatgctccgtgatacatgaggctctacacaaccactacacgcagaaga
    gcctctccctgtctccgggt
    Light chain B tccgacatcagcgtggcccccggagagacagccaggatctcctgcggcgag SEQ ID 
    aagagcctgggaagcagggctgtgcagtggtaccaacacagggccggacag NO: 104
    gctcccagcctgatcatctacaacaaccaggacaggcccagcggcatccctg
    agaggttcagcggaagccccgacagccccttcggaaccacagccaccctga
    ccatcacaagcgtggaagccggegacgaggccgactactactgccacatctg
    ggacagcagggtgcccaccaagtgggtgtttggcggcggcaccaccctgac
    cgtgctggacaaaacccataccgcatccgaactgactcaggaccctgccgtct
    ctgtggcactgaagcagactgtgactattacttgccgaggcgactcactgcgga
    gccactacgcttcctggtatcagaagaaacccggccaggcacctgtgctgctgt
    tctacggaaagaacaataggccatctggcatccccgaccgcttttctggcagtg
    catcagggaaccgagccagtctgaccattaccggcgcccaggctgaggacg
    aagccgattactattgcagctcccgggataagagcggctccagactgagcgtg
    ttcggaggaggaactaaactgaccgtcctcgataagacccatacccgtacggt
    ggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccg
    gcacagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaa
    gtgcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaag
    cgtgaccgagcaggacagcaaggactccacctacagcctgagcagcaccct
    gacactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagt
    gacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcga
    gtgt
    Binding Protein 14 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikpqy SEQ ID 
    gavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswalda NO: 105
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslsp
    g
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedg SEQ ID 
    vpsrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikrtvaapsvfifppsd NO: 106
    eqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt
    lskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmg SEQ ID 
    wishegdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgsk NO: 107
    hrlrdyalydddgalnwavdvdylsnlefwgqgtavtvssdkthtevrlves
    ggglvkpggslrlscsasgfdfdnawmtwvalppgkgtewvgritgpgeg
    wsvdyaesvkgrftisrdnktntlylemnnvrtedtgyyfcartgkyydfw
    wgyppgeeyfqdwgqgtlvivssdkthtastkgpsvfplapsskstsggtaa
    lgclvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgt
    qtyicnvnhkpsnkvdkkvepkscdkthtcppcpapellggpsvflfppk
    pkdtlmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeq
    ynstyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprep
    qvytlppcrdeltknqvslwclvkgfypsdiavewesngqpennykttppv
    ldsdgsfflyskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B aseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgi SEQ ID 
    pdrfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtdfv NO: 108
    ltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqliiylassrasg
    vpdrfsgsgsdkdftlkisrvetedvatyycmqgrespwtfgqtkvdikdkthtrt
    vaapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvte
    qdskdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 14 Nucleotide Sequences
    Heavy chain A aaagcccacctaatgcagtctagcaccgccataaaaaaaccagacgcctctatgcgg SEQ ID 
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggca NO: 109
    ggcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccg
    tgaacttcgacggaggcttccggaatagaatgaccctaacccaggacgtgtaccgcg
    agatcgcctacatggacatccggggcctgaagcccgatgacaccgccgtgtactactg
    cgccagagacagaagctacggcgacagcaactgggctctagatgcttggggccagg
    gcacaaccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggc
    ccctagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaagg
    actactttcccgagcccgtgaccgtgtcctggaattaggcgccctgaccagcggcgtg
    cacacctttccagagtgctgcagtccagcggcctgtacagcctgagcagcgtcgtga
    cagtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagc
    ccagcaacaccaaggtggacaagaaggtggaacccaagagagcgacaagaccca
    cacctgtcccccttgtcctgcccccgaactgctgggaggcccttccatgttcctgttccc
    cccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggt
    ggtggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtg
    gaagtgcacaacgccaagaccaagccaagagaggaacagtacaacagcacctacc
    gggtggtgtccgtgagaccgtgagcaccaggactggctgaacggcaaagagtaca
    agtgcaaggtgtccaacaaggccagcctgcccccatcgagaaaaccatcagcaagg
    ccaagggccagccccgcgaaccccaggtgtgcacactgcccccaaacagggacga
    gctgaccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgat
    atcgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccc
    cccctgtgctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaag
    tcccggtggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgcac
    aaccactacacccagaagtccctgagcctgagccccggcaag
    Light chain A tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacag SEQ ID 
    agtgaccatcaactgccagacctctcagggcgtgggcagcgacctgcactggt NO: 110
    atcagcacaagcctggcagagcccccaagctgctgatccaccacacaagcag
    cgtggaagatggcgtgcccagcagattttccggcagcggcttccacaccagct
    tcaacctgaccatcagcgatctgcaggccgacgacattgccacctactattgtc
    aggtgctgcagttcttcggcagaggcagcagactgcacatcaagcgtacggtg
    gccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccgg
    cacagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagt
    gcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcg
    tgaccgagcaggacagcaaggactccacctacagcctgagcagcaccctga
    cactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtga
    cccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtg
    t
    Heavy chain B caggtgcacctgacacagagcggacccgaagtgcggaagcctagcacctagtgaa SEQ ID 
    ggtgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcg NO: 111
    cagcgtgccaggacagggactgcagtggatgggctggatcagccacgagggcgac
    aagaaagtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacagaagc
    accaacaccgcctacctgcagctgagcggcctgacctctggcgataccgccgtgtact
    actgcgccaagggcagcaagcaccggctgagagactacaccctgtacgacgatgac
    ggcgccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggc
    cagggcacagccgtgaccgtgtcatctgacaaaacccataccgaggttagactggtg
    gagtcaggaggggggcagtgaagcccggtgggtctctccgcctgagctgttctgcct
    ccggctttgatttcgataacgcctggatgacctgggtcaggcagcctccaggtaaggg
    actggagtgggtgggaagaatcacaggtccaggcgagggaggtccgtggactacg
    cggaatctgttaaagggcggtttacaatctcaagggacaataccaagaataccttgtattt
    ggagatgaacaacgtgagaactgaagacaccggatattacttctgtgccagaacaggc
    aaatactacgacttctggtggggctatccccctggcgaggaatattttcaagactggggt
    cagggaacccttgttatcgtgtcctccgataagacccacaccgcttccaccaagggcc
    catcggtcttccccctggcaccctcctccaagagcacctctgggggcacagcggccct
    gggctgcctggtcaaggactacttccccgaaccggtgacggtgtcgtggaactcagg
    cgccctgaccagcggcgtgcacaccttcccggctgtcctacagtcctcaggactctact
    ccctcagcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctg
    caacgtgaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatc
    ttgtgacaaaactcacacatgcccaccgtgcccagcacctgaactcctggggggacc
    gtcagtcttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctg
    aggtcacatgcgtggtggtggacgtgagccacgaagaccctgaggtcaagttcaact
    ggtatgttgacggcgtggaggtgcataatgccaagacaaagccgcgggaggagcag
    tacaacagcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctga
    atggcaaggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgaga
    aaaccatctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgccc
    ccatgccgggatgagctgaccaagaatcaagtcagcctgtggtgcctggtaaaaggct
    tctatcccagcgacatcgccgtggagtgggagagcaatgggcagccggagaacaac
    tacaagaccacgcctcccatgaggactccgacggaccttcttcactactcaaaactc
    accgtagacaagagcaggtggcagcaggagaacgtatacatgctccgtgatacat
    gaggctctgcacaaccactacacgcagaagagcctctccctgtctccgggt
    Light chain B gcatccgaactgactcaggaccctgccgtctctgtggcactgaagcagactgt SEQ ID 
    gactattacttgccgaggcgactcactgcggagccactacgcttcctggtatca NO: 112
    gaagaaacccggccaggcacctgtgctgctgttctacggaaagaacaatagg
    ccatctggcatccccgaccgcttttctggcagtgcatcagggaaccgagccagt
    ctgaccattaccggcgcccaggctgaggacgaagccgattactattgcagctc
    ccgggataagagcggctccagactgagcgtgttcggaggaggaactaaactg
    accgtcctcgacaaaacccataccgacttcgtgctgacccagagccctcacag
    cctgagcgtgacacctggcgagagcgccagcatcagctgcaagagcagcca
    ctccctgatccacggcgaccggaacaactacctggcttggtacgtgcagaagc
    ccggcagatccccccagctgctgatctacctggccagcagcagagccagcgg
    cgtgcccgatagattttctggcagcggcagcgacaaggacttcaccctgaaga
    tcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagggcag
    agagagcccctsgacctttggccagggcaccaaggtggacatcaaggataag
    acccatacccgtacggtggccgctcccagcgtgttcatcttcccacctagcgac
    gagcagctgaagtccggcacagcctagtcgtgtgcctgctgaacaacttctac
    ccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcgg
    caacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacag
    cctgagcagcaccctgacactgagcaaggccgactacgagaagcacaaggt
    gtacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagc
    ttcaaccggggcgagtgt
    Binding Protein 15 Amino Acid Sequences
    Heavy chain A qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmgwishe SEQ ID 
    gdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydd NO: 113
    dgalnwavdvdylsnlefwgqgtavtvssastkgpsvfplapsskstsggtaalgcl
    vkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvn
    hkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdtlmisrtpevt
    cvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrvvsvltvlhqdwl
    ngkeykckvsnkalpapiektiskakgqprepqvctlppsrdeltknqvslscavkg
    fypsdiavewesngqpennykttppvldsdgsfflvskltvdksrwqqgnvfscsv
    mhealhnhytqkslslspg
    Light chain A dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID 
    asgvpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikrtva NO: 114
    apsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqds
    kdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgr SEQ ID 
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 115
    yydfwsgyppgeeyfqdwgqgtlvivssdkthtqmqlqesgpglvkpset
    lsltcsvsgasisdsywswirrspgkglewigyvhksgdtnyspslksrvnls
    ldtsknqvslslvaataadsgkyycartlhgrriygivafnewftyfymdvw
    gngtqvtvssdkthtastkgpsvfplapsskstsggtaalgclvkdyfpepvtv
    swnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntk
    vdkkvepkscdkthtcppcpapellggpsvfifppkpkdtlmisrtpevtcv
    vvdvshedpevkfnwyydgvevhnaktkpreeqynstyrvvsvltvlhqd
    wlngkeykckvsnkalpapiektiskakgqprepqvytlppcrdeltknqv
    slwclvkgfypsdiavewesngqpennykttppvldsdgsfflyskltvdks
    rwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B sdisvapgetariscgekslgsravqwyqhraaqapsliiynnqdrpsgiperfsgsp SEQ ID 
    dspfgttatltitsveagdeadyychiwdsrvptkwvfgggttltvldkthtaseltgdp NO: 116
    avsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgipdrfsgsas
    gnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtvaapsvfifp
    psdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysls
    stltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 15 Nucleotide Sequences
    Heavy chain A caggtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaa SEQ ID 
    ggtgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcg NO: 117
    cagcgtgccaggacagggactgcagtggatgggctggatcagccacgagggcgac
    aagaaagtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacagaagc
    accaacaccgcctacctgcagctgagcggcctgacctctggcgataccgccgtgtact
    actgcgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgac
    ggcgccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggcc
    agggcacagccgtgaccgtgtcatctgcttcgaccaagggccccagcgtgttccctct
    ggcccctagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtga
    aggactactttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcgg
    cgtacacacctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtc
    gtgacagtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccaca
    agcccagcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagac
    ccacacctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgtt
    ccccccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgt
    ggtggtggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggc
    gtggaagtgcacaacgccaagaccaagccaagagaggaacagtacaacagcaccta
    ccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagta
    caagtgcaaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaa
    ggccaagggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggac
    gagctgaccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccg
    atatcgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccacc
    ccccctgtgctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaa
    gtcccggtggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgca
    caaccactacacccagaagtccctgagcctgagccccggcaag
    Light chain A gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgcc SEQ ID 
    agcatcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctg NO: 118
    gcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagca
    gcagagccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttca
    ccctgaagatcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagg
    gcagagagagcccctggacctttggccagggcaccaaggtggacatcaagcgtacg
    gtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggca
    cagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtgg
    aaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcagg
    acagcaaggactccacctacagcctgagcagcaccctgacactgagcaaggccgact
    acgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccg
    tgaccaagagcttcaaccggggcgagtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccagtgggtctctccgc SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 119
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtggactacgcggaatctgaaaagggcggatacaatctcaagggacaatacca
    agaataccttgtatttggagatgaacaacgtgagaactgaagacaccggatattacact
    gtgccagaacaggcaaatactacgacactagtccggctatccccctggcgaggaatat
    tttcaagactagggtcaaggaacccttgttatcgtgtcctccaacaaaacccatacccag
    atgcagctgcaggagageggccaggactcgtaaaacccagcgagaccctgagcct
    gacatgcagcgtgagcggcgccagcatcagcgacagctactggagctggatcagga
    ggagccctggcaagggcctggagtggatcggctacgtgcacaagagcggcgacacc
    aactacagcccctccctgaagtccagggtgaacctgtccctggacaccagcaagaacc
    aggtgagcctgtccctggtggctgccacagctgctgacagcagcaagtactactgtgc
    caggaccctacacggcaggaggatctacggcatcgtaaccttcaacgagtaattcacc
    tacttctacatggacgtgtggggcaacggcacccaggtgaccgtgagctccgataaga
    cccacaccgcttccaccaagggcccatcggtcaccccctggcaccctcctccaagag
    cacctctgggggcacagcggccctgggctgcctggtcaaggactacttccccgaacc
    ggtgacggtgtcgtggaactcaagcgccctgaccagcggcatgcacaccttcccggc
    tgtcctacagtcctcaggactctactccctcagcagcgtggtgaccgtgccctccagca
    gcttgggcacccagacctacatctgcaacgtgaatcacaagcccagcaacaccaaggt
    ggacaagaaagttgagcccaaatcttgtgacaaaactcacacatgcccaccgtgccca
    gcacctgaactcctggggggaccgtcagtcttcctcttcccccccaaaaccaaggaca
    ccctcatgatctcccggacccctgaggtcacatgcgtggtggtggacgtgagccacga
    agaccctgaggtcaagttcaactggtatgttgacggcgtggaggtgcataatgccaaga
    caaagccacgggaggagcagtacaacagcacataccatgtagtcagcgtcctcacc
    gtcctgcaccaggactggctgaatagcaaggagtacaagtgcaagataccaacaaa
    gccctcccagcccccatcgagaaaaccatctccaaagccaaagggcagccccgaga
    accacaggtgtacaccctgcccccatgccgggatgagctgaccaagaatcaagtcag
    cctgtggtgcctggtaaaaggcttctatcccagcgacatcgccgtggagtgggagagc
    aatgggcagceggagaacaactacaagaccacgcctcccgtgctggactccgacgg
    ctccttcttcctctactcaaaactcaccgtagacaaaagcaggtggcagcaggagaac
    gtcttctcatgctccgtaatacatgaagctctacacaaccactacacgcagaagagcct
    ctccctgtctccaggt
    Light chain B tccgacatcagcgtggcccccggagagacagccaggatctcctgcggcgag SEQ ID 
    aagagcctgggaagcagggctgtgcagtggtaccaacacagggccggacag NO: 120
    gctcccagcctgatcatctacaacaaccaggacaggcccagcggcatccctga
    gaggttcagcggaagccccgacagccccttcggaaccacagccaccctgacc
    atcacaagcgtggaagccggcgacgaggccgactactactgccacatctggg
    acagcagggtgcccaccaagtgggtgtttggcggcggcaccaccctgaccgt
    gctggacaaaacccataccgcatccgaactgactcaggaccctgccgtctctgt
    ggcactgaagcagactgtgactattacttgccgaggcgactcactgcggagcc
    actacgcttcctggtatcagaagaaacccggccaggcacctgtgctgctgttcta
    cggaaagaacaataggccatctggcatccccgaccgcttactggcagtgcatc
    agggaaccgagccagtctgaccattaccggcgcccaggctgaggacgaagc
    cgattactattgcagctcccgggataagagcggctccagactgagcgtgttcgg
    aggaggaactaaactgaccgtcctcgataagacccatacccgtacggtggccg
    ctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggcaca
    gcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcag
    tggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgacc
    gagcaggacagcaaggactccacctacagcctgagcagcaccctgacactga
    gcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccacc
    agggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 16 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikpqy SEQ ID 
    gavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswalda NO: 121
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslsp
    g
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID 
    psrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikrtvaapsvfifppsde NO: 122
    qlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltls
    kadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgr SEQ ID 
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 123
    yydfwsgyppgeeyfqdwgqgtlvivssdkthtqmqlqesgpglvkpset
    lsltcsvsgasisdsywswirrspgkglewigyvhksgdtnyspslksrvnls
    ldtsknqvslslvaataadsgkyycartlhgrriygivafnewftyfymdvw
    gngtqvtvssdkthtastkgpsvfplapsskstsggtaalgclvkdyfpepvtv
    swnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntk
    vdkkvepkscdkthtcppcpapellggpsvfifppkpkdtlmisrtpevtcv
    vvdvshedpevkfnwyydgvevhnaktkpreeqynstyrvvsvltvlhqd
    wlngkeykckvsnkalpapiektiskakgqprepqvytlppcrdeltknqv
    slwclvkgfypsdiavewesngqpennykttppvldsdgsfflyskltvdks
    rwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B sdisvapgetariscgekslgsravqwyqhragqapsliiynnqdrpsgiperfsgsp SEQ ID 
    dspfgttatltitsveagdeadyychiwdsrvptkwvfgggttltvldkthtaseltqdp NO: 124
    avsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgipdrfsgsas
    gnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtvaapsvfifp
    psdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysls
    stltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 16 Nucleotide Sequences
    Heavy chain A agaacccacctggtacagtctggcaccgccatgaagaaaccaggcgcctctgtacgg SEQ ID 
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcag NO: 125
    gcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtg
    aacttcggcggaggcttccggaatagaatgaccctaacccgagacgtgtaccgcgag
    atcgcctacatggacatccggggcctgaagcccgatgacaccgccgtgtactactgcg
    ccagagacagaagctacggcgacagcagctgaactctagatacttgggaccagggc
    acaaccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggcccc
    tagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaaggacta
    ctttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgcac
    acctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtgacagt
    gcccagcagctctctgggcacccagacctacatagcaacgtgaaccacaagcccag
    caacaccaaggtggacaagaaggtggaacccaagagagcgacaagacccacacct
    gtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgaccccccaa
    agcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggtgg
    atgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtggaagt
    gcacaacaccaagaccaagccaagagaggaacagtacaacagcacctaccgggtg
    gtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtgc
    aaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggccaag
    ggccagccccgcgaaccccaggtgtgcacactacccccaagcagggacgagctga
    ccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatatcgcc
    gtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctgt
    gctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccggt
    ggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccact
    acacccagaagtccctgagcctgagccccgacaag
    Light chain A tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacag SEQ ID 
    agtgaccatcaactgccagacctacagggcgtgggcagcgacctgcactggt NO: 126
    atcagcacaagcctggcagagcccccaagctgctgatccaccacacaagcag
    cgtggaagatggcgtgcccagcagattttccggcagcggcttccacaccagct
    tcaacctgaccatcagcgatctgcaggccgacgacattgccacctactattgtca
    ggtgctgcagttcttcggcagaggcagcagactgcacatcaagcgtacggtgg
    ccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggc
    acagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtg
    cagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgt
    gaccgagcaggacagcaaggactccacctacagcctgagcagcaccctgac
    actgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacc
    caccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctaccgc SEQ ID 
    ctaagctgactgcctccggattgatttcaataacgcctgaataacctgaatcaggcag NO: 127
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtggactacgcggaatctgttaaagggcggtttacaatctcoogggacaatacca
    agaataccttgtataggagatgaacaacgtgagaactgaagacaccggatattacact
    gtgccagaacaggcaaatactacgacactggtccggctatccccctggcgaggaatat
    tttcaagactggggtcagggaacccttgttatcgtgtcctccgacaaaacccatacccag
    atgcagctgcaggagagcggccaggactcgtgaaacccagcgagaccctgagcct
    gacatgcagcgtgagcggcgccagcatcagcgacagctactggagctggatcagga
    ggagccctggcaagggcctggagtggatcggctacgtgcacaagagcggcgacacc
    aactacagcccctccctgaagtccagggtgaacctgtccaggacaccagcaagaacc
    aggtgagcctgtccctggtggctgccacagctgctgacagcggcaagtactactgtgc
    caggaccctacacggcaggaggatctacggcatcgtaaccttcaacgagtaattcacc
    tacttctacatgaacatgtggggcaacggcacccaggtgaccgtgagctccgataaga
    cccacaccgcttccaccaagggcccatcggtcttccccctggcaccctcctccaagag
    cacctctgggggcacagcggccctgggctgcctggtcaaggactacttccccgaacc
    ggtgacggtgtcgtggaactcaggcgccctgaccagcggcgtgcacaccttcccggc
    tgtcctacagtcctcaggactctactccctcagcagcgtggtgaccgtgccctccagca
    gcttgggcacccagacctacatctgcaacgtgaatcacaagcccagcaacaccaaggt
    ggacaagaaaattaagcccaaatcagtgacaaaactcacacatgcccaccgtaccca
    gcacctgaactcctggaaggaccatcagtcttcctcttccccccaaaacccaaggaca
    ccctcatgatctcccggacccctgaggtcacatgcgtggtggtggacgtgagccacga
    agaccctgaggtcaagttcaactggtatgttgacggcgtggaggtgcataatgccaaga
    caaagccgcgggaggagcagtacaacagcacgtaccgtgtggtcagcgtcctcacc
    gtcctgcaccaggactggctgaatggcaaggagtacaagtgcaaggtctccaacaaa
    gccctcccagcccccatcgagaaaaccatctccaaaaccaaagggcagccccgaga
    accacaggtatacaccctgcccccataccaggatgaactaaccaagaatcaaatcag
    cctgtggtgcctggtaaaaggcttctatcccagcgacatcgccgtggagtgggagagc
    aatgggcagccggagaacaactacaagaccacgcctcccgtgctggactccgacgg
    ctccttcttcctctactcaaaactcaccgtggacaagagcaggtggcagcaggggaac
    gtcttctcatgctccdgatgcatgaggctctgcacaaccactacacgcagaagagcct
    ctccctgtctccgggt
    Light chain B tccgacatcagcgtggcccccggagagacagccaggatctcctgcggcgag SEQ ID 
    aagagcctgggaagcagggctgtgcagtggtaccaacacagggccggacag NO: 128
    gctcccagcctgatcatctacaacaaccaggacaggcccagcggcatccctga
    gaggttcagcggaagccccgacagcccatcggaaccacagccaccctgacc
    atcacaagcgtggaagccggcgacgaggccgactactactgccacatctggg
    acagcagggtgcccaccaagtgggtgtttggcggcggcaccaccctgaccgt
    gctggacaaaacccataccgcatccgaactgactcaggaccctgccgtctctgt
    ggcactgaagcagactgtgactattacttgccgaggcgactcactgcggagcc
    actacgcttcctggtatcagaagaaacccggccaggcacctgtgctgctgttcta
    cggaaagaacaataggccatctggcatccccgaccgatttaggcagtgcatc
    agggaaccgagccagtctgaccattaccggcgcccaggctgaggacgaagc
    cgattactattgcagctcccgggataagagcggctccagactgagcgtgttcgg
    aggaggaactaaactgaccgtcctcgataagacccatacccgtacggtggccg
    ctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggcaca
    gcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcag
    tggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgacc
    gagcaggacagcaaggactccacctacagcctgagcagcaccctgacactga
    gcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccacc
    agggcctgtctagccccgtgacaagagcttcaaccggggcgagtgt
    Binding Protein 17 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikpqy SEQ ID 
    gavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswalda NO: 129
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslsp
    g
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID 
    psrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikrtvaapsvfifppsde NO: 130
    qlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltls
    kadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmg SEQ ID 
    wishegdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgsk NO: 131
    hrlrdyalydddgalnwavdvdylsnlefwgqgtavtvssdkthtqmqlqe
    sgpglvkpsetlsltcsvsgasisdsywswirrspgkglewigyvhksgdtn
    yspslksrvnlsldtsknqvslslvaataadsgkyycartlhgrriygivafne
    wftyfymdvwgngtqvtvssdkthtastkgpsvfplapsskstsggtaalgc
    lvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqty
    icnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkd
    tlmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynst
    yrvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytl
    ppcrdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsdg
    sfflyskltvdksrwgqgnvfscsvmhealhnhytqkslslspg
    Light chain B sdisvapgetariscgekslgsravqwyqhragapsliiynnqdrpsgiperfsgsp SEQ ID 
    dspfgttatltitsveagdeadyychiwdsrvptkwvfgggttltvldkthtdfvltqsp NO: 132
    hslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassrasgvpdrf
    sgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikdkthtrtvaaps
    vfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskd
    styslsstltskadyekhkvyacevthqglsspvtksfhrgec
    Binding Protein 17 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID 
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcag NO: 133
    gcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtg
    aacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgag
    atcgcctacatggacatccggggcagaagcccgatgacaccgccgtgtactactgcg
    ccagagacagaagaacggcgacagcagagagactagatgatgggaccagggc
    acaaccgtggtggtgtagccgcactacaaagggccccagcgtgttccctaggcccc
    tagcagcaagagcacataggcggaacagccgccagggagcacgtgaaggacta
    ctttcccgagcccgtgaccgtgtcaggaattaggcgccctgaccagcggcgtgcac
    accctttccagagtgagcagtccagcggcagtacagcagagcagcgtcgtgacagt
    gcccagcagactagggcacccagacctacatagcaacgtgaaccacaagcccag
    caacaccaaggtggacaagaaggtggaacccaagagagcgacaagacccacaca
    gtcccccttgtcagcccccgaactgagggaggcccttccgtgttcagttccccccaa
    agcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggtgg
    atgtgtcccacgaggaccagaagtgaagttcaattggtacgtggacggcgtggaagt
    gcacaacgccaagaccaagccaagagaggaacagtacaacagcacaaccgggtg
    gtatccgtgagaccgtgagcaccaggaaggagaacgacaaagagtacaagtgc
    aaggtgtccaacaaggccagcctacccccatcgagaaaaccatcagcaaggccaag
    ggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagaga
    ccaagaaccaggtgtccagagagtgccgtgaaaggatctacccctccgatatcgcc
    gtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctgt
    gctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccggt
    ggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccact
    acacccagaagtccctgagcctgagccccggcaag
    Light chain A tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacag SEQ ID 
    agtgaccatcaactgccagacctacagggcgtgggeagcgacctgcactggt NO: 134
    atcagcacaagcctggcagagcccccaagctgctgatccaccacacaagcag
    cgtggaagatggcgtgcccagcagattttccggcagcggcttccacaccagct
    tcaacctgaccatcagcgatctgcaggccgacgacattgccacctactattgtca
    ggtgctgcagttcttcggcagaggcagcagactgcacatcaagcgtacggtgg
    ccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggc
    acagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtg
    cagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgt
    gaccgagcaggacagcaaggactccacctacagcctgagcagcaccctgac
    actgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacc
    caccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B caggtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaa SEQ ID 
    ggtgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcg NO: 135
    cagcgtgccaggacagggactgcagtggatgggctggatcagccacgagggcgac
    aagaaagtgatcgtggaacggttcaaggccaaagtgaccatcgactgagacagaagc
    accaacaccgcctacctacagctaagcggcctgacctaggcgataccgccgtgtact
    actgcaccaaaagcagcaagcaccgactaagaaactacgccctgtacgacgatgac
    ggcgccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggcc
    agggcacagccgtgaccgtgtcatctgacaaaacccatacccagatgcagctgcagg
    agagcggccctggactcgtgaagcccagcgagaccctgagcctgacatgcagcgtg
    agcggcgccagcatcagcgacagetactggagctggatcaggaggagccctggcaa
    gggcctgaagtagatcggctacgtgcacaagagcaacgacaccaactacagcccct
    ccctgaagtccagggtgaacctgtccaggacaccagcaagaaccaggtgagcctgt
    ccctggtggctgccacagctgctgacagcggcaagtactactgtgccaggaccctgca
    cggcaggaggatctacggcatcgtggccttcaacgagtggttcacctacttctacatgg
    acgtgtggggcaacgcacccaggtgaccgtgagctccgataagacccacaccgctt
    ccaccaagggcccatcggtcttccccctggcaccctcctccaagagcacctggggg
    cacagcagccctaggctgcctgatcaagaactacttccccaaaccaatgacggtgtc
    gtggaactcaggcgccctgaccagcggcgtgcacaccttcccggctgtcctacagtcc
    tcagaactctactccctcagcagcatggtgaccgtgccaccagcagataggcaccc
    agacctacatagcaacgtgaatcacaagcccagcaacaccaaggtggacaagaaag
    ttgagcccaaatcttgtgacaaaactcacacatgcccaccgtgcccagcacctgaactc
    ctggggggaccgtcagtcttcctcttccccccaaaacccaaggacaccctcatgatctc
    ccggaacccctgaggtcacatgcgtggtggtggacgtgagccacgaagaccctgaggt
    caagttcaactagtatgttgacggcgtaaaggtgcataataccaaaacaaagccgcgg
    gaggagcagtacaacagcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccag
    gactggctgaatggcaaggagtacaagtgcaaggtctccaacaaagccctcccagcc
    cccatcgagaaaaccatctccaaagccaaagggcagccccgagaaccacaggtgta
    caccctgcccccatgccgggatgagctgaccaagaatcaagtcagcctgtggtgcctg
    gtaaaagacttctatcccaacgacatcaccatggagtaagagagcaatgggcagccg
    gagaacaactacaagaccacgcctcccatgaggactccaacggaccacttcctcta
    ctcaaaactcaccgtggacaagagcaggtggcagcaggggaacgtcttctcatgctcc
    gtgatgcatgaggactgcacaaccactacacgcagaagagcctctccctgtctccgg
    gt
    Light chain B tccgacatcagcgtggcccccggagagacagccaggatctcctgcggcgag SEQ ID 
    aagagcctgggaagcagggctgtgcagtggtaccaacacagggccggacag NO: 136
    gctcccagcctgatcatctacaacaaccaggacaggcccagcggcatccctga
    gaggttcagcggaagccccgacagcccatcggaaccacagccaccctgacc
    atcacaagcgtggaagccggcgacgaggccgactactactgccacatctggg
    acagcagggtgcccaccaagtgggtgtttggcggcggcaccaccctgaccgt
    gctggacaaaacccataccgacttcgtgctgacccagagccctcacagcctga
    gcgtgacacctggcgagagcgccagcatcagctgcaagagcagccactccct
    gatccacggcgaccggaacaactacctggcttggtacgtgcagaagcccggc
    agatccccccagctgagatctacctggccagcagcagagccagcggcgtgc
    ccgatagattttctggcagcggcagcgacaaggacttcaccctgaagatcagc
    cgggtggaaaccgaggacgtgggcacctactactgtatgcagggcagagag
    agcccctggacctttggccagggcaccaaggtggacatcaaggataagaccc
    atacccgtacggtggccgctcccagcgtgttcatatcccacctagcgacgagc
    agctgaagtccggcacagcctagtcgtgtgcctgctgaacaacttctaccccc
    gcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaac
    agccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctg
    agcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtac
    gcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaa
    ccggggcgagtgt
    Binding Protein 18 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikpqy SEQ ID 
    gavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswalda NO: 137
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslsp
    g
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID 
    psrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikrtvaapsvfifppsde NO: 138
    qlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B qmqlqesgpglvkpsetlsltcsvsgasisdsywswirrspgkglewigyvh SEQ ID 
    ksgdtnyspslksrvnlsldtsknqvslslvaataadsgkyycartlhgrriygi NO: 139
    vafnewftyfymdvwgngtqvtvssdkthtevrlvesggglvkpggslrls
    csasgfdfdnawmtwvrqppgkglewvgritgpgegwsvdyaesvkgrf
    tisrdntkntlylemnnyrtedtgyyfcartgkyydfwsgyppgeeyfqdw
    gqgtlvivssdkthtastkgpsvfplapsskstsggtaalgclvkdyfpepvtv
    swnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntk
    vdkkvepkscdkthtcppcpapellggpsvflfppkpkdtlmisrtpevtcv
    vvdvshedpevkfnwyvdgvevhnaktkpreegynstyrvvsvltvlhqd
    wlngkeykckvsnkalpapiektiskakgqprepqvytlppcrdeltknqv
    slwclvkgfypsdiavewesngqpennykttppvldsdgsfflyskltvdks
    rwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B aseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgip SEQ ID 
    drfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtsdis NO: 140
    vapgetariscgekslgsravqwyqhragqapsliiynnqdrpsgiperfsgspdsp
    fgttatltitsveagdeadyychiwdsrvptkwvfgggttltvldkthtrtvaapsvfif
    ppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstys
    lsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 18 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID 
    gtgtcctatcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcag NO: 141
    gcccaggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtg
    aacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgag
    atcgcctacatggacatccggggcctgaagcccgatgacaccgccgtgtactactgcg
    ccagagacagaagctacggcgacagcagctgggctctggatgcttggggccagggc
    acaaccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggcccc
    tagcagcaagagcacatctggcggaacagccaccctaggctgcctcgtgaaggacta
    ctttcccgagcccgtgaccgtgtcctagaattctgacgccctgaccagcggcgtgcac
    acctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtgacagt
    gcccagcagctctctgggcacccaaacctacatagcaacgtgaaccacaagcccag
    caacaccaaggtggacaagaaggtggaacccaagagagcgacaagacccacacct
    gtcccccttgtcctgcccccaaactactaagagacccttccgtgttcctattccccccaa
    agcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggtgg
    atgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtggaagt
    gcacaacgccaagaccaagccaagagaggaacagtacaacagcacctaccgggtg
    gtgtccgtgctgaccatgctgcaccaggactggctgaacggcaaagagtacaagtgc
    aaggtgtccaacaaggccctgcctacccccatcgagaaaaccatcagcaaggccaag
    ggccagccccgcgaaccccaagtgtgcacactgcccccaagcagggacaagctga
    ccaagaaccaggtatccctgaactatgccgtaaaaggcactacccctccgatatcgcc
    gtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctgt
    gctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccggt
    ggcagcagggcaacgtgacagctgctccgtgatgcacgaggccctgcacaaccact
    acacccagaagtccagagcctgagccccgacaag
    Light chain A tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacag SEQ ID 
    agtgaccatcaactgccagacctctcagggcgtgggcagcgacctgcactggt NO: 142
    atcagcacaagcctggcagagcccccaagctgctgatccaccacacaagcag
    cgtggaagatggcgtgcccagcagattttccggcagcggcttccacaccagct
    tcaacctgaccatcagcgatctgcaggccgacgacattgccacctactattgtca
    ggtgctgcagttcttcggcagaggcagcagactgcacatcaagcgtacggtgg
    ccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggc
    acagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtg
    cagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgt
    gaccgagcaggacagcaaggactccacctacagcctgagcagcaccctgac
    actgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacc
    caccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B cagatgcagctgcaggagagcgaccctggactcgtgaagcccagcgagaccctgag SEQ ID 
    cctgacatgcagcgtgagcagcgccagcatcagcgacagctactagagctggatcag NO: 143
    gaggagccctggcaagggcaggaatggatcggctacgtgcacaaaagcggcgac
    accaactacagcccctccctgaagtccaggatgaacctatccctggacaccagcaaga
    accaggtaagcctgtccctggtggctgccacagctgctgacagcgacaagtactactg
    tgccaggaccctgcacgacaggaggatctacggcatcgtggccttcaacgagtggttc
    acctacactacatggacgtgtgaggcaacggcacccaggtgaccgtgagctccgaca
    aaacccataccgaggttagactggtggagtcaggaggggggcttgtgaagcccggtg
    ggtctctccgcctgagctgttctgcctccggctttgatttcgataacgcctggatgacctg
    ggtcaggcagcctccaggtaagaaactggagtgaatggaaaaaatcacaagtccag
    gcgagggctggtccgtggactacgcggaatctgttaaagggcggtttacaatctcaag
    ggacaataccaagaataccttgtatttggagatgaacaacgtgagaactgaagacacc
    ggatattacttagtgccagaacaggcaaatactacgacttctggtccagctatccccct
    ggcgaggaatattttcaagactggggtcagagaacccttgttatcgtgtcctccaataag
    acccacaccgcttccaccaagggcccatcggtcttccccaggcaccctcctccaaga
    gcacctagggggcacageggccagggctgcaggtcaaggactacttccccgaac
    cggtgacggtgtcgtggaactcaggcgccctgaccagcggcgtgcacaccttcccgg
    ctgtcctacagtcctcaggactctactccctcagcagcgtggtgaccgtgccctccagc
    agcttgggcacccagacctacatctgcaacgtgaatcacaagcccagcaacaccaag
    gtggacaagaaagttgagcccaaatcttgtgacaaaactcacacatgcccaccgtgcc
    cagcacctgaactcctggaaggaccgtcagtatcctatccccccaaaacccaagga
    caccctcatgatctcccgaacccctgaggtcacatgcatggtggtgaacatgaaccac
    gaagaccctgaggtcaagttcaactggtatgttgacggcgtggaggtgcataatgccaa
    gacaaagccgcgggaggagcagtacaacagcacgtaccgtgtggtcagcgtcctca
    ccgtcctgcaccaggactggctgaatggcaaggagtacaagtgcaaggtctccaaca
    aagccctcccagcccccatcgagaaaaccatctccaaagccaaagggcagccccga
    gaaccacaggtgtacaccctgcccccatgccgggatgagctgaccaagaatcaagtc
    aacctgtagtgcctggtaaaaggatctatcccagcgacatcgccgtggagtgggaga
    acaataggcagccggagaacaactacaagaccacgcacccgtactagactccgac
    ggctcatatcactactcaaaactcaccgtgaacaagagcaggtggcagcagggga
    acgtatctcatgaccgtgatgcatgaggctctgcacaaccactacacgcagaagagc
    ctaccctgtctccgggt
    Light chain B gcatccgaactgactcaggaccctgccgtctctgtggcactgaagcagactgtg SEQ ID 
    actattacttgccgaggcgactcactgcggagccactacgcacctggtatcaga NO: 144
    agaaacccggccaggcacctgtgctgctgttaacggaaagaacaataggcca
    tctggcatccccgaccgcttttctggcagtgcatcagggaaccgagccagtctg
    accattaccggcgcccaggctgaggacgaagccgattactattgcagctcccg
    ggataagagcggctccagactgagcgtgttcggaggaggaactaaactgacc
    gtcctcgacaaaacccatacctccgacatcagcgtggcccccggagagacag
    ccaggatacctgcggcgagaagagcagggaagcagggctgtgcagtggta
    ccaacacagggccggacaggctcccagcctgatcatctacaacaaccaggac
    aggcccagcggcatccctgagaggttcagcggaagccccgacagccccttcg
    gaaccacagccaccctgaccatcacaagcgtggaagccggcgacgaggccg
    actactactgccacatctgggacagcagggtgcccaccaagtgggtgtttggc
    ggcggcaccaccctgaccgtgctggataagacccatacccgtacggtggccg
    ctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggcaca
    gcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcag
    tggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgacc
    gagcaggacagcaaggactccacctacagcctgagcagcaccctgacactga
    gcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccacc
    agggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 19 Amino Acid Sequences
    Heavy chain A evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgritgpg SEQ ID 
    egwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgkyydfwsgy NO: 145
    ppgeeyfqdwgqgtlvivssastkgpsvfplapsskstsggtaalgclvkdyfpepv
    tvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvd
    kkvepkscdkthtcppcpapellggpsvflfppkdtlmisrtpevtcvvvdvshe
    dpevkfnwyvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckv
    snkalpapiektiskakgqprepqvctlppsrdeltknqvslscavkgfypsdiave
    wesngqpennykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnh
    ytqkslslspg
    Light chain A aseltqdpavsvalkqtvtitcrgdslrshyaswygkkpgqapvllfygknnrpsgip SEQ ID 
    drfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvlsqpkaaps NO: 146
    vtlfppsseelqankatlvclisdfypgavtvawkadsspvkagvetttpskqsnnky
    aassylsltpeqwkshrsyscqvthegstvektvaptecs
    Heavy chain B qmqlqesgpglvkpsetlsltcsvsgasisdsywswirrspgkglewigyvh SEQ ID 
    ksgdtnyspslksrvnlsldtsknqvslslvaataadsgkyycartlhgrriygi NO: 147
    vafnewftyfymdvwgngtqvtvssdkthtQvhltqsgpevrkpgtsvkv
    sckapgntlktydlhwvrsvpgqglqwmgwishegdkkviverfkakvti
    dwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddgalnwavdv
    dylsnlefwgqgtavtvssdkthtastkgpsvfplapsskstsggtaalgclvk
    dyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicn
    vnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdtlm
    isrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrv
    vsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqytlpp
    crdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsf
    flyskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID 
    asgvpdrfsgsgsdkdftlkisrvetedvgtyycmggrespwtfgqgtkvdikdkth NO: 148
    tsdisvapgetariscgekslgsravqwyqhragqapsliiynnqdrpsgiperfsgs
    pdspfgttatltitsveagdeadyychiwdsrvptkwvfgggttltvldkthtrtvaaps
    vfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskd
    styslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 19 Nucleotide Sequences
    Heavy chain A gaggttagactggtggagtcaggaggggggcagtgaagcccggtgggtctctccgc SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 149
    cctccagataagggactagagtgggtgggaagaatcacagatccagacgagggctg
    gtccgtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaatacca
    agaataccttgtatttggagatgaacaacgtgagaactgaagacaccggatattacttct
    gtgccagaacaggcaaatactacgacttaggtccggctatccccaggcgaggaatat
    tttcaagactggggtcagggaacccttgttatcgtgtcctccgcgtcgaccaagggccc
    cagcgtgttccactggcccctagcagcaagageacataggcggaacagccgccct
    gggctgcctcgtgaaggactactttcccgagcccgtgaccgtgtcctagaattaggcg
    ccctgaccagcggcgtgcacacctttccagctgtgctgcagtccagcggcctgtacag
    cctgagcagcgtcgtgacagtgcccagcagctctctgggcacccagacctacatctgc
    aacgtgaaccacaageccageaacaccaaggtggacaagaaggtggaacccaaga
    gctgcgacaagacccacacctgtcccccttgtcctgcccccgaactgagggaggccc
    ttccgtgttcctgttccccccaaagcccaaggacaccctgatgatcaaccggaccccca
    aagtgacctgcgtggtggtagatgtgtcccacgaggaccctgaagtgaagttcaattgg
    tacgtggacggcgtggaagtgcacaacgccaagaccaagccaagagaggaacagta
    caacagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaac
    ggcaaagagtacaagtgcaaggtgtccaacaaggccctgcctgcccccatcgagaaa
    accatcagcaaggccaagggccagccccgcgaaccccaggtgtgcacactgccccc
    aagcagggacgagagaccaagaaccaggtgtccctgagagtgccgtgaaaggctt
    ctacccctccgatatcgccgtagaatgggagagcaacagccagcccgagaacaacta
    caagaccaccccccctatgaggacagcgacgactcattatcaggtatccaagaga
    cagtggacaagtcccggtggcagcagggcaacgtgttcagctgctccgtgatgcacg
    aggcccggcacaaccactacacccagaagtccctgagcctgagccccggcaag
    Light chain A gcatccgaactgactcaggaccctgccgtctctgtggcactgaagcagactgtg SEQ ID 
    actattacttgccgaggcgactcactgcggagccactacgcttcctggtatcaga NO: 150
    agaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggcca
    tctggcatccccgaccgcttttctggcagtgcatcagggaaccgagccagtctg
    accattaccggcgcccaggctgaggacgaagccgattactattgcagctcccg
    ggataagagcggctccagactgagcgtgttcggaggaggaactaaactgacc
    gtcctcagtcagcccaaggctgccccctcggtcactctgttcccgccctcgagt
    gaggagatcaagccaacaaggccacactggtgtgtctcataagtgacttctac
    ccgggagccgtgacagtggcaggaaggcagatagcagccccgtcaaggcg
    ggagtggagaccaccacaccctccaaacaaagcaacaacaagtacgcggcc
    agcagctacctgagcctgacgcctgagcagtggaagtcccacagaagctaca
    gctgccaggtcacgcatgaagggagcaccgtggagaagacagtggccccta
    cagaatgttca
    Heavy chain B cagatgcagctgcaggaganggccctggactcgtgaagcccagcgagaccctgag SEQ ID 
    cctgacatgcagcgtgagcggcgccagcatcagcgacagctactggagctggatcag NO: 151
    gaggagccctggcaagggcctggagtggatcggctacgtgcacaagagcggcgac
    accaactacagcccctccctgaagtccagggtgaacctgtccctggacaccagcaaga
    accaggtgagcctgtccctggtggctgccacagctgctgacagcggcaagtactactg
    tgccaggaccctgcacggcaggaggatctacggcatcgtggccttcaacgagtggttc
    acctacttctacatggacatgtagggcaacggcacccaggtaaccgtgagctccgaca
    aaacccatacccaaatgcacctaacacagaacggacccgaagtgcggaagcctggc
    acctagtgaaggigtcctgcaaggcccctggcaacaccctgaaaacctacgacctgc
    actgggtgcgcagcgtgccaggacagggactgcagtggatgggctggatcagccac
    gagggcgacaagaaagtgatcgtggaacggttcaaggccaaagtgaccatcgactgg
    gacagaagcaccaacaccgcctacctgcagctgagcggcctgacctctggcgatacc
    gccgtgtactactgcgccaagggcagcaagcaccggctgagagactacgccctgtac
    gacgatgacggcgccagaactgggccgtagatgtgaactacctgagcaacctggaa
    ttctgaggccaggacacaaccatgaccatgtcatctgataaaacccacaccgcttcca
    ccaagggcccatcggtcttccccctggcaccctcctccaagagcacctctgggggcac
    agcggccctgggctgcaggtcaaggactacttccccgaaccggtgacggtgtcgtgg
    aactcaggcgccctgaccagcggcgtgcacaccttcccggctgtcaacagtcctcag
    gactctactccctcagcgtggtgaccgtgccctccagcagcttgggcacccagac
    ctacatagcaacgtaaatcacaagcccagcaacaccaaagtgaacaagaaagttga
    gcccaaatatatgacaaaactcacacatgcccaccgtacccaacacctgaactcagg
    ggggaccgtcagtcttcctcttccccccaaaacccaaggacaccctcatgatctcccgg
    acccctgaggtcacatgcgtggtggtggacgtgagccacgaagaccctgaggtcaag
    ttcaactggtatgttgacggcgtggaggtgcataatgccaagacaaagccgcgggagg
    agcagtacaacagcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactg
    gctgaatggcaaggagtacaagtgcaaggtctccaacaaagccctcccagcccccat
    cgagaaaaccatctccaaagccaaagggcagccccgagaaccacaggtgtacaccc
    tgcccccatgccgggatgagctgaccaagaatcaagtcagcctgtggtgcctggtaaa
    aggcttctatcccagcgacatcgccgtggagtgggagagcaatgggcagccggaga
    acaactacaagaccacgcctcccgtgctggactccgacggctccttcttcctctactcaa
    aactcaccgtggacaagagcaggtggcagcaggggaacgtcttctcatgctccgtgat
    gcatgaggctctgcacaaccactacacgcagaagagcctaccctgtctccgggt
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgaga SEQ ID 
    gcgccagcatcagctgcaagagcagccactccctgatccacggcgaccggaa NO: 152
    caactacctggcttggtacgtgcagaagcccggcagatccccccagctgctga
    tctacctggccagcagcagagccagcggcgtgcccgatagattttctggcagc
    ggcagcgacaaggacttcaccctgaagatcagccgggtggaaaccgaggac
    gtgggcacctactactgtatgcagggcagagagagccectggacctttggcca
    gggcaccaaggtggacatcaaggacaaaacccatacctccgacatcagcgtg
    gcccccggagagacagccaggatctcctgcggcgagaagagcctgggaag
    cagggctgtgcagtggtaccaacacagggccggacaggctcccagcctgatc
    atctacaacaaccaggacaggcccagcggcatccagagaggttcagcggaa
    gccccgacagccccttcggaaccacagccaccctgaccatcacaagcgtgga
    agccggcgacgaggccgactactactgccacatctgggacagcagggtgcc
    caccaagtgggtgtttggcggcggcaccaccctgaccgtgctggataagaccc
    atacccgtacggtggccgctcccagcgtgttcatatcccacctagcgacgagc
    agctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctaccccc
    gcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaac
    agccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctg
    agcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtac
    gcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaa
    ccggggcgagtgt
    Binding Protein 20 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikpqy SEQ ID 
    gavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswalda NO: 153
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslsp
    g
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID 
    psrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikrtvaapsvfifppsde NO: 154
    qlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltls
    kadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B qmqlqesgpglvkpsetlsltcsvsgasisdsywswirrspgkglewigyvh SEQ ID 
    ksgdtnyspslksrvnlsldtsknqvslslvaataadsgkyycartlhgrriygi NO: 155
    vafnewftyfymdvwgngtqvtvssdkthtQvhltqsgpevrkpgtsvkv
    sckapgntlktydlhwvrsvpgqglqwmgwishegdkkviverfkakvti
    dwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddgalnwavdv
    dylsnlefwgqgtavtvssdkthtastkgpsvfplapsskstsggtaalgclvk
    dyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicn
    vnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdtlm
    isrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrv
    vsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytlpp
    crdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsf
    flyskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID 
    asgvpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikdkth NO: 156
    tsdisvapgetariscgekslgsravqwyqhragqapsliiynnqdrpsgiperfsgs
    pdspfgttatltitsveagdeadyychiwdsrvptkwvfgggttltvldkthtrtvaaps
    vfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskd
    styslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 20 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtaggcaccgccatgaagaaaccaggcgcctagtgcgg SEQ ID 
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatcctgactggttccggca NO: 157
    ggcccctggcagaggactggaatgagtgggatagatcaagccccagtatggcacca
    tgaacttcagcgaaggcaccaggatagagtgaccctgacccgggacgtgtaccacg
    agatcgcctacatggacatccggggectgaagcccgatgacaccgccgtatactacta
    cgccagagacagaagctacggcgacagcagctgggctctggatgcttggggccagg
    gcacaaccgtagtggtgtctgccgcctctacaaagggccccagcgtgttccactgac
    ccctagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaagg
    actactttcccgagcccgtgaccgtgtcctggaattctagcgccctgaccagcggcgtg
    cacacctttccagctgtgctgcagtccagcgacctgtacagcctgagcagcatcatga
    cagtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagcc
    cagcaacaccaaggtagacaagaaggtggaacccaagagctgcgacaagacccac
    acctgtcccccttgtcctgcccccgaactgagggaggcccaccgtattcctgttcccc
    ccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtg
    gtggatgtgtcccacgaagaccctgaagtgaagacaattggtacgtggacggcgtgg
    aagtgcacaacgccaagaccaagccaagagaggaacagtacaacaacacctaccgg
    gtgatgtccatgctgaccatgctgcaccaagactggctgaacggcaaagagtacaagt
    gcaaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggcca
    agggccagccccgcgaaccccaggtatgcacactgcccccaagcagggacgagct
    gaccaagaaccaggtgtccctgagctgtgccgtaaaaggcttctacccctccgatatcg
    ccgtggaatgggagagcaacggccaacccgagaacaactacaagaccaccccccct
    gtgctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccg
    gtggcagcagggcaacgtgacagctgctccgtgatgcacgaggccctgcacaacca
    ctacacccagaagtccctgagcctgagccccggcaag
    Light chain A tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacag SEQ ID 
    agtgaccatcaactgccagacctctcagggcgtgggcagcgacctgcactggt NO: 158
    atcagcacaagcctggcagagcccccaagctgctgatccaccacacaagcag
    cgtggaagatggcgtgcccagcagattttccggcagcggcttccacaccagct
    tcaacctgaccatcagcgatctgcaggccgacgacattgccacctactattgtca
    ggtgctgcagttcttcggcagaggcagcagactgcacatcaagcgtacggtgg
    ccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggc
    acagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtg
    cagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgt
    gaccgagcaggacagcaaggactccacctacagcctgagcagcaccctgac
    actgagcaaggccgactacgagaageacaaggtgtacgcctgcgaagtgacc
    caccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B cagatgcagctgcaggagagcggccctggactcgtgaagcccagcgagaccctgag SEQ ID 
    cctgacatgcagcgtgagcggcgccagcatcagcgacagctactggagctggatcag NO: 159
    gaggagccctggcaagggcctggagtggatcggctacgtgcacaagagcggcgac
    accaactacagcccctccctgaagtccagggtgaacctgtccctagacaccaacaaga
    accaagtgagcctatccctggtaactaccacagctgctgacaacggcaagtactactg
    tgccagaaccctgcacgacaaaaggatctacggcatcgtggccttcaacaagtagttc
    acctacttctacatggacgtgtggggcaacggcacccaggtgaccgtgagctccgaca
    aaacccatacccaggtgcacctgacacagagcggacccgaagtgcggaagcctggc
    acctctgtgaaggtgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgc
    actgggtgcgcagcgtgccagaacagggactgcagtggatgggctggatcagccac
    gagggcgacaagaaagtgatcgtggaacaattcaaggccaaagtgaccatcgactg
    ggacaaaaacaccaacaccgcctacctacaactaagcggcctgacctctggcgatac
    cgccgtatactactacgccaaggacaacaagcaccggctgagagactacaccctata
    cgacgatgacggcgccctgaactgggccgtggatgtggactacctgagcaacctgga
    attctggggccagggcacagccgtgaccgtgtcatctgataagacccacaccgcttcc
    accaagggcccatcggtcttccccctggcaccctcctccaagagcacctctgggggca
    cagcgaccctaggctgcctggtcaaggactacttccccgaaccgatgacggtgtcgtg
    gaactcaggcgccctgaccagcgacgtgcacaccttcccggctgtcctacagtcctca
    ggactctactccctcagcagcgtagtgaccgtgccctccaacaacttgggcacccaga
    cctacatctgcaacgtgaatcacaagcccagcaacaccaaggtggacaagaaagttga
    gcccaaatcttgtgacaaaactcacacatgcccaccgtgcccagcacctgaactcctgg
    ggggaccgtcagtcttcctcttccccccaaaacccaaggacaccacatgatctcccgg
    acccctgaggtcacatacgtggtgatggacgtgagccacgaagaccagagatcaag
    ttcaactggtatgttgacggcgtggaggtgcataatgccaagacaaagccgcgggag
    gagcagtacaacagcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggact
    ggctgaatggcaaggagtacaagtgcaaggtctccaacaaagccctcccagccccca
    tcgagaaaaccatctccaaagccaaagggcagccccgagaaccacaggtgtacacc
    ctgcccccataccgggatgaactaaccaagaatcaagtcagcagtggtgcctgataa
    aaggcttctatcccagcaacatcgccgtagagtgggagagcaatgggcaaccggag
    aacaactacaagaccacgcctcccatgaggactccaacggctccttcttcctctactca
    aaactcaccgtggacaagagcaggtggcagcaggggaacgtatctcatgctccgtg
    atgcatgaggctctgcacaaccactacacgcagaagagcctctccctgtctccgggt
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgaga SEQ ID 
    gcgccagcatcagctgcaagagcagccactccctgatccacggcgaccgga NO: 160
    acaactacctggcttggtacgtgcagaagcccggcagatccccccagctgctg
    atctacctggccagcagcagagccagcggcgtgcccgatagattttctggcag
    cggcagcgacaaggacttcaccctgaagatcagccgggtggaaaccgagga
    cgtgggcacctactactgtatgcagggcagagagagcccaggaccatggcc
    agggcaccaaggtggacatcaaggacaaaacccatacctccgacatcagcgt
    ggcccccggagagacagccaggatctcctgcggcgagaagagcctgggaa
    gcagggctgtgcagtggtaccaacacagggccggacaggctcccagcctgat
    catctacaacaaccaggacaggcccagcggcatccctgagaggttcagcgga
    agccccgacagccccttcggaaccacagccaccctgaccatcacaagcgtgg
    aagccggcgacgaggccgactactactgccacatagggacagcagggtgc
    ccaccaagtgggtgtttggcggcggcaccaccagaccgtgctggataagacc
    catacccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgag
    cagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctacccc
    cgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaa
    cagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcct
    gagcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgta
    cgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttca
    accggggcgagtgt
    Binding Protein 21 Amino Acid Sequences
    Heavy chain A qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmgwishe SEQ ID 
    gdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydd NO: 161
    dgalnwavdvdylsnlefwgqgtavtvssastkgpsvfplapsskstsggtaalgcl
    vkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvn
    hkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdtlmisrtpevt
    cvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrvvsvltvlhqdwl
    ngkeykckvsnkalpapiektiskakgqprepqvctlppsrdeltknqvslscavkg
    fypsdiavewesngqpennykttppvldsdgsfflvskltvdksrwqqgnvfscsv
    mhealhnhytqkslslspg
    Light chain A dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID 
    asgvpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikrtva NO: 162
    apsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqds
    kdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgr SEQ ID 
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 163
    yydfwsgyppgeeyfqdwgqgtlvivssdktht
    rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwik
    pqygavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygd
    sswaldawgqgttvvvsadkthtastkgpsvfplapsskstsggtaalgclvk
    dyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicn
    vnhkpsntkvdkkvepkscdkthtcppcpapellggpsvfifppkpkdtlm
    isrtpevtcvvvdvshedpevkfnwyydgvevhnaktkpreeqynstyrv
    vsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytlpp
    crdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsf
    flyskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID 
    psrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikdkthtaseltqdpavs NO: 164
    valkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgipdrfsgsasgnr
    asltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtvaapsvfifppsd
    eqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt
    lskadyekkhvyacevthqglsspvtksfnrgec
    Binding Protein 21 Nucleotide Sequences
    Heavy chain A caggtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaa SEQ ID 
    ggtgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcg NO: 165
    cagcgtgccaggacagggactgcagtggatgggctggatcagccacgagggcgac
    aagaaagtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacagaagc
    accaacaccgcctacctgcagctgagcggcctgacctctggcgataccgccgtgtact
    actgcgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgac
    ggcgccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggcc
    agggcacagccgtgaccgtgtcatctgcttcgaccaagggccccagcgtgttccctct
    ggcccctagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtga
    aggactactttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcgg
    cgtacacacctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtc
    gtgacagtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccaca
    agcccagcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagac
    ccacacctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgtt
    ccccccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgt
    ggtggtggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggc
    gtggaagtgcacaacgccaagaccaagccaagagaggaacagtacaacagcaccta
    ccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagta
    caagtgcaaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaa
    ggccaagggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggac
    gagctgaccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccg
    atatcgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccacc
    ccccctgtgctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaa
    gtcccggtggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgca
    caaccactacacccagaagtccctgagcctgagccccggcaag
    Light chain A gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgcc SEQ ID 
    agcatcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctg NO: 166
    gcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagca
    gcagagccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttca
    ccctgaagatcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagg
    gcagagagagcccctggacctttggccagggcaccaaggtggacatcaagcgtacg
    gtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggca
    cagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtgg
    aaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcagg
    acagcaaggactccacctacagcctgagcagcaccctgacactgagcaaggccgact
    acgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccg
    tgaccaagagcttcaaccggggcgagtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgc SEQ ID 
    ctgaactgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaagcag NO: 167
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaatacca
    agaataccttgtatttggagatgaacaacgtgagaactgaagacaccggatattacttct
    gtgccagaacaggcaaatactacgacttctggtccggctatccccctggcgaggaatat
    tttcaagactggggtcagggaacccttgttatcgtgtcctccgacaaaacccataccaga
    gcccacctggtacaatctggcaccgccatgaagaaaccaggcgcctctgtgcgggtg
    tcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcaggc
    ccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtgaa
    cttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgagat
    cgcctacatggacatccggggcctgaagcccgatgacaccgccgtgtactactgcgc
    cagagacagaagctacggcgacagcagctgggctctggatgcttggggccagggca
    caaccgtggtggtgtctgccgataagacccacaccgcttccaccaagggcccatcggt
    cttccccctggcaccctcctccaagagcacctctgggggcacagcggccctgggctg
    cctggtcaaggactacttccccgaaccggtgacggtgtcgtggaactcaggcgccctg
    accagcggcgtgcacaccttcccggctgtcctacagtcctcaggactctactccctcag
    cagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaacgtg
    aatcacaagcccagcaacaccaaggtggacaagaaagagagcccaaatcttgtgaca
    aaactcacacatgcccaccgtgcccagcacctgaactcctaaggggaccgtcagtat
    cctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaagtcacat
    gcgtggtggtagacgtgagccacgaagaccctgaggtcaagttcaactggtatattga
    cggcgtggaggtgcataatgccaagacaaagccgcgggaggagcagtacaacagc
    acgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctgaatggcaagg
    agtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaaccatctc
    caaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgccggg
    atgaactaaccaagaatcaagtcagcctgtgatgcctaataaaaggcttctatcccagc
    aacatcgccgtagagtgggagagcaatggacaaccagagaacaactacaagaccac
    gcctcccgtgctggactccgacggctccttcttcctctactcaaaactcaccgtggacaa
    gagcaggtggcagcaggggaacgtcttctcatgctccgtgatgcatgaggctctgcac
    aaccactacacgcagaagagcctctccctgtctccgggt
    Light chain B tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacagagtga SEQ ID 
    ccatcaactgccagacctctcagggcgtgggcagcgacctgcactggtatcagcacaa NO: 168
    gcctggcagagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgt
    gcccagcagattttccggcagcggcttccacaccagcttcaacctgaccatcagcgatc
    tgcaggccgacgacattaccacctactattgtcaaatgctgcagttcttcggcagaagc
    agcagactgcacatcaaggacaaaacccataccgcatccgaactgactcaggaccct
    gccgtctctgtggcactgaagcagactgtgactattacttgccgaggcgactcactgcg
    gagccactacgcttcctggtatcagaagaaacccggccaggcacctgtgctgctgttct
    acggaaagaacaataggccatctggcatccccgaccgcttttctggcagtgcatcagg
    gaaccgagccagtctgaccattaccggcgcccaggctgaggacgaagccgattacta
    ttgcagctcccgaaataagagcggctccagactgagcgtgttcggaagagaaactaa
    actgaccgtcctcgataagacccatacccgtacggtggccgctcccagcgtgttcatctt
    cccacctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaac
    aacttctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagc
    ggcaacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcct
    gagcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcct
    gcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggc
    gagtgt
    Binding Protein 22 Amino Acid Sequences
    Heavy chain A qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmgwishe SEQ ID 
    gdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydd NO: 169
    dgalnwavdvdylsnlefwgqgtavtvssastkgpsvfplapsskstsggtaalgcl
    vkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvn
    hkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdtlmisrtpevt
    cvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrvvsvltvlhqdwl
    ngkeykckvsnkalpapiektiskakgqprepqvctlppsrdeltknqvslscavkg
    fypsdiavewesngqpennykttppvldsdgsfflvskltvdksrwqqgnvfscsv
    mhealhnhytqkslslspg
    Light chain A dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID 
    asgvpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikrtva NO: 170
    apsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqds
    kdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwik SEQ ID 
    pqygavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygd NO: 171
    sswaldawgqgttvvvsadkthtevrlvesggglvkpggslrlscsasgfdfd
    nawmtwvrqppgkglewvgritgpgegwsvdyaesvkgrftisrdntknt
    lylemnnvrtedtgyyfcartgkyydfwsgyppgeeyfqdwgqgtlvivss
    dkthtastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgalts
    gvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepk
    scdkthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshed
    pevkfnwyvdgvevhnaktkpreeqynstytvvsvltvlhqdwlngkey
    kckvsnkalpapiektiskakgqprepqvytlppcrdeltknqvslwclvkg
    fypsdiavewesngqpennykttppvldsdgsf
    Light chain B aseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgip SEQ ID 
    drfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvl dktht NO: 172
    Yihvtqspsslsvsigdrvtincqtsqtsqgvsdhwyqhkpgrapkllihhtssvedg
    vpsrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrasrlhik
    dkthtrtvaapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgns
    qesvteqdskdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 22 Nucleotide Sequences
    Heavy chain A caggtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaa SEQ ID 
    ggtgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcg NO: 173
    cagcgtgccaggacagggactgcagtggatgggctggatcagccacgagggcgac
    aagaaagtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacagaagc
    accaacaccgcctacctgcagctgagcggcctgacctctggcgataccgccgtgtact
    actgcgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgac
    ggcgccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggcc
    agggcacagccgtgaccgtgtcatctgcttcgaccaagggccccagcgtgttccctct
    ggcccctagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtga
    aggactactttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcgg
    cgtacacacctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtc
    gtgacagtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccaca
    agcccagcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagac
    ccacacctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgtt
    ccccccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgt
    ggtggtggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggc
    gtggaagtgcacaacgccaagaccaagccaagagaggaacagtacaacagcaccta
    ccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagta
    caagtgcaaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaa
    ggccaagggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggac
    gagctgaccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccg
    atatcgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccacc
    ccccctgtgctggacagcgacggctcattcttcctggtgtccaagctgacagtggacaa
    gtcccggtggcagcagggcaacgtgttcagctgctccgtgatgcacgaggccctgca
    caaccactacacccagaagtccctgagcctgagccccggcaag
    Light chain A gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgcc SEQ ID 
    agcatcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctg NO: 174
    gcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagca
    gcagagccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttca
    ccctgaagatcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagg
    gcagagagagcccctggacctttggccagggcaccaaggtggacatcaagcgtacg
    gtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggca
    cagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtgg
    aaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcagg
    acagcaaggactccacctacagcctgagcagcaccctgacactgagcaaggccgact
    acgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccg
    tgaccaagagcttcaaccggggcgagtgt
    Heavy chain B agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID 
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcag NO: 175
    gcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtg
    aacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgag
    atcgcctacatagacatccagggcctaaaacccgatgacaccaccatgtactactgcg
    ccagagacagaagctacggcgacagcagctgaactctagatacttgggaccagggc
    acaaccgtgatggtgtctgccgacaaaacccataccgaggttagactggtggagtcag
    gaggggggcttgtgaagcccggtgggtactccgcctgagagactgcctccggcttt
    gatttcgataacgcctggatgacctgggtcaggcagcctccaggtaagggactggagt
    gggtgggaagaatcacaggtccaggcgagggctggtccgtggactacgcggaatct
    gttaaagggcggtttacaatctcaagggacaataccaagaataccttgtatttggagatg
    aacaacgtgagaactgaagacaccgaatattacttctgtgccagaacaggcaaatacta
    cgacttctggtccggctatccccctggcgaggaatattttcaagactggggtcagggaa
    cccttgttatcgtgtcctccgataagacccacaccgcttccaccaagggcccatcggtct
    tccccctggcaccctcctccaagagcacctctgggggcacagcggccctgggctgcc
    tggtcaaggactacttccccgaaccagtgacggtgtcgtggaactcaggcgccctgac
    cagcggcgtgcacaccttcccggctgtcctacagtcctcaggactctactccctcagca
    gcgtggtaaccgtaccctccagcagcttgggcacccagacctacatctgcaacgtgaa
    tcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgtgacaaa
    actcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtcagtcttcct
    cttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggtcacatgc
    gtggtggtggacgtgagccacgaagaccctgaggtcaagttcaactggtatgttgacg
    gcgtggaggtgcataatgccaagacaaagccgcgggaggaacagtacaacagcac
    gtaccgtatggtcagcgtcctcaccgtcctgcaccaggactggctgaatgacaaggag
    tacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaaccatctcca
    aagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgccgggat
    gagctgaccaagaatcaagtcagcctgtggtgcctggtaaaaggcttctatcccagcga
    catcgccgtggagtgggagagcaatgggcagccggagaacaactacaagaccacgc
    ctcccgtgctggactccgacggctccttcttcctctactcaaaactcaccgtggacaaga
    gcaggtggcagcaggggaacgtcttctcatgctccgtgatgcatgaggctctgcacaa
    ccactacacgcagaagagcctctccctgtctccgggt
    Light chain B gcatccgaactgactcaggaccctgccgtctctgtggcactgaagcagactgtg SEQ ID 
    actattacttgccgaggcgactcactgcggagccactacgcttatggtatcaga NO: 176
    agaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggcca
    tctggcatccccggccgctttctggcagtgcatcagggaaccgagccagtctg
    accattaccggcgcccaggctgaggacgaagccgattactattgcagctcccg
    ggataagagcggctccagactgagcgtgttcggaggaggaactaaactgacc
    gtcctcgacaaaacccatacctacatccacgtgacccagagccccagcagcct
    gtccgtgtccatcggcgacagagtgaccatcaactgccagacctctcagggcg
    tgggcagcgacctgcactggtatcagcacaagcctggcagagcccccaagct
    gctgatccaccacacaagcagcgtggaagatggcgtgcccagcagattttccg
    gcagcggcttccacaccagcttcaacctgaccatcagcgatctgcaggccgac
    gacattgccacctactattgtcaggtgctgcagttcttcggcagaggcagaga
    ctgcacatcaaggataagacccatacccgtacggtggccgctcccagcgtgtt
    catcttcccacctagcgacgagcagctgaagtccggcacagcctagtcgtgtg
    cctgctgaacaacttctacccccgcgaggccaaagtgcagtggaaggtggac
    aacgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacag
    caaggactccacctacagcctgagcagcaccctgacactgagcaaggccgac
    tacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgtcta
    gccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 23 Amino Acid Sequences
    Heavy chain A evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgritgpg SEQ ID 
    egwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgkyydfwsgy NO: 177
    ppgeeyfqdwgqgtlvivssastkgpsvfplapsskstsggtaalgclvkdyfpepv
    tvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsnkvd
    kkvepkscdkthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshe
    dpevkfnwyvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckv
    snkalpapiektiskakgqprepqvctlppsrdeltknqvslscavkgfypsdiave
    wesngqpennykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnh
    ytqkslslspg
    Light chain A Aseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgi SEQ ID 
    pdrfsgsasgnrasltitaaqaedeadyycssrdksgsrlsvfgggtkltvlsqpkaap NO: 178
    svtlfppsseelqankatlvclisdfypgavtvawkadsspvkagvetttpskgsnnk
    yaassylsltpeqwkshrsyscqvthegstvektvaptecs
    Heavy chain B rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwik SEQ ID 
    pqygavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygd NO: 179
    sswaldawgqgttvvvsadkthtQvhltqsgpevrkpgtsvkvsckapgnt
    lktydlhwvrsvpgqglqwmgwishegdkkviverfkakvtidwdrstnt
    aylqlsgltsgdtavyycakgskhrlrdyalydddgalnwavdvdylsnlef
    wgqgtavtvssdkthtastkgpsvfplapsskstsggtaalgclvkdyfpepv
    tvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsn
    tkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdtlmisrtpevt
    cvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrvvsvltvlh
    qdwlngkeykckvsnkalpapiektiskakgqprepqvytlppcrdeltkn
    qvslwclvkgfypsdiavewesngqpennykttppvldsdgsfflyskltvd
    ksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID 
    asgvpdrfsgsgsdkdflkisrvetedvgtyycmqgrespwtfgqgtkvdikdkth NO: 180
    t
    yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv
    psrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikdkthtrtvaapsvfifp
    psdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysls
    stltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 23 Nucleotide Sequences
    Heavy chain A gaggttagactggtggagtcaggaggggggcagtgaagcccggtgggtctctccgc SEQ ID 
    ctgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 181
    cctccagataagggactagagtgggtgggaagaatcacagatccagacgagggctg
    gtccgtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaatacca
    agaataccttgtatttggagatgaacaacgtgagaactgaagacaccggatattacttct
    gtgccagaacaggcaaatactacgacttaggtccggctatccccaggcgaggaatat
    tttcaagactggggtcagggaacccttgttatcgtgtcctccgcgtcgaccaagggccc
    cagcgtgttccactggcccctagcagcaagageacataggcggaacagccgccct
    gggctgcctcgtgaaggactactttcccgagcccgtgaccgtgtcctagaattaggcg
    ccctgaccagcggcgtgcacacctttccagctgtgctgcagtccagcggcctgtacag
    cctgagcagcgtcgtgacagtgcccagcagctctctgggcacccagacctacatctgc
    aacgtgaaccacaageccageaacaccaaggtggacaagaaggtggaacccaaga
    gctgcgacaagacccacacctgtcccccttgtcctgcccccgaactgagggaggccc
    ttccgtgttcctgttccccccaaagcccaaggacaccctgatgatcaaccggaccccca
    aagtgacctgcgtggtggtagatgtgtcccacgaggaccctgaagtgaagttcaattgg
    tacgtggacggcgtggaagtgcacaacgccaagaccaagccaagagaggaacagta
    caacagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaac
    ggcaaagagtacaagtgcaaggtgtccaacaaggccctgcctgcccccatcgagaaa
    accatcagcaaggccaagggccagccccgcgaaccccaggtgtgcacactgccccc
    aagcagggacgagagaccaagaaccaggtgtccctgagagtgccgtgaaaggctt
    ctacccctccgatatcgccgtagaatgggagagcaacagccagcccgagaacaacta
    caagaccaccccccctatgaggacagcgacgactcattatcaggtatccaagaga
    cagtggacaagtcccggtggcagcagggcaacgtgttcagctgctccgtgatgcacg
    aggcccggcacaaccactacacccagaagtccctgagcctgagccccggcaag
    Light chain A gcatccgaactgactcaggaccctgccgtetctgtggcactgaagcagactgtg SEQ ID 
    actattacttgccgaggcgactcactgcggagccactacgcttcctggtatcaga NO: 182
    agaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggcca
    tctggcatccccgaccgcttttctggcagtgcatcagggaaccgagccagtctg
    accattaccggcgcccaggctgaggacgaagccgattactattgcagctcccg
    ggataagagcggctccagactgagcgtgttcggaggaggaactaaactgacc
    gtcctcagtcagcccaaggctgccccctcggtcactctgttcccgccctcgagt
    gaggagatcaagccaacaaggccacactggtgtgtctcataagtgacttctac
    ccgggagccgtgacagtggcaggaaggcagatagcagccccgtcaaggcg
    ggagtggagaccaccacaccctccaaacaaagcaacaacaagtacgcggcc
    agcagctacctgagcctgacgcctgagcagtggaagtcccacagaagctaca
    gctgccaggtcacgcatgaagggagcaccgtggagaagacagtggccccta
    cagaatgttca
    Heavy chain B agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID 
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcag NO: 183
    gcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtg
    aacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgag
    atcgcctacatagacatccggggcctgaagcccgatgacaccgccgtgtactactgcg
    ccagagacagaagctacggcgacagcagctgggctctggatacttggggccagggc
    acaaccgtggtggtgtctgccgacaaaacccatacccaggtgcacctgacacagagc
    ggacccgaagtgcggaagcctggcacctctgtgaaggtgtcctgcaaggcccctggc
    aacaccctgaaaacctacgacctgcactgggtgcgcagcgtgccaggacagggactg
    cagtggatgggctggatcagccacgagggcgacaagaaagtgatcgtggaacggttc
    aaggccaaagtgaccatcgactgggacagaagcaccaacaccgcctacctgcagctg
    agcggcctgacctctggcgataccgccgtgtactactgcgccaagggcagcaagcac
    cggctgagagaetacgccctgtacgacgatgacggcgccctgaactgggccgtggat
    gtggactacctgagcaacctggaattctggggccagggcacagccgtgaccgtgtcat
    ctgataagacccacaccgcttccaccaagggcccatcggtcttccccctggcaccctcc
    tccaagagcacctctgggggcacagcggccctgggctgcctggtcaaggactacttcc
    ccgaaccggtgacggtgtcgtggaactcaggcgccctgaccagcggcgtgcacacct
    tcccggctgtcctacagtcctcaggactctactccctcagcagcgtggtgaccgtgccct
    ccagcagcttgggcacccagacctacatctgcaacgtgaatcacaagcccagcaaca
    ccaaggtggacaagaaagttgagcccaaatcttgtgacaaaactcacacatgcccacc
    gtgcccagcacctgaactcctggggggaccgtcagtcttcctcttccccccaaaaccca
    aggacaccctcatgatctcccggacccctgaggtcacatgcgtggtggtggacgtgag
    ccacgaagaccctgaggtcaagttcaactggtatgttgacggcgtggaggtgcataatg
    ccaagacaaagccgcgggaggagcagtacaacagcacgtaccgtgtggtcagcgtc
    ctcaccgtcctgcaccaggactggctgaatggcaaggagtacaagtgcaaggtctcca
    acaaagccctcccagcccccatcgagaaaaccatctccaaagccaaagggcagccc
    cgagaaccacaggtgtacaccctgcccccatgccgggatgagctgaccaagaatcaa
    gtcagcctgtggtgcctggtaaaaggcttctatcccagcgacatcgccgtggagtggg
    agagcaatgggcagccggagaacaactacaagaccacgcctcccgtgctggactcc
    gacggctccttcttcctctactcaaaactcaccgtggacaagagcaggtggcagcagg
    ggaacgtcttctcatgctccgtgatgcatgaggctctgcacaaccactacacgcagaag
    agcctctccctgtctccgggt
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgaga SEQ ID 
    gcgccagcatcagctgcaagagcagccactccctgatccacggcgaccggaa NO: 184
    caactacctggcttggtacgtgcagaagcccggcagatccccccagctgctga
    tctacctggccagcagcagagccagcggcgtgcccgatagattttctggcagc
    ggcagcgacaaggacttcaccctgaagatcagccgggtggaaaccgaggac
    gtgggcacctactactgtatgcagggcagagagagcccctggacctttggcca
    gggcaccaaggtggacatcaaggacaaaacccatacctacatccacgtgacc
    cagagccccagcagcctgtccgtgtccatcggcgacagagtgaccatcaactg
    ccagacctctcagggcgtgggcagcgacctgcactggtatcagcacaagcct
    ggcagagcccccaagctgctgatccaccacacaagcagcgtggaagatggc
    gtgcccagcagattaccggcagcggcttccacaccagcttcaacctgaccatc
    agcgatctgcaggccgacgacattgccacctactattgtcaggtgctgcagttct
    tcggcagaggcagcagactgcacatcaaggataagacccatacccgtacggt
    ggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccg
    gcacagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaa
    gtgcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaag
    cgtgaccgagcaggacagcaaggactccacctacagcctgagcagcaccctg
    acactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtga
    cccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtg
    t
    Binding Protein 24 Amino Acid Sequences
    Heavy chain A evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgritgpge SEQ ID 
    gwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgkyydfwsgypp NO: 185
    geeyfqdwgqgtlvivssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvs
    wnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkve
    pkscdkthtcppcpapellggpsvflfppkdtlmisrtpevtcvvvdvshedpev
    kfnwyvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkal
    papiektiskakgqprepqvctlppsrdeltknqvslscavkgfypsdiavewesngq
    pennykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslsls
    pg
    Light chain A aseltqdpavsvalkqtvtitcrgdslrshyaswygkkpgqapvllfygknnrpsgip SEQ ID 
    drfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvlsqpkaapsv NO: 186
    tlfppsseelqankatlvclisdfypgavtvawkadsspvkagvetttpskqsnnkya
    assylsltpeqwkshrsyscqvthegstvektvaptecs
    Heavy chain B Qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmg SEQ ID
    wishegdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgskh NO: 187
    rlrdyalydddgalnwavdvdylsnlefwgqgtavtvss
    dkthtrahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewv
    gwikpqygavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrs
    ygdsswaldawgqgttvvvsadkthlastkgpsvfplapsskstsggtaalgc
    lvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyi
    cnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdtl
    misrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyr
    vvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytlpp
    crdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsffl
    yskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain B yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID
    psrfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikdkthtdfvltqsphsls NO: 188
    vtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassrasgvpdrfsgsg
    sdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikdkthtrtvaapsvfifpp
    sdeqlksgasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsst
    ltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 24 Nucleotide Sequences
    Heavy chain A gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgcc SEQ ID
    tgagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcagcc NO: 189
    tccagataagggactggaatgggtgggaagaatcacagatccaagcgagggctggtc
    cgtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaataccaaga
    ataccttgtatttggagatgaacaacgtgagaactgaagacaccggatattacttctgtgc
    cagaacaggcaaatactacgacactggtccggctatccccctggcgaggaatattttca
    agactggggtcagggaacccttgttatcgtgtcctccgcgtcgaccaagggccccagcg
    tgttccctctggcccctagcagcaagagcacataggcggaacagccgccctgggctg
    cctcgtgaaggactactttcccgagcccgtgaccgtgtcaggaattaggcgccagac
    cagcggcgtgcacacctttccagagtactacaatccagcggcctatacaacctgagca
    gcgtcgtgacagtgcccagcagctactgggcacccagacctacatagcaacgtgaac
    cacaagcccagcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaa
    gacccacacctgtcccccagtcctgcccccgaactgctgggaggcccttccgtgacct
    gttccccccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgc
    gtggtggtggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacgg
    cgtggaagtgcacaacgccaagaccaagccaagagaggaacagtacaacagcaccta
    ccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtac
    aagtgcaaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaagg
    ccaagggccagecccgcgaaccccaggtgtgcacactgcccccaagcagggacgag
    ctgaccaagaaccaggtgtccctgagagtgccgtgaaaggatctacccaccgatatc
    gccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccc
    tgtgctggacagcgacggctcattcttcctgatgtccaagctgacagtagacaaatccca
    gtggcagcagggcaacgtgttcagctgaccgtgatgcacgaggccctgcacaaccac
    tacacccagaagtccctgagcctgagccccggcaag
    Light chain A gcatccgaactgactcaggaccctgccgtctctgtggcactgaagcagactgtg SEQ ID
    actattacttgccgaggcgactcactgcggagccactacgcttcctggtatcaga NO: 190
    agaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggccat
    ctggcatccccgaccgcattctggcagtgcatcagggaaccgagccagtctga
    ccattaccggcgcccaggctgaggacgaagccgattactattgcagctcccgg
    gataagagcggctccagactgagcgtgttcggaggaggaactaaactgaccgt
    cctcagtcagcccaaggctgccccctcggtcactagttcccgccctcgagtgag
    gagcttcaagccaacaaggccacactggtgtgtctcataagtgacttctacccgg
    gagccgtgacagtggcctggaaggcagatagcagccccgtcaaggcgggagt
    ggagaccaccacaccctccaaacaaagcaacaacaagtacgcggccagcagc
    tacctgagcctgacgcctgagcagtggaagtcccacagaagctacagctgcca
    ggtcacgcatgaagggagcaccgtggagaagacagtggcccctacagaatgtt
    ca
    Heavy chain B tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacagagtga SEQ ID
    ccatcaactgccagacctacagggcgtgggcagcgacctgcactggtatcagcacaa NO: 191
    gcctggcagagcccccaagagagatccaccacacaagcagcgtggaagatggcgt
    gcccagcagattaccggcagcagatccacaccagatcaacctgaccatcagcgatct
    gcaggccgacgacattaccacctactattgtcaggtgctgcagttctteggcagaggca
    gcagactgcacatcaaggacaaaacccataccgacttcgtgctgacccagagccctca
    cagcctgagcgtgacacctggcgagagcgccagcatcagagcaagagcagccactc
    cctgatccacggcgaccggaacaactacctggcttggtacgtgcagaagcccggcaga
    tccccccagctgctgatctacctggccagcagcagagccagcggcgtgcccgatagatt
    ttctggcagcagcagcgacaaggacttcaccctgaagatcagccgggtggaaaccga
    ggacgtgggcacctactactgtatgcagggcagagagagcccaggacctaggccag
    ggcaccaaggtggacatcaaggataagacccatacccgtacggtggccgctcccagc
    gtgttcatcttcccacctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgc
    ctgctgaacaacttctacccccgcgaggccaaagtgcagtggaaggtggacaacgccc
    tgcagagcggcaacagccaggaaagcgtgaccgagcaggacagcaaggactccacc
    tacagcctgagcagcaccagacactgagcaaggccgactacgagaagcacaaggtg
    tacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagatcaacc
    ggggcgagtgt
    Light chain B tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacag SEQ ID
    agtgaccatcaactgccagacctctcagggcgtgggcagcgacctgcactggt NO: 192
    atcagcacaagcctggcagagcccccaagctgagatccaccacacaagcagc
    gtggaagatggcgtgcccagcagattttccggcagcggcttccacaccagcttc
    aacctgaccatcagcgatctgcaggccgacgacattgccacctactattgtcagg
    tgctgcagttcttcggcagaggcagcagactgcacatcaaggacaaaacccata
    ccgacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgag
    agcgccagcatcagctgcaagagcagccactccctgatccacggcgaccgga
    acaactacctggcttggtacgtgcagaagcccggcagatccccccagctgctga
    tctacctggccagcagcagagccagcggcgtgcccgatagattttctggcagcg
    gcagcgacaaggacttcaccctgaagatcagccgggtggaaaccgaggacgt
    gggcacctactactgtatgcagggcagagagagcccctggacctttggccagg
    gcaccaaggtggacatcaaggataagacccatacccgtacggtggccgctccc
    agcgtgttcatcttccacctagcgacgagcagctgaagtccggcacagcact
    gtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtggaag
    gtggacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcag
    gacagcaaggactccacctacagcctgagcagcaccctgacactgagcaagg
    ccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcct
    gtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 25 Amino Acid Sequences
    Heavy chain A qvqlvqsggqmkkpgesmriscrasgyefi
    Figure US20190054182A1-20190221-P00021
    wirlapgkrpewmg
    Figure US20190054182A1-20190221-P00022
    SEQ ID
    Figure US20190054182A1-20190221-P00023
    rvtmtrdvysdtaflelrsltvddtavyfctr
    Figure US20190054182A1-20190221-P00024
    wgr
    NO: 193
    gtpvivssastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgvh
    tfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkthtcp
    pcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyvdgve
    vhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiektiskak
    gqprepqvctlppsrdeltknqvslscavkgfypsdiavewesgqpennykttppv
    ldsdgsfflvskltvdksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain A eivltqspgtlslspgetaiisc
    Figure US20190054182A1-20190221-P00025
    awyqqrpgqaprlviy
    Figure US20190054182A1-20190221-P00026
    gipdrfs
    SEQ ID
    gsrwvgpdynltisnlesgdfgvyy
    Figure US20190054182A1-20190221-P00027
    fgqgtkvqvdikrtvaapsvfifppsde
    NO: 194
    qlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltls
    kadyekhkvyacevthqglsspvcksfnrgec
    Heavy chain B evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgrit SEQ ID
    gpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgkyy NO: 195
    dfwsgyppgeeyfqdwgqgtlvivssdkthtqvqlvesgggvvqpgtslrls
    caasqfrfdgygmhwvrqapgkglewvasishdgikkyhaekvwgrftisr
    dnskntlylqmnslrpedtalyycakdlredeceewwsdyydfgkqlpcaks
    rgglvgiadnwgqgtmvtvssdkthtastkgpsvfplapsskstsggtaalgcl
    vkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyic
    nvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvtlfppkpkdtl
    misrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyr
    vvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytlpp
    crdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsffl
    yskltvdksrwqqgnvfscsvlhealhshylqkslslspg
    Light chain B qsvltqppsvsaapgqkvtiscsgntsnignnfvswyqqrpgrapqlliyetdkrpsgi SEQ ID
    pdrfsasksgtsgtlaitgtqtgdeadyycatwaaslssarvfgtgtkvivldkthtaselt NO: 196
    gdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgipdrfsg
    sasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtvaapsvfif
    ppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysl
    sstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein
     25 Nucleotide Sequences
    Heavy chain A cagatgcagctggtgcagtctggcggccagataaaaaaacccagcgagaacatgcgg SEQ ID
    atcagctgcagagccagcggctacgagttcatcgactgcaccctgaactggatcagact NO: 197
    ggcccctggcaagcggcctgagtggatgggatggctgaagcctagaggcggagccgt
    gaactacgccagacctctgcagggcagagtgaccatgacccgggacgtgtacagcgat
    accgccttcctggaactgcggagcctgaccgtggatgataccgccgtgtacttctgcacc
    cggggcaagaactgcgactacaactgggacttcgagcactggggcagaggcacccct
    gtgatcgtatcaagcgcgtcgaccaagggccccagcgtgttccactaacccctagcaa
    caagagcacataggcagaacaaccaccctaggctgcctcgtgaaggactactttcccg
    agcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgcacaccatcca
    gctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtgacagtgcccagca
    gctactaggcacccagacctacatagcaacgtgaaccacaagcccagcaacaccaa
    ggtggacaagaaggtggaacccaagagagcgacaagacccacacagtcccccttgt
    cctgcccccgaactgagggaggcccttccgtgacctgttccccccaaagcccaagga
    caccctgatgatcagccggacccccgaagtgacctgcgtggtggtggatgtgtcccacg
    aggaccctgaagtgaagttcaattggtacgtggacggcgtggaagtgcacaacgccaa
    gaccaagccaagagaggaacagtacaacagcacctaccgggtggtgtccgtgctgac
    cgtgctgcaccaggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaag
    gccctgcctgcccccatcgagaaaaccatcagcaaggccaagggccagccccgcgaa
    ccccaggtgtacacactgcccccaaacagggacgaactaaccaagaaccaaatgtcc
    ctgagctgtgccgtgaaaggcttctacccctccgatatcgccgtggaatgggagagcaa
    cggccagcccgagaacaactacaagaccaccccccctgtgctggacagcgacggctc
    attcttcctggtgtccaagctgacagtggacaagtcccggtggcagcagggcaacgtgtt
    cagctgctccgtgctgcatgaggctctgcacagccactacacgcagaagagcctctccc
    tgtctccgggt
    Light chain A Gagatcgtgctgacacagagccaggcaccctgagcctgtctccaggegagacagcc SEQ ID
    atcatcagctgccggacaagccagtacggcagcctggcctggtatcagcagaggcctg NO: 198
    gacaggcccccagactcgtgatctacagcggcagcacaagagccgccggaatccccg
    atagattcagcggctccagatggaaccctaactacaacctgaccatcagcaacctgaaa
    agcggcgacttcggcgtgtactactgccagcagtacgagttcttcggccagggcaccaa
    ggtgcaggtggacatcaagcgtacggtggccgctcccagcgtgttcatcttcccacctag
    cgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctaccc
    ccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagcc
    aggaaagcgtgaccgagcaggacagcaaggactccacctacagcctgagcagcacc
    ctgacactgagcaagaccgactacgagaaacacaaggtgtacgcctacgaagtgacc
    caccagggcctatctagccccgtgaccaagagcttcaaccagggcgagtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgcct SEQ ID
    gagctgactgcctccggattgatacgataacgcctggatgacctgggtcaggcagcct NO: 199
    ccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctggtcc
    gtggactacgcggaatctgtaaagggcggnacaatctcaagggacaataccaagaat
    accttgtatttgaagatgaacaacgtaagaactgaagacaccagatattacttctatgcca
    gaacagacaaatactacgacttctggtccagctatccccctggcgaggaatattttcaaa
    actggggtcagggaacccttgttatcgtgtcctccgacaaaacccatacccaggtgcagt
    tggtggagtctgggggaggcgtggtccagcctgggacgtccctgagactctcctgtgca
    gcactcaattcaggtttgatggttatggcatgcactgggtccgccaggccccaggcaag
    gggctggagtgggtggcatctatatcacatgatggaattaaaaagtatcacgcagaaaaa
    gtgtggggccgcttcaccataccagagacaattccaagaacacactgtatctacaaatg
    aacagcctgcgacctgaggacacggctctctactactgtgcgaaagatttgcgagaaga
    cgaatgtgaagagtggtggtcggattattacgattttgggaaacaactcccttgcgcaaag
    tcacgcggcggcttggttggaattgctgataactggggccaagggacaatggtcaccgt
    ctcttcagataagacccacaccgcttccaccaagggcccatcggtcttccccctggcacc
    ctcctccaagagcacctctgggggcacagcggccctgggctgcctggtcaaggactac
    ttccccgaaccggtgacggtgtcgtggaactcaggcgccagaccagcggcgtgcaca
    ccttcccagagtcctacagtcctcaggactctactccctcagcagcgtagtgaccatgc
    cctccagcagatggacacccagacctacatagcaacgtgaatcacaagcccagcaac
    accaaggtggacaagaaagttgagcccaaatcttgtgacaaaactcacacatgcccacc
    gtgcccagcacctgaactcctggggggaccgtcagtcttcctcttccccccaaaacccaa
    ggacaccctcatgatctcccggacccctgaggtcacatgcgtggtggtggacgtgagcc
    acgaagaccctgaggtcaagttcaactggtatgttgacggcgtggaggtgcataatgcc
    aagacaaagccgcgggaggagcagtacaacagcacgtaccgtgtggtcagcgtcctc
    accgtcagcaccaggactggctgaatgacaaggagtacaagtacaaggtaccaaca
    aagccacccaacccccatcgagaaaaccatctccaaagccaaagagcaaccccgag
    aaccacaggtgtacaccctgcccccatgccgggatgagctgaccaagaatcaagtcag
    cctgtggtgcctggtaaaaggcttctatcccagcgacatcgccgtggagtgggagagca
    atgggcagccggagaacaactacaagaccacgcctcccgtgaggactccgacggctc
    cttcttcactactcaaaactcaccgtggacaagagcaggtggcagcaggggaacgtat
    ctcatgctccgtgctgcatgaggctctgcacagccactacacgcagaagagcctctccct
    ataccgggt
    Light chain B cagtctgtgctgacgcagccgccctcagtgtctgcsgccccaggacagaaggt SEQ ID
    caccatctcctgactggaaacacctccaacattggcaataattttgtgtcctggtat NO: 200
    caacagcgccccggcagagccccccaactcctcatttatgaaactgacaagcga
    ccctcagggattcctgaccgattctctgcttccaagtctggtacgtcaggcaccct
    ggccatcaccgggctgcagactggggacgaggccgattattactgcgccacat
    gggctgccagectgagaccgcgcgtgtcttcggaactgggaccaaggtcatcg
    tcctggacaaaacccataccgcatccgaactgactcaggaccctgccgtctctgt
    ggcactgaagcagactgtgactattacttgccgaggcgactcactgcggagcca
    ctacgcttcctggtatcagaagaaacccggccaggcacctgtgctgctgttctac
    ggaaagaacaataggccatctggcatccccgaccgcttttctggcagtgcatcag
    ggaaccgagccagtctgaccattaccggcgcccaggctgctggacgaagccga
    ttactattgcagctcccgggataagagcggctccagactgagcgtgttcggagg
    aggaactaaactgaccgtcctcgataagacccatacccgtacggtggccgctcc
    cagcgtgttcatcttcccacctagcgacgagcagctgaagtccggcacagcctct
    gtcgtgtgcctgagaacaacttctacccccgcgaggccaaagtgcagtggaag
    gtggacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcag
    gacagcaaggactccacctacagcctgagcagcaccctgacactgagcaagg
    ccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcct
    gtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 26 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqts
    Figure US20190054182A1-20190221-P00028
    lfwfrqapgrglewvgw
    Figure US20190054182A1-20190221-P00029
    SEQ ID
    Figure US20190054182A1-20190221-P00030
    nfgggfrdrvtltrdvyreiaymdirglkpddtavyycar
    Figure US20190054182A1-20190221-P00031
    wg
    NO: 201
    qgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgv
    htfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkthtc
    ppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyvdgv
    evhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiektiska
    kgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpennykttpp
    vldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A yihvtqspsslsvsigdrvtincqts
    Figure US20190054182A1-20190221-P00032
    lhwyqhkpgrapkllihhtssvedgvp
    SEQ ID
    srfsgsgf
    Figure US20190054182A1-20190221-P00033
    fnltisdlqaddiatyyc
    Figure US20190054182A1-20190221-P00034
    rgsrlhikrtvaapsvfifppsdeql
    NO: 202
    ksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltlska
    dyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgrit SEQ ID
    gpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgkyy NO: 203
    dfwsgyppgeeyfqdwgqgtlvivssdkthtqvqlvesgggvvqpgtslrls
    caasqfrfdgygmhwvrqapgkglewvasishdgikkyhaekvwgrftisr
    dnskntlylqmnslrpedtalyycakdlredeceewwsdyydfgkqlpcaks
    rgglvgiadnwgqgtmvtvssdkthtastkgpsvfplapsskstsggtaalgcl
    vkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyic
    nvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvtlfppkpkdtl
    misrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyr
    vvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytlpp
    crdeltknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsffl
    yskltvdksrwqqgnvfscsvlhealhshylqkslslspg
    Light chain B qsvltqppsvsaapgqkvtiscsgntsnignnfvswyqqrpgrapqlliyetdkrpsgi SEQ ID
    pdrfsasksgtsgtlaitgtqtgdeadyycatwaaslssarvfgtgtkvivldkthtaselt NO: 204
    gdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgipdrfsg
    sasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtvaapsvfif
    ppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysl
    sstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 26 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtaggcaccgccatgaagaaaccaggcgcctagtgcggg SEQ ID
    tgtcctgtcagacaagcggctacaccttcaccgcccacatcctgactggaccggcagg NO: 205
    cccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtgaa
    cttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgagatc
    gcctacatagacatccggggcctaaaacccgatgacaccaccatgtactactgcgcca
    gagacagaagctacggcgacagcagctgaactctagatacttgggaccagggcacaa
    ccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggcccctagca
    gcaagagcacatctggcggaacagccgccctgggctgcctcgtgaaggactactttccc
    gagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtgcacacctttcc
    agctgtgctgcagtccagcggcctgtacaacctgagcagcgtcgtgacgtgcccagc
    agctctctggacacccagacctacatctgcaacgtgaaccacaagcccagcaacacca
    aggtggacaagaaggtggaacccaagagctgcgacaagacccacacctgtcccccttg
    tcctgcccccgaactgctgggaggcccttccgtgttcctgttccccccaaagcccaaaga
    caccctgatgatcagccggacccccgaagtgacctgcgtggtggtggatgtgtcccacg
    aggaccctgaagtgaagttcaattggtacgtggacggcgtggaagtgcacaacgccaa
    gaccaagccaagagaggaacagtacaacagcacctaccgggtggtatccgtgctgac
    cgtactacaccaggactagctgaacggcaaagagtacaagtgcaagatgtccaacaag
    gccagcctgcccccatcgagaaaaccatcagcaaggccaagggccagccccgcgaa
    ccccaggtgtgcacactgcccccaagcagggacgagatgaccaagaaccaggtatcc
    ctgagctgtgccgtgaaaggcttctacccaccgatatcgccgtggaatgggagagcaa
    cggccagcccgagaacaactacaagaccaccccccctgtgctggacagcgacggctc
    attcttcctgatgtccaagctaacagtagacaaatcccagtggcagcagggcaacatgtt
    cagctgctccgtgctgcatgaagctctacacagccactacacgcagaagagcctctccc
    tgtctccgggt
    Light chain A tacatccacatgacccaaagccccaacagcctgtccatgtccatcggcaacagagtga SEQ ID
    ccatcaactgccaaacactcaggacgtaggcagcaacctacactgatatcagcacaa NO: 206
    gcctggcagagcccccaagctgctgatccaccacacaagcagcgtgaaaaatgacgt
    gcccagcagattttccggcagcggcttccacaccagcttcaacctgaccatcagcgatct
    gcaggccgacgacattgccacctactattgtcaggtgctgcagttcttcggcagaggcag
    cagactgcacatcaagcgtacggtggccgctcccagcgtgttcatcacccacctagcga
    cgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctacccccg
    cgaggccaaagtacagtggaagatggacaacaccctacagagcggcaacagccagg
    aaagcgtgaccgagcaggacagcaaggactccacctacagcctgagcagcaccctga
    cactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccacc
    agggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgcct SEQ ID
    gagctgttctgcctccggctttgatttcgataacgcctggatgacctgggtcaggcagcct NO: 207
    ccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctggtcc
    gtggactacgcggaatctgttaaagggcggtttacaatctcaagggacaataccaagaat
    accttgtatttggagatgaacaacgtgagaactgaagacaccggatattacttctgtgcca
    gaacaggcaaatactacgacttctggtccggctatccccctggcgaggaatattttcaag
    actggggtcagggaacccttgttatcgtgtcctccgacaaaacccatacccaggtgcagt
    tggtggagtctgggggaggcgtggtccagcctgggacgtccctgagactctcctgtgca
    gcctctcaattcaggtttgatggttatggcatgcactgggtccgccaggccccaggcaag
    gggctggagtgggtggcatctatatatcatgatggaattaaattagtatcacgcagaaaaa
    gtgtggggccgcttcaccatctccagagacaattccaagaacacactgtatctacaaatg
    aacagcctgcgacctgaggacacggctctctactactgtgcgaaagatttgcgagaaga
    cgaatgtgaagagtggtggtcggattattacgattttgggaaacaactcccttgcgcaaag
    tcacgcggcggcttggttggaattgctgataactggggccaagggacaatggtcaccgt
    ctcttcagataagacccacaccgcttccaccaagggcccatcggtcttccccctggcacc
    ctcctccaagagcacctctgggggcacagcggccctgggctgcctggtcattggactac
    ttccccgaaccggtgacggtgtcgtggaactcaggcgccctgaccagcggcgtgcaca
    ccttcccggctgtcctacagtcctcaggactctactccctcagcagcgtggtgaccgtgc
    cctccagcagcttgggcacccagacctacatctgcaacgtgaattacaagcccagcaac
    accaaggtggacaagaaagttgagcccaaatcttgtgacaaaacicacacatgcccacc
    gtgcccagcacctgaactcctggggggaccgtcttgtcttcctcttccccccaaaacccaa
    ggacaccctcatgatctcccggacccctgaggtcacatgcgtggtggtggacgtgagcc
    acgaagaccctgaggtcaagttcaactggtatgttgacggcgtggaggtgcataatgcc
    aagacaaagccgcgggaggagcagtacaacagcacgtaccgtgtggtcagcgtcctc
    accgtcctgcaccaggactggctgaatggcaaggagtacaagtgcaaggtctccaaca
    aagccctcccagcccccatcgagaaaaccatctccaaagccaaagggcagccccgag
    aaccacaggtgtacaccctgcccccatgccgggatgagctgaccaagaatcaagtcag
    cctgtggtgcctggtaaaaggcttctatcccagcgacatcgccgtggagtgggagagca
    atgggcagccggagaacaactacaagaccacgcctcccgtgctggactccgacggctc
    cttcttcctccactcaaaactcaccgtggacaagagcaggtggcagcaggggaacgtctt
    ctcatgctccgtgctgcatgaggctctgcacagccactacacgcagaagagcctctccct
    gtctccgggt
    Light chain B cagtctgtgctgacgcagccgccctcagtgtctgcggccccaggacagaaggtcaccat SEQ ID
    ctcctgactggaaacacctccaacattggcaataattagtgtcctggtatcaacagcgcc NO: 208
    ccggcagagccccccaactcctcatttataaaactgacaagcgaccctcagggattcctg
    accgattctctgcttccaagtctggtacgtcaggcaccctggccatcaccgggctgcaga
    ctggggacgaggccgattattactgcgccacatgggctgccagcctgagttccgcgcgt
    gtcttcggaactgggaccaaggtcatcgtcctggacaaaacccataccgcatccgaact
    gactcaggaccctgccgtactgtggcactgaagcagactgtgactattacttgccgagg
    cgactcactgcggagccactacgcttcaggtatcagaagaaacccggccaggcacct
    gtgctgagttctacggaaagaacaataggccataggcatccccgaccaatttaggca
    gtgcatcagggaaccgagccagtctgaccattaccggcgcccaggctgaggacgaag
    ccgattactattgcagctcccgggataagagcggctccagactgagcgtgttcggagga
    ggaactaaactgaccgtcctcgataagacccatacccgtacggtggccgctcccagcgt
    gttcatatcccacctagcgacgagcagctgaagtccggcacagcctagtcgtgtgcct
    gctgaacaacttctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctg
    cagagcggcaacaaccaggaaagcgtgaccgagcaggacagcaaggactccaccta
    cagcctgagcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgta
    cgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccgg
    ggcgagtgt
    Binding Protein 27 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqts
    Figure US20190054182A1-20190221-P00035
    lfwfrqapgrglewvgw
    Figure US20190054182A1-20190221-P00036
    SEQ ID
    Figure US20190054182A1-20190221-P00037
    nfgggfrdrvtltrdvyreiaymdirglkpddtavyycar
    Figure US20190054182A1-20190221-P00038
    wg
    NO: 209
    qgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgv
    htfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscdkthtc
    ppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnwyvdgv
    evhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapiektiska
    kgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpennykttpp
    vldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID
    psrfsgsgfhtsfnltisdlqaddiatyycqlqffgrgsrlhikrtvaapsvfifppsdeq NO: 210
    lksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltlsk
    adyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgri SEQ ID
    tgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgky NO: 211
    ydfwsgyppgeeyfqdwgqgtlvivssdkthtqvhltqsgpevrkpgtsvk
    vsckapgntlktydlhwvrsvpgqglqwmgwishegdkkviverfkakvti
    dwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddgalnwavdvd
    ylsnlefwgqgtavtvssdkthtastkgpsvfplapsskstsggtaalgclvkdy
    fpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnh
    kpsntkvdkkvepkscdkthtcppcpapellggpsvilfppkpkdtlmisrtp
    evtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynstyrvvsvltv
    lhqdwlngkeykckvsnkalpapiektiskakgqprepqvytlppcrdeltk
    nqvslwclvkgfypsdiavevvesngqpennykttppvldsdgsfllyskltv
    dksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain B dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassra SEQ ID
    sgvpdrfsgsgsdkdftikisrvetedvgtyycmqgrespwtfgqgtkvdikdkthta NO: 212
    seltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgipdr
    fsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtvaaps
    vfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdst
    yslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 27 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatccgttctggttccggcag NO: 213
    gcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgt
    gaacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcga
    gatcacctacatagacatccagggcctaaaacccgatgacaccaccatgtactactgc
    gccagagacagaagctacggcgacagcagctgggctctggatgcttggggccaggg
    cacaaccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggccc
    ctagcagcaagagcacatctggcggaacagccgccagggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaattaggcgccctgaccagcgggtgca
    cacctttccagctatgctgcagtccagcaacctgtacagcctaagcagcgtcgtgaca
    atgcccagcagctactgggcacccagacctacatctacaacatgaaccacaaaccca
    gcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccacac
    ctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttcccccc
    aaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggt
    ggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtggaa
    gtgcacaacgccaagaccaagccaagagaaaaacaatacaacagcacctaccaggt
    ggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtg
    caaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggccaa
    gggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctg
    accaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatatcgc
    cgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctg
    tgctgaacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccga
    tggcagcagggcaacgtgttcagctgctccgtgctgcacgaggccctgcacagccact
    acacccagaagtccctgagcctgagccccggc
    Light chain A tacatccacgtaacccagaaccccagcagcctatccgtatccatcgacgacaaagtga SEQ ID
    ccatcaactgccagacctctcagggcgtgggcagcgacctgcactggtatcagcacaa NO: 214
    gcctggcagagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgt
    gcccagcagattttccggcagcggcttccacaccagcttccagagaccatcagcgatc
    tgcaggccgacgacattgccacctactattgtcaggtgctgcagttcttcggcagaggc
    agcagactgcacatcaagcgtacggtggccgctcccagcgtgttcatcttcccacctag
    cgacgagcagagaagtccggcacagcctctgtcgtgtgcctgagaacaacttctacc
    cccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacag
    ccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctgagcagca
    ccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtga
    cccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgc SEQ ID
    ctgagctgactgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 215
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtgactacgcggaatctgttaaaggcggatacaatctcaaggpacaatacca
    agaataccttgtatttgaagatgaacaacgtaagaactgaagacaccaaatattacttct
    gtgccagaacaggcaaatactacgacttctggtccggctatccccctggcgaggaatat
    tttcaagactggggtcagggaacccagttatcgtgtcctccgacaaaacccatacccag
    gtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaaggtg
    tcctgcaaggcccctagcaacaccctgaaaacctacgacctgcactgggtgcgcagc
    gtgccaggacagggactgcagtggatgggctggatcagccacgagggcgacaaga
    aagtgatcgtggaacagttcaaggccaaaatgaccatcgactaagacagaagcacca
    acaccgcctacctgagctgagcggcctgacctctggcgataccgccgtgtactactg
    cgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgacggcg
    ccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggccagg
    gcacagccgtgaccgtgtcatctgataagacccacaccgcttccaccaagagcccatc
    ggtcttccccctggcaccctcctccaagagcacctctgggaacacaacggccctgaa
    ctgcctgatcaagaactacttccccaaaccaatgacggtgtcgtaaaactcagacgcc
    ctgaccagcggcatgcacaccttcccggagtcctacaatcctcaaaactctactccct
    cagcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaac
    gtgaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgtg
    acaaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtcag
    tcttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggtca
    catgcgtggtagtgaacatgagccacgaagaccctgaggtcaaattcaactggtatgtt
    gacggcgtgaaggtgcataatgccaagacaaagccgcaggaggagcagtacaaca
    gcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctgaatggcaa
    ggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaaccat
    ctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgcc
    gggatgagctgaccaagaatcaagtcagcctgtggtgcctagtaaaaggcttctatccc
    agcgacatcgccatggagtgagagagcaataggcagccggagaacaactacaaga
    ccacgcctcccgtgaggactccgacggctccttcacctctactcaaaactcaccgtgg
    acaagagcaggtggcagcaggggaacgtcttctcatgctccgtgctgcatgaggctct
    gcacagccactacacgcagaagagcctctccctgtctccgggt
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgcc SEQ ID
    agcatcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctg NO: 216
    gcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagca
    gcagagccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttca
    ccctgaagatcaaccgggtagaaaccgaggacgtaggcacctactactgtatgcagg
    gcagagagagcccctggacctttagccaggacaccaagatggacatcaagaacaaa
    acccataccgcatccgaactgactcaggaccctgccgtctctgtggcactgaagcaga
    ctgtgactattacttgccgaggcgactcactgcggagccactacgcttcctggtatcaga
    agaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggccatctgg
    catccccgaccgcttttctggcagtgcatcagggaaccgagccagtctgaccattaccg
    gcgcccaggctgaggacgaagccgattactattgcagctcccgggataagagcggct
    ccagactgagcgtgttcggaggaggaactaaactgaccgtcctcgataagacccatac
    ccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagt
    ccggcacagcactgtcgtgtacctgagaacaacttctacccccgcgagaccaaagt
    gcagtggaaggtggacaacaccctgcagagcggcaacagccaggaaagcgtgacc
    gagcaggacagcaaggactccacctacagcctgagcagcaccctgacactgagcaa
    ggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgt
    ctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 28 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqts
    Figure US20190054182A1-20190221-P00039
    lfwfrqapgrglewvgw
    Figure US20190054182A1-20190221-P00040
    SEQ ID
    Figure US20190054182A1-20190221-P00041
    nfgggfrdrvtltrdvyreiaymdirglkpddtavyycar
    Figure US20190054182A1-20190221-P00042
    NO: 217
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID
    psrfsgsgfhtsfnltisdlqaddiatyycqlqffgrgsrlhikrtvaapsvfifppsde NO: 218
    qlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgr SEQ ID
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgky NO: 219
    ydfwsgyppgeeyfqdwgqgtlvivssdkthtqvhltqsgpevrkpgtsv
    kvsckapgntlktydlhwvrsvpgqglqwmgwishegdkkviverfkak
    vtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddgalnwav
    dvdylsnlefwgqgtavtvssdkthtastkgpsvfplapsskstsggtaalgcl
    vkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyi
    cnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdt
    lmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynsty
    rvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytlp
    pcrdeltknqvslwclvkgfypsdiavevvesngqpennykttppvldsdgs
    fllyskltvdksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain B dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID
    asgvpdrfsgsgsdkdftikisrvetedvgtyycmqgrespwtfgqgtkvdikdkth NO: 220
    taseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgi
    pdrfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteq
    dskdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 28 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggca NO: 221
    ggcccctcgcagaggactggaatgggtggatggatcaagccccagtatggcgccg
    tgaacttcagcggaggcaccaggatagagtaaccagacccgggacgtgtaccacg
    agatcgcctacatggacatccggggcctgaagcccgatgacaccgccgtgtactactg
    cgccagagacagaagctacggcgacagcagctgggctctggatgcttggggccagg
    gcacaaccgtggtggtgtagccgcctctacaaagggccccagcgtgttccactggc
    ccctagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtggagg
    actactttcccgagcccatgaccatgtcctggaattaggcaccctgaccagcggcgtg
    cacacctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtga
    cagtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagc
    ccagcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagaccca
    cacctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttccc
    cccaaagcccaaagacaccctgatgatcagccggacccccgaagtaacctacgtggt
    ggtggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacgacgtg
    gaagtgcacaacgccaagaccaagccaagagaaaaacaatacaacagcacctacc
    gggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtaca
    agtgcaaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaagg
    ccaagggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacga
    gctgaccaagaaccaggtatccctgaactatgccgtgaaaggcttctacccctccgata
    tcgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccc
    cctgtgctggacaacgacggctcattcttcctagtgtccaaactgacagtggacaagtc
    ccggtggcagcagggcaacgtgttcagctgctccgtgctgcacgaggccctgcacag
    ccactacacccagaagtccctgagcctgagccccggc
    Light chain A tacatccacgtaacccagaaccccagcagcctatccgtatccatcgacgacaaagtg SEQ ID
    accatcaactgccagacctctcagggcgtgggcagcgacctgcactggtatcagcac NO: 222
    aagcctggcagagcccccaagctgctgatccaccacacaagcagcgtggaagaagg
    cgtgcccagcagattttccggcagcggcttccacaccagcttcaacctgaccatcagc
    aatctgcaggccgacgacattgccacctactattgtcaggtactgcagttcttcggcaaa
    ggcagcagactgcacatcaagcgtacaatggccgctcccagcgtgttcatcttcccac
    ctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaactt
    ctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggc
    aacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctga
    gcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgc
    gaagtgacccaccagagcctgtctagccccgtaaccaagaacttcaaccggagcga
    gtgt
    Heavy chain B gaggttagactggtggaatcaggaggggggcttgtgaagcccggtgggtctctccgc SEQ ID
    ctgagctgttctgcaccagctttgatttcgataacgcctggatgacctgggtcagacaa NO: 223
    cctccaggtaagggactaaagtgggtaggaagaatcacaggtccaggcgaaggctg
    gtccatggactacacggaatctgttaaagggcggtttacaatctcaaaggacaatacca
    agaataccttgtatttggagatgaacaacgtgagaactgaagacaccggatattacttct
    gtgccagaacaggcaaatactacgacttctggtccggctatccccctggcgaggaatat
    tttcaagactggggtcagggaacccttgttatcgtgtcctccgacaaaacccatacccag
    gtgcacctgacacagagcggacccgaagtgcgaaaacctggcacctagtgaaggt
    gtcctgcaagacccaggcaacaccctgaaaacctacgacctgcactggatgcgcag
    cgtaccaggacaaggactgcaatggatgggctgaatcagccacgagggcgacaag
    aaagtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacagaagcacc
    aacaccgcctacctgcagctgagcggcctgacctctggcgataccgccgtgtactact
    gcgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgacgg
    cgccctgaactgagccgtggatgtggactacctgagcaacctggaattaggggccag
    ggcacagccatgaccgtgtcatctgataagacccacaccgcttccaccaagggcccat
    cggtcttccccctggcaccctcctccaagagcacctctgggggcacagcggccctgg
    gctgcctggtcaaggactacttccccgaaccggtgacggtgtcgtggaactcaggcgc
    cctgaccagcggcgtgcacaccttcccggagtcctacagtcctcaggactctactccc
    tcagcagcgtagtgaccgtgccctccaacagcttgggcacccagacctacatctgcaa
    cgtgaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgt
    gacaaaactcacacatgcccaccgtgcccagcacctaaactcctggggaaaccgtca
    gtcttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggt
    cacatgcgtggtggtggacgtgagccacgaagaccctgaggtcaagttcaactggtat
    gttgacggcgtggaggtgcataatgccaagacaaagccgcgggaggagcagtacaa
    cagcacgtaccgtgtggtcaacgtcctcaccgtcctgcaccaggactggctgaatgac
    aaggaatacaagtacaaggtaccaacaaagccctcccagcccccatcgagaaaacc
    atctccaaagccaaagggcagccccgagaaccacaggtgtacaccctacccccatgc
    cgggatgagctgaccaagaatcaagtcagcctgtggtgcctggtaaaaggcttctatcc
    cagcgacatcgccgtggagtgggagagcaatgggcagccggagaacaactacaag
    accacgcctcccgtgctggactccgacggctccttcttcctctactcaaaactcaccgtg
    gacaagagcaggtggcagcaggggaacgtcttctcatgctccgtgctgcatgaggctc
    tgcacagccactacacgcagaagagcctaccagtctccggat
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgcc SEQ ID
    agcatcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctg NO: 224
    gcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagca
    gcagagccagcggcdgcccgatagatataggcagcggcagcgacaaggacttca
    ccctgaagatcagccgaatggaaaccaaggacatgggcacctactactgtatacagg
    gcagagagagcccaggacctttggccagggcaccaaggtggacatcaaggacaaa
    acccataccgcatccgaactgactcaggaccctgccgtctctgtggcactgaagcaga
    ctgtgactattacttgccgaggcgactcactgcggagccactacgcttcctggtatcaga
    agaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggccatctgg
    catccccaaccgcttttctggcaatgcatcagagaaccaagccagtctgaccattaccg
    gcacccaagagaggacaaaaccaattactattacaactcccgggataagagcgact
    ccagactgagcgtgttcggaggaggaactaaactgaccgtcctcgataagacccatac
    ccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaag
    tccggcacagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagt
    gcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcggacc
    gagcaagacagcaaggactccacctacagcctgaacaacaccctgacactgagcaa
    ggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgt
    ctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 29 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqts
    Figure US20190054182A1-20190221-P00043
    lfwfrqapgrglewvgw
    Figure US20190054182A1-20190221-P00044
    SEQ ID
    Figure US20190054182A1-20190221-P00045
    nfgggfrdrvtltrdvyreiaymdirglkpddtavyycar
    Figure US20190054182A1-20190221-P00046
    NO: 225
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedav SEQ ID
    psrfsgsgfhtsfnltisdlqaddiatyycqlqffgrgsrlhikrtvaapsvfifppsde NO: 226
    qlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgr SEQ ID
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 227
    yydfwsgyppgeeyfqdwgqgtlvivssdkthtqvhltqsgpevrkpgtsv
    kvsckapgntlktydlhwvrsvpgqglqwmgwishegdkkviverfkak
    vtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddgalnwav
    dvdylsnlefwgqgtavtvssdkthtastkgpsvfplapsskstsggtaalgcl
    vkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyi
    cnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdt
    lmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynsty
    rvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytlp
    pcrdeltknqvslwclvkgfypsdiavevvesngqpennykttppvldsdgs
    fllyskltvdksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain B dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID
    asgvpdrfsgsgsdkdftikisrvetedvgtyycmqgrespwtfgqgtkvdikdkth NO: 228
    taseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgi
    pdrfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteq
    dskdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 29 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatccgttctggttccggcag NO: 229
    gcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtg
    aacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgag
    atcacctacatagacatccagggcctaaaacccgatgacaccaccatgtactactgcg
    ccagagacagaagctacggcgacagcagctgggctctggatgcttggggccagggc
    acaaccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggcccc
    tagcagcaagagcacatctggcggaacagccgccagggctgcctcgtgaaggacta
    ctttcccgagcccgtgaccgtgtcctggaattaggcgccctgaccagcgggtgcac
    acctttccagctatgctgcagtccagcaacctgtacagcctaagcagcgtcgtgacagt
    gcccagcagctactgggcacccagacctacatctacaacatgaaccacaaacccag
    caacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccacacct
    gtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttccccccaa
    agcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggtgg
    atgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtggaagt
    gcacaacgccaagaccaagccaagagaaaaacaatacaacagcacctaccgggtg
    gtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtgc
    aaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggccaag
    ggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctga
    ccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatatcgcc
    gtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctgt
    gctgaacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccggt
    ggcagcagggcaacgtgttcagctgctccgtgctgcacgaggccctgcacagccact
    acacccagaagtccctgagcctgagccccggc
    Light chain A tacatccacgtaacccagaaccccagcagcctatccgtatccatcgacgacaaagtga SEQ ID
    ccatcaactgccagacctctcagggcgtgggcagcgacctgcactggtatcagcacaa NO: 230
    gcctggcagagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgt
    gcccagcagattttccggcagcggcttccacaccagcttccagagaccatcagcgatc
    tgcaggccgacgacattgccacctactattgtcaggtgctgcagttcttcggcagaggc
    agcagactgcacatcaagcgtacggtggccgctcccagcgtgttcatcttcccacctag
    cgacgagcagagaagtccggcacagcctctgtcgtgtgcctgagaacaacttctacc
    cccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacag
    ccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctgagcagca
    ccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtga
    cccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgc SEQ ID
    ctgagctgactgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 231
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtgactacgcggaatctgttaaaggcggatacaatctcaaggpacaatacca
    agaataccttgtatttgaagatgaacaacgtaagaactgaagacaccaaatattacttct
    gtgccagaacaggcaaatactacgacttctggtccggctatccccctggcgaggaatat
    tttcaagactggggtcagggaacccagttatcgtgtcctccgacaaaacccatacccag
    gtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaaggtg
    tcctgcaaggcccctagcaacaccctgaaaacctacgacctgcactgggtgcgcagc
    gtgccaggacagggactgcagtggatgggctggatcagccacgagggcgacaaga
    aagtgatcgtggaacagttcaaggccaaaatgaccatcgactaagacagaagcacca
    acaccgcctacctgagctgagcggcctgacctctggcgataccgccgtgtactactg
    cgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgacggcg
    ccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggccaggg
    cacagccgtgaccgtgtcatctgataagacccacaccgcttccaccaagagcccatcg
    gtcttccccctggcaccctcctccaagagcacctctgggaacacaacggccctgggct
    gcctgatcaagaactacttccccaaaccaatgacggtgtcgtaaaactcagacgccct
    gaccagcggcatgcacaccttcccggagtcctacaatcctcaaaactctactccctca
    gcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaacgt
    gaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgtga
    caaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtcagt
    cttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggtca
    catgcgtggtagtgaacatgagccacgaagaccctgaggtcaaattcaactggtatgtt
    gacggcgtgaaggtgcataatgccaagacaaagccgcaggaggagcagtacaaca
    gcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctgaatggcaa
    ggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaaccat
    ctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgcc
    gggatgagctgaccaagaatcaagtcagcctgtggtgcctagtaaaaggcttctatccc
    agcgacatcgccatggagtgagagagcaataggcagccggagaacaactacaaga
    ccacgcctcccgtgaggactccgacggctccttcacctctactcaaaactcaccgtgg
    acaagagcaggtggcagcaggggaacgtcttctcatgctccgtgctgcatgaggctct
    gcacagccactacacgcagaagagcctctccctgtctccgggt
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgcc SEQ ID
    agcatcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctg NO: 301
    gcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagca
    gcagagccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttca
    ccctgaagatcaaccgggtagaaaccgaggacgtaggcacctactactgtatgcagg
    gcagagagagcccctggacctttagccaggacaccaagatggacatcaagaacaaa
    acccataccgcatccgaactgactcaggaccctgccgtctctgtggcactgaagcaga
    ctgtgactattacttgccgaggcgactcactgcggagccactacgcttcctggtatcaga
    agaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggccatctgg
    catccccgaccgcttttctggcagtgcatcagggaaccgagccagtctgaccattaccg
    gcgcccaggctgaggacgaagccgattactattgcagctcccgggataagagcggct
    ccagactgagcgtgttcggaggaggaactaaactgaccgtcctcgataagacccatac
    ccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagt
    ccggcacagcactgtcgtgtacctgagaacaacttctacccccgcgagaccaaagt
    gcagtggaaggtggacaacaccctgcagagcggcaacagccaggaaagcgtgacc
    gagcaggacagcaaggactccacctacagcctgagcagcaccctgacactgagcaa
    ggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgt
    ctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 30 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqts
    Figure US20190054182A1-20190221-P00047
    lfwfrqapgrglewvgwi
    Figure US20190054182A1-20190221-P00048
    SEQ ID
    Figure US20190054182A1-20190221-P00049
    nfgggfrdrvtltrdvyreiaymdirglkpddtavyycar
    Figure US20190054182A1-20190221-P00050
    NO: 232
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedav SEQ ID
    psrfsgsgfhtsfnltisdlqaddiatyycqlqffgrgsrlhikrtvaapsvfifppsde NO: 233
    qlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgr SEQ ID
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 234
    yydfwsgyppgeeyfqdwgqgtlvivssdkthtqvhltqsgpevrkpgtsv
    kvsckapgntlktydlhwvrsvpgqglqwmgwishegdkkviverfkak
    vtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddgalnwav
    dvdylsnlefwgqgtavtvssdkthtastkgpsvfplapsskstsggtaalgcl
    vkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyi
    cnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdt
    lmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynsty
    rvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytlp
    pcrdeltknqvslwclvkgfypsdiavevvesngqpennykttppvldsdgs
    fllyskltvdksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain B dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID
    asgvpdrfsgsgsdkdftikisrvetedvgtyycmqgrespwtfgqgtkvdikdkth NO: 235
    taseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgi
    pdrfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteq
    dskdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 30 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatccgttctggttccggcag NO: 236
    gcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtg
    aacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgag
    atcacctacatagacatccagggcctaaaacccgatgacaccaccatgtactactgcg
    ccagagacagaagctacggcgacagcagctgggctctggatgcttggggccagggc
    acaaccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggcccc
    tagcagcaagagcacatctggcggaacagccgccagggctgcctcgtgaaggacta
    ctttcccgagcccgtgaccgtgtcctggaattaggcgccctgaccagcgggtgcac
    acctttccagctatgctgcagtccagcaacctgtacagcctaagcagcgtcgtgacagt
    gcccagcagctactgggcacccagacctacatctacaacatgaaccacaaacccag
    caacaccaaggtggacaagaaggtggaacccaagagctgcgacaagacccacacct
    gtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttccccccaa
    agcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtggtgg
    atgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtggaagt
    gcacaacgccaagaccaagccaagagaaaaacaatacaacagcacctaccgggtg
    gtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtgc
    aaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaaggccaag
    ggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacgagctga
    ccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgatatcgcc
    gtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccctgt
    gctgaacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtcccggt
    ggcagcagggcaacgtgttcagctgctccgtgctgcacgaggccctgcacagccact
    acacccagaagtccctgagcctgagccccggc
    Light chain A tacatccacgtaacccagaaccccagcagcctatccgtatccatcgacgacaaagtga SEQ ID
    ccatcaactgccagacctctcagggcgtgggcagcgacctgcactggtatcagcacaa NO: 237
    gcctggcagagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgt
    gcccagcagattttccggcagcggcttccacaccagcttccagagaccatcagcgat
    ctgcaggccgacgacattgccacctactattgtcaggtgctgcagttcttcggcagagg
    cagcagactgcacatcaagcgtacggtggccgctcccagcgtgttcatcttcccaccta
    gcgacgagcagagaagtccggcacagcctctgtcgtgtgcctgagaacaacttctac
    ccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaaca
    gccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctgagcag
    caccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagt
    gacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgc SEQ ID
    ctgagctgactgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 238
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtgactacgcggaatctgttaaaggcggatacaatctcaaggpacaatacca
    agaataccttgtatttgaagatgaacaacgtaagaactgaagacaccaaatattacttct
    gtgccagaacaggcaaatactacgacttctggtccggctatccccctggcgaggaatat
    tttcaagactggggtcagggaacccagttatcgtgtcctccgacaaaacccatacccag
    gtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaaggtg
    tcctgcaaggcccctagcaacaccctgaaaacctacgacctgcactgggtgcgcagc
    gtgccaggacagggactgcagtggatgggctggatcagccacgagggcgacaaga
    aagtgatcgtggaacagttcaaggccaaaatgaccatcgactaagacagaagcacca
    acaccgcctacctgagctgagcggcctgacctctggcgataccgccgtgtactactg
    cgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgacggcg
    ccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggccaggg
    cacagccgtgaccgtgtcatctgataagacccacaccgcttccaccaagagcccatcg
    gtcttccccctggcaccctcctccaagagcacctctgggaacacaacggccctgggct
    gcctgatcaagaactacttccccaaaccaatgacggtgtcgtaaaactcagacgccct
    gaccagcggcatgcacaccttcccggagtcctacaatcctcaaaactctactccctca
    gcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaacgt
    gaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgtga
    caaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtcagt
    cttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggtca
    catgcgtggtagtgaacatgagccacgaagaccctgaggtcaaattcaactggtatgtt
    gacggcgtgaaggtgcataatgccaagacaaagccgcaggaggagcagtacaaca
    gcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctgaatggcaa
    ggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaaccat
    ctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgcc
    gggatgagctgaccaagaatcaagtcagcctgtggtgcctagtaaaaggcttctatccc
    agcgacatcgccatggagtgagagagcaataggcagccggagaacaactacaaga
    ccacgcctcccgtgaggactccgacggctccttcacctctactcaaaactcaccgtgg
    acaagagcaggtggcagcaggggaacgtcttctcatgctccgtgctgcatgaggctct
    gcacagccactacacgcagaagagcctctccctgtctccgggt
    Light chain B Gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgc SEQ ID
    cagcatcagctgcaagagcagccactccctgatccacggcgaccggaacaactacct NO: 239
    ggcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagc
    agcagagccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttc
    accctgaagatcaaccgggtagaaaccgaggacgtaggcacctactactgtatgcag
    ggcagagagagcccctggacctttagccaggacaccaagatggacatcaagaacaa
    aacccataccgcatccgaactgactcaggaccctgccgtctctgtggcactgaagcag
    actgtgactattacttgccgaggcgactcactgcggagccactacgcttcctggtatcag
    aagaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggccatctg
    gcatccccgaccgcttttctggcagtgcatcagggaaccgagccagtctgaccattacc
    ggcgcccaggctgaggacgaagccgattactattgcagctcccgggataagagcggc
    tccagactgagcgtgttcggaggaggaactaaactgaccgtcctcgataagacccata
    cccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaa
    gtccggcacagcactgtcgtgtacctgagaacaacttctacccccgcgagaccaaa
    gtgcagtggaaggtggacaacaccctgcagagcggcaacagccaggaaagcgtga
    ccgagcaggacagcaaggactccacctacagcctgagcagcaccctgacactgagc
    aaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcct
    gtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 31 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqts
    Figure US20190054182A1-20190221-P00051
    ilfwfrqapgrglewvgw
    Figure US20190054182A1-20190221-P00052
    SEQ ID
    Figure US20190054182A1-20190221-P00053
    nfgggfrdrvtltrdvyreiaymdirglkpddtavyycar
    Figure US20190054182A1-20190221-P00054
    NO: 240
    wgqgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgal
    tsgvhtfpavlqssglyslssvvtvpssslgtqtyicnvnhkpsntkvdkkvepkscd
    kthtcppcpapellggpsvflfppkpkdtlmisrtpevtcvvvdvshedpevkfnw
    yvdgvevhnaktkpreeqynstyrvvsvltvlhqdwlngkeykckvsnkalpapi
    ektiskakgqprepqvetlppsrdeltknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqqgnvfscsvmhealhnhytqkslslspg
    Light chain A Yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssveda SEQ ID
    vpsrfsgsgfhtsfnltisdlqaddiatyycqlqffgrgsrlhikrtvaapsvfifppsd NO: 241
    eqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt
    lskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Evrlvesggglvkpggslrlscsasgfdfdnawmtwvrqppgkglewvgr SEQ ID
    itgpgegwsvdyaesvkgrftisrdntkntlylemnnvrtedtgyyfcartgk NO: 242
    yydfwsgyppgeeyfqdwgqgtlvivssdkthtqvhltqsgpevrkpgtsv
    kvsckapgntlktydlhwvrsvpgqglqwmgwishegdkkviverfkak
    vtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddgalnwav
    dvdylsnlefwgqgtavtvssdkthtastkgpsvfplapsskstsggtaalgcl
    vkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtqtyi
    cnvnhkpsntkvdkkvepkscdkthtcppcpapellggpsvflfppkpkdt
    lmisrtpevtcvvvdvshedpevkfnwyvdgvevhnaktkpreeqynsty
    rvvsvltvlhqdwlngkeykckvsnkalpapiektiskakgqprepqvytlp
    pcrdeltknqvslwclvkgfypsdiavevvesngqpennykttppvldsdgs
    fllyskltvdksrwqqgnvfscsvlhealhshytqkslslspg
    Light chain B dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassr SEQ ID
    asgvpdrfsgsgsdkdftikisrvetedvgtyycmqgrespwtfgqgtkvdikdkth NO: 243
    taseltqdpavsvalkqtvtitcrgdslrshyaswyqkkpgqapvllfygknnrpsgi
    pdrfsgsasgnrasltitgaqaedeadyycssrdksgsrlsvfgggtkltvldkthtrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteq
    dskdstyslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 31 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgg SEQ ID
    gtgtcctgtcagacaagcggctacaccttcaccgcccacatccgttctggttccggca NO: 244
    ggcccctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccg
    tgaacttcggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcg
    agatcacctacatagacatccagggcctaaaacccgatgacaccaccatgtactactg
    cgccagagacagaagctacggcgacagcagctgggctctggatgcttggggccagg
    gcacaaccgtggtggtgtctgccgcctctacaaagggccccagcgtgttccctctggc
    ccctagcagcaagagcacatctggcggaacagccgccctgggctgcctcgtgaagg
    actactttcccgagcccgtgaccgtgtcctggaattctggcgccctgaccagcggcgtg
    cacacctttccagctgtgctgcagtccagcggcctgtacagcctgagcagcgtcgtga
    cagtgcccagcagctctctgggcacccagacctacatctgcaacgtgaaccacaagc
    ccagcaacaccaaggtggacaagaaggtggaacccaagagctgcgacaagaccca
    cacctgtcccccttgtcctgcccccgaactgctgggaggcccttccgtgttcctgttccc
    cccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggt
    ggtggatgtgtcccacgaggaccctgaagtgaagttcaattggtacgtggacggcgtg
    gaagtgcacaacgccaagaccaagccaagagaaaaacagtacaacagcacctacc
    gggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtaca
    agtgcaaggtgtccaacaaggccctgcctgcccccatcgagaaaaccatcagcaagg
    ccaagggccagccccgcgaaccccaggtgtgcacactgcccccaagcagggacga
    gctgaccaagaaccaggtgtccctgagctgtgccgtgaaaggcttctacccctccgata
    tcgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccc
    cctgtgctgaacagcgacggctcattcttcctggtgtccaagctgacagtggacaagtc
    ccggtggcagcagggcaacgtgttcagctgctccgtgctgcacgaggccctgcacag
    ccactacacccagaagtccctgagcctgagccccggc
    Light chain A tacatccacgtaacccagaaccccagcagcctatccgtatccatcgacgacagagtg SEQ ID
    accatcaactgccagacctctcagggcgtgggcagcgacctgcactggtatcagcac NO: 245
    aagcctggcagagcccccaagctgctgatccaccacacaagcagcgtggaagatgc
    cgtgcccagcagattttccggcagcggcttccacaccagcttccagagaccatcagc
    gatctgcaggccgacgacattgccacctactattgtcaggtgctgcagttcttcggcaga
    ggcagcagactgcacatcaagcgtacggtggccgctcccagcgtgttcatcttcccac
    ctagcgacgagcagagaagtccggcacagcctctgtcgtgtgcctgagaacaactt
    ctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggc
    aacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctga
    gcagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgc
    gaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcga
    gtgt
    Heavy chain B gaggttagactggtggagtcaggaggggggcttgtgaagcccggtgggtctctccgc SEQ ID
    ctgagctgactgcctccggctttgatttcgataacgcctggatgacctgggtcaggcag NO: 246
    cctccaggtaagggactggagtgggtgggaagaatcacaggtccaggcgagggctg
    gtccgtgactacgcggaatctgttaaaggcggatacaatctcaaggpacaatacca
    agaataccttgtatttgaagatgaacaacgtaagaactgaagacaccaaatattacttct
    gtgccagaacaggcaaatactacgacttctggtccggctatccccctggcgaggaatat
    tttcaagactggggtcagggaacccagttatcgtgtcctccgacaaaacccatacccag
    gtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaaggt
    gtcctgcaaggcccctagcaacaccctgaaaacctacgacctgcactgggtgcgcag
    cgtgccaggacagggactgcagtggatgggctggatcagccacgagggcgacaag
    aaagtgatcgtggaacagttcaaggccaaaatgaccatcgactaagacagaagcacc
    aacaccgcctacctgagctgagcggcctgacctctggcgataccgccgtgtactact
    gcgccaagggcagcaagcaccggctgagagactacgccctgtacgacgatgacgg
    cgccctgaactgggccgtggatgtggactacctgagcaacctggaattctggggccag
    ggcacagccgtgaccgtgtcatctgataagacccacaccgcttccaccaagagcccat
    cggtcttccccctggcaccctcctccaagagcacctctgggggcacaacggccctgg
    gctgcctgatcaagaactacttccccaaaccaatgacggtgtcgtaaaactcaggcgc
    cctgaccagcggcatgcacaccttcccggagtcctacaatcctcaaaactctactccc
    tcagcagcgtggtgaccgtgccctccagcagcttgggcacccagacctacatctgcaa
    cgtgaatcacaagcccagcaacaccaaggtggacaagaaagttgagcccaaatcttgt
    gacaaaactcacacatgcccaccgtgcccagcacctgaactcctggggggaccgtca
    gtcttcctcttccccccaaaacccaaggacaccctcatgatctcccggacccctgaggt
    cacatgcgtggtagtgaacatgagccacgaagaccctgaggtcaaattcaactggtat
    gttgacggcgtgaaggtgcataatgccaagacaaagccgcaggaggagcagtacaa
    cagcacgtaccgtgtggtcagcgtcctcaccgtcctgcaccaggactggctgaatggc
    aaggagtacaagtgcaaggtctccaacaaagccctcccagcccccatcgagaaaacc
    atctccaaagccaaagggcagccccgagaaccacaggtgtacaccctgcccccatgc
    cgggatgagctgaccaagaatcaagtcagcctgtggtgcctagtaaaaggcttctatcc
    cagcgacatcgccatggagtgagagagcaataggcagccggagaacaactacaag
    accacgcctcccgtgaggactccgacggctccttcacctctactcaaaactcaccgtg
    gacaagagcaggtggcagcaggggaacgtcttctcatgctccgtgctgcatgaggctc
    tgcacagccactacacgcagaagagcctctccctgtctccgggt
    Light chain B Gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgc SEQ ID
    cagcatcagctgcaagagcagccactccctgatccacggcgaccggaacaactacct NO: 247
    ggcttggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagc
    agcagagccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttc
    accctgaagatcaaccgggtagaaaccgaggacgtaggcacctactactgtatgcag
    ggcagagagagcccctggacctttagccaggacaccaagatggacatcaagaacaa
    aacccataccgcatccgaactgactcaggaccctgccgtctctgtggcactgaagcag
    actgtgactattacttgccgaggcgactcactgcggagccactacgcttcctggtatcag
    aagaaacccggccaggcacctgtgctgctgttctacggaaagaacaataggccatctg
    gcatccccgaccgcttttctggcagtgcatcagggaaccgagccagtctgaccattacc
    ggcgcccaggctgaggacgaagccgattactattgcagctcccgggataagagcgg
    ctccagactgagcgtgttcggaggaggaactaaactgaccgtcctcgataagacccat
    acccgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctga
    agtccggcacagcactgtcgtgtacctgagaacaacttctacccccgcgagaccaa
    agtgcagtggaaggtggacaacaccctgcagagcggcaacagccaggaaagcgtg
    accgagcaggacagcaaggactccacctacagcctgagcagcaccctgacactgag
    caaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcc
    tgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 32 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikpqyq SEQ ID
    avnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswaldawg NO: 302
    qgttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgv
    htfpavlqssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcpp
    cpapeflggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvev
    hnaktkpreeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakg
    qprepqvytlppcqeemtknqvslwclvkgfypsdiavewesngqpennykttpp
    vldsdgsfflyskltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv SEQ ID
    psrfsgsgfhtsfnltisdlqaddiatyycqlqffgrgsrlhikrtvaapsvfifppsdeq NO: 303
    lksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltlsk
    adyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlvqsgaevvkpgasvkvsckas
    Figure US20190054182A1-20190221-P00055
    ihwvrqapgqglewigs
    Figure US20190054182A1-20190221-P00056
    SEQ ID
    Figure US20190054182A1-20190221-P00057
    nyaqkfqgratltvdtsistaymelsrlrsddtavyyc
    Figure US20190054182A1-20190221-P00058
    NO: 304
    Figure US20190054182A1-20190221-P00059
    wgkgttvlvsssqvqlvesgggvvqpgrslrlscaas
    Figure US20190054182A1-20190221-P00060
    mhw
    vrqapgkqlewvaq
    Figure US20190054182A1-20190221-P00061
    yatyyadsvkgrftisrddskntlylqmmslr
    aedtavyy
    Figure US20190054182A1-20190221-P00062
    wgqgtlvtvssrtastkgpsvfplapcsrstses
    taalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpsssl
    gtktytcnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfppkp
    kdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeqfns
    tyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvctl
    ppsqeemtknqvslscavkgfypsdiavewesngqpennykttppvldsd
    gsfflvskltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Divmtqtplslsvtpgqpasisckss
    Figure US20190054182A1-20190221-P00063
    lswylqkpgqspgsliy
    Figure US20190054182A1-20190221-P00064
    SEQ ID
    nrfsgvpdrfsgsgsgtdftlkisrveaedvgvyyc
    Figure US20190054182A1-20190221-P00065
    ftfgsgtkveikgqpk
    NO: 305
    aapdiqmtqspsslsasvgdrvtitcqas
    Figure US20190054182A1-20190221-P00066
    lnwyqqkpgkapklliykasnl
    htgvpsrfsgsgsgtdftltisslqpediatyyc
    Figure US20190054182A1-20190221-P00067
    fgqgtkleiktkpsrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqd
    skdstyslsstltlskadyekhkvyacevthqglsspvtksfngec
    Binding Protein 32 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgggt SEQ ID
    gtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcaggcc NO: 306
    cctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtgaactt
    cggcggaggcttccgggatagaatgaccctgacccaggacgtgtaccgcgagatcgcc
    tacatggacatccggggcctgaagcccgatgacaccgccatgtactactgcgccagaga
    cagaagctacggcgacagcagctgggctctggatgcttggggccagggcacaaccgtg
    gtggtgtctgccgcctctacaaagggcccctcggtgaccctctggccccttgcagcagaa
    gcaccagcgaatctacagccgccctgggctgcctcgtgaaggactacatcccgagcccg
    tgaccgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgct
    ccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgg
    gcaccaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaa
    gcgggtggaatctaagtacggccctccctgccctccttgcccagcccctgaatactgggc
    ggaccctccgtgttcctgttccccccaaagcccaaggacaccctgatgatcagccggacc
    cccgaagtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaat
    tggtacgtggacggcgtggaagtgcacaacgccaagaccaagcccagagaggaacagt
    tcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacg
    gcaaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaacc
    atcagcaaggccaagggccagccccgcgagcctcaagtgtataccagcccccttgcca
    ggaagagatgaccaagaaccaggtgtccagtagtgtacgtgaaaggcactaccccag
    cgacattaccgtggaatgggagagcaacggccagcccgagaacaactacaagaccacc
    ccccctgtgctggacagcgacggctcattcttcctgtactccaagctgaccgtggacaaga
    gccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaac
    cactacacccagaagtccctgtctctgtccctgggcaag
    Light chain A Tacatccacgtgacccaaagccccaacaacctgtccatgtccatcggcaacagaatgac SEQ ID
    catcaactgccagacctctcagggcgtgggcagcgacctgcactggtatcagcacaagc NO: 307
    ctggcagagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgtgcc
    cagcagattttccggcagcggcttccacaccagcttcaacctgaccatcagcgatctgcag
    gccgacgacattgccacctactattgtcaggtgctgcagttcttcggcagagcagcagac
    tgcacatcaagcgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagc
    agctgaagtccggcacagcctctgtcgtgtgcctgctgattcaacttctacccccgcgagg
    ccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcg
    tgaccgagcaggacagcaaggactccacctacagcctgagcagcaccctgacactgag
    caaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcag
    tctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 308
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagaccagggcagagccaccctgaccgtgaacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagaggtggaataggcggcggagtggtgcagcaggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccaggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctatacctgcagatgaacagcctacgggccgaggacaccacca
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgactgacaagcggcgtgcaca
    cctttccagccatgaccagagcagcagcctgtactactgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctataacatggaccacaaacccaacaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcagccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggctgtggaagtgcacaacgccaagaccaagcc
    cagagaagaacagttcaacagcacctaccaggtgatgtccatgctgaccatgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaggtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgaggacagcgacggctcattcttcctggtgtccaa
    gctgaccgtggacaagagccagtgacaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtactgtccctgggcaag
    Light chain B gacatcgtgatgacccagacccccctgagcctaagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtacacaacaacaccaacacctacctgagct NO: 309
    ggtatctgcagaagcccggccagagcccccagtccctgatctacaaggtgtccaacagat
    tcagcggcgtgcccgacagatctccggcagcggctctggcaccgacttcaccctgaag
    atcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagta
    ccccttcacctttggcagcggcaccaaggtggaaatcaagggccagcccaaggccgcc
    cccgacatccagatgacccagagccccagcagcagtctgccagcgtgggcgacagag
    tgaccatcacctgtcaggccagccagaacatctacgtgtggctgaactggtatcagcaga
    agcccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgt
    gcccagcagattttctgacaacggctccgacaccgacttcaccctgacaatcagctccctg
    cagcccgaggacattgccacctactactgccagcagaaccagacctacccctacaccttt
    ggccagggcaccaagaggaaatcaagaccaagggccccagccgtacggtggccgct
    cccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggcacagcctagtc
    gtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtggaaggtggacaa
    cgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacagcaaggactc
    cacctacagcctgagcagcaccctgacactgagcaaggccgactacgagaagcacaag
    gtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaac
    cggggcgagtgt
    Binding Protein 33 Amino Acid Sequences
    Heavy chain A Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikpqyga SEQ ID
    vnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdsswaldawgqg NO: 310
    ttvvvsaastkgpsvfplapsskstsggtaalgclvkdyfpepvtvswnsgaltsgvhtfp
    avlqssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpape
    flggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktk
    preeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqv
    ytlppcqeemtknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsff
    lyskltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgvp SEQ ID
    srfsgsgfhtsfnltisdlqaddiatyycqlqffgrgsrlhikrtvaapsvfifppsdeqlks NO: 311
    gtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltlskadye
    khkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlqesgpglvkpsqtlsltctvsgfslsdygvhwvrqppgkglewlgviwa SEQ ID
    gggtnynpslksrktiskdtsknqvslklssvtaadtavyycardkgysyyysm NO: 312
    dywgqgttvtvsssqvqlvesgggvvqpgrslrlscaasgftftkawmhwvrq
    apgkqlewvaqikdksnsyatyyadsvkgrftisrddskntlylqmmslraedt
    avyycrgvyyalspfdywgqgtlvtvssrtastkgpsvfplapcsrstsestaalg
    clvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtktyt
    cnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfppkpkdtlmis
    rtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeqfnstyrvvsvlt
    vlhqdwlngkeykckvsnkglpssiektiskakgqprepqvctlppsqeemt
    knqvslscavkgfypsdiavewesngqpennykttppvldsdgsfflvskltv
    dksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Divmtqtplslsvtpgqpasisckssqslvhnnantylswylqkpgqspgsliykvsnr SEQ ID
    fsgvpdrfsgsgsgtdftlkisrveaedvgvyycgqgtqypftfgsgtkveikgqpkaa NO: 313
    pdivltqspaslavspgqratitcrasesveyyvtslmqwyqqkpgqppkllifaasnv
    esgvparfsgsgsgtdftltinpveandvanyycqqsrkvpytfgqgtkleiktkgpsrt
    vaapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqd
    skdstyslsstltlskadyekhkvyacevthqglsspvtksfngec
    Binding Protein 33 Nucleotide Sequences
    Heavy chain A agagcccacctggtgcagtctggcaccgccatgaagaaaccaggcgcctctgtgcgggt SEQ ID
    gtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcaggcc NO: 314
    cctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtgaactt
    cggcggaggcttccgggatagaatgaccctgacccaggacgtgtaccgcgagatcgcc
    tacatggacatccggggcctgaagcccgatgacaccgccatgtactactgcgccagaga
    cagaagctacggcgacagcagctgggctctggatgcttggggccagggcacaaccgtg
    gtggtgtctgccgcctctacaaagggcccctcggtgaccctctggccccttgcagcagaa
    gcaccagcgaatctacagccgccctgggctgcctcgtgaaggactacatcccgagcccg
    tgaccgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgct
    ccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgg
    gcaccaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaa
    gcgggtggaatctaagtacggccctccctgccctccttgcccagcccctgaatactgggc
    ggaccctccgtgttcctgttccccccaaagcccaaggacaccctgatgatcagccggacc
    cccgaagtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaat
    tggtacgtggacggcgtggaagtgcacaacgccaagaccaagcccagagaggaacagt
    tcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacg
    gcaaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaacc
    atcagcaaggccaagggccagccccgcgagcctcaagtgtataccagcccccttgcca
    ggaagagatgaccaagaaccaggtgtccagtagtgtacgtgaaaggcactaccccag
    cgacattaccgtggaatgggagagcaacggccagcccgagaacaactacaagaccacc
    ccccctgtgctggacagcgacggctcattcttcctgtactccaagctgaccgtggacaaga
    gccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaac
    cactacacccagaagtccctgtctctgtccctgggcaag
    Light chain A Tacatccacgtgacccaaagccccaacaacctgtccatgtccatcggcaacagaatgac SEQ ID
    catcaactgccagacctctcagggcgtgggcagcgacctgcactggtatcagcacaagc NO: 315
    ctggcagagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgtgcc
    cagcagattttccggcagcggcttccacaccagcttcaacctgaccatcagcgatctgcag
    gccgacgacattgccacctactattgtcaggtgctgcagttcttcggcagagcagcagac
    tgcacatcaagcgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagc
    agctgaagtccggcacagcctctgtcgtgtgcctgctgattcaacttctacccccgcgagg
    ccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaagcg
    tgaccgagcaggacagcaaggactccacctacagcctgagcagcaccctgacactgag
    caaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcag
    tctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B caggtgcagctgcaggaatctggccctggcctcgtgaagcctagccagaccctgagcct SEQ ID
    gacctgtaccgtgtccggcttcagcctgagcgactacggcgtgcactgggtgcgccagc NO: 316
    cacctggaaaaggcctggaatggctgggcgtgatctgggctggcggaggcaccaacta
    caaccccagcctgaagtccagaaagaccatcagcaaggacaccagcaagaaccaggtg
    tccctgaagctgagcagcgtgacagccgccgataccgccgtgtactactgcgccagaga
    caagggctacagctactactacagcatggactactggggccagggcaccaccgtgaccg
    tgtcatcctctcaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgcttcgaccaagggcccatcggtgttccctctggcc
    ccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggacta
    ctttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcacac
    ctttccagccatgctccagagcagcagcctgtactctctgagcaacgtcgtaacagtgccc
    agcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaaca
    ccaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagccc
    ctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctgat
    gatcagccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatcccg
    aggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagccc
    agagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacca
    ggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccagc
    tccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgtac
    cctgccccctagccaggaagagatgaccaagaaccaggtgtccctgagctgtgccgtga
    aaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgagaa
    caactacaagaccaccccccctgtgctggacagcgacggctcattcttcctggtgtccaag
    ctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgca
    cgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B gacatcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtgcacaacaacgccaacacctacctgagct NO: 317
    ggtatctgcagaagcccggccagagcccccagtccctgatctacaaggtgtccaacagat
    tcagcggcgtgcccgacagattctccggcagcggctctggcaccgacttcaccctgaag
    atcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagta
    ccccttcacctttggcagcggcaccaaggtggaaatcaagggccagcccaaggccgcc
    cccgacatcgtgctgacacagagccctgctagcctggccgtgtctcctggacagagggc
    caccatcacctgtagagccagcgagagcgtggaatattacgtgaccagcctgatgcagtg
    gtatcagcagaagcccggccagccccccaagctgctgattttcgccgccagcaacgtgg
    aaagcggcgtgccagccagattttccggcagcggctctggcaccgacttcaccctgacca
    tcaaccccgtggaagccaacgacgtggccaactactactgccagcagagccggaaggt
    gccctacacctttggccagggcaccaagctggaaatcaagaccaagggccccagccgta
    cggtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggca
    cagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtgga
    aggtggacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggac
    agcaaggactccacctacagcctgagcagcaccctgacactgagcaaggccgactacg
    agaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgacc
    aagagcttcaaccggggcgagtgt
    Binding Protein 34 Amino Acid Sequences
    Heavy chain A Qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmgwisheg SEQ ID
    dkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddga NO: 318
    lnwavdvdylsnlefwgqgtavtvssastkgpsvfplapcsrstsestaalgclvkdyfp
    epvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtktytcnvdhkpsntkv
    dkrveskygppcppcpapeflggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpe
    vqfnwyvdgvevhnaktkpreeqfnstyrvvsvltvlhqdwlngkeykckvsnkgl
    pssiektiskakgqprepqvytlppcqeemtknqvslwclvkgfypsdiavewesng
    qpennykttppvldsdgsfflyskltvdksrwqegnvfscsvmhealhnhytqkslsls
    lgk
    Light chain A Dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassras SEQ ID
    gvpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikrtvaapsv NO: 319
    fifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstys
    lsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlvqsgaevvkpgasvkvsckas
    Figure US20190054182A1-20190221-P00068
    ihwvrqapgqglewigs
    Figure US20190054182A1-20190221-P00069
    SEQ ID
    Figure US20190054182A1-20190221-P00070
    nyaqkfqgratltvdtsistaymelsrlrsddtavyyc
    Figure US20190054182A1-20190221-P00071
    NO: 320
    Figure US20190054182A1-20190221-P00072
    wgkgttvlvsssqvqlvesgggvvqpgrslrlscaas
    Figure US20190054182A1-20190221-P00073
    mhwvrq
    apgkqlewvaq
    Figure US20190054182A1-20190221-P00074
    yatyyadsvkgrftisrddskntlylqmmslraedt
    avyyc
    Figure US20190054182A1-20190221-P00075
    wgqgtlvtvssrtastkgpsvfplapcsrstsestaalg
    clvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtktyt
    cnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfppkpkdtlmis
    rtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeqfnstyrvvsvlt
    vlhqdwlngkeykckvsnkglpssiektiskakgqprepqvctlppsqeemt
    knqvslscavkgfypsdiavewesngqpennykttppvldsdgsfflvskltv
    dksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Divmtqtplslsvtpgqpasisckss
    Figure US20190054182A1-20190221-P00076
    lswylqkpgqspgsliykvsnr
    SEQ ID
    fsgvpdrfsgsgsgtdftlkisrveaedvgvyyc
    Figure US20190054182A1-20190221-P00077
    ftfgsgtkveikgqpkaap
    NO: 321
    diqmtqspsslsasvgdrvtitcqasq
    Figure US20190054182A1-20190221-P00078
    lnwyqqkpgkapklliy
    Figure US20190054182A1-20190221-P00079
    nlhtgv
    psrfsgsgsgtdftltisslqpediatyyc
    Figure US20190054182A1-20190221-P00080
    fgqgtkleiktkpsrtvaapsvf
    ifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysl
    sstltlskadyekhkvyacevthqglsspvtksfngec
    Binding Protein 34 Nucleotide Sequences
    Heavy chain A caggtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaagg SEQ ID
    tgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcgcagc NO: 322
    gtgccaggacagggactgcagtggatgggctggatcagccacgagggcgacaagaaa
    gtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacagaagcaccaacac
    cgcctacctgcagctgagcggcctgacctctggcgataccgccgtgtactactgcgccaa
    gggcagcaagcaccggctgagagactacgccctgtacgacgatgacggcgccctgaac
    tgggccgtggatgtggactacctgagcaacctggaattctggggccagggcacagccgt
    gaccgtgtcatctgcttcgaccaagggcccctcggtgttccctctgaccccttgcagcaga
    agcaccagcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagccc
    gtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtg
    ctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcct
    gggcaccaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggac
    aagcgggtggaatctaagtacggccctccctgccctccttgcccagcccctgaatttctgg
    gcggaccctccgtgttcctgttccccccaaagcccaaggacaccctgatgatcagccgga
    cccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttca
    attggtacgtggacggcgtggaagtgcacaacgccaagaccaagcccagagaggaaca
    gttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaa
    cggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaa
    accatcagcaaggccaagggccagccccgcgagcctcaagtgtataccctgcccccttg
    ccaggaagagatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccc
    cagcgacattgccgtggaatgggagagcaacggccagcccgagaacaactacaagacc
    accccccctgtgctggacagcgacggctcattcttcctgtactccaagctgaccgtggaca
    agagccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcac
    aaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain A gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgccag SEQ ID
    catcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctggctt NO: 323
    ggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagcagcaga
    gccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttcaccctgaa
    gatcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagggcagagag
    agcccctggacctttggccagggcaccaaggtggacatcaagcgtacggtggccgctcc
    cagcgtgttcatcttcccacctagcgacgagcagctgaagtccggcacagcctctgtcgtg
    tgcctgctgaacaacttctacccccgcgaggccaaagtgcagtggaaggtggacaacgc
    cctgcagagcggcaacagccaggaaagcgtgaccgagcaggacagcaaggactccac
    ctacagcctgagcagcaccctgacactgagcaaggccgactacgagaagcacaaggtg
    tacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccg
    gggcgagtgt
    Heavy chain B caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 324
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B gacatcgtgatgacccagacccccctgagcctaagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtacacaacaacaccaacacctacctgagct NO: 325
    ggtatctgcagaagcccggccagagcccccagtccctgatctacaaggtgtccaacagat
    tcagcggcgtgcccgacagatctccggcagcggctctggcaccgacttcaccctgaag
    atcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagta
    ccccttcacctttggcagcggcaccaaggtggaaatcaagggccagcccaaggccgcc
    cccgacatccagatgacccagagccccagcagcagtctgccagcgtgggcgacagag
    tgaccatcacctgtcaggccagccagaacatctacgtgtggctgaactggtatcagcaga
    agcccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgt
    gcccagcagattttctgacaacggctccgacaccgacttcaccctgacaatcagctccctg
    cagcccgaggacattgccacctactactgccagcagaaccagacctacccctacaccttt
    ggccagggcaccaagaggaaatcaagaccaagggccccagccgtacggtggccgct
    cccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggcacagcctagtc
    gtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtggaaggtggacaa
    cgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacagcaaggactc
    cacctacagcctgagcagcaccctgacactgagcaaggccgactacgagaagcacaag
    gtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaac
    cggggcgagtgt
    Binding Protein 35 Amino Acid Sequences
    Heavy chain A Qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmgwisheg SEQ ID
    dkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgskhrlrdyalydddga NO: 326
    lnwavdvdylsnlefwgqgtavtvssastkgpsvfplapcsrstsestaalgclvkdyfp
    epvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtktytcnvdhkpsntkv
    dkrveskygppcppcpapeflggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpe
    vqfnwyvdgvevhnaktkpreeqfnstyrvvsvltvlhqdwlngkeykckvsnkgl
    pssiektiskakgqprepqvytlppcqeemtknqvslwclvkgfypsdiavewesng
    qpennykttppvldsdgsfflyskltvdksrwqegnvfscsvmhealhnhytqkslsls
    lgk
    Light chain A Dfvltqsphslsvtpgesasiscksshslihgdrnnylawyvqkpgrspqlliylassras SEQ ID
    gvpdrfsgsgsdkdftlkisrvetedvgtyycmqgrespwtfgqgtkvdikrtvaapsv NO: 327
    fifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstys
    lsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlqesgpglvkpsqtlsltctvsgfslsdygvhwvrqppgkglewlgviwa SEQ ID
    gggtnynpslksrktiskdtsknqvslklssvtaadtavyycardkgysyyysm NO: 328
    dywgqgttvtvsssqvqlvesgggvvqpgrslrlscaasgftftkawmhwvrq
    apgkqlewvaqikdksnsyatyyadsvkgrftisrddskntlylqmmslraedt
    avyycrgvyyalspfdywgqgtlvtvssrtastkgpsvfplapcsrstsestaalg
    clvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtktyt
    cnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfppkpkdtlmis
    rtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeqfnstyrvvsvlt
    vlhqdwlngkeykckvsnkglpssiektiskakgqprepqvctlppsqeemt
    knqvslscavkgfypsdiavewesngqpennykttppvldsdgsfflvskltv
    dksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Divmtqtplslsvtpgqpasisckssqslvhnnantylswylqkpgqspgsliykvsnr SEQ ID
    fsgvpdrfsgsgsgtdftlkisrveaedvgvyycgqgtqypftfgsgtkveikgqpkaa NO: 329
    pdivltqspaslavspgqratitcrasesveyyvtslmqwyqqkpgqppkllifaasnv
    esgvparfsgsgsgtdftltinpveandvanyycqqsrkvpytfgqgtkleiktkgpsrt
    vaapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqd
    skdstyslsstltlskadyekhkvyacevthqglsspvtksfngec
    Binding Protein 35 Nucleotide Sequences
    Heavy chain A caggtgcacctgacacagagcggacccgaagtgcggaagcctggcacctctgtgaagg SEQ ID
    tgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcactgggtgcgcagc NO: 330
    gtgccaggacagggactgcagtggatgggctggatcagccacgagggcgacaagaaa
    gtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacagaagcaccaacac
    cgcctacctgcagctgagcggcctgacctctggcgataccgccgtgtactactgcgccaa
    gggcagcaagcaccggctgagagactacgccctgtacgacgatgacggcgccctgaac
    tgggccgtggatgtggactacctgagcaacctggaattctggggccagggcacagccgt
    gaccgtgtcatctgcttcgaccaagggcccctcggtgttccctctgaccccttgcagcaga
    agcaccagcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagccc
    gtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtg
    ctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcct
    gggcaccaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggac
    aagcgggtggaatctaagtacggccctccctgccctccttgcccagcccctgaatttctgg
    gcggaccctccgtgttcctgttccccccaaagcccaaggacaccctgatgatcagccgga
    cccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttca
    attggtacgtggacggcgtggaagtgcacaacgccaagaccaagcccagagaggaaca
    gttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaa
    cggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaa
    accatcagcaaggccaagggccagccccgcgagcctcaagtgtataccctgcccccttg
    ccaggaagagatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccc
    cagcgacattgccgtggaatgggagagcaacggccagcccgagaacaactacaagacc
    accccccctgtgctggacagcgacggctcattcttcctgtactccaagctgaccgtggaca
    agagccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcac
    aaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain A gacttcgtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgccag SEQ ID
    catcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctggctt NO: 331
    ggtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagcagcaga
    gccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttcaccctgaa
    gatcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagggcagagag
    agcccctggacctttggccagggcaccaaggtggacatcaagcgtacggtggccgctcc
    cagcgtgttcatcttcccacctagcgacgagcagctgaagtccggcacagcctctgtcgtg
    tgcctgctgaacaacttctacccccgcgaggccaaagtgcagtggaaggtggacaacgc
    cctgcagagcggcaacagccaggaaagcgtgaccgagcaggacagcaaggactccac
    ctacagcctgagcagcaccctgacactgagcaaggccgactacgagaagcacaaggtg
    tacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccg
    gggcgagtgt
    Heavy chain B caggtgcagctgcaggaatctggccctggcctcgtgaagcctagccagaccctgagcct SEQ ID
    gacctgtaccgtgtccggcttcagcctgagcgactacggcgtgcactgggtgcgccagc NO: 332
    cacctggaaaaggcctggaatggctgggcgtgatctgggctggcggaggcaccaacta
    caaccccagcctgaagtccagaaagaccatcagcaaggacaccagcaagaaccaggtg
    tccctgaagctgagcagcgtgacagccgccgataccgccgtgtactactgcgccagaga
    caagggctacagctactactacagcatggactactggggccagggcaccaccgtgaccg
    tgtcatcctctcaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgcttcgaccaagggcccatcggtgttccctctggcc
    ccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggacta
    ctttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcacac
    ctttccagccatgctccagagcagcagcctgtactctctgagcaacgtcgtaacagtgccc
    agcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaaca
    ccaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagccc
    ctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctgat
    gatcagccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatcccg
    aggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagccc
    agagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacca
    ggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccagc
    tccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgtac
    cctgccccctagccaggaagagatgaccaagaaccaggtgtccctgagctgtgccgtga
    aaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgagaa
    caactacaagaccaccccccctgtgctggacagcgacggctcattcttcctggtgtccaag
    ctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgca
    cgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B gacatcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtgcacaacaacgccaacacctacctgagct NO: 333
    ggtatctgcagaagcccggccagagcccccagtccctgatctacaaggtgtccaacagat
    tcagcggcgtgcccgacagattctccggcagcggctctggcaccgacttcaccctgaag
    atcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagta
    ccccttcacctttggcagcggcaccaaggtggaaatcaagggccagcccaaggccgcc
    cccgacatcgtgctgacacagagccctgctagcctggccgtgtctcctggacagagggc
    caccatcacctgtagagccagcgagagcgtggaatattacgtgaccagcctgatgcagtg
    gtatcagcagaagcccggccagccccccaagctgctgattttcgccgccagcaacgtgg
    aaagcggcgtgccagccagattttccggcagcggctctggcaccgacttcaccctgacca
    tcaaccccgtggaagccaacgacgtggccaactactactgccagcagagccggaaggt
    gccctacacctttggccagggcaccaagctggaaatcaagaccaagggccccagccgta
    cggtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggca
    cagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtgga
    aggtggacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggac
    agcaaggactccacctacagcctgagcagcaccctgacactgagcaaggccgactacg
    agaagcacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgacc
    aagagcttcaaccggggcgagtgt
    Binding Protein 36 Amino Acid Sequences
    Heavy chain A Qvqlvqsggqmkkpgesmriscrasgyefidctlnwirlapgkrpewmgwlkprg SEQ ID
    gavnyarplqgrvtmtrdvysdtaflelrsltvddtavyftrgkncdynwdfehwgrg NO: 334
    tpvivssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfp
    avlqssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpape
    flggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktk
    preeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqv
    ytlppcqeemtknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsff
    lyskltvdksrwqegnvfscsvmheallnhytqkslslslgk
    Light chain A Eivltqspgtlslspgetaiiscrtsqygslawyqqrpgqaprlviysgstraagipdrfsg SEQ ID
    srwgpdynltisnlesgdfgvyycqqyeffgqgtkvqvdikrtvaapsvfifppsdeql NO: 335
    ksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltlskad
    yekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlvqsgaevvkpgasvkvsckas
    Figure US20190054182A1-20190221-P00081
    ihwvrqapgqglewigs
    Figure US20190054182A1-20190221-P00082
    SEQ ID
    Figure US20190054182A1-20190221-P00083
    nyaqkfqgratltvdtsistaymelsrlrsddtavyyc
    Figure US20190054182A1-20190221-P00084
    NO: 336
    Figure US20190054182A1-20190221-P00085
    wgkgttvlvsssqvqlvesgggvvqpgrslrlscaas
    Figure US20190054182A1-20190221-P00086
    mhwvrq
    apgkqlewvaq
    Figure US20190054182A1-20190221-P00087
    yatyyadsvkgrftisrddskntlylqmmslraedt
    avyyc
    Figure US20190054182A1-20190221-P00088
    wgqgtlvtvssrtastkgpsvfplapcsrstsestaalg
    clvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtktyt
    cnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfppkpkdtlmis
    rtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeqfnstyrvvsvlt
    vlhqdwlngkeykckvsnkglpssiektiskakgqprepqvctlppsqeemt
    knqvslscavkgfypsdiavewesngqpennykttppvldsdgsfflvskltv
    dksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Divmtqtplslsvtpgqpasisckss
    Figure US20190054182A1-20190221-P00089
    lswylqkpgqspgsliykvsnr
    SEQ ID
    fsgvpdrfsgsgsgtdftlkisrveaedvgvyyc
    Figure US20190054182A1-20190221-P00090
    ftfgsgtkveikgqpkaap
    NO: 337
    diqmtqspsslsasvgdrvtitcqas
    Figure US20190054182A1-20190221-P00091
    lnwyqqkpgkapklliykasnlhtgv
    psrfsgsgsgtdftltisslqpediatyyc
    Figure US20190054182A1-20190221-P00092
    gqgtkleiktkpsrtvaapsvf
    ifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstysl
    sstltlskadyekhkvyacevthqglsspvtksfngec
    Binding Protein 36 Nucleotide Sequences
    Heavy chain A caggtacagctggtgcagtctggcggccagatgaagaaacccggcgagagcatgcgga SEQ ID
    tcagctgcagagccagcggctacgagttcatcgactgcaccctgaactggatcagactgg NO: 338
    cccctggcaagcggcctgagtggatgggatggctgaagcctagaggcggagccgtgaa
    ctacgccagacctctgcagggcagagtgaccatgacccgggacgtgtacagcgataccg
    ccttcctggaactgcggagcctgaccgtggatgataccgccgtgtacttctgcacccggg
    gcaagaactgcgactacaactgggacttcgagcactggggcagaggcacccctgtgatc
    gtgtcaagcgcgtcgaccaagagcccctcggtgttccctctggccccttgcagcagaagc
    accagcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtg
    accgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctcc
    agagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggc
    accaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagc
    gggtggaatctaagtacggccctccctgccctccttgcccagcccctgaatttagggcgg
    accctccgtgttcctgttccccccaaagcccaaggacaccctgatgatcagccggacccc
    cgaagtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaattg
    gtacgtggacggcgtggaagtgcacaacgccaagaccaagcccagagaggaacagttc
    aacagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacgg
    caaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaacca
    tcagcaaggccaagggccagccccgcgagcctcaagtgtgtaccctgcccccttgccag
    gaagagatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccccagc
    gacattgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccc
    cccctgtgctggacagcgacggctcattcttcctgtactccaagctgaccgtggacaagag
    ccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaacc
    actacacccagaagtccctgtctctgtccctgggcaag
    Light chain A Gagatcgtgctgacacagagccctggcaccctgagcctgtctccaggcgagacagccat SEQ ID
    catcagctgccggacaagccagtacggcagcctggcctggtatcagcagaggcctgga NO: 339
    caggcccccagactcgtgatctacagcggcagcacaagagccgccggaatccccgata
    gattcagcggctccagatggggccctgactacaacctgaccatcagcaacctggaaagc
    ggcgacttcggcatgtactactgccagcagtacgagttcttcggccagggcaccaaggtg
    caggtggacatcaagcgtacggtggccgctcccagcgtgttcatcttcccacctagcgac
    gagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctacccccgc
    gaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagccaggaa
    agcgtgaccgagcaggacagcaaggactccacctacagcctgagcagcaccctgacac
    tgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccaggg
    cctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 340
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B gacatcgtgatgacccagacccccctgagcctaagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtacacaacaacaccaacacctacctgagct NO: 341
    ggtatctgcagaagcccggccagagcccccagtccctgatctacaaggtgtccaacagat
    tcagcggcgtgcccgacagatctccggcagcggctctggcaccgacttcaccctgaag
    atcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagta
    ccccttcacctttggcagcggcaccaaggtggaaatcaagggccagcccaaggccgcc
    cccgacatccagatgacccagagccccagcagcagtctgccagcgtgggcgacagag
    tgaccatcacctgtcaggccagccagaacatctacgtgtggctgaactggtatcagcaga
    agcccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgt
    gcccagcagattttctgacaacggctccgacaccgacttcaccctgacaatcagctccctg
    cagcccgaggacattgccacctactactgccagcagaaccagacctacccctacaccttt
    ggccagggcaccaagaggaaatcaagaccaagggccccagccgtacggtggccgct
    cccagcgtgttcatcttcccacctagcgacgagcagctgaagtccggcacagcctagtc
    gtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtggaaggtggacaa
    cgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacagcaaggactc
    cacctacagcctgagcagcaccctgacactgagcaaggccgactacgagaagcacaag
    gtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaac
    cggggcgagtgt
    Binding Protein 37 Amino Acid Sequences
    Heavy chain A Qvqlvqsggqmkkpgesmriscrasgyefidctlnwirlapgkrpewmgwlkprg SEQ ID
    gavnyarplqgrvtmtrdvysdtaflelrsltvddtavyftrgkncdynwdfehwgrg NO: 342
    tpvivssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfp
    avlqssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpape
    flggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktk
    preeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqv
    ytlppcqeemtknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsff
    lyskltvdksrwqegnvfscsvmheallnhytqkslslslgk
    Light chain A Eivltqspgtlslspgetaiiscrtsqygslawyqqrpgqaprlviysgstraagipdrfsg SEQ ID
    srwgpdynltisnlesgdfgvyycqqyeffgqgtkvqvdikrtvaapsvfifppsdeql NO: 343
    ksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltlskad
    yekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlqesgpglvkpsqtlsltctvsgfslsdygvhwvrqppgkglewlgviwa SEQ ID
    gggtnynpslksrktiskdtsknqvslklssvtaadtavyycardkgysyyysm NO: 344
    dywgqgttvtvsssqvqlvesgggvvqpgrslrlscaasgftftkawmhwvrq
    apgkqlewvaqikdksnsyatyyadsvkgrftisrddskntlylqmmslraedt
    avyycrgvyyalspfdywgqgtlvtvssrtastkgpsvfplapcsrstsestaalg
    clvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtktyt
    cnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfppkpkdtlmis
    rtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeqfnstyrvvsvlt
    vlhqdwlngkeykckvsnkglpssiektiskakgqprepqvctlppsqeemt
    knqvslscavkgfypsdiavewesngqpennykttppvldsdgsfflvskltv
    dksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Divmtqtplslsvtpgqpasisckssqslvhnnantylswylqkpgqspgsliykvsnr SEQ ID
    fsgvpdrfsgsgsgtdftlkisrveaedvgvyycgqgtqypftfgsgtkveikgqpkaa NO: 345
    pdivltqspaslavspgqratitcrasesveyyvtslmqwyqqkpgqppkllifaasnv
    esgvparfsgsgsgtdftltinpveandvanyycqqsrkvpytfgqgtkleiktkgpsrt
    vaapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqd
    skdstyslsstltlskadyekhkvyacevthqglsspvtksfngec
    Binding Protein 37 Nucleotide Sequences
    Heavy chain A caggtacagctggtgcagtctggcggccagatgaagaaacccggcgagagcatgcgga SEQ ID
    tcagctgcagagccagcggctacgagttcatcgactgcaccctgaactggatcagactgg NO: 346
    cccctggcaagcggcctgagtggatgggatggctgaagcctagaggcggagccgtgaa
    ctacgccagacctctgcagggcagagtgaccatgacccgggacgtgtacagcgataccg
    ccttcctggaactgcggagcctgaccgtggatgataccgccgtgtacttctgcacccggg
    gcaagaactgcgactacaactgggacttcgagcactggggcagaggcacccctgtgatc
    gtgtcaagcgcgtcgaccaagagcccctcggtgttccctctggccccttgcagcagaagc
    accagcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtg
    accgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctcc
    agagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggc
    accaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagc
    gggtggaatctaagtacggccctccctgccctccttgcccagcccctgaatttagggcgg
    accctccgtgttcctgttccccccaaagcccaaggacaccctgatgatcagccggacccc
    cgaagtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaattg
    gtacgtggacggcgtggaagtgcacaacgccaagaccaagcccagagaggaacagttc
    aacagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacgg
    caaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaacca
    tcagcaaggccaagggccagccccgcgagcctcaagtgtgtaccctgcccccttgccag
    gaagagatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccccagc
    gacattgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccc
    cccctgtgctggacagcgacggctcattcttcctgtactccaagctgaccgtggacaagag
    ccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaacc
    actacacccagaagtccctgtctctgtccctgggcaag
    Light chain A Gagatcgtgctgacacagagccctggcaccctgagcctgtctccaggcgagacagccat SEQ ID
    catcagctgccggacaagccagtacggcagcctggcctggtatcagcagaggcctggac NO: 347
    aggcccccagactcgtgatctacagcggcagcacaagagccgccggaatccccgatag
    attcagcggctccagatggggccctgactacaacctgaccatcagcaacctggaaagcg
    gcgacttcggcgtgtactactgccagcagtacgagttcttcggccagggcaccaaggtgc
    aggtggacatcaagcgtacggtggccgctcccagcgtgttcatcttcccacctagcgacg
    agcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttctacccccgcga
    ggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagccaggaaag
    cgtgaccgagcaggacagcaaggactccacctacagcctgagcagcaccctgacactg
    agcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcc
    tgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B caggtgcagagcagaatctggccctggcctcgtgaagcctaccagaccctgagcct SEQ ID
    gacctgtaccgtgtccggcttcagcctgagcgactacggcgtgcactgggtgcgccagcc NO: 348
    acctggaaaaggcctggaatggctgggcgtgatctgggctggcggaggcaccaactaca
    accccagcctgaagtccagaaagaccatcagcaaggacaccagcaagaaccaggtgtc
    cctgaagctgagcagcgtgacagccgccgataccgccgtgtactactgcgccagagaca
    agggctacagctactactacagcatgaactactggagccaggacaccaccgtgaccgtg
    tcatcctctcaggtgcagctggtagaatctggcggcggagtggtgcagcctggcagaagc
    ctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctagatacactaggtg
    cgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaac
    agctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggacg
    acagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccgt
    gtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaacc
    ctcgtgaccgtatctaatcagaccgcttcgaccaagagcccatcagtgttccctaggccc
    cttgcagcagaagcaccagcgaatctacagccaccctgaactgcctcatgaaggactact
    ttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcacacctt
    tccagccgtgctccagagcagcggcctgtactctagagcagcgtcgtgacagtgcccag
    cagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaacacc
    aaggtggacaagcgggtggaatctaagtacggccaccctgccaccttgcccagcccct
    gaatttctgagcggaccctccgtgttcctgttccccccaaaacccaaggacaccctgatga
    tcagccggacccccgaagtgacctgcgtggtaatggatgtgtcccaggaagatcccgag
    gtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcccag
    agaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcaccagg
    actggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccagacc
    atcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgtaccct
    gccccctagccaggaagagatgaccaagaaccaggtgtccctgagagtgccgtgaaag
    gcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgagaacaa
    ctacaagaccaccccccctgtgctggacagcgacggctcattcttcctggtgtccaagctg
    accgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacga
    ggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B gacatcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtgcacaacaacgccaacacctacctgagct NO: 349
    ggtatctgcagaagcccggccagagcccccagtccctgatctacaaggtgtccaacagat
    tcagcggcgtgcccgacagattaccggcagcggctaggcaccgacttcaccagaaga
    tcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtac
    cccttcaccatggcagcggcaccaaggtagaaatcaagggccagcccaaggccgcccc
    cgacatcgtgctgacacagagccctgctagcctggccgtgtctcctggacagagggcca
    ccatcacctgtagagccagcgagagcgtggaatattacgtgaccagcctgatgcagtggt
    atcagcagaagcccggccagccccccaagctgctgaattcgccgccagcaacgtggaa
    agcggcgtgccagccagattttccggcagcggctctggcaccgacttcaccctgaccatc
    aaccccgtggaagccaacgacgtggccaactactactgccagcagagccggaagatgc
    cctacacctttggccagggcaccaagctggaaatcaagaccaagggccccagccgtacg
    gtggccgctcccagcgtgacatcttcccacctagcgacgagcagctgaagtccggcaca
    gcctctgtcgtgtgcctgctgaacaacttctacceccgcgaggccaaagtgcagtggaag
    gtggacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacagc
    aaggactccacctacagcctgagcagcaccctgacactgagcaaggccgactacgaga
    agcacaaggtgtacgcctgcgaagtgacccaccagggcctatctagccccgtgaccaag
    agcttcaaccggggcgagtgt
    Binding Protein 38 Amino Acid Sequences
    Heavy chain A Qvqlvqsgaevvkpgasvkvsckasgytftsyyihwvrqapgqglewigsiypgnv SEQ ID
    ntnyaqkfqgratltvdtsistaymelsrlrsddtavyyctshygldwnfdvwgkgttv NO: 350
    tvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflg
    gpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpre
    eqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvytlp
    pcqeemtkmnqvslwclvkgfypsdiavewesngqpennykttppvldsdgsfflysk
    ltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Diqmtqspsslsasvgdrvtitcqasqniyvwlnwyqqkpgkapklliykasnlhtgv SEQ ID
    psrfsgsgsgtdffitisslqpediatyycqqgqtypytfqqgtkleikrtvaapsvfifpps NO: 351
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikp SEQ ID
    qygavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdssw NO: 352
    aldawgqgttvvvsasqvqlvesgggvvqpgrslrlscaasgftftkawmhw
    vrqapgkqlewvaqikdksnsyatyyadsvkgrftisrddskntlylqmnslra
    edtavyycrgvyyalspfdywgqgtlvtvssrtastkgpsvfplapcsrstsesta
    algclvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvtvpssslgtk
    tytcnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfppkpkdtl
    misrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeqfnstyrvv
    svltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvctlppsqee
    mtknqvslscavkgfypsdiavewesngqpennykttppvldsdgsfflvskl
    tvdkstwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Divimtqtplslsvtpgqpasisckssqslvhnnantylswylqkpgqspqsliykvsnr SEQ ID
    fsgvpdrfsgsgsgtdftlkisrveaedvgvyycgqgtqypftfgsgtkveikgqpkaa NO: 353
    pyilwtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgv
    psrfsgsathtsfnltisdlqaddiatyycqvlqffgrgsrlhiktkgpsrtvaapsvfifpp
    sdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstlt
    lskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 38 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactaggtacgccaggc NO: 354
    ccctggacaggaactggaatgaatcggcagcatctaccccggcaacgtaaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgactactgcacccggt
    cccactacggcaggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtgt
    ctagcgcgtcgaccaagggcccctcggtgaccctctggccccttgcagcagaagcacca
    gcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtgaccg
    tgtccggaactctggcgctctgacaagcagcgtgcacaccatccagccgtgaccagag
    cagcggcctgtactactgagcagcgtcgtgacagtgcccagcagcagcctgggcacca
    agacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcgggt
    ggaatctaagtacggccctccagccctccttgcccagcccagaatactgggcggaccc
    tccgtgttcctgttccccccaaagcccaaggacaccagatgatcagccggacccccgaa
    gtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaattggtacg
    tggacgacgtagaagtgcacaacgccaagaccaaacccagagaggaacagttcaacag
    cacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaag
    agtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccatcagc
    aaggccaagggccagccccgcgagcctcaagtgtataccctgcccccagccaggaaga
    gatgaccaagaaccaggtgtccagtggtgtacgtgaaaggcttctaccccagcgacatt
    gccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccct
    gtgctggacagcgacggctcattatcctatactccaagctgaccgtgaacaagagccggt
    ggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccactac
    acccagaagtccctgtctctgtccctaggcaag
    Light chain A Gacatccagatgacccagagccccagcagcctgtctgccagcgtggacgacagagtga SEQ ID
    ccatcacctgtcaggccagccagaacatctacgtgtggctgaactggtatcagcagaagc NO: 355
    ccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgtgcc
    cagcagattttctggcagcggctccggcaccgacttcaccctgacaatcagctccctgcag
    cccgaggacattgccacctactactgccagcagggccagacctacccctacacctttggc
    cagggcaccaagctggaaatcaagcgtacggtagccactcccaacgtattcatatccca
    cctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttct
    acccccgcgaggccaaggtgcagtggaaggtggacaatgccctgcagagcggcaaca
    gccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctgagcagca
    ccctgaccagagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgac
    ccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B agagcccacctggtgcagtaggcaccgccatgaagaaaccaggcgcctctgtgcgggt SEQ ID
    gtcctgtcagacaagcggctacaccttcaccgcccacatcctgttctggttccggcaggcc NO: 356
    cctggcagaggactggaatgggtgggatggatcaagccccagtatggcgccgtgaactt
    cggcggaggatccgggatagatttgacccttacccgggacgtgtaccgcgagatcgcct
    acatggacatccggggcctgaagcccgatgacaccgccgtgtactactgcgccagagac
    agaagctacggcgacagcaactaggactagatgatgggaccagggcacaaccatgg
    tggtgtctgcctctcaggtgcagctggtggaatctggcggcggagtggtgcagcctggca
    gaagcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcact
    gggtgcgccaggcccctggaaagcagaggaatgggtggcccagatcaaggacaaga
    gcaacagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgg
    gacgacagcaagaacaccctatacctgcagatgaacagcctgcgggccgaggacacca
    ccgtgtactactgtcggggcgtatactatgccctgagcccatcgattactagggccaggg
    aaccctcgtgaccgtgtctagtcggaccgcacgaccaagggcccatcggtgttccctctg
    gccccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaagga
    ctactttcccgagcccgtgaccgtgtcaggaaactggcgctctgacaagcggcgtgcac
    acctttccagccgtgaccagagcagcggcctgtactactgagcagcgtcgtgacagtgc
    ccagcagcagcctggacaccaagacctacacctgtaacgtgaaccacaagcccagcaa
    caccaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagc
    ccctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctg
    atgatcagccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgagaccgtgagcacc
    aggactggctgaacaacaaagagtacaagtgcaaagtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaggtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgaggacagcgacggctcattcttcctggtgtccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgaccgtgatgc
    acgaggccagcacaaccactacacccagaagtccagtactgtccagggcaag
    Light chain B Gacatcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgcca SEQ ID
    gcatcagctgcaagagcagccagagcctggtgcacaacaacgccaacacctacctgag NO: 357
    ctggtatctacagaaacccggccagagcccccagtccagatctacaaggtgtccaacag
    attcagcggcgtgcccgacagattaccggcagcggctaggcaccgacttcaccctgaa
    gatcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagt
    accccttcacctttggcagcggcaccaaggtggaaatcaagggccagcccaaggccgcc
    ccctacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacagagt
    gaccatcaactgccagacctctacagggcgtgggcagcgacctgcactggtatcagcaca
    agcctggcagaacccccaagagagatccaccacacaagcagcatggaagatggcgt
    gcccagcagattttccggcagcggcttccacaccagcttcaacctgaccatcagcgatctg
    caggccgacgacattgccacctactattgtcaggtgctgcagttcttcggcagaggcagca
    gactgcacatcaagaccaagggccccagccgtacggtggccgctcccagcgtgttcatct
    tcccacctagcgacgagcagctgaagtccggcacagcactgtcgtgtgcctgctgaaca
    acttctacccccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcgg
    caacagccaggaaagcgtgaccgagcaggacagcaaggactccacctacagcctgag
    cagcaccctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaa
    gtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 39 Amino Acid Sequences
    Heavy chain A Qvqlvqsgaevvkpgasvkvsckasgytftsyyihwvrqapgqglewigsiypgnv SEQ ID
    ntnyaqkfqgratltvdtsistaymelsrlrsddtavyyctshygldwnfdvwgkgttv NO: 358
    tvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflg
    gpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpre
    eqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvytlp
    pcqeemtkmnqvslwclvkgfypsdiavewesngqpennykttppvldsdgsfflysk
    ltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Diqmtqspsslsasvgdrvtitcqasqniyvwlnwyqqkpgkapklliykasnlhtgv SEQ ID
    psrfsgsgsgtdffitisslqpediatyycqqgqtypytfqqgtkleikrtvaapsvfifpps NO: 359
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikp SEQ ID
    qygavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdssw NO: 360
    aldawgqgttvvvsadkthtqvqlvesgggvvqpgrslrlscaasgftftkaw
    mhwvrqapgkqlewvaqikdksnsyatyyadsvkgrftisrddskntlylqm
    nslraedtavyycrgvyyalspfdywgqgtlvtvssdkthtastkgpsvfplapc
    srstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvt
    vpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfp
    pkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeq
    fnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvc
    tlppsqeemtknqvslscavkgfypsdiavewesngqpennykttppyldsd
    gsfflvskltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Divmtqtplslsvtpgqpasisckssqslvhnnantylswylqkpgqspqsliykvsnr SEQ ID
    fsgvpdrfsgsgsgtdftlkisrveaedvgvyycgqgtqypftfgsgtkveikdkthtyih NO: 361
    vtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgvpsrfs
    gsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikdkthtrtvaapsvfifppsdeql
    ksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltlskad
    yekhkvyacevthqglsspvtksfnrgec
    Binding Protein 39 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactaggtacgccaggc NO: 362
    ccctggacaggaactggaatgaatcggcagcatctaccccggcaacgtaaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgactactgcacccggt
    cccactacggcaggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtgt
    ctagcgcgtcgaccaagggcccctcggtgaccctctggccccttgcagcagaagcacca
    gcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtgaccg
    tgtccggaactctggcgctctgacaagcagcgtgcacaccatccagccgtgaccagag
    cagcggcctgtactactgagcagcgtcgtgacagtgcccagcagcagcctgggcacca
    agacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcgggt
    ggaatctaagtacggccctccagccctccttgcccagcccagaatactgggcggaccc
    tccgtgttcctgttccccccaaagcccaaggacaccagatgatcagccggacccccgaa
    gtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaattggtacg
    tggacgacgtagaagtgcacaacgccaagaccaaacccagagaggaacagttcaacag
    cacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaag
    agtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccatcagc
    aaggccaagggccagccccgcgagcctcaagtgtataccctgcccccagccaggaaga
    gatgaccaagaaccaggtgtccagtggtgtacgtgaaaggcttctaccccagcgacatt
    gccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccct
    gtgctggacagcgacggctcattatcctatactccaagctgaccgtgaacaagagccggt
    ggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccactac
    acccagaagtccctgtctctgtccctaggcaag
    Light chain A gacatccagatgacccagagccccagcagcctgtctgccgcgtgggcgacagagtga SEQ ID
    ccatcacctgtcaggccagccagaacatctacgtatggctgaactggtatcaacagaagc NO: 363
    ccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgtgcc
    cagcagattttctggcagcggctccggcaccgacttcaccctgacaatcagcccctgcag
    cccgaggacattgccacctactactgccagcagggccagacctacccctacacattggc
    cagggcaccaagctggaaatcaagcgtacagtggccgctcccagcgtgttcatcttccca
    cctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacnct
    acccccacgaggccaaggtacaatggaaggtggacaatgccctgcagagcagcaaca
    gccaggaaagcgtaaccgaacaggacagcaaggactccacctacaacctgaacaaca
    ccctgaccctgagcaaggccgactacgagaagcacaagatgtacgcctgcgaagtgac
    ccaccagggcctatctagccccgtgaccaagagatcaaccgggcgagtgt
    Heavy chain B agagcccacctggtgcagtctggcaccgccatgaagaaaccaagcgcctctgtgcgggt SEQ ID
    gtcctgtcagacaagcagctacaccttcaccgcccacatcctgttctggttccggcagacc NO: 364
    cctggcagaggactggaatgagtgggatggatcaagccccagtatggcgccgtgaactt
    cggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgagatcacct
    acatggacatccggggcctgaagcccgatgacaccgccgtggggctactgcgccagagac
    agaagctacggcgacagcagagggctctggatgcttggggccagggcacaaccgtgg
    tggtgtctgccgacaaaacccatacccaagtgcaactaatggaatctagcgacggagtg
    gtgcagcctgacaaaaacctgaaactgaactatgccgccagcgacttcaccttcaccaa
    ggcctggatgcactgggtgcgccaggcccctggaaagcagaggaatgggtggcccag
    atcaaggacaagagcaacagctacgccacctactacgccgacagcgtgaagggccagtt
    caccatcagccgggacgacagcaagaacaccagtacctgcagatgaacagcctgcag
    gccgagaacaccgccgtatactactgtcggggcgtgtactatgccctgaaccccttgatt
    actggggccaaagaaccctcgtaaccgtatctaatgataagacccacaccgcttcgacca
    agggcccatcggtgttccctctgacccatgcagcagaagcaccagcgaatctacagccg
    ccctgggctgcctcgtgaaggactactttcccgagcccgtgaccgtgtcctggaactctgg
    cgctctgacaagcggcgtgcacacctttccagccgtgctccagagcagcgacctgtactc
    tctgagcagcgtcgtgacagtgcccagcagcagcctgagcaccaaaacctacacctgta
    acgtggaccacaagcccagcaacaccaagatggacaagcgggtggaatctaagtacga
    ccctccctgccctccttgcccagcccctgaatactgagcgaaccctccgtgttcctattccc
    cccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtg
    gtggatgtgtcccaggaagatcccgaggtgcagttcaattggtacgtggacggcgtggaa
    gtgcacaacgccaagaccaagcccagagaggaacagttcaacagcacctaccgggtgg
    tgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtgcaag
    gtgtccaacaagggcctgcccagctccatcgagaaaaccatcagcaaggccaagggcc
    agccccgcgagcctcaagtgtgtaccctgccccctagccagaaaaagatgaccaagaac
    caggtgtccctaagctgtgccgtgaaaggcttctaccccagcaacattgccgtaaaatgg
    gagagcaacggccagcccgagaacaactacaagaccaccccccctgtgctggacagcg
    acggctcattcttcctggtgtccaagctgaccgtggacaagagccggtggcaggaaggca
    acgtattcagctgctccgtgatgcacgaggccctgcacaaccactacacccagaagtccc
    tgtctctgtccctagacaag
    Light chain B gacatcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtgcacaacaacgccaacacctacctgagct NO: 365
    ggtatctgcagaagcccggccagaacccccagtccctgatctacaagatgtccaacagat
    tcagcggcgtgcccaacagattctccggcagcggctaggcaccgacttcaccctaaaaa
    tcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtac
    cccttcacctttggcagcggcaccaaggtggaaatcaaggacaaaacccatacctacatc
    cacgtgacccagagccccagcagcctgtccgigtccatcggcgacagagtgaccatcaa
    ctgccagacctctcagagcgtgggcagcgacctgcactagtatcagcacaagcctggca
    gagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgtgcccagcag
    attttccggcaacggcttccacaccagatcaacctgaccatcaacgatctgcaggccgac
    gacattgccacctactattgtcaggtgagcagttatcggcagaggcagcagactacacat
    caaggataagacccatacccgtacggtggccgctcccagcgtgttcatcttcccacctagc
    gacgagcagctgaagtccggcacagcctagtcgtgtgcctgctgaacaacttctaccccc
    gcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagccagg
    aaaacgtgaccgagcaggacaacaaggactccacctacagcctgagcagcaccctaac
    actgaacaaggccgactacgagaagcacaaggtatacgcctgcgaagtaacccaccag
    ggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 40 Amino Acid Sequences
    Heavy chain A Qvqlvqsgaevvkpgasvkvsckasgytftsyyihwvrqapgqglewigsiypgnv SEQ ID
    ntnyaqkfqgratltvdtsistaymelsrlrsddtavyyctshygldwnfdvwgkgttv NO: 366
    tvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflg
    gpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpre
    eqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvytlp
    pcqeemtkmnqvslwclvkgfypsdiavewesngqpennykttppvldsdgsfflysk
    ltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Diqmtqspsslsasvgdrvtitcqasqniyvwlnwyqqkpgkapklliykasnlhtgv SEQ ID
    psrfsgsgsgtdffitisslqpediatyycqqgqtypytfqqgtkleikrtvaapsvfifpps NO: 367
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlvesgggvvqpgrslrlscaasgftftkawmhwvrqapgkqlewvaqi SEQ ID
    kdksnsyatyyadsvkgrftisrddskntlylqmnslraedtavvycrgvyyal NO: 368
    spfdywgqgtlvtvsssrahlvqsgtamkkpgasvrvscqtsgytftahilfwfr
    qapgrglewvgwikpqygavnfgggfrdrvtltrdvyreiaymdirglkpddt
    avyycardrsygdsswaldawgqgttvvvsartastkgpsvfplapcsrstsest
    aalgclvkdyfpepvtvswnsgaltsgvhtfpaviqssglysissvvtvpssslgt
    ktytcnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfppkpkdtl
    misrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeqfnstyrv
    vsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvctlppsq
    eemtknqvslscavkgfypsdiavewesngqpennykttppvldsdgsfflvs
    kltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgvp SEQ ID
    srfsgsgthtsfnltisdlqaddiatyycqvlqffgrgsrlhikgqpkaapdivmtqtplsl NO: 369
    svtpgqpasiscksaqslvhnnantylswylqkpggspqsliykvsnrfsgvpdrfsgs
    gsgtdftlkisrveaedvgvyycgqgtqypftfgsgtkveiktkgpsrtvaapsvfifpps
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 40 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactaggtacgccaggc NO: 370
    ccctggacaggaactggaatgaatcggcagcatctaccccggcaacgtaaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgactactgcacccggt
    cccactacggcaggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtgt
    ctagcgcgtcgaccaagggcccctcggtgaccctctggccccttgcagcagaagcacca
    gcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtgaccg
    tgtccggaactctggcgctctgacaagcagcgtgcacaccatccagccgtgaccagag
    cagcggcctgtactactgagcagcgtcgtgacagtgcccagcagcagcctgggcacca
    agacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcgggt
    ggaatctaagtacggccctccagccctccttgcccagcccagaatactgggcggaccc
    tccgtgttcctgttccccccaaagcccaaggacaccagatgatcagccggacccccgaa
    gtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaattggtacg
    tggacgacgtagaagtgcacaacgccaagaccaaacccagagaggaacagttcaacag
    cacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaag
    agtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccatcagc
    aaggccaagggccagccccgcgagcctcaagtgtataccctgcccccagccaggaaga
    gatgaccaagaaccaggtgtccagtggtgtacgtgaaaggcttctaccccagcgacatt
    gccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccct
    gtgctggacagcgacggctcattatcctatactccaagctgaccgtgaacaagagccggt
    ggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccactac
    acccagaagtccctgtctctgtccctaggcaag
    Light chain A gacatccagatgacccagagccccagcagcctgtctgccgcgtgggcgacagagtga SEQ ID
    ccatcacctgtcaggccagccagaacatctacgtatggctgaactggtatcaacagaagc NO: 371
    ccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgtgcc
    cagcagattttctggcagcggctccggcaccgacttcaccctgacaatcagcccctgcag
    cccgaggacattgccacctactactgccagcagggccagacctacccctacacattggc
    cagggcaccaagctggaaatcaagcgtacagtggccgctcccagcgtgttcatcttccca
    cctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacnct
    acccccacgaggccaaggtacaatggaaggtggacaatgccctgcagagcagcaaca
    gccaggaaagcgtaaccgaacaggacagcaaggactccacctacaacctgaacaaca
    ccctgaccctgagcaaggccgactacgagaagcacaagatgtacgcctgcgaagtgac
    ccaccagggcctatctagccccgtgaccaagagatcaaccgggcgagtgt
    Heavy chain B caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 372
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcsacaga SEQ ID
    gtgaccatcaactgccagacctctcaggctgggcagegacctgcactggtatc NO: 373
    agcacaagcctggcagagcceccaagagctgatccaccacacaagcagcgtg
    gaagatggcgtgcccagcagattaccggcagcggcttccacaccagcttcaacc
    tgaccatcagcgatagcaggccgacgacattgccacctactattgtcaggtgctg
    cagttcttcggcagaggcagcagactgcacatcaagggccagcccaaggccgc
    ccccgacatcgtgatgacccaacccccagagcctgagcgtgacacctggaca
    gcctgccagcatcagctgcaagagcagccagagcctggtgcacaacaacgcca
    acacctacctgagctggtatctgcagaagcccggccagagcccccagtccctgat
    ctacaaggtgtccaacagattcagcgcgtgcccgacagattctccggcagcgg
    ctctggcaccgacttcaccctgaagatcagccgggtggaagccgaggacgtggg
    cgtgtactattgtggccagggcacccagtaccccttcacattggcagcggcacca
    aggtggaaatcaagaccaagggccccagccgtacggtggccgctcccagcgtg
    ttcatcttcccacctagcgacgagcagctgaagtccggcacagcactgtcgtgtg
    cctgctgaaacttctacccccgcgaggccaaagtgcagtggaaggtggacaa
    cgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacagcaag
    gactccacctacagcctgagcagcaccctgacactgacaaggccgactacga
    aagcacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtg
    accaagagcttcaaccggggcgagtgt
    Binding Protein 41 Amino Acid Sequences
    Heavy chain A Qvqlvqsgaevvkpgasvkvsckasgytftsyyihwvrqapgqglewigsiypgnv SEQ ID
    ntnyaqkfqgratltvdtsistaymelsrlrsddtavyyctshygldwnfdvwgkgttv NO: 374
    tvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflg
    gpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpre
    eqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvytlp
    pcqeemtkmnqvslwclvkgfypsdiavewesngqpennykttppvldsdgsfflysk
    ltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Diqmtqspsslsasvgdrvtitcqasqniyvwlnwyqqkpgkapklliykasnlhtgv SEQ ID
    psrfsgsgsgtdffitisslqpediatyycqqgqtypytfqqgtkleikrtvaapsvfifpps NO: 375
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlvesgggvvqpgrslrlscaasgftftkawmhwvrqapgkqlewvaqi SEQ ID
    kdksnsyatyyadsvkgrftisrddskntlylqmnslraedtavvycrgvyyal NO: 376
    spfdywgqgtlvtvsssrahlvqsgtamkkpgasvrvscqtsgytftahilfwfr
    qapgrglewvgwikpqygavnfgggfrdrvtltrdvyreiaymdirglkpddt
    avyycardrsygdsswaldawgqgttvvvsartastkgpsvfplapcsrstsest
    aalgclvkdyfpepvtvswnsgaltsgvhtfpaviqssglysissvvtvpssslgt
    ktytcnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfppkpkdtl
    misrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeqfnstyrv
    vsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvctlppsq
    eemtknqvslscavkgfypsdiavewesngqpennykttppvldsdgsfflvs
    kltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgvp SEQ ID
    srfsgsgthtsfnltisdlqaddiatyycqvlqffgrgsrlhikgqpkaapdivmtqtplsl NO: 377
    svtpgqpasiscksaqslvhnnantylswylqkpggspqsliykvsnrfsgvpdrfsgs
    gsgtdftlkisrveaedvgvyycgqgtqypftfgsgtkveiktkgpsrtvaapsvfifpps
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 41 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactaggtacgccaggc NO: 378
    ccctggacaggaactggaatgaatcggcagcatctaccccggcaacgtaaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgactactgcacccggt
    cccactacggcaggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtgt
    ctagcgcgtcgaccaagggcccctcggtgaccctctggccccttgcagcagaagcacca
    gcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtgaccg
    tgtccggaactctggcgctctgacaagcagcgtgcacaccatccagccgtgaccagag
    cagcggcctgtactactgagcagcgtcgtgacagtgcccagcagcagcctgggcacca
    agacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcgggt
    ggaatctaagtacggccctccagccctccttgcccagcccagaatactgggcggaccc
    tccgtgttcctgttccccccaaagcccaaggacaccagatgatcagccggacccccgaa
    gtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaattggtacg
    tggacgacgtagaagtgcacaacgccaagaccaaacccagagaggaacagttcaacag
    cacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaag
    agtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccatcagc
    aaggccaagggccagccccgcgagcctcaagtgtataccctgcccccagccaggaaga
    gatgaccaagaaccaggtgtccagtggtgtacgtgaaaggcttctaccccagcgacatt
    gccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccct
    gtgctggacagcgacggctcattatcctatactccaagctgaccgtgaacaagagccggt
    ggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccactac
    acccagaagtccctgtctctgtccctaggcaag
    Light chain A gacatccagatgacccagagccccagcagcctgtctgccgcgtgggcgacagagtga SEQ ID
    ccatcacctgtcaggccagccagaacatctacgtatggctgaactggtatcaacagaagc NO: 379
    ccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgtgcc
    cagcagattttctggcagcggctccggcaccgacttcaccctgacaatcagcccctgcag
    cccgaggacattgccacctactactgccagcagggccagacctacccctacacattggc
    cagggcaccaagctggaaatcaagcgtacagtggccgctcccagcgtgttcatcttccca
    cctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacnct
    acccccacgaggccaaggtacaatggaaggtggacaatgccctgcagagcagcaaca
    gccaggaaagcgtaaccgaacaggacagcaaggactccacctacaacctgaacaaca
    ccctgaccctgagcaaggccgactacgagaagcacaagatgtacgcctgcgaagtgac
    ccaccagggcctatctagccccgtgaccaagagatcaaccgggcgagtgt
    Heavy chain B caggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaagcctgagact SEQ ID
    gagctgtgccgccaacggatcaccttcaccaaggcctggatgcactgggtacgccagg NO: 380
    cccctggaaagcagaggaatgggtggcccagatcaaggacaagagcaacagctacgc
    cacctactacgccgacagcgtgaagggccggttcaccatcagccgggacgacagcaag
    aacaccctgtacctgcagatgaacagcctgcgggccgaggacaccaccatgtactactgt
    cggggcgtgtactatgccagagccccttcgattactggggccagggaaccctcgtgacc
    gtgtctagtgacaaaacccataccaaagcccacctagtgcagtctggcaccgccatgaag
    aaaccaggcgcctctgtacggatgtcctgtcagacaagcggctacaccttcaccgcccac
    atcctgttctggttccggcaggcccctaacaaaggactggaatgagtggaataaatcaag
    ccccagtatggcgccgtgaacttcggcggaaacttccgggataaagtgaccctgacccg
    ggacgtgtaccgcgagatcgcctacatggacatccggggcctgaagcccgatgacaccg
    ccgtgtactactgcgccagagacagaagctacggcgacagcagctgggctctggatgctt
    ggggccagggcacaaccgtggtggtgtctgccgataagacccacaccaccagcacaaa
    gggcccatcggttccctctggccccagcagcagaagcaccagcgaatctacagccgc
    cctgggctgcctcgtgaagaactacatcccaagcccatgaccatgtcctggaactaggc
    gctctgacaaacggcgtacacacctttccagccgtactccagaacaacggcctgtactct
    ctgagcagcgtcgtgacagtgcccagcagcagcctgggcaccaagacctacacctgtaa
    cgtggaccacaagcccagcaacaccaaggtggacaagcgggtggaatctaagtacggc
    cctccctgccctccttgcccagcccctgaatactgggcggaccctccgtgacctgttcccc
    ccaaagcccaaggacaccctgatgatcagccgaacccccgaagtgacctgcatggtggt
    ggatgtgtcccaggaagatcccgaggtacagttcaattggtacatggacggcgtgaaagt
    gcacaacgccaagaccaagcccagagaggaacagttcaacagcacctaccgggtggtg
    tccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtgcaaggt
    gtccaacaagggcctgcccagctccatcgagaaaaccatcagcaaggccaagggccag
    ccccgcgagcctcaagtgtgtaccctgccccctagccaggaagaaataaccaagaacca
    ggtgtccctgagagtgccgtaaaaggatctaccccagcgacattgccgtggaatggga
    gagcaacggccaaccegaaaacaactacaaaaccaccccccctgtgaggacagegac
    ggctcattcttcctggtgtccaagctgaccgtggacaagagccggtggcaggaaggcaac
    gtgttcagctgaccgtgatgcacgaggccctgcacaaccactacacccagaagtccctgt
    ctctgtccctgggcaag
    Light chain B tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcgacagagtgac SEQ ID
    catcaactgccagacctctcagggcgtgggcagcgacctgcactggtatcagcacaagc NO: 381
    ctggcagagcccccaaactactgatccaccacacaagcagcgtggaagatggcgtgcc
    cagcagattttccggcagcggcttccacaccagcttcaacctgaccatcagcgatctgcag
    gccgacgacattgccacctactattgtcaggtgctgcagttcttcggcagaggcagcagac
    tgcacatcaaggacaaaaacccataccgacatcgtgatgacccagacccccctgagcctga
    gcgtgacacctggacagcctgccagcatcagctgcaagagcagccagagcctggtgca
    caacaacgccaacacctacctgaactagtatagcagaagcccagccagagcccccagt
    ccctgatctacaaggtgtccaacagattcagcggcgtgcccgacagattctccggcagcg
    gctctggcaccgacttcaccctgaagatcagccgggtggaagccgaggacgtgggcgtg
    tactattgtggccagggcacccagtaccccttcacctttggcagcggcaccaaggtggaa
    atcaaggataagacccatacccgtacggtggccgctcccagcgtgttcatcttcccaccta
    gcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgagaacaacttctacc
    cccgcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagcc
    aggaaagcatgaccgagcaggacagcaaggactccacctacagcctgagcagcaccct
    gacactgagcaaggccgactacgagaagcacaagatgtacacctgcaaaatgacccac
    cagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 42 Amino Acid Sequences
    Heavy chain A Qvqlvqsgaevvkpgasvkvsckasgytftsyyihwvrqapgqglewigsiypgnv SEQ ID
    ntnyaqkfqgratltvdtsistaymelsrlrsddtavyyctshygldwnfdvwgkgttv NO: 382
    tvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflg
    gpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpre
    eqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvytlp
    pcqeemtkmnqvslwclvkgfypsdiavewesngqpennykttppvldsdgsfflysk
    ltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Diqmtqspsslsasvgdrvtitcqasqniyvwlnwyqqkpgkapklliykasnlhtgv SEQ ID
    psrfsgsgsgtdffitisslqpediatyycqqgqtypytfqqgtkleikrtvaapsvfifpps NO: 383
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikp SEQ ID
    qygavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdssw NO: 384
    aldawgqgttvvvsadkthtqvqlvesgggvvqpgrslrlscaasgftftkaw
    mhwvrqapgkqlewvaqikdksnsyatyyadsvkgrftisrddskntlylqm
    nslraedtavyycrgvyyalspfdywgqgtlvtvssdkthtastkgpsvfplapc
    srstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvt
    vpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfp
    pkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeq
    fnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvc
    tlppsqeemtknqvslscavkgfypsdiavewesngqpennykttppyldsd
    gsfflvskltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Divmtqtplslsvtpgqpasisckssqslvhnnantylswylqkpgqspqsliykvsnr SEQ ID
    fsgvpdrfsgsgsgtdftlkisrveaedvgvyycgqgtqypftfgsgtkveikdkthtyih NO: 385
    vtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgvpsrfs
    gsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikdkthtrtvaapsvfifppsdeql
    ksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltlskad
    yekhkvyacevthqglsspvtksfnrgec
    Binding Protein 42 Nucleotide Sequences
    Heavy chain A caggtgcagctgcaggaatctggccctggcctcgtgaagcctagccagaccctgagcct SEQ ID
    gacctgtaccgtgtccggcttcagcctgagcgactacggcgtgcactgggtgcgccagc NO: 386
    cacctggaaaaggcctggaatggctgggcgtgatctgggctggcggaggcaccaacta
    caaccccagcctaaaatccagaaagaccatcagcaaggacaccagcaagaaccaggtg
    tccctgaagctgagcagcgtgacagccgccgataccgccgtgtactactgcgccagaga
    caagggctacagctactactacagcatggactactggggccagggcaccaccgtgaccg
    tgtcatccgcgtcgaccaagggcccctcggtgttccctaggccccttgcagcagaagca
    ccagcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtga
    ccgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctcca
    gagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggca
    ccaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcg
    ggtggaatctaagtacggccctccctgccaccttgcccagcccctgaatttctgggcgga
    ccctccgtgttcctgttccccccaaagcccaagaacaccctgatgatcagccggaccccc
    gaagtaacctgcgtaatggtggatgtatcccaggaagatcccaaggtgcagttcaattggt
    acgtggacggcgtgaaaatgcacaacgccaagaccaagcccagagaagaacagttca
    acagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggc
    aaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccat
    cagcaaggccaagggccagccccgcgagcctcaagtgtataccctgcccccttgccag
    gaagagatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccccagc
    gacattgccgtgaaatgggagagcaacgaccagcccaagaacaactacaagaccaccc
    cccctgtactggacagcgacggctcattcttcctgtactccaagctgaccgtggacaagag
    ccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaacc
    actacacccagaagtccctgtctctgtccagggcaag
    Light chain A gacatccagatgacccagagccccagcagcctgtctgccgcgtgggcgacagagtga SEQ ID
    ccatcacctgtcaggccagccagaacatctacgtatggctgaactggtatcaacagaagc NO: 387
    ccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgtgcc
    cagcagattttctggcagcggctccggcaccgacttcaccctgacaatcagcccctgcag
    cccgaggacattgccacctactactgccagcagggccagacctacccctacacattggc
    cagggcaccaagctggaaatcaagcgtacagtggccgctcccagcgtgttcatcttccca
    cctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacnct
    acccccacgaggccaaggtacaatggaaggtggacaatgccctgcagagcagcaaca
    gccaggaaagcgtaaccgaacaggacagcaaggactccacctacaacctgaacaaca
    ccctgaccctgagcaaggccgactacgagaagcacaagatgtacgcctgcgaagtgac
    ccaccagggcctatctagccccgtgaccaagagatcaaccgggcgagtgt
    Heavy chain B agagcccacctggtgcagtctggcaccgccatgaagaaaccaagcgcctctgtgcgggt SEQ ID
    gtcctgtcagacaagcagctacaccttcaccgcccacatcctgttctggttccggcagacc NO: 388
    cctggcagaggactggaatgagtgggatggatcaagccccagtatggcgccgtgaactt
    cggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgagatcacct
    acatggacatccggggcctgaagcccgatgacaccgccgtggggctactgcgccagagac
    agaagctacggcgacagcagagggctctggatgcttggggccagggcacaaccgtgg
    tggtgtctgccgacaaaacccatacccaagtgcaactaatggaatctagcgacggagtg
    gtgcagcctgacaaaaacctgaaactgaactatgccgccagcgacttcaccttcaccaa
    ggcctggatgcactgggtgcgccaggcccctggaaagcagaggaatgggtggcccag
    atcaaggacaagagcaacagctacgccacctactacgccgacagcgtgaagggccagtt
    caccatcagccgggacgacagcaagaacaccagtacctgcagatgaacagcctgcag
    gccgagaacaccgccgtatactactgtcggggcgtgtactatgccctgaaccccttgatt
    actggggccaaagaaccctcgtaaccgtatctaatgataagacccacaccgcttcgacca
    agggcccatcggtgttccctctgacccatgcagcagaagcaccagcgaatctacagccg
    ccctgggctgcctcgtgaaggactactttcccgagcccgtgaccgtgtcctggaactctgg
    cgctctgacaagcggcgtgcacacctttccagccgtgctccagagcagcgacctgtactc
    tctgagcagcgtcgtgacagtgcccagcagcagcctgagcaccaaaacctacacctgta
    acgtggaccacaagcccagcaacaccaagatggacaagcgggtggaatctaagtacga
    ccctccctgccctccttgcccagcccctgaatactgagcgaaccctccgtgttcctattccc
    cccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtg
    gtggatgtgtcccaggaagatcccgaggtgcagttcaattggtacgtggacggcgtggaa
    gtgcacaacgccaagaccaagcccagagaggaacagttcaacagcacctaccgggtgg
    tgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtgcaag
    gtgtccaacaagggcctgcccagctccatcgagaaaaccatcagcaaggccaagggcc
    agccccgcgagcctcaagtgtgtaccctgccccctagccagaaaaagatgaccaagaac
    caggtgtccctaagctgtgccgtgaaaggcttctaccccagcaacattgccgtaaaatgg
    gagagcaacggccagcccgagaacaactacaagaccaccccccctgtgctggacagcg
    acggctcattcttcctggtgtccaagctgaccgtggacaagagccggtggcaggaaggca
    acgtattcagctgctccgtgatgcacgaggccctgcacaaccactacacccagaagtccc
    tgtctctgtccctagacaag
    Light chain B gacatcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtgcacaacaacgccaacacctacctgagct NO: 389
    ggtatctgcagaagcccggccagaacccccagtccctgatctacaagatgtccaacagat
    tcagcggcgtgcccaacagattctccggcagcggctaggcaccgacttcaccctaaaaa
    tcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtac
    cccttcacctttggcagcggcaccaaggtggaaatcaaggacaaaacccatacctacatc
    cacgtgacccagagccccagcagcctgtccgigtccatcggcgacagagtgaccatcaa
    ctgccagacctctcagagcgtgggcagcgacctgcactagtatcagcacaagcctggca
    gagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgtgcccagcag
    attttccggcaacggcttccacaccagatcaacctgaccatcaacgatctgcaggccgac
    gacattgccacctactattgtcaggtgagcagttatcggcagaggcagcagactacacat
    caaggataagacccatacccgtacggtggccgctcccagcgtgttcatcttcccacctagc
    gacgagcagctgaagtccggcacagcctagtcgtgtgcctgctgaacaacttctaccccc
    gcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagccagg
    aaaacgtgaccgagcaggacaacaaggactccacctacagcctgagcagcaccctaac
    actgaacaaggccgactacgagaagcacaaggtatacgcctgcgaagtaacccaccag
    ggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 43 Amino Acid Sequences
    Heavy chain A Qvqlqesgpglvkpsqtlsltctvsgfslsdygvhwvrqppgkglewlgviwagggt SEQ ID
    nynpslksrktiskdtsknqvslklssvtaadtavyycardkgysyyysmdywgqgtt NO: 390
    vtvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpav
    lqssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapefl
    ggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkp
    reeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvyt
    lppcqeemtknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsffly
    skltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Divltqspaslavspgqratitcrasesveyyvtslmqwyqqkpgqppkllifaasnve SEQ ID
    sgvparfsgsgsgtdftltinpveandvanyycqqsrkvpytfgqgtkleikrtvaapsv NO: 391
    fifppsdeqlksgtasvvcllnnfypreakvqwkydnalqsgnsqesvteqdskdstys
    lsstltskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Rahlvqsgtamkkpgasvrvscqtsgytftahilfwfrqapgrglewvgwikp SEQ ID
    qygavnfgggfrdrvtltrdvyreiaymdirglkpddtavyycardrsygdssw NO: 392
    aldawgqgttvvvsadkthtqvqlvesgggvvqpgrslrlscaasgftftkaw
    mhwvrqapgkqlewvaqikdksnsyatyyadsvkgrftisrddskntlylqm
    nslraedtavyycrgvyyalspfdywgqgtlvtvssdkthtastkgpsvfplapc
    srstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssglyslssvvt
    vpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfp
    pkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeq
    fnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvc
    tlppsqeemtknqvslscavkgfypsdiavewesngqpennykttppyldsd
    gsfflvskltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Divmtqtplslsvtpgqpasisckssqslvhnnantylswylqkpgqspqsliykvsnr SEQ ID
    fsgvpdrfsgsgsgtdftlkisrveaedvgvyycgqgtqypftfgsgtkveikdkthtyih NO: 393
    vtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgvpsrfs
    gsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikdkthtrtvaapsvfifppsdeql
    ksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltlskad
    yekhkvyacevthqglsspvtksfnrgec
    Binding Protein 43 Nucleotide Sequences
    Heavy chain A caggtgcagctgcaggaatctggccctggcctcgtgaagcctagccagaccctgagcct SEQ ID
    gacctgtaccgtgtccggcttcagcctgagcgactacggcgtgcactgggtgcgccagc NO: 394
    cacctggaaaaggcctggaatggctgggcgtgatctgggctggcggaggcaccaacta
    caaccccagcctaaaatccagaaagaccatcagcaaggacaccagcaagaaccaggtg
    tccctgaagctgagcagcgtgacagccgccgataccgccgtgtactactgcgccagaga
    caagggctacagctactactacagcatggactactggggccagggcaccaccgtgaccg
    tgtcatccgcgtcgaccaagggcccctcggtgttccctaggccccttgcagcagaagca
    ccagcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtga
    ccgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctcca
    gagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggca
    ccaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcg
    ggtggaatctaagtacggccctccctgccaccttgcccagcccctgaatttctgggcgga
    ccctccgtgttcctgttccccccaaagcccaagaacaccctgatgatcagccggaccccc
    gaagtaacctgcgtaatggtggatgtatcccaggaagatcccaaggtgcagttcaattggt
    acgtggacggcgtgaaaatgcacaacgccaagaccaagcccagagaagaacagttca
    acagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggc
    aaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccat
    cagcaaggccaagggccagccccgcgagcctcaagtgtataccctgcccccttgccag
    gaagagatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccccagc
    gacattgccgtgaaatgggagagcaacgaccagcccaagaacaactacaagaccaccc
    cccctgtactggacagcgacggctcattcttcctgtactccaagctgaccgtggacaagag
    ccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaacc
    actacacccagaagtccctgtctctgtccagggcaag
    Light chain A gacatccagatgacccagagccccagcagcctgtctgccgcgtgggcgacagagtga SEQ ID
    ccatcacctgtcaggccagccagaacatctacgtatggctgaactggtatcaacagaagc NO: 395
    ccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgtgcc
    cagcagattttctggcagcggctccggcaccgacttcaccctgacaatcagcccctgcag
    cccgaggacattgccacctactactgccagcagggccagacctacccctacacattggc
    cagggcaccaagctggaaatcaagcgtacagtggccgctcccagcgtgttcatcttccca
    cctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacnct
    acccccacgaggccaaggtacaatggaaggtggacaatgccctgcagagcagcaaca
    gccaggaaagcgtaaccgaacaggacagcaaggactccacctacaacctgaacaaca
    ccctgaccctgagcaaggccgactacgagaagcacaagatgtacgcctgcgaagtgac
    ccaccagggcctatctagccccgtgaccaagagatcaaccgggcgagtgt
    Heavy chain B agagcccacctggtgcagtctggcaccgccatgaagaaaccaagcgcctctgtgcgggt SEQ ID
    gtcctgtcagacaagcagctacaccttcaccgcccacatcctgttctggttccggcagacc NO: 396
    cctggcagaggactggaatgagtgggatggatcaagccccagtatggcgccgtgaactt
    cggcggaggcttccgggatagagtgaccctgacccgggacgtgtaccgcgagatcacct
    acatggacatccggggcctgaagcccgatgacaccgccgtggggctactgcgccagagac
    agaagctacggcgacagcagagggctctggatgcttggggccagggcacaaccgtgg
    tggtgtctgccgacaaaacccatacccaagtgcaactaatggaatctagcgacggagtg
    gtgcagcctgacaaaaacctgaaactgaactatgccgccagcgacttcaccttcaccaa
    ggcctggatgcactgggtgcgccaggcccctggaaagcagaggaatgggtggcccag
    atcaaggacaagagcaacagctacgccacctactacgccgacagcgtgaagggccagtt
    caccatcagccgggacgacagcaagaacaccagtacctgcagatgaacagcctgcag
    gccgagaacaccgccgtatactactgtcggggcgtgtactatgccctgaaccccttgatt
    actggggccaaagaaccctcgtaaccgtatctaatgataagacccacaccgcttcgacca
    agggcccatcggtgttccctctgacccatgcagcagaagcaccagcgaatctacagccg
    ccctgggctgcctcgtgaaggactactttcccgagcccgtgaccgtgtcctggaactctgg
    cgctctgacaagcggcgtgcacacctttccagccgtgctccagagcagcgacctgtactc
    tctgagcagcgtcgtgacagtgcccagcagcagcctgagcaccaaaacctacacctgta
    acgtggaccacaagcccagcaacaccaagatggacaagcgggtggaatctaagtacga
    ccctccctgccctccttgcccagcccctgaatactgagcgaaccctccgtgttcctattccc
    cccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtggtg
    gtggatgtgtcccaggaagatcccgaggtgcagttcaattggtacgtggacggcgtggaa
    gtgcacaacgccaagaccaagcccagagaggaacagttcaacagcacctaccgggtgg
    tgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaagagtacaagtgcaag
    gtgtccaacaagggcctgcccagctccatcgagaaaaccatcagcaaggccaagggcc
    agccccgcgagcctcaagtgtgtaccctgccccctagccagaaaaagatgaccaagaac
    caggtgtccctaagctgtgccgtgaaaggcttctaccccagcaacattgccgtaaaatgg
    gagagcaacggccagcccgagaacaactacaagaccaccccccctgtgctggacagcg
    acggctcattcttcctggtgtccaagctgaccgtggacaagagccggtggcaggaaggca
    acgtattcagctgctccgtgatgcacgaggccctgcacaaccactacacccagaagtccc
    tgtctctgtccctagacaag
    Light chain B gacatcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtgcacaacaacgccaacacctacctgagct NO: 397
    ggtatctgcagaagcccggccagaacccccagtccctgatctacaagatgtccaacagat
    tcagcggcgtgcccaacagattctccggcagcggctaggcaccgacttcaccctaaaaa
    tcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtac
    cccttcacctttggcagcggcaccaaggtggaaatcaaggacaaaacccatacctacatc
    cacgtgacccagagccccagcagcctgtccgtgtccatcggcgacagagtgaccatcaa
    ctgccagacctctcagagcgtgggcagcgacctgcactagtatcagcacaagcctggca
    gagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgtgcccagcag
    attttccggcaacggcttccacaccagatcaacctgaccatcaacgatctgcaggccgac
    gacattgccacctactattgtcaggtgagcagttatcggcagaggcagcagactacacat
    caaggataagacccatacccgtacggtggccgctcccagcgtgttcatcttcccacctagc
    gacgagcagctgaagtccggcacagcctagtcgtgtgcctgctgaacaacttctaccccc
    gcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagccagg
    aaaacgtgaccgagcaggacaacaaggactccacctacagcctgagcagcaccctaac
    actgaacaaggccgactacgagaagcacaaggtatacgcctgcgaagtaacccaccag
    ggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 44 Amino Acid Sequences
    Heavy chain A Qvqlqesgpglvkpsqtlsltctvsgfslsdygvhwvrqppgkglewlgviwagggt SEQ ID
    nynpslksrktiskdtsknqvslklssvtaadtavyycardkgysyyysmdywgqgtt NO: 398
    vtvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpav
    lqssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapefl
    ggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkp
    reeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvyt
    lppcqeemtknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsffly
    skltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Divltqspaslavspgqratitcrasesveyyvtslmqwyqqkpgqppkllifaasnve SEQ ID
    sgvparfsgsgsgtdftltinpveandvanyycqqsrkvpytfgqgtkleikrtvaapsv NO: 399
    fifppsdeqlksgtasvvcllnnfypreakvqwkydnalqsgnsqesvteqdskdstys
    lsstltskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlvesgggvvqpgrslrlscaasgftftkawmhwvrqapgkqlewvaqi SEQ ID
    kdksnsyatyyadsvkgrftisrddskntlylqmnslraedtavvycrgvyyal NO: 400
    spfdywgqgtlvtvsssrahlvqsgtamkkpgasvrvscqtsgytftahilfwfr
    qapgrglewvgwikpqygavnfgggfrdrvtltrdvyreiaymdirglkpddt
    avyycardrsygdsswaldawgqgttvvvsartastkgpsvfplapcsrstsest
    aalgclvkdyfpepvtvswnsgaltsgvhtfpaviqssglysissvvtvpssslgt
    ktytcnvdhkpsntkvdkrveskygppcppcpapeflggpsvflfppkpkdtl
    misrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpreeqfnstyrv
    vsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvctlppsq
    eemtknqvslscavkgfypsdiavewesngqpennykttppvldsdgsfflvs
    kltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgvp SEQ ID
    srfsgsgthtsfnltisdlqaddiatyycqvlqffgrgsrlhikgqpkaapdivmtqtplsl NO: 401
    svtpgqpasiscksaqslvhnnantylswylqkpggspqsliykvsnrfsgvpdrfsgs
    gsgtdftlkisrveaedvgvyycgqgtqypftfgsgtkveiktkgpsrtvaapsvfifpps
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 44 Nucleotide Sequences
    Heavy chain A caggtgcagctgcaggaatctggccctggcctcgtgaagcctagccagaccctgagcct SEQ ID
    gacctgtaccgtgtccggcttcagcctgagcgactacggcgtgcactgggtgcgccagc NO: 402
    cacctggaaaaggcctggaatggctgggcgtgatctgggctggcggaggcaccaacta
    caaccccagcctaaaatccagaaagaccatcagcaaggacaccagcaagaaccaggtg
    tccctgaagctgagcagcgtgacagccgccgataccgccgtgtactactgcgccagaga
    caagggctacagctactactacagcatggactactggggccagggcaccaccgtgaccg
    tgtcatccgcgtcgaccaagggcccctcggtgttccctaggccccttgcagcagaagca
    ccagcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtga
    ccgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctcca
    gagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggca
    ccaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcg
    ggtggaatctaagtacggccctccctgccaccttgcccagcccctgaatttctgggcgga
    ccctccgtgttcctgttccccccaaagcccaagaacaccctgatgatcagccggaccccc
    gaagtaacctgcgtaatggtggatgtatcccaggaagatcccaaggtgcagttcaattggt
    acgtggacggcgtgaaaatgcacaacgccaagaccaagcccagagaagaacagttca
    acagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggc
    aaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccat
    cagcaaggccaagggccagccccgcgagcctcaagtgtataccctgcccccttgccag
    gaagagatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccccagc
    gacattgccgtgaaatgggagagcaacgaccagcccaagaacaactacaagaccaccc
    cccctgtactggacagcgacggctcattcttcctgtactccaagctgaccgtggacaagag
    ccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaacc
    actacacccagaagtccctgtctctgtccagggcaag
    Light chain A gacatccagatgacccagagccccagcagcctgtctgccgcgtgggcgacagagtga SEQ ID
    ccatcacctgtcaggccagccagaacatctacgtatggctgaactggtatcaacagaagc NO: 403
    ccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgtgcc
    cagcagattttctggcagcggctccggcaccgacttcaccctgacaatcagcccctgcag
    cccgaggacattgccacctactactgccagcagggccagacctacccctacacattggc
    cagggcaccaagctggaaatcaagcgtacagtggccgctcccagcgtgttcatcttccca
    cctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacnct
    acccccacgaggccaaggtacaatggaaggtggacaatgccctgcagagcagcaaca
    gccaggaaagcgtaaccgaacaggacagcaaggactccacctacaacctgaacaaca
    ccctgaccctgagcaaggccgactacgagaagcacaagatgtacgcctgcgaagtgac
    ccaccagggcctatctagccccgtgaccaagagatcaaccgggcgagtgt
    Heavy chain B caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 404
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B tacatccacgtgacccagagccccagcagcctgtccgtgtccatcggcsacaga SEQ ID
    gtgaccatcaactgccagacctctcaggctgggcagegacctgcactggtatc NO: 405
    agcacaagcctggcagagcceccaagagctgatccaccacacaagcagcgtg
    gaagatggcgtgcccagcagattaccggcagcggcttccacaccagcttcaacc
    tgaccatcagcgatagcaggccgacgacattgccacctactattgtcaggtgctg
    cagttcttcggcagaggcagcagactgcacatcaagggccagcccaaggccgc
    ccccgacatcgtgatgacccaacccccagagcctgagcgtgacacctggaca
    gcctgccagcatcagctgcaagagcagccagagcctggtgcacaacaacgcca
    acacctacctgagctggtatctgcagaagcccggccagagcccccagtccctgat
    ctacaaggtgtccaacagattcagcgcgtgcccgacagattctccggcagcgg
    ctctggcaccgacttcaccctgaagatcagccgggtggaagccgaggacgtggg
    cgtgtactattgtggccagggcacccagtaccccttcacattggcagcggcacca
    aggtggaaatcaagaccaagggccccagccgtacggtggccgctcccagcgtg
    ttcatcttcccacctagcgacgagcagctgaagtccggcacagcactgtcgtgtg
    cctgctgaaacttctacccccgcgaggccaaagtgcagtggaaggtggacaa
    cgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacagcaag
    gactccacctacagcctgagcagcaccctgacactgacaaggccgactacga
    aagcacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtg
    accaagagcttcaaccggggcgagtgt
    Binding Protein 45 Amino Acid Sequences
    Heavy chain A Qvqlqesgpglvkpsqtlsltctvsgfslsdygvhwvrqppgkglewlgviwagggt SEQ ID
    nynpslksrktiskdtsknqvslklssvtaadtavyycardkgysyyysmdywgqgtt NO: 406
    vtvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpav
    lqssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapefl
    ggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkp
    reeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvyt
    lppcqeemtknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsffly
    skltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Divltqspaslavspgqratitcrasesveyyvtslmqwyqqkpgqppkllifaasnve SEQ ID
    sgvparfsgsgsgtdftltinpveandvanyycqqsrkvpytfgqgtkleikrtvaapsv NO: 407
    fifppsdeqlksgtasvvcllnnfypreakvqwkydnalqsgnsqesvteqdskdstys
    lsstltskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B qvqlvesgggvvqpgrslrlscaasgftftkawmhwvrqapgkqlewvaqik SEQ ID
    dksnsyatyyadsvkgrftisrddskntlylqmnslraedtavyycrgvyyals NO: 408
    pfdywgqgtlvtvssdkthtrahlvqsgtamkkpgasvrvscqtsgytftahilf
    wfrqapgrglewvgwikpqygavnfgggfrdrvtltrdvyreiaymdirglkp
    ddtavyycardrsygdsswaldawgggttvvvsadkthtastkgpsvfplapc
    srstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavlqssgtyslssvvt
    vpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflggpsvflf
    ppkpkdtimisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpree
    qfnstyrvvsvltvlhqdwllgkeykckvsnkglpssiektiskakgqprepq
    vctlppsqeemtknqvslscavkgfypsdiavewesngqpennykttppvld
    sdgsfflvskltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain B Yihvtqspsslsvsigdrvtincqtsqgvgsdlhwyqhkpgrapkllihhtssvedgvp SEQ ID
    srfsgsgfhtsfnltisdlqaddiatyycqvlqffgrgsrlhikdkthtdivmtqtpl NO: 409
    slsvtpgqpasisckssqslvhnnantylswylqkpgqspqsliykvsnrfsgvpdrf
    sgsgsgtdftlkisrveaedvgvyycgqgtqypftfgsgtkveikdkthtrtvaaps
    vfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskd
    styslsstltlskadyekhkvyacevthqglsspvtksfnrgec
    Binding Protein 45 Nucleotide Sequences
    Heavy chain A caggtgcagctgcaggaatctggccctggcctcgtgaagcctagccagaccctgagcct SEQ ID
    gacctgtaccgtgtccggcttcagcctgagcgactacggcgtgcactgggtgcgccagc NO: 410
    cacctggaaaaggcctggaatggctgggcgtgatctgggctggcggaggcaccaacta
    caaccccagcctaaaatccagaaagaccatcagcaaggacaccagcaagaaccaggtg
    tccctgaagctgagcagcgtgacagccgccgataccgccgtgtactactgcgccagaga
    caagggctacagctactactacagcatggactactggggccagggcaccaccgtgaccg
    tgtcatccgcgtcgaccaagggcccctcggtgttccctaggccccttgcagcagaagca
    ccagcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtga
    ccgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctcca
    gagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggca
    ccaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcg
    ggtggaatctaagtacggccctccctgccaccttgcccagcccctgaatttctgggcgga
    ccctccgtgttcctgttccccccaaagcccaagaacaccctgatgatcagccggaccccc
    gaagtaacctgcgtaatggtggatgtatcccaggaagatcccaaggtgcagttcaattggt
    acgtggacggcgtgaaaatgcacaacgccaagaccaagcccagagaagaacagttca
    acagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggc
    aaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccat
    cagcaaggccaagggccagccccgcgagcctcaagtgtataccctgcccccttgccag
    gaagagatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccccagc
    gacattgccgtgaaatgggagagcaacgaccagcccaagaacaactacaagaccaccc
    cccctgtactggacagcgacggctcattcttcctgtactccaagctgaccgtggacaagag
    ccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaacc
    actacacccagaagtccctgtctctgtccagggcaag
    Light chain A gacatcgtgctgacacagagccctgctagcctggccgtgtctcctggacagagggccac SEQ ID
    catcacctgtagagccagcgagagcgtggaatattacgtgaccagcctgatgcagtggta NO: 411
    tcagcagaagcccggccaaccccccaagctgctgattttcgccgccaacaacatggaaa
    gcggcgtgccagccagattttccgacagcggctctggcaccgacttcaccctgaccatca
    accccgtggaagccaacgacgtggccaactactactgccagcagagccggaaggtacc
    ctacacctttggccagggcaccaagctggaaatcaagcgtacggtggccgctcccagcg
    tgttcatcttcccacctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcct
    gctgaacaacttctacccccgcgaggccaaggtgcagtggaaggtggacaatgccctgc
    agagcggcaacagccaggaaagcgtgaccgagcaggacagcaaggactccacctaca
    gcctgagcagcaccagaccctgagcaaggccaactacgagaaacacaaggtatacgc
    ctgcgaagtaacccaccaggacctgtctagccccgtgaccaagagcttcaaccgggacg
    agtgt
    Heavy chain B caggtgcagctggtggaatctagcgacggagtgatgcagcctagcagaagcctgagac SEQ ID
    tgagctgtgccgccaacggcttcaccttcaccaaggcctagatgcactaggtacgccaa NO: 412
    gcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaacagctacg
    ccacctactacgccgacagcgtgaagggccggacaccatcagccgggacgacagcaa
    gaacaccagtacctacaaataaacagcctgcaggccgaagacaccgccgtatactact
    gtcggggcgtgtactatgccctgagccccttcgattactggggccagggaaccctcgtga
    ccgtgtctagtgacaaaacccataccagagcccacctggtgcagtctggcaccgccatga
    agaaaccaggcgcactgtgcgggtgtcctgtcagacaagcggctacaccacaccgccc
    acatcagttaggttccggcaggcccctggcagaagactggaatgggtaggatggatca
    agccccagtatggcgccgtgaacttcggcagaggcttccgggatagagtgaccctgacc
    cgggacgtgtaccgcgagatcgcctacatggacatccggggcctgaagcccgataaca
    ccgccgtgtactactgcgccagagacagaagctacggcgacagcagctgggctctggat
    gcttggggccagggcacaaccgtggtggtgtctgccgataagacccacaccgccagca
    caaagggcccatcggtgttccctctggccccttgcagcagaagcaccagcgaatctacag
    ccgccctgggctgcctcgtgaaggactactttcccgagcccgtgaccgtgtcctggaactc
    tggcgctctgacaagcggcgtgacacctttccagccgtgaccagagcagggcctgta
    ctctctgagcagcgtcgtgacagtgcccagcagcagcctgagcaccaagacctacacct
    gtaacgtgaaccacaagcccagcaacaccaaggtggacaagcgagtggaatctaaata
    cggccctccctgccctccttgcccagcccctgaatttctgggcggaccctccgtgttcctgt
    tccccccaaagcccaaggacaccctgatgatcagccggacccccgaagtgacctgcgtg
    gtggtggatgtgtcccaggaagatcccgaggtgcagacaatggtacgtggacggcgtg
    gaagtgcacaacgccaagaccaagcccagagaggaacagttcaacagcacctaccgg
    gtggtgtccatgctgaccatgctgcaccaggactggctgaacggcaaagagtacaagta
    caaggtgtccaacaaggacctgcccagaccatcgagaaaaccatcagcaaggccaag
    ggccagccccgcgagcctcaagttgtaccctgccccctagccaggaagagatgacca
    agaaccaggtgtccctgagctgtgccgtgaaaggcttctaccccagcgacattgccgtgg
    aatgggagagcaacggccagcccgagaacaactacaagaccaccccccctgtgagga
    cagcgacggctcattcacctggtgtccaagagaccgtggacaagagccggtggcagg
    aaggcaacgtgacagagaccgtgatgcacgagaccctgcacaaccactacacccag
    aagtccctgtctctgtccagggcaag
    Light chain B tacatccacgtgacccagancccagcagcctgtccgtgtccatcggcgacagagtgac SEQ ID
    catcaactgccagacctctcagggcgtaggcagcgacctgcactgatatcagcacaagc NO: 413
    ctggcagagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgtgcc
    cagcagattttccggcagcggcttccacaccagatcaacctgaccatcagcgatctgcag
    gccgacgacattgccacctactattgtcaggtgagcagacttcggcagaggcagcagac
    tgcacatcaaggacaaaacccataccgacatcgtgatgacccagacccccctgagcctg
    agcgtgacacctggacagcctgccagcatcagagcaagagcagccagagcctggtgc
    acaacaacgccaacacctacctgagaggtatctgagaagcccggccagagccccca
    gtccagatctacaaggtgtccaacagattcagcggcgtacccgacagattctccggcag
    cggctctggcaccgacttcaccctgaagatcagccgggtggaagccgaggacgtgggc
    gtgtactattgtggccagggcacccagtaccccttcacctttggcagcggcaccaaggtg
    gaaatcaaggataagacccatacccgtacggtggccgctcccagcgtgacatcttcccac
    ctagcgacgagcagctgaagtccggcacagcctagtcgtgtgcctgctgaacaacttcta
    cccccacgaggccaaagtgcagtagaaggtgaacaacgccagcagagcggcaacag
    ccaggaaagcatgaccgagcaggacagcaaggactccacctacagcctgagcagcac
    cctgacactgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgacc
    caccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 46 Amino Acid Sequences
    Heavy chain A Qvqlvqsgaevvkpgasvkvsckasgytftsyyihwvrqapgqglewigsiypgnv SEQ ID
    ntnyaqkfqgratltvdtsistaymelsrlrsddtavyyctshygldwnfdvwgkgttv NO: 414
    tvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflg
    gpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpre
    eqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvytlp
    pcqeemtkmnqvslwclvkgfypsdiavewesngqpennykttppvldsdgsfflysk
    ltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Diqmtqspsslsasvgdrvtitcqasqniyvwlnwyqqkpgkapklliykasnlhtgv SEQ ID
    psrfsgsgsgtdffitisslqpediatyycqqgqtypytfqqgtkleikrtvaapsvfifpps NO: 415
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmgwi SEQ ID
    shegdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgskhrlrd NO: 416
    yalydddgalnwavdvdylsnlefwgqgtavtvsssqvqlvesgggvvqpgr
    slrlscaasgftftkawmhwvrqapgkqlewvaqikdksnsyatyyadsvkg
    rftisrddskntlylqmnslraedtavyycrgvyyalspfdywgqgtlvtvssrta
    stkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpa
    peflggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgve
    vhnaktkpreeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektis
    kakgqprepqvctlppsqeemtknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqegnvfscsvmhealhnhytqksls
    lslgk
    Light chain B Divmtqtplslsvtpgqpasisckssqslvhnnantylswylqkpgspqsliykvsnr SEQ ID
    fsgvpdrfsgsgsgtdftikisrveaccivgvyycgqgtqypftfgsgtkveikgqpkaa NO: 417
    pdfvitqsphslsvtpaesasiscksshsiihgdrnnylawyvqkparspqiiiylassra
    sgvpdrfsgsgsdkdftikisrvetethigtyycniggrespvirtfmtkvdiktkgpsrt
    vaapsvfifppsdeciiksgtasvvcllnnfypreakvqwkvdnalcisgnsciesvteqd
    skdsiyslsstitlskadyekhkvyacehqgisspvtksfnrgec
    Binding Protein 46 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 418
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain A gacatccagatgacccagagccccagcagcctgtctgccgcgtgggcgacagagtga SEQ ID
    ccatcacctgtcaggccagccagaacatctacgtatggctgaactggtatcaacagaagc NO: 419
    ccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgtgcc
    cagcagattttctggcagcggctccggcaccgacttcaccctgacaatcagcccctgcag
    cccgaggacattgccacctactactgccagcagggccagacctacccctacacattggc
    cagggcaccaagctggaaatcaagcgtacagtggccgctcccagcgtgttcatcttccca
    cctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacnct
    acccccacgaggccaaggtacaatggaaggtggacaatgccctgcagagcagcaaca
    gccaggaaagcgtaaccgaacaggacagcaaggactccacctacaacctgaacaaca
    ccctgaccctgagcaaggccgactacgagaagcacaagatgtacgcctgcgaagtgac
    ccaccagggcctatctagccccgtgaccaagagatcaaccgggcgagtgt
    Heavy chain B caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 420
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B gacatcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtgcacaacaacgccaacacctacctgagct NO: 421
    ggtatctgcagaagcccggccagaacccccagtccctgatctacaagatgtccaacagat
    tcagcggcgtgcccaacagattctccggcagcggctaggcaccgacttcaccctaaaaa
    tcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtac
    cccttcacctttggcagcggcaccaaggtggaaatcaaggacaaaacccatacctacatc
    cacgtgacccagagccccagcagcctgtccgtgtccatcggcgacagagtgaccatcaa
    ctgccagacctctcagagcgtgggcagcgacctgcactagtatcagcacaagcctggca
    gagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgtgcccagcag
    attttccggcaacggcttccacaccagatcaacctgaccatcaacgatctgcaggccgac
    gacattgccacctactattgtcaggtgagcagttatcggcagaggcagcagactacacat
    caaggataagacccatacccgtacggtggccgctcccagcgtgttcatcttcccacctagc
    gacgagcagctgaagtccggcacagcctagtcgtgtgcctgctgaacaacttctaccccc
    gcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagccagg
    aaaacgtgaccgagcaggacaacaaggactccacctacagcctgagcagcaccctaac
    actgaacaaggccgactacgagaagcacaaggtatacgcctgcgaagtaacccaccag
    ggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 47 Amino Acid Sequences
    Heavy chain A Qvqlvqsgaevvkpgasvkvsckasgytftsyyihwvrqapgqglewigsiypgnv SEQ ID
    ntnyaqkfqgratltvdtsistaymelsrlrsddtavyyctshygldwnfdvwgkgttv NO: 422
    tvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflg
    gpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpre
    eqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvytlp
    pcqeemtkmnqvslwclvkgfypsdiavewesngqpennykttppvldsdgsfflysk
    ltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Diqmtqspsslsasvgdrvtitcqasqniyvwlnwyqqkpgkapklliykasnlhtgv SEQ ID
    psrfsgsgsgtdffitisslqpediatyycqqgqtypytfqqgtkleikrtvaapsvfifpps NO: 423
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmgwi SEQ ID
    shegdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgskhrlrd NO: 424
    yalydddgalnwavdvdylsnlefwgqgtavtvsssqvqlvesgggvvqpgr
    slrlscaasgftftkawmhwvrqapgkqlewvaqikdksnsyatyyadsvkg
    rftisrddskntlylqmnslraedtavyycrgvyyalspfdywgqgtlvtvssrta
    stkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpa
    peflggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgve
    vhnaktkpreeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektis
    kakgqprepqvctlppsqeemtknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqegnvfscsvmhealhnhytqksls
    lslgk
    Light chain B Divmtqtplslsvtpgqpasisckssqslvhnnantylswylqkpgspqsliykvsnr SEQ ID
    fsgvpdrfsgsgsgtdftikisrveaccivgvyycgqgtqypftfgsgtkveikgqpkaa NO: 425
    pdfvitqsphslsvtpaesasiscksshsiihgdrnnylawyvqkparspqiiiylassra
    sgvpdrfsgsgsdkdftikisrvetethigtyycniggrespvirtfmtkvdiktkgpsrt
    vaapsvfifppsdeciiksgtasvvcllnnfypreakvqwkvdnalcisgnsciesvteqd
    skdsiyslsstitlskadyekhkvyacehqgisspvtksfnrgec
    Binding Protein 47 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 426
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain A gacatcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtgcacaacaacgccaacacctacctgagct NO: 427
    ggtatctgcagaagcccggccagaacccccagtccctgatctacaagatgtccaacagat
    tcagcggcgtgcccaacagattctccggcagcggctaggcaccgacttcaccctaaaaa
    tcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtac
    cccttcacctttggcagcggcaccaaggtggaaatcaaggacaaaacccatacctacatc
    cacgtgacccagagccccagcagcctgtccgtgtccatcggcgacagagtgaccatcaa
    ctgccagacctctcagagcgtgggcagcgacctgcactagtatcagcacaagcctggca
    gagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgtgcccagcag
    attttccggcaacggcttccacaccagatcaacctgaccatcaacgatctgcaggccgac
    gacattgccacctactattgtcaggtgagcagttatcggcagaggcagcagactacacat
    caaggataagacccatacccgtacggtggccgctcccagcgtgttcatcttcccacctagc
    gacgagcagctgaagtccggcacagcctagtcgtgtgcctgctgaacaacttctaccccc
    gcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagccagg
    aaaacgtgaccgagcaggacaacaaggactccacctacagcctgagcagcaccctaac
    actgaacaaggccgactacgagaagcacaaggtatacgcctgcgaagtaacccaccag
    ggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 428
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B gacatcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgccag SEQ ID
    catcagctgcaagagcagccagagcctggtgcacaacaacgccaacacctacctgagct NO: 429
    ggtatctgcagaagcccggccagaacccccagtccctgatctacaagatgtccaacagat
    tcagcggcgtgcccaacagattctccggcagcggctaggcaccgacttcaccctaaaaa
    tcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtac
    cccttcacctttggcagcggcaccaaggtggaaatcaaggacaaaacccatacctacatc
    cacgtgacccagagccccagcagcctgtccgtgtccatcggcgacagagtgaccatcaa
    ctgccagacctctcagagcgtgggcagcgacctgcactagtatcagcacaagcctggca
    gagcccccaagctgctgatccaccacacaagcagcgtggaagatggcgtgcccagcag
    attttccggcaacggcttccacaccagatcaacctgaccatcaacgatctgcaggccgac
    gacattgccacctactattgtcaggtgagcagttatcggcagaggcagcagactacacat
    caaggataagacccatacccgtacggtggccgctcccagcgtgttcatcttcccacctagc
    gacgagcagctgaagtccggcacagcctagtcgtgtgcctgctgaacaacttctaccccc
    gcgaggccaaagtgcagtggaaggtggacaacgccctgcagagcggcaacagccagg
    aaaacgtgaccgagcaggacaacaaggactccacctacagcctgagcagcaccctaac
    actgaacaaggccgactacgagaagcacaaggtatacgcctgcgaagtaacccaccag
    ggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Binding Protein 48 Amino Acid Sequences
    Heavy chain A Qvqlvqsgaevvkpgasvkvsckasgytftsyyihwvrqapgqglewigsiypgnv SEQ ID
    ntnyaqkfqgratltvdtsistaymelsrlrsddtavyyctshygldwnfdvwgkgttv NO: 430
    tvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflg
    gpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpre
    eqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvytlp
    pcqeemtkmnqvslwclvkgfypsdiavewesngqpennykttppvldsdgsfflysk
    ltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Diqmtqspsslsasvgdrvtitcqasqniyvwlnwyqqkpgkapklliykasnlhtgv SEQ ID
    psrfsgsgsgtdffitisslqpediatyycqqgqtypytfqqgtkleikrtvaapsvfifpps NO: 431
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlvesgggvvqpgrslrlscaasgftftkawmhwyrqapgkqlewvaqi SEQ ID
    kdksnsyatyyadsvkgrftisrddskntlykynnsiraedtavyycrgvyyals NO: 432
    pfdywgqgtlytysssqvhitqsgpevrkpgtsykysckapgntiktydlhwv
    rsvpg1glqwmgwishegdkkvivertkakvtidwdrstntayiqlsgitsgd
    tavyycakgskhrirdyalydddgainwaydvdylsniefwgqgtaytyssrt
    astkgpsvfplapcsrstsestaalgelykdyfpepmswnsgaitsgvhtfpay
    lgssglyslssyytypssslgtktytcnvdhkpsntkvdkrveskygppcppcp
    apeflggpsvfifppkpkdtimisapeytcyvydvsqedpevqfimyydgy
    evhnaktkpreeqfnstyrvvsvitvlhqdvvingkeykekvsnkgipssiekti
    skakgqprepqvctIppscieemtknqvstscavkgfypsdiavewesnme
    nnykttppvldsdgsfflvsldtvdksrwqegnvfscsvrnhealhnhytqksls
    lslgk
    Light chain B Dfvltqsphslsvtpgesasiscksshslihgdmnylawyvqkpgrspqllassras SEQ ID
    gvpdrfsgsgsdkdfilkisrvetedvgtyycatqgrespvirtfgqtttkvdikgqpkaap NO: 433
    divmtqtplsisvtpggpasisckssgslvlitmantylswykikpggspcisitykvsnrf
    sgvpdrfsgsgsgtdfilkisneacdvgvyycgqgttpftfgsgtkveiktkgpsrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalgsgnsqcsvtecids
    kdstystssthiskadyckhkvyaccvthqgisspvtksfargec
    Binding Protein 48 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 434
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagaccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgaaccagctgagaagcgacgacaccaccatgtactactgcacccagt
    cccactacgacctggattagaacttcgacatgtagggcaagagcaccaccgtgacagtgt
    ctagcgcgtcgaccaagggcccctcggtgttccctctggccccttgcagcagaagcacca
    gcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtgaccg
    tgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctccagag
    cagcggcagtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggcacca
    agacctacacctgtaacatggaccacaaacccagcaacaccaaggtagacaagcgagt
    ggaatctaagtacggccctccctgccctccttgcccagcccctgaatttctgggcggaccc
    tccgtgttcctgttccccccaaagcccaaggacaccctgatgatcagccggacccccgaa
    gtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaattggtacg
    tggacggcgtggaagtgcacaacgccaagaccaagcccagagaggaacagttcaacag
    cacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaag
    agtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccatcagc
    aaggccaagggccagccccgcgagcctcaagtgtataccctgcccccttgccaggaaga
    gatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggatctaccccagcgacatt
    gccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccct
    gtgctggacagcgacggctcattcacctgtactccaaactgaccgtggacaagaaccaat
    ggcaggaaggcaacgtgttcagctgaccgtgatacacgaggccagcacaaccactac
    acccagaagtccctgtctctgtccctgggcaag
    Light chain A gacatccagatgacccagcagccccagcagcctgtctgccagcgtgggcgacagagtga SEQ ID
    ccatcacctgtcaggccagccagaacatctacgtgtggctgaactggtatcagcagaagc NO: 435
    ccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgtgcc
    cagcagattttctggcagcggctccggcaccgacttcaccctgacaatcagctccctgcag
    cccgaggacattgccacctactactgccagcagggccagacctacccctacacctttggc
    cagggcaccaagctggaaatcaagcgtacggtggccgctcccagcgtgttcatcttccca
    cctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttct
    acccccacgaggccaaggtacaatggaaggtggacaatgccctgcagagcagcaaca
    gccaggaaagcgtaaccgagcaggacagcaaggactccacctacaacctgagcagca
    ccctgaccctgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgac
    ccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B caggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaagcctgagact SEQ ID
    gagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactgggtgcgccagg NO: 436
    cccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaacagctacgc
    cacctactacgccgacagcgtgaagggccggttcaccatcagccgggacgacagcaag
    aacaccagtacctgcagatgaacagcctgcgggccgaggacaccgccgtgtactactgt
    cggggcgtgtactatgccagaacccatcgattactgaggccagagaaccctcgtaacc
    gtgtctagtagccaggtgcacctgacacagagcggacccgaagtgcggaagcctggca
    cctctgtgaaggtgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcact
    gggtgcgcagcgtgccaggacagggactgcagtggatgggctggatcagccacgagg
    gcgacaagaaagtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacaga
    agcaccaacaccgcctacctacagagagcggcctaacctctggcgataccgccgtgta
    ctactgcaccaaaggcagcaagcaccgactgagagactacgccagtacgacgatgac
    ggcgccagaactgggccgtggatgtgaactacctgagcaacctggaattaggggcca
    gggcacagccgtgaccgtgtcatctcggaccgccagcacaaagggcccatcggtgttcc
    ctctggccccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtga
    aggactactttcccgagcccgtgaccgtgtcctggaactctggcgctagacaagcggcgt
    gcacacctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgac
    agtgcccagcagcagcagggcaccaagacctacacctataacgtggaccacaagccc
    agcaacaccaagatggacaagcgggtagaatctaagtacgaccctccctgccctccttgc
    ccagcccctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggaca
    ccctgatgatcagccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaa
    gatcccgaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagac
    caagcccagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgc
    tgcaccaggactggctgaacggcaaagagtacaagtgcaaggtatccaacaagagcctg
    cccagctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaag
    tgtgtaccctgccccctagccaggaagagatgaccaagaaccaggtgtccctgagctgtg
    ccgtgaaaggatctaccccagcgacattgccgtggaatgggagagcaacggccagccc
    gagaacaactacaagaccaccccccctgtgaggacagcgacggctcattcacctggtgt
    ccaagctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtg
    atgcacgaggccctgcacaaccactacacccagaagtccctatactgtccctggacaag
    Light chain B gacttcgtgagacccagagccctcacagcctgagcgtgacacctggcgagagcgccag SEQ ID
    catcagagcaagagcagccactccctgatccacggcgaccgaaacaactacctagatg NO: 437
    gtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagcagcagag
    ccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttcaccctgaag
    atcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagggcagagaga
    gcccctggacctttggccagggcaccaaggtggacatcaagggccagcccaaggccgc
    ccccgacatcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctg
    ccagcatcagctgcaagagcagccagagcctggtgcacaacaacgccaacacctacctg
    agctggtatctgcagaagcccggccagagcccccagtccctgatctacaaggtgtccaac
    agattcagcggctttgcccgacagattctccggcagcggctctggcaccgacttcacccta
    aagatcaaccaggtaaaaaccgaggacatgggcgtgtactattatggccagggcaccc
    agtacccatcaccatgacaacggcaccaaggtggaaatcaagaccaaaggccccagc
    cgtacggtggccgctcccagcgtgttcatcttcccacctagcgacgagcagctgaagtcc
    ggcacagcctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcag
    tggaaggtggacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcag
    gacagcaaggactccacctacagcctgagcagcaccctgacactgagcaaggccgact
    acgagaagcacaaggtgtacgcctgcgaagtgacccaccagggcctatctagccccgtg
    ctccaagaacttcaaccgaagcgagtgt
    Binding Protein 49 Amino Acid Sequences
    Heavy chain A Qvqlvqsgaevvkpgasvkvsckasgytftsyyihwvrqapgqglewigsiypgnv SEQ ID
    ntnyaqkfqgratltvdtsistaymelsrlrsddtavyyctshygldwnfdvwgkgttv NO: 438
    tvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapeflg
    gpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkpre
    eqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvytlp
    pcqeemtkmnqvslwclvkgfypsdiavewesngqpennykttppvldsdgsfflysk
    ltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Diqmtqspsslsasvgdrvtitcqasqniyvwlnwyqqkpgkapklliykasnlhtgv SEQ ID
    psrfsgsgsgtdffitisslqpediatyycqqgqtypytfqqgtkleikrtvaapsvfifpps NO: 439
    deqlksgtasvvcllnnfypreakvqwkvdnalqsgnsqesvteqdskdstyslsstltl
    skadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlvesgggvvqpgrslrlscaasgftftkawmhwyrqapgkqlewvaqi SEQ ID
    kdksnsyatyyadsvkgrftisrddskntlykynnsiraedtavyycrgvyyals NO: 440
    pfdywgqgtlytysssqvhitqsgpevrkpgtsykysckapgntiktydlhwv
    rsvpg1glqwmgwishegdkkvivertkakvtidwdrstntayiqlsgitsgd
    tavyycakgskhrirdyalydddgainwaydvdylsniefwgqgtaytyssrt
    astkgpsvfplapcsrstsestaalgelykdyfpepmswnsgaitsgvhtfpay
    lgssglyslssyytypssslgtktytcnvdhkpsntkvdkrveskygppcppcp
    apeflggpsvfifppkpkdtimisapeytcyvydvsqedpevqfimyydgy
    evhnaktkpreeqfnstyrvvsvitvlhqdvvingkeykekvsnkgipssiekti
    skakgqprepqvcttppscieemtknqvstscavkgfypsdiavewesnme
    nnykttppvldsdgsfflvsldtvdksrwqegnvfscsvrnhealhnhytqksls
    lslgk
    Light chain B Dfvltqsphslsvtpgesasiscksshslihgdmnylawyvqkpgrspqllassras SEQ ID
    gvpdrfsgsgsdkdfilkisrvetedvgtyycatqgrespvirtfgqtttkvdikgqpkaap NO: 441
    divmtqtplsisvtpggpasisckssgslvlitmantylswykikpggspcisitykvsnrf
    sgvpdrfsgsgsgtdfilkisneacdvgvyycgqgttpftfgsgtkveiktkgpsrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalgsgnsqcsvtecids
    kdstystssthiskadyckhkvyaccvthqgisspvtksfargec
    Binding Protein 49 Nucleotide Sequences
    Heavy chain A caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 442
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagaccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgaaccagctgagaagcgacgacaccaccatgtactactgcacccagt
    cccactacgacctggattagaacttcgacatgtagggcaagagcaccaccgtgacagtgt
    ctagcgcgtcgaccaagggcccctcggtgttccctctggccccttgcagcagaagcacca
    gcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtgaccg
    tgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctccagag
    cagcggcagtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggcacca
    agacctacacctgtaacatggaccacaaacccagcaacaccaaggtagacaagcgagt
    ggaatctaagtacggccctccctgccctccttgcccagcccctgaatttctgggcggaccc
    tccgtgttcctgttccccccaaagcccaaggacaccctgatgatcagccggacccccgaa
    gtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaattggtacg
    tggacggcgtggaagtgcacaacgccaagaccaagcccagagaggaacagttcaacag
    cacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaag
    agtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccatcagc
    aaggccaagggccagccccgcgagcctcaagtgtataccctgcccccttgccaggaaga
    gatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggatctaccccagcgacatt
    gccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccct
    gtgctggacagcgacggctcattcacctgtactccaaactgaccgtggacaagaaccaat
    ggcaggaaggcaacgtgttcagctgaccgtgatacacgaggccagcacaaccactac
    acccagaagtccctgtctctgtccctgggcaag
    Light chain A gacatccagatgacccagcagccccagcagcctgtctgccagcgtgggcgacagagtga SEQ ID
    ccatcacctgtcaggccagccagaacatctacgtgtggctgaactggtatcagcagaagc NO: 443
    ccggcaaggcccccaagctgctgatctacaaggccagcaacctgcacaccggcgtgcc
    cagcagattttctggcagcggctccggcaccgacttcaccctgacaatcagctccctgcag
    cccgaggacattgccacctactactgccagcagggccagacctacccctacacctttggc
    cagggcaccaagctggaaatcaagcgtacggtggccgctcccagcgtgttcatcttccca
    cctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctgctgaacaacttct
    acccccacgaggccaaggtacaatggaaggtggacaatgccctgcagagcagcaaca
    gccaggaaagcgtaaccgagcaggacagcaaggactccacctacaacctgagcagca
    ccctgaccctgagcaaggccgactacgagaagcacaaggtgtacgcctgcgaagtgac
    ccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcgagtgt
    Heavy chain B caggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaagcctgagact SEQ ID
    gagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactgggtgcgccagg NO: 444
    cccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaacagctacgc
    cacctactacgccgacagcgtgaagggccggttcaccatcagccgggacgacagcaag
    aacaccagtacctgcagatgaacagcctgcgggccgaggacaccgccgtgtactactgt
    cggggcgtgtactatgccagaacccatcgattactgaggccagagaaccctcgtaacc
    gtgtctagtagccaggtgcacctgacacagagcggacccgaagtgcggaagcctggca
    cctctgtgaaggtgtcctgcaaggcccctggcaacaccctgaaaacctacgacctgcact
    gggtgcgcagcgtgccaggacagggactgcagtggatgggctggatcagccacgagg
    gcgacaagaaagtgatcgtggaacggttcaaggccaaagtgaccatcgactgggacaga
    agcaccaacaccgcctacctacagagagcggcctaacctctggcgataccgccgtgta
    ctactgcaccaaaggcagcaagcaccgactgagagactacgccagtacgacgatgac
    ggcgccagaactgggccgtggatgtgaactacctgagcaacctggaattaggggcca
    gggcacagccgtgaccgtgtcatctcggaccgccagcacaaagggcccatcggtgttcc
    ctctggccccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtga
    aggactactttcccgagcccgtgaccgtgtcctggaactctggcgctagacaagcggcgt
    gcacacctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgac
    agtgcccagcagcagcagggcaccaagacctacacctataacgtggaccacaagccc
    agcaacaccaagatggacaagcgggtagaatctaagtacgaccctccctgccctccttgc
    ccagcccctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggaca
    ccctgatgatcagccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaa
    gatcccgaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagac
    caagcccagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgc
    tgcaccaggactggctgaacggcaaagagtacaagtgcaaggtatccaacaagagcctg
    cccagctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaag
    tgtgtaccctgccccctagccaggaagagatgaccaagaaccaggtgtccctgagctgtg
    ccgtgaaaggatctaccccagcgacattgccgtggaatgggagagcaacggccagccc
    gagaacaactacaagaccaccccccctgtgaggacagcgacggctcattcacctggtgt
    ccaagctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtg
    atgcacgaggccctgcacaaccactacacccagaagtccctatactgtccctggacaag
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtgacactggcgagagcgccag SEQ ID
    catcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctggcttg NO: 445
    gtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagcagcagag
    ccagcggcgtgcccgatagattactggcagcggcagcgacaaggacttcaccctgaag
    atcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagggcagagaga
    gcccctggacctttggccagggcaccaaggtggacatcaaggacaaaacccataccgac
    atcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgccagcat
    cagctacaagagcagccagagcctgatgcacaacaacgccaacacctacctgagaggt
    atctgcagaagcccggccagagcccccagtccctgatctacaaggtgtccaacagattca
    gcggcgtgcccgacagattctccggcagcggctctggcaccgacttcaccctgaagatca
    gccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtaccc
    cttcacctttggcagcggcaccaaggtggaaatcaaggataagacccatacccgtacggt
    ggccgctcccagcgtgttcatatcccacctagcaacgagcagctgaagtccggcacagc
    ctctgtcgtatgcctactaaacaacttctacccccgcaaggccaaaatgcagtggaaggta
    gacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacagcaa
    ggactccacctacagcctgagcagcaccctgacactgagcaaggccgactacgagaag
    cacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagag
    cttcaaccggggcgagtgt
    Binding Protein 50 Amino Acid Sequences
    Heavy chain A Qvqlqesgpglvkpsqtlsltctvsgfslsdygvhwvrqppgkglewlgviwagggt SEQ ID
    nynpslksrktiskdtsknqvslklssvtaadtavyycardkgysyyysmdywgqgtt NO: 446
    vtvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpav
    lqssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapefl
    ggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkp
    reeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvyt
    lppcqeemtknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsffly
    skltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Divltqspaslavspgqratitcrasesveyyvtslmqwyqqkpgqppkllifaasnve SEQ ID
    sgvparfsgsgsgtdftltinpveandvanyycqqsrkvpytfgqgtkleikrtvaapsv NO: 447
    fifppsdeqlksgtasvvcllnnfypreakvqwkydnalqsgnsqesvteqdskdstys
    lsstltskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmgwi SEQ ID
    shegdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgskhrlrd NO: 448
    yalydddgalnwavdvdylsnlefwgqgtavtvsssqvqlvesgggvvqpgr
    slrlscaasgftftkawmhwvrqapgkqlewvaqikdksnsyatyyadsvkg
    rftisrddskntlylqmnslraedtavyycrgvyyalspfdywgqgtlvtvssrta
    stkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpa
    peflggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgve
    vhnaktkpreeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektis
    kakgqprepqvctlppsqeemtknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqegnvfscsvmhealhnhytqksls
    lslgk
    Light chain B Divmtqtplslsvtpgqpasisckssqslvhnnantylswylqkpgspqsliykvsnr SEQ ID
    fsgvpdrfsgsgsgtdftikisrveaccivgvyycgqgtqypftfgsgtkveikgqpkaa NO: 449
    pdfvitqsphslsvtpaesasiscksshsiihgdrnnylawyvqkparspqiiiylassra
    sgvpdrfsgsgsdkdftikisrvetethigtyycniggrespvirtfmtkvdiktkgpsrt
    vaapsvfifppsdeciiksgtasvvcllnnfypreakvqwkvdnalcisgnsciesvteqd
    skdsiyslsstitlskadyekhkvyacehqgisspvtksfnrgec
    Binding Protein 50 Nucleotide Sequences
    Heavy chain A caggtgcagctgcaggaatctggccctggcctcgtgaagcctagccagaccctgagcct SEQ ID
    gacctgtaccgtgtccggcttcagcctgagcgactacggcgtgcactgggtgcgccagc NO: 450
    cacctggaaaaggcctggaatggctgggcgtgatctgggctggcggaggcaccaacta
    caaccccagcctaaaatccagaaagaccatcagcaaggacaccagcaagaaccaggtg
    tccctgaagctgagcagcgtgacagccgccgataccgccgtgtactactgcgccagaga
    caagggctacagctactactacagcatggactactggggccagggcaccaccgtgaccg
    tgtcatccgcgtcgaccaagggcccctcggtgttccctaggccccttgcagcagaagca
    ccagcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtga
    ccgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctcca
    gagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggca
    ccaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcg
    ggtggaatctaagtacggccctccctgccaccttgcccagcccctgaatttctgggcgga
    ccctccgtgttcctgttccccccaaagcccaagaacaccctgatgatcagccggaccccc
    gaagtaacctgcgtaatggtggatgtatcccaggaagatcccaaggtgcagttcaattggt
    acgtggacggcgtgaaaatgcacaacgccaagaccaagcccagagaagaacagttca
    acagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggc
    aaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccat
    cagcaaggccaagggccagccccgcgagcctcaagtgtataccctgcccccttgccag
    gaagagatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccccagc
    gacattgccgtgaaatgggagagcaacgaccagcccaagaacaactacaagaccaccc
    cccctgtactggacagcgacggctcattcttcctgtactccaagctgaccgtggacaagag
    ccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaacc
    actacacccagaagtccctgtctctgtccagggcaag
    Light chain A gacatcgtgctgacacagagccctgctagcctggccgtgtctcctggacagagggccac SEQ ID
    catcacctgtagagccagcgagagcgtggaatattacgtgaccagcctgatgcagtggta NO: 451
    tcagcagaagcccggccaaccccccaagctgctgattttcgccgccaacaacatggaaa
    gcggcgtgccagccagattttccgacagcggctctggcaccgacttcaccctgaccatca
    accccgtggaagccaacgacgtggccaactactactgccagcagagccggaaggtacc
    ctacacctttggccagggcaccaagctggaaatcaagcgtacggtggccgctcccagcg
    tgttcatcttcccacctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcct
    gctgaacaacttctacccccgcgaggccaaggtgcagtggaaggtggacaatgccctgc
    agagcggcaacagccaggaaagcgtgaccgagcaggacagcaaggactccacctaca
    gcctgagcagcaccagaccctgagcaaggccaactacgagaaacacaaggtatacgc
    ctgcgaagtaacccaccaggacctgtctagccccgtgaccaagagcttcaaccgggacg
    agtgt
    Heavy chain B caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 452
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B gacttcgtgctgacccagagccctcacagcctgagcgtgacactggcgagagcgccag SEQ ID
    catcagctgcaagagcagccactccctgatccacggcgaccggaacaactacctggcttg NO: 453
    gtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagcagcagag
    ccagcggcgtgcccgatagattactggcagcggcagcgacaaggacttcaccctgaag
    atcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagggcagagaga
    gcccctggacctttggccagggcaccaaggtggacatcaaggacaaaacccataccgac
    atcgtgatgacccagacccccctgagcctgagcgtgacacctggacagcctgccagcat
    cagctacaagagcagccagagcctgatgcacaacaacgccaacacctacctgagaggt
    atctgcagaagcccggccagagcccccagtccctgatctacaaggtgtccaacagattca
    gcggcgtgcccgacagattctccggcagcggctctggcaccgacttcaccctgaagatca
    gccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtaccc
    cttcacctttggcagcggcaccaaggtggaaatcaaggataagacccatacccgtacggt
    ggccgctcccagcgtgttcatatcccacctagcaacgagcagctgaagtccggcacagc
    ctctgtcgtatgcctactaaacaacttctacccccgcaaggccaaaatgcagtggaaggta
    gacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacagcaa
    ggactccacctacagcctgagcagcaccctgacactgagcaaggccgactacgagaag
    cacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagag
    cttcaaccggggcgagtgt
    Binding Protein 51 Amino Acid Sequences
    Heavy chain A Qvqlqesgpglvkpsqtlsltctvsgfslsdygvhwvrqppgkglewlgviwagggt SEQ ID
    nynpslksrktiskdtsknqvslklssvtaadtavyycardkgysyyysmdywgqgtt NO: 454
    vtvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpav
    lqssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapefl
    ggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkp
    reeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvyt
    lppcqeemtknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsffly
    skltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Divltqspaslavspgqratitcrasesveyyvtslmqwyqqkpgqppkllifaasnve SEQ ID
    sgvparfsgsgsgtdftltinpveandvanyycqqsrkvpytfgqgtkleikrtvaapsv NO: 455
    fifppsdeqlksgtasvvcllnnfypreakvqwkydnalqsgnsqesvteqdskdstys
    lsstltskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvhltqsgpevrkpgtsvkvsckapgntlktydlhwvrsvpgqglqwmgwi SEQ ID
    shegdkkviverfkakvtidwdrstntaylqlsgltsgdtavyycakgskhrlrd NO: 456
    yalydddgalnwavdvdylsnlefwgqgtavtvsssqvqlvesgggvvqpgr
    slrlscaasgftftkawmhwvrqapgkqlewvaqikdksnsyatyyadsvkg
    rftisrddskntlylqmnslraedtavyycrgvyyalspfdywgqgtlvtvssrta
    stkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpavl
    qssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpa
    peflggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgve
    vhnaktkpreeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektis
    kakgqprepqvctlppsqeemtknqvslscavkgfypsdiavewesngqpe
    nnykttppvldsdgsfflvskltvdksrwqegnvfscsvmhealhnhytqksls
    lslgk
    Light chain B Divmtqtplslsvtpgqpasisckssqslvhnnantylswylqkpgspqsliykvsnr SEQ ID
    fsgvpdrfsgsgsgtdftikisrveaccivgvyycgqgtqypftfgsgtkveikgqpkaa NO: 457
    pdfvitqsphslsvtpaesasiscksshsiihgdrnnylawyvqkparspqiiiylassra
    sgvpdrfsgsgsdkdftikisrvetethigtyycniggrespvirtfmtkvdiktkgpsrt
    vaapsvfifppsdeciiksgtasvvcllnnfypreakvqwkvdnalcisgnsciesvteqd
    skdsiyslsstitlskadyekhkvyacehqgisspvtksfnrgec
    Binding Protein 51 Nucleotide Sequences
    Heavy chain A caggtgcagctgcaggaatctggccctggcctcgtgaagcctagccagaccctgagcct SEQ ID
    gacctgtaccgtgtccggcttcagcctgagcgactacggcgtgcactgggtgcgccagc NO: 458
    cacctggaaaaggcctggaatggctgggcgtgatctgggctggcggaggcaccaacta
    caaccccagcctaaaatccagaaagaccatcagcaaggacaccagcaagaaccaggtg
    tccctgaagctgagcagcgtgacagccgccgataccgccgtgtactactgcgccagaga
    caagggctacagctactactacagcatggactactggggccagggcaccaccgtgaccg
    tgtcatccgcgtcgaccaagggcccctcggtgttccctaggccccttgcagcagaagca
    ccagcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtga
    ccgtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctcca
    gagcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggca
    ccaagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcg
    ggtggaatctaagtacggccctccctgccaccttgcccagcccctgaatttctgggcgga
    ccctccgtgttcctgttccccccaaagcccaagaacaccctgatgatcagccggaccccc
    gaagtaacctgcgtaatggtggatgtatcccaggaagatcccaaggtgcagttcaattggt
    acgtggacggcgtgaaaatgcacaacgccaagaccaagcccagagaagaacagttca
    acagcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggc
    aaagagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccat
    cagcaaggccaagggccagccccgcgagcctcaagtgtataccctgcccccttgccag
    gaagagatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccccagc
    gacattgccgtgaaatgggagagcaacgaccagcccaagaacaactacaagaccaccc
    cccctgtactggacagcgacggctcattcttcctgtactccaagctgaccgtggacaagag
    ccggtggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaacc
    actacacccagaagtccctgtctctgtccagggcaag
    Light chain A gacatcgtgctgacacagagccctgctagcctggccgtgtctcctggacagagggccac SEQ ID
    catcacctgtagagccagcgagagcgtggaatattacgtgaccagcctgatgcagtggta NO: 459
    tcagcagaagcccggccaaccccccaagctgctgattttcgccgccaacaacatggaaa
    gcggcgtgccagccagattttccgacagcggctctggcaccgacttcaccctgaccatca
    accccgtggaagccaacgacgtggccaactactactgccagcagagccggaaggtacc
    ctacacctttggccagggcaccaagctggaaatcaagcgtacggtggccgctcccagcg
    tgttcatcttcccacctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcct
    gctgaacaacttctacccccgcgaggccaaggtgcagtggaaggtggacaatgccctgc
    agagcggcaacagccaggaaagcgtgaccgagcaggacagcaaggactccacctaca
    gcctgagcagcaccagaccctgagcaaggccaactacgagaaacacaaggtatacgc
    ctgcgaagtaacccaccaggacctgtctagccccgtgaccaagagcttcaaccgggacg
    agtgt
    Heavy chain B caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 460
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B gacatcgtgatgacccagacccccctgagcctgagcgtgacacaggacagcctgccag SEQ ID
    catcagctgcaaaagcagccagagcctggtgcacaacaacaccaacacctacctgagct NO: 461
    ggtatctgcagaagcccggccagaacccccagtccagatctacaagatgtccaacagat
    tcagcggcgtgcccaacagattaccggcagcggctaggcaccgacttcaccctaaaaa
    tcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtac
    cccttcacctttggcagcggcaccaaggtggaaatcaaggacaaaacccataccgacttc
    gtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgccagcatca
    gctgcaagagcagccactccctgatccacggcgaccggaacaactacctggcttggtac
    gtgcagaagcccggcagatccccccagctgctgatctacctggccagcagcagagcca
    gcggcgtgcccgatagattttaggcagcggcagcgacaaggacttcaccctgaagatca
    gccgggtggaaaccgaggacgtaagcacctactactgtatgcaggacaaagagagccc
    ctggacctttggccagggcaccaaggtggacatcaaggataagacccatacccgtacggt
    ggccgctcccagcgtgttcatcacccacctagcgacgagcagagaagtccggcacagc
    ctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtagaaggtg
    gacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacaacaa
    ggactccacctacagcctgaacaacaccctgacactgagcaaggccgactacgagaag
    cacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaaaag
    cttcaaccggggcgagtgt
    Binding Protein 52 Amino Acid Sequences
    Heavy chain A Qvqlqesgpglvkpsqtlsltctvsgfslsdygvhwvrqppgkglewlgviwagggt SEQ ID
    nynpslksrktiskdtsknqvslklssvtaadtavyycardkgysyyysmdywgqgtt NO: 462
    vtvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpav
    lqssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapefl
    ggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkp
    reeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvyt
    lppcqeemtknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsffly
    skltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Divltqspaslavspgqratitcrasesveyyvtslmqwyqqkpgqppkllifaasnve SEQ ID
    sgvparfsgsgsgtdftltinpveandvanyycqqsrkvpytfgqgtkleikrtvaapsv NO: 463
    fifppsdeqlksgtasvvcllnnfypreakvqwkydnalqsgnsqesvteqdskdstys
    lsstltskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlvesgggvvqpgrslrlscaasgftftkawmhwyrqapgkqlewvaqi SEQ ID
    kdksnsyatyyadsvkgrftisrddskntlykynnsiraedtavyycrgvyyals NO: 464
    pfdywgqgtlytysssqvhitqsgpevrkpgtsykysckapgntiktydlhwv
    rsvpg1glqwmgwishegdkkvivertkakvtidwdrstntayiqlsgitsgd
    tavyycakgskhrirdyalydddgainwaydvdylsniefwgqgtaytyssrt
    astkgpsvfplapcsrstsestaalgelykdyfpepmswnsgaitsgvhtfpay
    lgssglyslssyytypssslgtktytcnvdhkpsntkvdkrveskygppcppcp
    apeflggpsvfifppkpkdtimisapeytcyvydvsqedpevqfimyydgy
    evhnaktkpreeqfnstyrvvsvitvlhqdvvingkeykekvsnkgipssiekti
    skakgqprepqvcttppscieemtknqvstscavkgfypsdiavewesnme
    nnykttppvldsdgsfflvsldtvdksrwqegnvfscsvrnhealhnhytqksls
    lslgk
    Light chain B Dfvltqsphslsvtpgesasiscksshslihgdmnylawyvqkpgrspqllassras SEQ ID
    gvpdrfsgsgsdkdfilkisrvetedvgtyycatqgrespvirtfgqtttkvdikgqpkaap NO: 465
    divmtqtplsisvtpggpasisckssgslvlitmantylswykikpggspcisitykvsnrf
    sgvpdrfsgsgsgtdfilkisneacdvgvyycgqgttpftfgsgtkveiktkgpsrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalgsgnsqcsvtecids
    kdstystssthiskadyckhkvyaccvthqgisspvtksfargec
    Binding Protein 52 Nucleotide Sequences
    Heavy chain A caggtgcagctgcaggaatctggccctggcctcgtgaagcctagccagaccctgagcct SEQ ID
    gacctgtaccgtgtccggcttcagcctgagcgactacggcgtgcactgggtgcgccagcc NO: 466
    acctggaaaaggcctggaatggagggcgtgatctgggctggcggaggcaccaactaca
    accccagcctgaagtccagaaagaccatcagcaaggacaccagcaagaaccaggtgtc
    cctgaagctgagcagcgtgacagccaccgataccgccgtatactactacgccagagaca
    agggctacagctactactacagcatggactactggggccagggcaccaccgtgaccgtg
    tcatccgcgtcgaccaagggcccctcggtgttccctctggccccttgcagcagaagcacc
    agcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtgacc
    gtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctccaga
    gcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggcacc
    aagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcggg
    tggaatctaagtacggccctccctgccctccttacccaacccctgaatttagggcggacc
    ctccgtgttcctgttccccccaaagcccaaggacaccagatgatcaaccggacccccga
    agtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaattggtac
    gtggacggcgtggaagtgcacaacgccaagaccaagcccagagaggaacagttcaaca
    gcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaa
    gagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccatcag
    caaggccaagggccaaccccacgagcctcaaatgtataccctaccccatgccaggaaa
    agatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccccagcgacat
    tgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccct
    gtgctggacagcgacggctcattcttcctgtactccaagctgaccgtggacaagagccggt
    ggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccactac
    acccagaagtccctgtctctgtccctgggcaag
    Light chain A gacatcgtgctgacacagagccctgctagcctggccgtgtctcctggacagagggccac SEQ ID
    catcacctgtagagccagcgagagcgtgaatattacgtgaccagcctgatgcagtggtat NO: 467
    cagcagaagcccggccagccccccaagctgctgatatcgccgccaacaacgtggaaaa
    cggcgtgccagccagattttccggcagcggctctggcaccaacttcaccctgaccatcaa
    ccccgtggaagccaacgacgtggccaactactactgccagcagagccggaaggtgccc
    tacacctttggccagggcaccaagaggaaatcaagcgtacggtggccgctcccagcgt
    gttcatcttcccacctagcgacgagcagctgaagtccggcacagcctctgtcgtgtgcctg
    ctgaacaacttctacccccgcgaggccaaggtgcagtggaaggtggacaatgccctgca
    gagcggcaacagccaggaaaacgtgaccgagcaggacagcaaggactccacctacag
    cctgagcagcaccctgaccctgagcaaggccgactacgagaagcacaaggtgtacgcct
    gcgaagtgacccaccagggcctgtctagccccgtgaccaagagcttcaaccggggcga
    gtgt
    Heavy chain B caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 468
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B gacatcgtgatgacccagacccccctgagcctgagcgtgacacaggacagcctgccag SEQ ID
    catcagctgcaaaagcagccagagcctggtgcacaacaacaccaacacctacctgagct NO: 469
    ggtatctgcagaagcccggccagaacccccagtccagatctacaagatgtccaacagat
    tcagcggcgtgcccaacagattaccggcagcggctaggcaccgacttcaccctaaaaa
    tcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtac
    cccttcacctttggcagcggcaccaaggtggaaatcaaggacaaaacccataccgacttc
    gtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgccagcatca
    gctgcaagagcagccactccctgatccacggcgaccggaacaactacctggcttggtac
    gtgcagaagcccggcagatccccccagctgctgatctacctggccagcagcagagcca
    gcggcgtgcccgatagattttaggcagcggcagcgacaaggacttcaccctgaagatca
    gccgggtggaaaccgaggacgtaagcacctactactgtatgcaggacaaagagagccc
    ctggacctttggccagggcaccaaggtggacatcaaggataagacccatacccgtacggt
    ggccgctcccagcgtgttcatcacccacctagcgacgagcagagaagtccggcacagc
    ctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtagaaggtg
    gacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacaacaa
    ggactccacctacagcctgaacaacaccctgacactgagcaaggccgactacgagaag
    cacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaaaag
    cttcaaccggggcgagtgt
    Binding Protein 53 Amino Acid Sequences
    Heavy chain A Qvqlqesgpglvkpsqtlsltctvsgfslsdygvhwvrqppgkglewlgviwagggt SEQ ID
    nynpslksrktiskdtsknqvslklssvtaadtavyycardkgysyyysmdywgqgtt NO: 470
    vtvssastkgpsvfplapcsrstsestaalgclvkdyfpepvtvswnsgaltsgvhtfpav
    lqssglyslssvvtvpssslgtktytcnvdhkpsntkvdkrveskygppcppcpapefl
    ggpsvflfppkpkdtlmisrtpevtcvvvdvsqedpevqfnwyvdgvevhnaktkp
    reeqfnstyrvvsvltvlhqdwlngkeykckvsnkglpssiektiskakgqprepqvyt
    lppcqeemtknqvslwclvkgfypsdiavewesngqpennykttppvldsdgsffly
    skltvdksrwqegnvfscsvmhealhnhytqkslslslgk
    Light chain A Divltqspaslavspgqratitcrasesveyyvtslmqwyqqkpgqppkllifaasnve SEQ ID
    sgvparfsgsgsgtdftltinpveandvanyycqqsrkvpytfgqgtkleikrtvaapsv NO: 471
    fifppsdeqlksgtasvvcllnnfypreakvqwkydnalqsgnsqesvteqdskdstys
    lsstltskadyekhkvyacevthqglsspvtksfnrgec
    Heavy chain B Qvqlvesgggvvqpgrslrlscaasgftftkawmhwyrqapgkqlewvaqi SEQ ID
    kdksnsyatyyadsvkgrftisrddskntlykynnsiraedtavyycrgvyyals NO: 472
    pfdywgqgtlytysssqvhitqsgpevrkpgtsykysckapgntiktydlhwv
    rsvpg1glqwmgwishegdkkvivertkakvtidwdrstntayiqlsgitsgd
    tavyycakgskhrirdyalydddgainwaydvdylsniefwgqgtaytyssrt
    astkgpsvfplapcsrstsestaalgelykdyfpepmswnsgaitsgvhtfpay
    lgssglyslssyytypssslgtktytcnvdhkpsntkvdkrveskygppcppcp
    apeflggpsvfifppkpkdtimisapeytcyvydvsqedpevqfimyydgy
    evhnaktkpreeqfnstyrvvsvitvlhqdvvingkeykekvsnkgipssiekti
    skakgqprepqvcttppscieemtknqvstscavkgfypsdiavewesnme
    nnykttppvldsdgsfflvsldtvdksrwqegnvfscsvrnhealhnhytqksls
    lslgk
    Light chain B Dfvltqsphslsvtpgesasiscksshslihgdmnylawyvqkpgrspqllassras SEQ ID
    gvpdrfsgsgsdkdfilkisrvetedvgtyycatqgrespvirtfgqtttkvdikgqpkaap NO: 473
    divmtqtplsisvtpggpasisckssgslvlitmantylswykikpggspcisitykvsnrf
    sgvpdrfsgsgsgtdfilkisneacdvgvyycgqgttpftfgsgtkveiktkgpsrtv
    aapsvfifppsdeqlksgtasvvcllnnfypreakvqwkvdnalgsgnsqcsvtecids
    kdstystssthiskadyckhkvyaccvthqgisspvtksfnrgec
    Binding Protein 53 Nucleotide Sequences
    Heavy chain A caggtgcagctgcaggaatctggccctggcctcgtgaagcctagccagaccctgagcct SEQ ID
    gacctgtaccgtgtccggcttcagcctgagcgactacggcgtgcactgggtgcgccagcc NO: 474
    acctggaaaaggcctggaatggagggcgtgatctgggctggcggaggcaccaactaca
    accccagcctgaagtccagaaagaccatcagcaaggacaccagcaagaaccaggtgtc
    cctgaagctgagcagcgtgacagccaccgataccgccgtatactactacgccagagaca
    agggctacagctactactacagcatggactactggggccagggcaccaccgtgaccgtg
    tcatccgcgtcgaccaagggcccctcggtgttccctctggccccttgcagcagaagcacc
    agcgaatctacagccgccctgggctgcctcgtgaaggactactttcccgagcccgtgacc
    gtgtcctggaactctggcgctctgacaagcggcgtgcacacctttccagccgtgctccaga
    gcagcggcctgtactctctgagcagcgtcgtgacagtgcccagcagcagcctgggcacc
    aagacctacacctgtaacgtggaccacaagcccagcaacaccaaggtggacaagcggg
    tggaatctaagtacggccctccctgccctccttacccaacccctgaatttagggcggacc
    ctccgtgttcctgttccccccaaagcccaaggacaccagatgatcaaccggacccccga
    agtgacctgcgtggtggtggatgtgtcccaggaagatcccgaggtgcagttcaattggtac
    gtggacggcgtggaagtgcacaacgccaagaccaagcccagagaggaacagttcaaca
    gcacctaccgggtggtgtccgtgctgaccgtgctgcaccaggactggctgaacggcaaa
    gagtacaagtgcaaggtgtccaacaagggcctgcccagctccatcgagaaaaccatcag
    caaggccaagggccaaccccacgagcctcaaatgtataccctaccccatgccaggaaa
    agatgaccaagaaccaggtgtccctgtggtgtctcgtgaaaggcttctaccccagcgacat
    tgccgtggaatgggagagcaacggccagcccgagaacaactacaagaccaccccccct
    gtgctggacagcgacggctcattcttcctgtactccaagctgaccgtggacaagagccggt
    ggcaggaaggcaacgtgttcagctgctccgtgatgcacgaggccctgcacaaccactac
    acccagaagtccctgtctctgtccctgggcaag
    Light chain A gacatcgtgatgacccagacccccctgagcctgagcgtgacacaggacagcctgccag SEQ ID
    catcagctgcaaaagcagccagagcctggtgcacaacaacaccaacacctacctgagct NO: 475
    ggtatctgcagaagcccggccagaacccccagtccagatctacaagatgtccaacagat
    tcagcggcgtgcccaacagattaccggcagcggctaggcaccgacttcaccctaaaaa
    tcagccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtac
    cccttcacctttggcagcggcaccaaggtggaaatcaaggacaaaacccataccgacttc
    gtgctgacccagagccctcacagcctgagcgtgacacctggcgagagcgccagcatca
    gctgcaagagcagccactccctgatccacggcgaccggaacaactacctggcttggtac
    gtgcagaagcccggcagatccccccagctgctgatctacctggccagcagcagagcca
    gcggcgtgcccgatagattttaggcagcggcagcgacaaggacttcaccctgaagatca
    gccgggtggaaaccgaggacgtaagcacctactactgtatgcaggacaaagagagccc
    ctggacctttggccagggcaccaaggtggacatcaaggataagacccatacccgtacggt
    ggccgctcccagcgtgttcatcacccacctagcgacgagcagagaagtccggcacagc
    ctctgtcgtgtgcctgctgaacaacttctacccccgcgaggccaaagtgcagtagaaggtg
    gacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacaacaa
    ggactccacctacagcctgaacaacaccctgacactgagcaaggccgactacgagaag
    cacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaaaag
    cttcaaccggggcgagtgt
    Heavy chain B caggtgcagctggtgcagtctggcgccgaggtcgtgaaacctggcgcctctgtgaaggt SEQ ID
    gtcctgcaaggccagcggctacacctttaccagctactacatccactgggtgcgccaggc NO: 476
    ccctggacagggactggaatggatcggcagcatctaccccggcaacgtgaacaccaact
    acgcccagaagttccagggcagagccaccctgaccgtggacaccagcatcagcaccgc
    ctacatggaactgagccggctgagaagcgacgacaccgccgtgtactactgcacccggt
    cccactacggcctggattggaacttcgacgtgtggggcaagggcaccaccgtgacagtg
    tctagcagccaggtgcagctggtggaatctggcggcggagtggtgcagcctggcagaa
    gcctgagactgagctgtgccgccagcggcttcaccttcaccaaggcctggatgcactggg
    tgcgccaggcccctggaaagcagctggaatgggtggcccagatcaaggacaagagcaa
    cagctacgccacctactacgccgacagcgtgaagggccggttcaccatcagccgggac
    gacagcaagaacaccctgtacctgcagatgaacagcctgcgggccgaggacaccgccg
    tgtactactgtcggggcgtgtactatgccctgagccccttcgattactggggccagggaac
    cctcgtgaccgtgtctagtcggaccgccagcacaaagggcccatcggtgttccctctggc
    cccttgcagcagaagcaccagcgaatctacagccgccctgggctgcctcgtgaaggact
    actttcccgagcccgtgaccgtgtcctggaactctggcgctctgacaagcggcgtgcaca
    cctttccagccgtgctccagagcagcggcctgtactctctgagcagcgtcgtgacagtgcc
    cagcagcagcctgggcaccaagacctacacctgtaacgtggaccacaagcccagcaac
    accaaggtggacaagcgggtggaatctaagtacggccctccctgccctccttgcccagcc
    cctgaatttctgggcggaccctccgtgttcctgttccccccaaagcccaaggacaccctga
    tgatcaaccggacccccgaagtgacctgcgtggtggtggatgtgtcccaggaagatccc
    gaggtgcagttcaattggtacgtggacggcgtggaagtgcacaacgccaagaccaagcc
    cagagaggaacagttcaacagcacctaccgggtggtgtccgtgctgaccgtgctgcacc
    aggactggctgaacggcaaagagtacaagtgcaaggtgtccaacaagggcctgcccag
    ctccatcgagaaaaccatcagcaaggccaagggccagccccgcgagcctcaagtgtgta
    ccctgccccctagccaggaagagatgaccaagaaccaagtgtccctgagctgtgccgtg
    aaaggcttctaccccagcgacattgccgtggaatgggagagcaacggccagcccgaga
    acaactacaagaccaccccccctgtgctggacaacgacggctcattcttcctggtatccaa
    gctgaccgtggacaagagccggtggcaggaaggcaacgtgttcagctgctccgtgatgc
    acgaggccctgcacaaccactacacccagaagtccctgtctctgtccctgggcaag
    Light chain B gacttcgtgagacccaaagccctcacagcctgagcatgacacctggcgagagcgccag SEQ ID
    catcagctgcaaaagcagccactccctgatccacggcgaccgaaacaactacctagcttg NO: 477
    gtacgtgcagaagcccggcagatccccccagctgctgatctacctggccagcagcagag
    ccagcggcgtgcccgatagattttctggcagcggcagcgacaaggacttcaccctgaag
    atcagccgggtggaaaccgaggacgtgggcacctactactgtatgcagggcagagaga
    gcccctggacctttagccagggcaccaagatggacatcaagaacaaaacccataccgac
    atcgtgatgacccagacccccagagcctgaacgtgacacctgaacagcctaccagcat
    cagctgcaagagcagccagagcctggtacacaacaacgccaacacctacctgagctggt
    atctgcagaagcccggccagagcccccagtccctgatctacaaggtgtccaacagattca
    gcggcgtgcccgacagattctccggcagcggctctggcaccgacttcaccctgaagatca
    gccgggtggaagccgaggacgtgggcgtgtactattgtggccagggcacccagtaccc
    cttcacctttggcagcggcaccaaggtggaaatcaaggataagacccatacccgtacggt
    ggccactcccagcgtgttcatcttcccacctaacgacgagcagctgaagtccgacacagc
    ctctgtcgtgtgcctgctgaacaacttctacccccgcgagaccaaagtacagtggaagatg
    gacaacgccctgcagagcggcaacagccaggaaagcgtgaccgagcaggacagcaa
    ggactccacctacagcctgagcagcaccctgacactgagcaaggccgactacgagaag
    cacaaggtgtacgcctgcgaagtgacccaccagggcctgtctagccccgtgaccaagag
    cttcaaccggggcgagtgt
  • TABLE A
    CDR sequences of binding proteins
    Ab CDRH1 CDRH2 CDRH3 CDRL1 CDRL2 CDRL3
    CD4BS ″a″ dctln wikprggavnyarplqg gkncdynwdfeh rtsqyglsa sgstraa qqyef
    (SEQ ID NO: 248) (SEQ ID NO: 249) (SEQ ID NO: 250) (SEQ ID NO: 266) (SEQ ID NO: 267) (SEQ ID NO: 268)
    CD4BS ″b″ GYTFTAHI IKPQYGAV drsygdsswalda QGVGSD HTS qvlqf
    (SEQ ID NO: 251) (SEQ ID NO: 252) (SEQ ID NO: 253) (SEQ ID NO: 269) (SEQ ID NO: 270) (SEQ ID NO: 271)
    MPER gfdfdnaw itgpggwssv tgkyydfwsgyppgeeyfqd rgdslrshyas gknnrps ssrdksgsrlsv
    (SEQ ID NO: 254) (SEQ ID NO: 255) (SEQ ID NO: 256) (SEQ ID NO: 272) (SEQ ID NO: 273) (SEQ ID NO: 274)
    V1/V2 dir.  GNTLKTYD ISHEGDKK cakgskhrlrdyalyddd hslihgdrnny las cmqgrespwtf
    ″a″ (SEQ ID NO: 257) (SEQ ID NO: 258) galnwavdvdylsnlefw (SEQ ID NO: 275) (SEQ ID NO: 276) (SEQ ID NO: 277)
    (SEQ ID NO: 259)
    V3 dir. SGASISDSY VHKSGDT ARTLHGRRIYGIVAFNEWF SLGSRA NNQ HIWDSRVPTKWV
    (SEQ ID NO: 260) (SEQ ID NO: 261) TYFYMDV (SEQ ID NO: 278) (SEQ ID NO: 279) (SEQ ID NO: 280)
    (SEQ ID NO: 262)
    V1/V dir. QFRFDGYG ISHDGIKK CAKDLREDECEEWWSDYY TSNIGNNF ETD atwaaslssarv
    ″b″ (SEQ ID NO: 263) (SEQ ID NO: 264) DFGKQLPCAKSRGGLVGIA (SEQ ID NO: 281) (SEQ ID NO: 282) (SEQ ID NO: 283)
    DNW
    (SEQ ID NO: 265)
    Ab CDRH1 CDRH2 CDRH3 CDRL1 CDRL2 CDRL3
    Anti-CD28 GYTFTSYY IYPGNVNT trshygldwnfdv QNIYVW KAS qqgqtypyt
    (SEQ ID NO: 479) (SEQ ID NO: 480) (SEQ ID NO: 481) (SEQ ID NO: 488) (SEQ ID NO: 489) (SEQ ID NO: 490)
    Anti-CD28 GFSLSDYG IWAGGGT ardkgysyyysmd ESVEYYVTSL AAS qqsrkvpyt
    (SEQ ID NO: 482) (SEQ ID NO: 483) (SEQ ID NO: 484) (SEQ ID NO: 491) (SEQ ID NO: 492) (SEQ ID NO: 493)
    Anti-CD3 GFTFTKAW IKDKSNS rgvyyalspfdy QSLVHNNANTY KVS gqgtqyp
    (SEQ ID NO: 485) (SEQ ID NO: 486) (SEQ ID NO: 487) (SEQ ID NO: 494) (SEQ ID NO: 495) (SEQ ID NO: 496)
  • TABLE B
    CDR sequences of parental antibodies
    Ab CDR_H1 CDR_H2 CDR_H3 CDR_L1 CDR_L2 CDR_L3
    CD4BS ″a″ DCTLN LKPRGGAVNYARP GKNCDYNWDFEH RTSQYGLSA SGSTRAA QQYEF
    (SEQ ID NO: 248) LQ (SEQ ID NO: 250) (SEQ ID NO: 266) (SEQ ID NO: 267) (SEQ ID NO: 268)
    (SEQ ID NO: 497)
    CD4BS ″b″ GYTFTAHI IKPQYGAV DRSYGDSSWALDA QGVGSD HTS QVLQF
    (SEQ ID NO: 251) (SEQ ID NO: 252) (SEQ ID NO: 253) (SEQ ID NO: 269) (SEQ ID NO: 270) (SEQ ID NO: 271)
    MPER GFDFDNAW ITGPGGWSSV TGKYYDFWSGYPPGEEYFQ SLRSHY GKN SSRDKSGSRLSV
    (SEQ ID NO: 254) (SEQ ID NO: 255) D (SEQ ID NO: 500) (SEQ ID NO: 501) (SEQ ID NO: 274)
    (SEQ ID NO: 256)
    MPER_100W GFDFDNAW ITGPGGWSSV TGKYYDFWWGYPPGEEYF SLRSHY GKN SSRDKSGSRLSV
    (SEQ ID NO: 254) (SEQ ID NO: 255) QD (SEQ ID NO: 500) (SEQ ID NO: 501) (SEQ ID NO: 274)
    (SEQ ID NO: 259)
    V1/V2 GNTLKTYD ISHEGDKK CAKGSKHRLRDYALYDDD HSLIHGDRNNY LAS CMQGRESPWTF
    directed ″a″ (SEQ ID NO: 257) (SEQ ID NO: 258) GALNWAVDVDYLSNLEFW (SEQ ID NO: 275) (SEQ ID NO: 276) (SEQ ID NO: 277)
    (SEQ ID NO: 259)
    V1/V2 QFRFDGYG ISHDGIKK CAKDLREDECEEWWSDYY TSNIGNNF ETD ATWAASLSSAR
    directed ″b″ (SEQ ID NO: 263) (SEQ ID NO: 264) DFGKQLPCAKSRGGLVGIA (SEQ ID NO: 281) (SEQ ID NO: 282) V
    DNW (SEQ ID NO: 283)
    (SEQ ID NO: 265)
    V3 GASISDSY VHKSGDT ARTLHGRRIYGIVAFNEWF SLGSRA NNQ HIWDSRVPTKW
    directed (SEQ ID NO: 499) (SEQ ID NO: 261) TYFYMDV (SEQ ID NO: 278) (SEQ ID NO: 279) V
    (SEQ ID NO: 262) (SEQ ID NO: 280)
    CD28 GYTFTSYY IYPGNVNT TRSHYGLDWNFDV QNIYVW KAS QQGQTYPYT
    (SEQ ID NO: 479) (SEQ ID NO: 480) (SEQ ID NO: 481) (SEQ ID NO: 488) (SEQ ID NO: 489) (SEQ ID NO: 490)
    CD28_2 GFSLSDYG IWAGGGT ARDKGYSYYYSMD ESVEYYVTSL AAS QQSRKVPYT
    (SEQ ID NO: 482) (SEQ ID NO: 483) (SEQ ID NO: 484) (SEQ ID NO: 491) (SEQ ID NO: 492) (SEQ ID NO: 493)
    CD3 GFTFTKAW IKDKSNS RGVYYALSPFDY QSLVHNNANTY KVS GQGTQYP
    (SEQ ID NO: 485) (SEQ ID NO: 486) (SEQ ID NO: 487) (SEQ ID NO: 494) (SEQ ID NO: 495) (SEQ ID NO: 496)
  • TABLE C
    Variable domain sequences of parental antibodies
    Ab Name VH VL
    CD4BS ″a″ QVQLVQSGGQMKKPGESMRISCRASGYEFIDCTLNWIRLAP EIVLTQSPGTLSLSPGETAIISCRTSQYGSLAWYQQ
    GKRPEWMGWLKPRGGAVNYARPLQGRVTMTRDVYSDTAF RPGQAPRLVIYSGSTRAAGIPDRFSGSRWGPDYNL
    LELRSLTVDDTAVYFCTRGKNCDYNWDFEHWGRGTPVIV TISNLESGDFGVYYCQQYEFFGQGTKVQVDIK
    S (SEQ ID NO: 512)
    (SEQ ID NO: 502)
    CD4BS ″b″ RAHLVQSGTAMKKPGASVRVSCQTGYTFTAHILFWFRQAP YIHVTQSPSSLSVSIGDRVTINCQTSQGVGSDLHW
    GRGLEWVGWIKPQYGAVNFGGGFRDRVTLTRDVYREIAY YQHKPGRAPKLLIHHTSSVEDGVPSRFSGSGFHTS
    MDIRGLKPDDTAVYYCARDRSYGDSSWALDAWGQGTTVV FNLTISDLQADDIATYYCQVLQFFGRGSRLHIK
    VSA (SEQ ID NO: 513)
    (SEQ ID NO: 503)
    CD4BS ″b″ RAHLVQSGTAMKKPGASVRVSCQTSGYTFTAHILFWFRQAP YIHVTQSPSSLSVSIGDRVTINCQTSQGVGSDLHW
    (Δglycan) GRGLEWVGWIKPQYGAVNFGGGFRDRVTLTRDVYREIAY YQHKPGRAPKLLIHHTSSVEDGVPSRFSGSGFHTS
    MDIRGLKPDDTAVYYCARDRSYGDSSWALDAWGQGTTVV F
    Figure US20190054182A1-20190221-P00093
    LTISDLQADDIATYYCQVLQFFGRGSRLHIK
    VSA (SEQ ID NO: 514)
    (SEQ ID NO: 503)
    CD4BS ″b″ RAHLVQSGTAMKKPGASVRVSCQTSGYTFTAHILFWFRQAP YIHVTQSPSSLSVSIGDRVTINCQTSQGVGSDLHW
    (Δisomerization GRGLEWVGWIKPQYGAVNFGGGFRDRVTLTRDVYREIAY YQHKPGRAPKLLIHHTSSVE
    Figure US20190054182A1-20190221-P00094
    GVPSRFSGSGFHTS
    D55E) MDIRGLKPDDTAVYYCARDRSYGDSSWALDAWGQGTTVV FNLTISDLQADDIATYYCQVLQFFGRGSRLHIK
    VSA (SEQ ID NO: 515)
    (SEQ ID NO: 503)
    CD4BS ″b″ RAHLVQSGTAMKKPGASVRVSCQTSGYTFTAHILFWFRQAP YIHVTQSPSSLSVSIGDRVTINCQTSQGVGSDLWH
    (Δisomerization GRGLEWVGWIKPQYGAVNFGGGFRDRVTLTRDVYREIAY YQHKPGRAPKLLIHHTSSVED
    Figure US20190054182A1-20190221-P00095
    VPSRFSGSGFHTS
    G56A) MDIRGLKPDDTAVYYCARDRSYGDSSWALDAWGQGTTVV FNLTISDLQADDIATYYCQVLQFFGRGSRLHIK
    VSA (SEQ ID NO: 516)
    (SEQ ID NO: 503)
    CD4BS ″b″ RAHLVQSGTAMKKPGASVRVSCQTSGYTFTAHILFWFRQAP YIHVTQSPSSLSVSIGDRVTINCQTSQGVGSDLHW
    (Δglycan/ GRGLEWVGWIKPQYGAVNFGGGFRDRVTLTRDVYREIAY YQHKPGRAPKLLIHHTSSVE
    Figure US20190054182A1-20190221-P00096
    GVPSRFSGSGFHTS
    Δisomerization MDIRGLKPDDTAVYYCARDRSYGDSSWALDAWGQGTTVV F
    Figure US20190054182A1-20190221-P00097
    LTISDLQADDIATYYCQVLQFFGRGSRLHIK
    D55E) VSA (SEQ ID NO: 517)
    (SEQ ID NO: 503)
    MPER EVRLVESGGGLVKPGGSLRLSCSASGFDFDNAWMTWVRQP ASELTQDPAVSVALKQTVTITCRGDSLRSHYASW
    PGKGLEWVGRITGPGEGWSVDYAESVKGRFTISRDNTKNTL YQKKPGQAPVLLFYGKNNRPSGIPDRFSGSASGN
    YLEMNNVRTEDTGYYFCARTGKYYDFWSGYPPGEEYFQD RASLTITGAQAEDEADYYCSSRDKSGSRLSVFGG
    WGQGTLVIVSS GTKLTVL
    (SEQ ID NO: 504) (SEQ ID NO: 518)
    MPER_100W EVRLVESGGGLVKPGGSLRLSCSASGFDFDNAWMTWVRQP ASELTQDPAVSVALKQTVTITCRGDSLRSHYASW
    PGKGLEWVGRITGPGEGWSVDYAESVKGRFTISRDNTKNTL YQKKPGQAPVLLFYGKNNRPSGIPDRFSGSASGN
    YLEMNNVRTEDTGYYFCARTGKYYDFW
    Figure US20190054182A1-20190221-P00098
    GYPPGEEYFQD
    RASLTITGAQAEDEADYYCSSRDKSGSRLSVFGG
    WGQGTLVIVSS GTKLTVL
    (SEQ ID NO: 505) (SEQ ID NO: 518)
    V1/V2 QVHLTQSGPEVRKPGTSVKVSCKAPGNTLKTYDLHWVRSV DFVLTQSPHSLSVTPGESASISCKSSHSLIHGDRNN
    directed ″a″ PGQGLQWMGWISHEGDKKVIVERFKAKVTIDWDRSTNTAY YLAWYVQKPGRSPQLLIYLASSRASGVPDRFSGS
    LQLSGLTSGDTAVYYCAKGSKHRLRDYALYDDDGALNWA GSDKDFTLKISRVETEDVGTYYCMQGRESPWTFG
    VDVDYLSNLEFWGQGTAVTVSS QGTKVDIK
    (SEQ ID NO: 506) (SEQ ID NO: 519)
    V1/V2 QVQLVESGGGVVQPGTSLRLSCAASQFRFGDYGMHWVRQ QSVLTQPPSVSAAPGQKVTISCSGNTSNIGNNFVS
    directed ″b″ APGKGLEWVASISHDGIKKYHAEKVWGRFTISRDNSKNTLY WYQQRPGRAPQLLIYETDKRPSGIPDRFSASKSGT
    LQMNSLRPEDTALYYCAKDLREDECEEWWSDYYDFGKQLP SGTLAITGLQTGDEADYYCATWAASLSSARVFGT
    CAKSRGGLVGIADNWGQGTMVTVSS GTKVIVL
    (SEQ ID NO: 507) (SEQ ID NO: 520)
    V3 QMQLQESGPGLVKPSETLSLTCSVSGASISDSYWSWIRRSPG SDISVAPGETARISCGEKSLGSRAVQWYQHRAGQ
    directed KGLEWIGYVHKSGDTNYSPSLKSRVNLSLDTSKNQVSLSLV APSLIIYNNQDRPSGIPERFSGSPDSPFGTTATLTIT
    AATAADSGKYYCARTLHGRRIYGIVAFNEWFTYFYMDVW SVEAGDEADYYCHIWDSRVPTKWVFGGGTTLTV
    GNGTQVTVSS G
    (SEQ ID NO: 508) (SEQ ID NO: 521)
    CD28 QVQLVQSGAEVVKPGASVKVSCKASGYTFTSYYIHWVRQA DIQMTQSPSSLSASVGDRVTITCQASQNIYVWLN
    PGQGLEWIGSIYPGNVNTNYAQKRQGRATLTVDTSISTAYM WYQQKPGKAPKLLIYKASNLHTGVPSRFSGSGSG
    ELSRLRSDDTAVYYCTRSHYGLDWNFDVWGKGTTVTVSS TDFTLTISSLQPEIATYYCCQQGQTYPYTFGQGTK
    (SEQ ID NO: 509) LEIK
    (SEQ ID NO: 522)
    CD28_2 QVQLQESGPGLVKPSQTLSLTCTVSGFSLSDYGVHWVRQPP DIVLTTQSPASLAVSPGQRATITCRASESVEYYVTS
    GKGLEWLGVIWAGGGTNYNPSLKSRKTISKDTSKNQVSLKL LMQWYQQKPGQPPKLLIFAASNVESGVPARFSGS
    SSVTAADTAVYYCARDKGYSYYYSMDYWGQGTTVTVSS GSGTDFTLTINPVEANDVANYYCQQSRKVPYTFG
    (SEQ ID NO: 510) QGTKLEIK
    (SEQ ID NO: 523)
    CD3 QVQLVESGGGVVQPGRSLRLSCAASGFTFTKAWMHWVRQ DIVMTQTPLSLSVTPGQPASISCKSSQSLVHNNAN
    APGKQLEWVAQIKDKSNSYATYYADSVKGRFTISRDDSKNT TYLSWYLQKPGQSPQSLIYKVSNRFSGVPDRFSGS
    LYLQMNSLRAEDTAVYYCRGVYYALSPFDYWGQGTLVTV GSGTDFTLKISRVEAEDVGVYYCGQGTQYPFTFG
    SS SGTKVEIK
    (SEQ ID NO: 511) (SEQ ID NO: 524)
    CDR sequences are underlined.
    Variable domain modifications are shown in bold and italicized.

Claims (139)

What is claimed is:
1. A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

VL2-L1-VL1-L2-CL  [I];
a second polypeptide chain comprises a structure represented by the formula:

VH1-L3-VH2-L4-CH1  [II];
a third polypeptide chain comprises a structure represented by the formula:

VH3-CH1  [III],
and a fourth polypeptide chain comprises a structure represented by the formula:

VL3-CL  [IV];
wherein
VL1 is a first immunoglobulin light chain variable domain;
VL2 is a second immunoglobulin light chain variable domain;
VL3 is a third immunoglobulin light chain variable domain;
VH1 is a first immunoglobulin heavy chain variable domain;
VH2 is a second immunoglobulin heavy chain variable domain;
VH3 is a third immunoglobulin heavy chain variable domain;
CL is an immunoglobulin light chain constant domain;
CH1 is an immunoglobulin CH1 heavy chain constant domain; and
L1, L2, L3, and L4 are amino acid linkers;
and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
2. A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

VL2-L1-VL1-L2-CL  [I]
and a second polypeptide chain comprises a structure represented by the formula:

VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II]

and a third polypeptide chain comprises a structure represented by the formula:

VH3-CH1-hinge-CH2-CH3  [III]
and a fourth polypeptide chain comprises a structure represented by the formula:

VL3-CL  [IV]
wherein:
VL1 is a first immunoglobulin light chain variable domain;
VL2 is a second immunoglobulin light chain variable domain;
VL3 is a third immunoglobulin light chain variable domain;
VH1 is a first immunoglobulin heavy chain variable domain;
VH2 is a second immunoglobulin heavy chain variable domain;
VH3 is a third immunoglobulin heavy chain variable domain;
CL is an immunoglobulin light chain constant domain;
CH1 is an immunoglobulin CH1 heavy chain constant domain;
CH2 is an immunoglobulin CH2 heavy chain constant domain;
CH3 is an immunoglobulin CH3 heavy chain constant domain;
hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
L1, L2, L3 and L4 are amino acid linkers;
and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
3. The binding protein of claim 1 or claim 2, wherein the one or more HIV target protein is selected from the group consisting of glycoprotein 120, glycoprotein 41 and glycoprotein 160.
4. The binding protein of claim 1 or claim 2, wherein the binding protein is trispecific and capable of specifically binding three different epitopes on a single HIV target protein.
5. The binding protein of claim 1 or claim 2, wherein the binding protein is trispecific and capable of specifically binding two different epitopes on a first HIV target protein, and one epitope on a second HIV target protein, wherein the first and second HIV target proteins are different.
6. The binding protein of claim 1 or claim 2, wherein the binding protein is trispecific and capable of specifically binding three different antigen targets.
7. The binding protein of claim 1 or claim 2, wherein the binding protein is capable of inhibiting the function of one or more HIV target proteins.
8. The binding protein of any one of claims 1-7, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
9. The binding protein of any one of claims 1-7, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
10. The binding protein of any one of claims 1-9, wherein VL1 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
11. The binding protein of any one of claims 1-10, wherein VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
12. The binding protein of any one of claims 1-10, wherein VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
13. The binding protein of any one of claims 1-12, wherein VL2 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
14. The binding protein of any one of claims 1-13, wherein VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; or a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively.
15. The binding protein of any one of claims 1-13, wherein VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
16. The binding protein of any one of claims 1-15, wherein VL3 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, and 521.
17. The binding protein of any one of claims 1-16, wherein VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
18. The binding protein of any one of claims 1-16, wherein VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
19. The binding protein of any one of claims 1-18, wherein VH1 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
20. The binding protein of any one of claims 1-19, wherein VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
21. The binding protein of any one of claims 1-19, wherein VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
22. The binding protein of any one of claims 1-21, wherein VH2 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
23. The binding protein of any one of claims 1-22, wherein VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; or a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively.
24. The binding protein of any one of claims 1-22, wherein VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
25. The binding protein of any one of claims 1-24, wherein VH3 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, and 508.
26. The binding protein of any one of claims 1-25, wherein VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 266, a CDR-L2 comprising the sequence of SEQ ID NO: 267, and a CDR-L3 comprising the sequence of SEQ ID NO: 268; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a CDR-H3 comprising the sequence of SEQ ID NO: 256; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 257, a CDR-H2 comprising the sequence of SEQ ID NO: 258, and a CDR-H3 comprising the sequence of SEQ ID NO: 259; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 248, a CDR-H2 comprising the sequence of SEQ ID NO: 497, and a CDR-H3 comprising the sequence of SEQ ID NO: 250.
27. The binding protein of any one of claims 1-25, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 512, VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 502.
28. The binding protein of any one of claims 1-27, wherein VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 512; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 502.
29. The binding protein of any one of claims 1-25, wherein VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a CDR-H3 comprising the sequence of SEQ ID NO: 256; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 257, a CDR-H2 comprising the sequence of SEQ ID NO: 258, and a CDR-H3 comprising the sequence of SEQ ID NO: 259; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253.
30. The binding protein of any one of claims 1-25, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503.
31. The binding protein of any one of claims 1-25 and 29-30, wherein VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
32. The binding protein of any one of claims 1-25, wherein VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 275, a CDR-L2 comprising the sequence of SEQ ID NO: 276, and a CDR-L3 comprising the sequence of SEQ ID NO: 277; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 500, a CDR-L2 comprising the sequence of SEQ ID NO: 501, and a CDR-L3 comprising the sequence of SEQ ID NO: 274; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 257, a CDR-H2 comprising the sequence of SEQ ID NO: 258, and a CDR-H3 comprising the sequence of SEQ ID NO: 259; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 254, a CDR-H2 comprising the sequence of SEQ ID NO: 255, and a CDR-H3 comprising the sequence of SEQ ID NO: 256; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253.
33. The binding protein of any one of claims 1-25, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 519; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 518; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 506; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 504; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503.
34. The binding protein of any one of claims 1-25 and 32-33, wherein VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 519; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 518; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513, VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 506; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 504; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
35. The binding protein of claim 1, wherein the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
36. The binding protein of claim 1, wherein the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
37. The binding protein of claim 1, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
38. The binding protein of claim 1, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
39. The binding protein of claim 1, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH1 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
40. The binding protein of claim 2, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
41. The binding protein of claim 2, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
42. The binding protein of claim 2, wherein the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
43. The binding protein of claim 1 or claim 2, wherein at least one of L1, L2, L3, or L4 is independently 0 amino acids in length.
44. The binding protein of claim 1 or claim 2, wherein L1, L2, L3, or L4 are each independently at least one amino acid in length.
45. The binding protein of any one of claims 1-44, wherein L1 comprises Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
46. A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

VL2-L1-VL1-L2-CL  [I]
and a second polypeptide chain comprises a structure represented by the formula:

VH1-L3-VH2-L4-CH1  [II]
and a third polypeptide chain comprises a structure represented by the formula:

VH3-CH1  [III]
and a fourth polypeptide chain comprises a structure represented by the formula:

VL3-CL  [IV]
wherein:
VL1 is a first immunoglobulin light chain variable domain;
VL2 is a second immunoglobulin light chain variable domain;
VL3 is a third immunoglobulin light chain variable domain;
VH1 is a first immunoglobulin heavy chain variable domain;
VH2 is a second immunoglobulin heavy chain variable domain;
VH3 is a third immunoglobulin heavy chain variable domain;
CL is an immunoglobulin light chain constant domain;
CH1 is the immunoglobulin CH1 heavy chain constant domain; and
L1, L2, L3, and L4 are amino acid linkers;
wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
wherein:
(a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
(b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283; and
wherein:
(a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or
(b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
47. A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

VL2-L1-VL1-L2-CL  [I]
and a second polypeptide chain comprises a structure represented by the formula:

VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II]
and a third polypeptide chain comprises a structure represented by the formula:

VH3-CH1-hinge-CH2-CH3  [III]
and a fourth polypeptide chain comprises a structure represented by the formula:

VL3-CL  [IV]
wherein:
VL1 is a first immunoglobulin light chain variable domain;
VL2 is a second immunoglobulin light chain variable domain;
VL3 is a third immunoglobulin light chain variable domain;
VH1 is a first immunoglobulin heavy chain variable domain;
VH2 is a second immunoglobulin heavy chain variable domain;
VH3 is a third immunoglobulin heavy chain variable domain;
CL is an immunoglobulin light chain constant domain;
CH1 is the immunoglobulin CH1 heavy chain constant domain;
CH2 is an immunoglobulin CH2 heavy chain constant domain;
CH3 is an immunoglobulin CH3 heavy chain constant domain;
hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
L1, L2, L3, and L4 are amino acid linkers;
wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
wherein:
(a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 2, 4, 10, 12, 18, 20, 26, 28, 34, 36, 42, 44, 50, 52, 58, 60, 66, 68, 74, 76, 82, 84, 90, 92, 98, 100, 106, 108, 114, 116, 122, 124, 130, 132, 138, 140, 146, 148, 154, 156, 162, 164, 170, 172, 178, 180, 186, 188, 194, 196, 202, 204, 210, 212, 218, 220, 226, 228, 233, 235, 241, 243; or
(b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs:266-283; and
wherein:
(a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 1, 3, 9, 11, 17, 10, 25, 27, 33, 35, 41, 43, 49, 51, 57, 59, 65, 67, 73, 75, 81, 83, 89, 91, 97, 99, 105, 107, 113, 115, 121, 123, 129, 131, 137, 139, 145, 147, 153, 155, 161, 163, 169, 171, 177, 179, 185, 187, 193, 195, 201, 203, 209, 211, 217, 219, 225, 227, 232, 234, 240, 242; or
(b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-265.
48. The binding protein of claim 46, wherein the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
49. The binding protein of claim 46, wherein the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
50. The binding protein of claim 46, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
51. The binding protein of claim 46, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
52. The binding protein of claim 46, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
53. The binding protein of claim 47, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
54. The binding protein of claim 47, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
55. The binding protein of claim 47, wherein the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
56. The binding protein of claim 46 or claim 47, wherein at least one of L1, L2, L3, or L4 is independently 0 amino acids in length.
57. The binding protein of claim 46 or claim 47, wherein L1, L2, L3, or L4 are each independently at least one amino acid in length.
58. The binding protein of any one of claims 46-57, wherein L1 comprises Asp-Lys-Thr-His-Thr (SEQ ID NO: 525).
59. A binding protein comprising a first polypeptide chain, a second polypeptide chain, a third polypeptide chain and a fourth polypeptide chain wherein:
(a) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 4 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 4; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 3 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 3; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 1 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 1; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 2 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 2;
(b) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 12 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 12; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 11 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 11; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 9 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 9; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 10 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 10;
(c) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 20 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 20; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 19 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 19; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 17 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 17; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 18 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 18;
(d) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 28 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 28; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 27 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 27; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 25 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 25; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 26 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 26;
(e) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 36 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 36; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 35 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 35; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 33 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 33; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 34 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 34;
(f) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 44 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 44; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 43 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 43; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 41 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 41; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 42 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 42;
(g) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 52 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 52; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 51 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 51; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 49 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 49; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 50 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 50;
(h) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 60 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 60; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 59 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 59; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 57 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 57; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 58 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 58;
(i) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 68 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 68; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 67 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 67; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 65 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 65; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 66 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 66;
(j) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 76 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 76; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 75 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 75; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 73 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 73; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 74 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 74;
(k) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 84 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 84; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 83 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 83; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 81 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 81; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 82 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 82;
(l) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 92 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:92; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 91 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 91; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 89 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 89; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 90 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 90;
(m) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 100 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 100; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 99 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 99; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 97 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 97; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 98 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 98;
(n) the first polypeptide comprises the amino acid sequence of SEQ ID NO: 108 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 108; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 107 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 107; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 105 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 105; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 106 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 106;
(o) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 116 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 116; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 115 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 115; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 113 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 113; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 114 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 114;
(p) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 124 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 124; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 123 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 123; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 121 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 121; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 122 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 122;
(q) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 132 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 132; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 131 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 131; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 129 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 129; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 130 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 130;
(r) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 140 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 140; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 139 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 139; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 137 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 137; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 138 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 138;
(s) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 148 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 148; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 147 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 147; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 145 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 145; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 146 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 146;
(t) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 156 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 156; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 155 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 155; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 153 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 153; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 154 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 154;
(u) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 164 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 164; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 163 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 163; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 161 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 161; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 162 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 162;
(v) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 172 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 172; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 171 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 171; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 169 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 169; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 170 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 170;
(w) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 180 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 180; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 179 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 179; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 177 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 177; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 178 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 178;
(x) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 188 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 188; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 187 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 187; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 185 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 185; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 186 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 186;
(y) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 196 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 196; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 195 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 195; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 193 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 193; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 194 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 194;
(z) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 204 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 204; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 203 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 203; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 201 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 201; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 202 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 202;
(aa) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 212 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 212; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 211 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 211; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 209 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 209; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 210 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 210;
(bb) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 220 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 220; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 219 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 219; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 217 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 217; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 218 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 218;
(cc) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 228 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 228; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 227 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 227; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 225 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 225; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 226 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 226;
(dd) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 235 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 235; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 234 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 234; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 232 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 232; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 233 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 233; or
(ee) first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 243 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 243; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 242 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 242; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 240 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 240; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 241 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 241.
60. A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins and one or more T cell target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

VL2-L1-VL1-L2-CL  [I];
a second polypeptide chain comprises a structure represented by the formula:

VH1-L3-VH2-L4-CH1  [II];
a third polypeptide chain comprises a structure represented by the formula:

VH3-CH1  [III];
and a fourth polypeptide chain comprises a structure represented by the formula:

VL3-CL  [IV];
wherein
VL1 is a first immunoglobulin light chain variable domain;
VL2 is a second immunoglobulin light chain variable domain;
VL3 is a third immunoglobulin light chain variable domain;
VH1 is a first immunoglobulin heavy chain variable domain;
VH2 is a second immunoglobulin heavy chain variable domain;
VH3 is a third immunoglobulin heavy chain variable domain;
CL is an immunoglobulin light chain constant domain;
CH1 is the immunoglobulin CH1 heavy chain constant domain; and
L1, L2, L3, and L4 are amino acid linkers;
and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
61. A binding protein comprising four polypeptide chains that form three antigen binding sites that specifically bind one or more HIV target proteins and one or more T cell target proteins, wherein a first polypeptide chain comprises a structure represented by the formula:

VL2-L1-VL1-L2-CL  [I];
a second polypeptide chain comprises a structure represented by the formula:

VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II];
a third polypeptide chain comprises a structure represented by the formula:

VH3-CH1-hinge-CH2-CH3  [III];
and a fourth polypeptide chain comprises a structure represented by the formula:

VL3-CL  [IV];
wherein
VL1 is a first immunoglobulin light chain variable domain;
VL2 is a second immunoglobulin light chain variable domain;
VL3 is a third immunoglobulin light chain variable domain;
VH1 is a first immunoglobulin heavy chain variable domain;
VH2 is a second immunoglobulin heavy chain variable domain;
VH3 is a third immunoglobulin heavy chain variable domain;
CL is an immunoglobulin light chain constant domain;
CH1 is the immunoglobulin CH1 heavy chain constant domain;
CH2 is an immunoglobulin CH2 heavy chain constant domain;
CH3 is an immunoglobulin CH3 heavy chain constant domain;
hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
L1, L2, L3, and L4 are amino acid linkers;
and wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair.
62. The binding protein of claim 60 or claim 61, wherein the one or more HIV target proteins are selected from the group consisting of glycoprotein 120, glycoprotein 41 and glycoprotein 160.
63. The binding protein of claim 60 or claim 61, wherein the one or more T cell target proteins are CD3 or CD28.
64. The binding protein of claim 60 or claim 61, wherein the binding protein is trispecific and capable of specifically binding an HIV target protein and two different epitopes on a single T cell target protein.
65. The binding protein of claim 60 or claim 61, wherein the binding protein is trispecific and capable of specifically binding an HIV target protein and two different T cell target proteins.
66. The binding protein of claim 60 or claim 61, wherein the binding protein is trispecific and capable of specifically binding a T cell target protein and two different epitopes on a single HIV target protein.
67. The binding protein of claim 60 or claim 61, wherein the binding protein is trispecific and capable of specifically binding a T cell target protein and two different HIV target proteins.
68. The binding protein of claim 60 or claim 61, wherein the first and second polypeptide chains form two antigen binding sites that specifically target two T cell target proteins, and the third and fourth polypeptide chains form an antigen binding site that specifically binds an HIV target protein.
69. The binding protein of any one of claims 60-68, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively.
70. The binding protein of any one of claims 60-68, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
71. The binding protein of any one of claims 60-70, wherein VL1 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
72. The binding protein of any one of claims 60-71, wherein VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively.
73. The binding protein of any one of claims 60-71, wherein VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
74. The binding protein of any one of claims 60-73, wherein VL2 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
75. The binding protein of any one of claims 60-74, wherein VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 comprising a sequence as set forth in SEQ ID NOs: 266, 267, and 268, respectively; a sequence as set forth in SEQ ID NOs: 269, 270, and 271, respectively; a sequence as set forth in SEQ ID NOs: 500, 501, and 274, respectively; a sequence as set forth in SEQ ID NOs: 275, 276, and 277, respectively; a sequence as set forth in SEQ ID NOs: 281, 282, and 283, respectively; a sequence as set forth in SEQ ID NOs: 278, 279, and 280, respectively; a sequence as set forth in SEQ ID NOs: 488, 489, and 490, respectively; a sequence as set forth in SEQ ID NOs: 491, 492, and 493, respectively; or a sequence as set forth in SEQ ID NOs: 494, 495, and 496, respectively.
76. The binding protein of any one of claims 60-74, wherein VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
77. The binding protein of any one of claims 60-76, wherein VL3 comprises a light chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, and 524.
78. The binding protein of any one of claims 60-77, wherein VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 486, and 487, respectively.
79. The binding protein of any one of claims 60-77, wherein VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
80. The binding protein of any one of claims 60-79, wherein VH1 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
81. The binding protein of any one of claims 60-80, wherein VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 486, and 487, respectively.
82. The binding protein of any one of claims 60-80, wherein VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
83. The binding protein of any one of claims 60-82, wherein VH2 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
84. The binding protein of any one of claims 60-83, wherein VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 comprising a sequence as set forth in SEQ ID NOs: 248, 497, and 250, respectively; a sequence as set forth in SEQ ID NOs: 251, 252, and 253, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 256, respectively; a sequence as set forth in SEQ ID NOs: 254, 255, and 498, respectively; a sequence as set forth in SEQ ID NOs: 257, 258, and 259, respectively; a sequence as set forth in SEQ ID NOs: 263, 264, and 265, respectively; a sequence as set forth in SEQ ID NOs: 499, 261, and 262, respectively; a sequence as set forth in SEQ ID NOs: 479, 480, and 481, respectively; a sequence as set forth in SEQ ID NOs: 482, 483, and 484, respectively; or a sequence as set forth in SEQ ID NOs: 485, 486, and 487, respectively.
85. The binding protein of any one of claims 60-83, wherein VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
86. The binding protein of any one of claims 60-85, wherein VH3 comprises a heavy chain variable domain comprising a sequence selected from the group consisting of SEQ ID NOs: 502, 503, 504, 505, 506, 507, 508, 509, 510, and 511.
87. The binding protein of any one of claims 60-86, wherein VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 488, a CDR-L2 comprising the sequence of SEQ ID NO: 489, and a CDR-L3 comprising the sequence of SEQ ID NO: 490; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 494, a CDR-L2 comprising the sequence of SEQ ID NO: 495, and a CDR-L3 comprising the sequence of SEQ ID NO: 496; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 479, a CDR-H2 comprising the sequence of SEQ ID NO: 480, and a CDR-H3 comprising the sequence of SEQ ID NO: 481; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 485, a CDR-H2 comprising the sequence of SEQ ID NO: 486, and a CDR-H3 comprising the sequence of SEQ ID NO: 487; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253.
88. The binding protein of any one of claims 60-86, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 522; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 524; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 509; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 511; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503.
89. The binding protein of any one of claims 60-88, wherein VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 522; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 524; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 509; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 511; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
90. The binding protein of any one of claims 60-86, wherein VL1 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 494, a CDR-L2 comprising the sequence of SEQ ID NO: 495, and a CDR-L3 comprising the sequence of SEQ ID NO: 496; VL2 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 488, a CDR-L2 comprising the sequence of SEQ ID NO: 489, and a CDR-L3 comprising the sequence of SEQ ID NO: 490; VL3 comprises a CDR-L1 comprising the sequence of SEQ ID NO: 269, a CDR-L2 comprising the sequence of SEQ ID NO: 270, and a CDR-L3 comprising the sequence of SEQ ID NO: 271; VH1 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 485, a CDR-H2 comprising the sequence of SEQ ID NO: 486, and a CDR-H3 comprising the sequence of SEQ ID NO: 487; VH2 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 479, a CDR-H2 comprising the sequence of SEQ ID NO: 480, and a CDR-H3 comprising the sequence of SEQ ID NO: 481; and VH3 comprises a CDR-H1 comprising the sequence of SEQ ID NO: 251, a CDR-H2 comprising the sequence of SEQ ID NO: 252, and a CDR-H3 comprising the sequence of SEQ ID NO: 253.
91. The binding protein of any one of claims 60-86, wherein VL1 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 524; VL2 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 522; VL3 comprises a CDR-L1, CDR-L2, and CDR-L3 of a light chain variable domain comprising the light chain variable domain sequence of SEQ ID NO: 513; VH1 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 511; VH2 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 509; and VH3 comprises a CDR-H1, CDR-H2, and CDR-H3 of a heavy chain variable domain comprising the heavy chain variable domain sequence of SEQ ID NO: 503.
92. The binding protein of any one of claims 60-86 and 90-91, wherein VL1 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 524; VL2 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 522; VL3 comprises a light chain variable domain comprising the sequence of SEQ ID NO: 513; VH1 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 511; VH2 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 509; and VH3 comprises a heavy chain variable domain comprising the sequence of SEQ ID NO: 503.
93. The binding protein of claim 60, wherein the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
94. The binding protein of claim 60, wherein the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
95. The binding protein of claim 60, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
96. The binding protein of claim 60, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
97. The binding protein of claim 60, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
98. The binding protein of claim 61, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
99. The binding protein of claim 61, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
100. The binding protein of claim 61, wherein the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
101. The binding protein of claim 60 or claim 61, wherein at least one of L1, L2, L3, or L4 is independently 0 amino acids in length.
102. The binding protein of claim 60 or claim 61, wherein L1, L2, L3, or L4 are each independently at least one amino acid in length.
103. The binding protein of any one of claims 60-102, wherein L1 is Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
104. A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

VL2-L1-VL1-L2-CL  [I]
and a second polypeptide chain comprises a structure represented by the formula:

VH1-L3-VH2-L4-CH1  [II]
and a third polypeptide chain comprises a structure represented by the formula:

VH3-CH1  [III]
and a fourth polypeptide chain comprises a structure represented by the formula:

VL3-CL  [IV]
wherein:
VL1 is a first immunoglobulin light chain variable domain;
VL2 is a second immunoglobulin light chain variable domain;
VL3 is a third immunoglobulin light chain variable domain;
VH1 is a first immunoglobulin heavy chain variable domain;
VH2 is a second immunoglobulin heavy chain variable domain;
VH3 is a third immunoglobulin heavy chain variable domain;
CL is an immunoglobulin light chain constant domain;
CH1 is the immunoglobulin CH1 heavy chain constant domain; and
L1, L2, L3, and L4 are amino acid linkers;
wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
wherein:
(a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
(b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
wherein:
(a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
(b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
105. A binding protein comprising four polypeptide chains that form three antigen binding sites, wherein a first polypeptide chain comprises a structure represented by the formula:

VL2-L1-VL1-L2-CL  [I]
and a second polypeptide chain comprises a structure represented by the formula:

VH1-L3-VH2-L4-CH1-hinge-CH2-CH3  [II]
and a third polypeptide chain comprises a structure represented by the formula:

VH3-CH1-hinge-CH2-CH3  [III]
and a fourth polypeptide chain comprises a structure represented by the formula:

VL3-CL  [IV]
wherein:
VL1 is a first immunoglobulin light chain variable domain;
VL2 is a second immunoglobulin light chain variable domain;
VL3 is a third immunoglobulin light chain variable domain;
VH1 is a first immunoglobulin heavy chain variable domain;
VH2 is a second immunoglobulin heavy chain variable domain;
VH3 is a third immunoglobulin heavy chain variable domain;
CL is an immunoglobulin light chain constant domain;
CH1 is the immunoglobulin CH1 heavy chain constant domain;
CH2 is an immunoglobulin CH2 heavy chain constant domain;
CH3 is an immunoglobulin CH3 heavy chain constant domain;
hinge is an immunoglobulin hinge region connecting the CH1 and CH2 domains; and
L1, L2, L3, and L4 are amino acid linkers;
wherein the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair;
wherein:
(a) VL1, VL2 and VL3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 303, 305, 311, 313, 319, 321, 327, 329, 335, 337, 343, 345, 351, 353, 359, 361, 367, 369, 375, 377, 383, 385, 391, 393, 399, 401, 407, 409, 415, 417, 423, 425, 431, 433, 439, 441, 447, 449, 455, 457, 463, 465, 471, 473; or
(b) VL1, VL2 and VL3 each independently comprise light chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 266-271, 275-277, 488-496; and
wherein:
(a) VH1, VH2, and VH3 are each independently a variable domain derived from an amino acid sequence as set forth in any one of SEQ ID NOs: 302, 304, 310, 312, 318, 320, 326, 328, 334, 336, 342, 344, 350, 352, 358, 360, 366, 368, 374, 376, 382, 384, 390, 392, 398, 400, 406, 408, 414, 416, 422, 424, 430, 432, 438, 440, 446, 448, 454, 456, 462, 464, 470, 472; or
(b) VH1, VH2, and VH3 each independently comprise heavy chain complementarity determining regions of a variable domain comprising an amino acid sequence as set forth in any one of SEQ ID NOs: 248-253, 257-259, 479-487.
106. The binding protein of claim 104, wherein the second polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
107. The binding protein of claim 104, wherein the third polypeptide chain further comprises an Fc region linked to CH1, the Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains.
108. The binding protein of claim 104, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
109. The binding protein of claim 104, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the first Fc region comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, wherein the second Fc region comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
110. The binding protein of claim 104, wherein the second polypeptide chain further comprises a first Fc region linked to CH1, the first Fc region comprising an immunoglobulin hinge region and CH2 and CH3 immunoglobulin heavy chain constant domains, and wherein the third polypeptide chain further comprises a second Fc region linked to CH1, the second Fc region comprising an immunoglobulin hinge region and CH2 and CH1 immunoglobulin heavy chain constant domains; wherein the first and second Fc regions comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
111. The binding protein of claim 105, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
112. The binding protein of claim 105, wherein the CH3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index, wherein the amino acid substitutions are Y349C, T366S, L368A, and Y407V; and wherein the CH3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index, wherein the amino acid substitutions are S354C and T366W.
113. The binding protein of claim 105, wherein the CH3 domains of the second and the third polypeptide chains both comprise amino acid substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S.
114. The binding protein of claim 104 or claim 105, wherein at least one of L1, L2, L3, or L4 is independently 0 amino acids in length.
115. The binding protein of claim 104 or claim 105, wherein L1, L2, L3, or L4 are each independently at least one amino acid in length.
116. The binding protein of any one of claims 104-115, wherein L1 is Gly-Gln-Pro-Lys-Ala-Ala-Pro (SEQ ID NO: 299).
117. A binding protein comprising a first polypeptide chain, a second polypeptide chain, a third polypeptide chain and a fourth polypeptide chain wherein:
(a) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 305 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 305; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 304 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 304; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 302 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 302; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 303 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 303;
(b) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 313 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 313; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 312 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 312; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 310 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 310; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 311 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 311;
(c) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 321 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 321; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 320 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 320; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 318 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 318; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 319 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 319;
(d) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 329 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 329; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 328 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 328; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 326 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 326; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 327 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 327;
(e) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 337 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 337; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 336 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 336; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 334 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 334; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 335 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 335;
(f) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 345 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 345; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 344 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 344; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 342 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 342; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 343 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 343;
(g) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 353 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 353; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 352 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:352; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 350 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 350; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 351 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 351;
(h) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 361 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 361; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 360 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 360; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 358 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 358; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 359 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 359;
(i) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 369 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 369; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 368 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 368; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 366 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 366; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 367 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 367;
(j) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 377 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 377; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 376 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 376; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 374 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 374; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 375 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 375;
(k) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 385 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 385; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 384 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 384; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 382 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 382; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 383 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 383;
(l) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 393 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 393; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 392 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 392; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 390 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 390; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 391 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 391;
(m) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 401 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 401; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 400 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 400; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 398 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 398; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 399 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 399;
(n) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 409 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 409; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 408 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 408; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 406 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 406; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 407 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 407;
(p) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 417 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 417; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 416 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 416; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 414 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 414; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 415 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 415;
(q) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 425 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 425; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 424 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 424; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 422 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 422; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 423 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 423;
(r) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 433 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO:433; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 432 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 432; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 430 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 430; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 431 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 431;
(s) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 441 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 441; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 440 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 440; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 438 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 438; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 439 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 439;
(t) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 449 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 449; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 448 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 448; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 446 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 446; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 447 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 447,
(u) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 457 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 457; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 456 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 456; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 454 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 454; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 455 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 455;
(v) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 465 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 465; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 464 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 464; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 462 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 462; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 463 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 463; or
(w) the first polypeptide chain comprises the amino acid sequence of SEQ ID NO: 473 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 473; the second polypeptide chain comprises the amino acid sequence of SEQ ID NO: 472 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 472; the third polypeptide chain comprises the amino acid sequence of SEQ ID NO: 470 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 470; and the fourth polypeptide chain comprises the amino acid sequence of SEQ ID NO: 471 or an amino acid sequence that is at least 95% identical to the amino acid sequence of SEQ ID NO: 471.
118. An isolated nucleic acid molecule comprising a nucleotide sequence encoding the binding protein of any one of claims 1-117.
119. An expression vector comprising the nucleic acid molecule of claim 118.
120. An isolated host cell comprising the nucleic acid molecule of claim 118.
121. An isolated host cell comprising the expression vector of claim 119.
122. The isolated host cell of claim 120 or claim 121, wherein the host cell is a mammalian cell or an insect cell.
123. A vector system comprising one or more vectors encoding a first, second, third, and fourth polypeptide chain of a binding protein of any one of claims 1-117.
124. The vector system of claim 123, wherein the vector system comprises a first vector encoding the first polypeptide chain of the binding protein, a second vector encoding the second polypeptide chain of the binding protein, a third vector encoding the third polypeptide chain of the binding protein, and a fourth vector encoding the fourth polypeptide chain of the binding protein.
125. The vector system of claim 123, wherein the vector system comprises a first vector encoding the first and second polypeptide chains of the binding protein, and a second vector encoding the third and fourth polypeptide chains of the binding protein.
126. The vector system of any one of claims 123-125, wherein the one or more vectors are expression vectors.
127. An isolated host cell comprising the vector system of any one of claims 123-126.
128. The isolated host cell of claim 127, wherein the host cell is a mammalian cell or an insect cell.
129. A method of producing a binding protein, the method comprising:
a) culturing a host cell of any one of claims 120-122 and claims 127-128 under conditions such that the host cell expresses the binding protein; and
b) isolating the binding protein from the host cell.
130. A method of preventing and/or treating HIV infection in a patient comprising administering to the patient a therapeutically effective amount of at least one binding protein of any one of claims 1-117.
131. The method of claim 130, wherein the binding protein is co-administered with standard anti-retroviral therapy.
132. The method of claim 130 or claim 131, wherein administration of the at least one binding protein results in the neutralization of one or more HIV virions.
133. The method of any one of claims 130-132, wherein administration of the at least one binding protein results in the elimination of one or more latently and/or chronically HIV-infected cells in the patient.
134. The method of any one of claims 130-133, wherein the patient is a human.
135. The binding protein of any one of claims 1-117 for the prevention or treatment of an HIV infection in a patient.
136. The binding protein of claim 135, wherein the binding protein is co-administered with standard anti-retroviral therapy.
137. The binding protein of claim 135 or claim 136, wherein the binding protein causes the neutralization of one or more HIV virions in the patient.
138. The binding protein of any one of claims 135-137, wherein the binding protein causes the elimination of one or more latently and/or chronically HIV-infected cells in the patient.
139. The binding protein of any one of claims 135-138, wherein the patient is a human.
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