WO2004022752A1 - Smg−1結合タンパク質及びその活性を制御する物質のスクリーニング方法 - Google Patents
Smg−1結合タンパク質及びその活性を制御する物質のスクリーニング方法 Download PDFInfo
- Publication number
- WO2004022752A1 WO2004022752A1 PCT/JP2003/011353 JP0311353W WO2004022752A1 WO 2004022752 A1 WO2004022752 A1 WO 2004022752A1 JP 0311353 W JP0311353 W JP 0311353W WO 2004022752 A1 WO2004022752 A1 WO 2004022752A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polypeptide
- activity
- present
- smgbp1
- substance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/10—Transferases (2.)
- C12N9/12—Transferases (2.) transferring phosphorus containing groups, e.g. kinases (2.7)
- C12N9/1205—Phosphotransferases with an alcohol group as acceptor (2.7.1), e.g. protein kinases
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H21/00—Compounds containing two or more mononucleotide units having separate phosphate or polyphosphate groups linked by saccharide radicals of nucleoside groups, e.g. nucleic acids
- C07H21/04—Compounds containing two or more mononucleotide units having separate phosphate or polyphosphate groups linked by saccharide radicals of nucleoside groups, e.g. nucleic acids with deoxyribosyl as saccharide radical
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/705—Receptors; Cell surface antigens; Cell surface determinants
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
- C07K16/28—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2500/00—Screening for compounds of potential therapeutic value
- G01N2500/04—Screening involving studying the effect of compounds C directly on molecule A (e.g. C are potential ligands for a receptor A, or potential substrates for an enzyme A)
Definitions
- the present invention relates to a screening method for a substance that regulates SMG-1 binding protein and its activity.
- the present invention relates to a method for screening an SMG-1 binding protein and a substance that regulates the activity thereof.
- nonsense codons appear in the protein coding region as a result of substitution, recombination, and mutations such as Z or deletion of the nucleotide sequence of the gene. It is said that the shape is abnormal.
- Such a gene encodes an abnormal protein that ends prematurely, but mRN m encoding such an abnormal protein is usually not detected. This is because cells have a mechanism to identify and eliminate mRNAs that have nonsense codons at abnormal positions. This mechanism is the mechanism of mRNA degradation caused by nonsense codons
- Non-Patent Document 1 “Jeans & Development (GENES & DEVE and OPME NT) j, (USA), 2001, Vol. 15, p. 221 5-2228 (Non-Patent Document 1)] However, including human SMG-1 Little is known about the surveillance complex.
- the nucleotide sequence of the human cDNA encoding the novel polypeptide found by the present inventors was Kawabata, A., Hikiji.T., Kobatake, N., lnagak /, ⁇ ., Ikema, Y., 0kamoto, S., Okitani.R., Ota, T., Suzuki, Y., ObayashiJ.,
- Non-Patent Document 3 discloses a human phosphatidylinositol kinase (PIK) -related protein kinase (PI KK) which has an important function in cell cycle progression or checkpoint control, and discloses a mRNA servicing mechanism. There is no statement suggesting that.
- PIK human phosphatidylinositol kinase
- PI KK protein kinase
- Non-Patent Document 1 Akira Yamashita et al., "GE NES & DEVE LOPMENT” J, (USA), 2001, Vol. 15, p. 221 5-2228
- Non-Patent Document 2 Kawabata, A., Hikiji.T., Kobatake,., Inagaki'H.,
- Non-Patent Document 3 Onishi et al., "Analysis of Structure and Function of Novel pI3K-Related Giant Protein Kinase", “Program of the 22nd Annual Meeting of the Molecular Biology Society of Japan, 1999", 1 999 Year, p. 235 Disclosure of Invention
- the present inventors have eagerly sought to develop a method capable of artificially controlling the mRNA surveillance mechanism by elucidating the mRNA surveillance mechanism, and as a result, it was found that the mRNA was tightly bound to hSMG-1. A new protein was identified and the entire structure was determined. This molecule is tightly bound to hSMG-1 in cells, and is expected to be greatly involved in the control of kinase activity, localization in cells, and the control of surveillance complex activity. You. Therefore, the present inventor has found that it is one of the molecular target candidates when artificially controlling the mRNA surveillance mechanism. The present invention is based on such findings.
- an object of the present invention is to provide a novel polypeptide that binds to SMG-1 and a polynucleotide encoding the same, and further provide a screening system for a substance that artificially regulates the mRNA surveillance mechanism. It is in.
- the present invention relates to (1) a polypeptide comprising the amino acid sequence represented by SEQ ID NO: 2, (2) a polypeptide comprising the amino acid sequence represented by SEQ ID NO: 2, and further exhibiting SMGBP1 activity; In one or more positions of the amino acid sequence represented by No. 2, one or more amino acids include a deleted, substituted, and / or inserted amino acid sequence, and further, exhibit SMGBP "I activity. And (4) a polypeptide comprising an amino acid sequence having 90% or more homology with the amino acid sequence represented by SEQ ID NO: 2, and further exhibiting SMGBP1 activity.
- the present invention relates to polynucleotides encoding these polypeptides.
- the present invention also relates to an expression vector containing the polynucleotide.
- the present invention also relates to a transformant containing the polynucleotide.
- the present invention also relates to an antibody that binds to the polypeptide or a fragment thereof.
- the present invention also relates to a knockout non-human animal or cell in which the expression of the gene encoding the polypeptide is partially or completely suppressed.
- the present invention provides (1) a step of bringing the polypeptide, SMG-1 and a test substance into contact with each other under conditions where the SMGBP1 activity of the polypeptide can be exhibited if the test substance does not exist. , as well as
- a method for screening a substance that regulates the SMGBP1 activity of the polypeptide comprising a step of analyzing whether or not the SMGBP1 activity of the polypeptide is exerted.
- the present invention provides a method for contacting a cell capable of producing the polypeptide and SMG-1 with a test substance under conditions capable of producing the polypeptide in the absence of the test substance. The step of causing, and
- the present invention provides a nonsense-mediated substance comprising, as an active ingredient, a substance that regulates SMGBP1 activity of the polypeptide (for example, a substance that regulates SMGBP1 activity of the polypeptide obtained by the screening method). It relates to inhibitors of mRNA degradation.
- the present invention provides a nonsense mutation comprising, as an active ingredient, a substance that regulates SMGBP1 activity of the polypeptide (for example, a substance that regulates SMGBP1 activity of the polypeptide obtained by the screening method).
- the present invention relates to a therapeutic and / or prophylactic agent for a disease state caused by generating an early translation stop codon.
- the present invention provides a nonsense mediator comprising, as an active ingredient, a substance that controls the SMGBP1 activity of the polypeptide (for example, a substance that controls the SMGBP1 activity of the polypeptide obtained by the screening method).
- promoter of mRNA disintegration comprising, as an active ingredient, a substance that regulates SMGBP1 activity of the polypeptide (for example, a substance that regulates SMGBP1 activity of the polypeptide obtained by the screening method).
- the present invention provides a method for suppressing nonsense-mediated mRNA decay, comprising administering an effective amount of a substance that controls SMGBP1 activity of the polypeptide to a subject in need of suppressing nonsense-mediated mRNA decay.
- a method for suppressing nonsense-mediated mRNA decay comprising administering an effective amount of a substance that controls SMGBP1 activity of the polypeptide to a subject in need of suppressing nonsense-mediated mRNA decay.
- the present invention provides a substance that controls SMGBP1 activity of the polypeptide, a subject requiring treatment and no or prevention of a disease state caused by the occurrence of a premature translation termination codon by nonsense mutation,
- the present invention relates to a method for treating and preventing or preventing a disease state caused by generating a premature translation termination codon by a nonsense mutation, which comprises administering an effective amount.
- the present invention also provides a method for promoting nonsense-mediated mRNA decay, which comprises administering an effective amount of a substance that controls the SMGBP1 activity of the polypeptide to a subject in need of promoting nonsense-mediated mRNA decay. About the method.
- the present invention also relates to the use of a substance that controls the SMGBP1 activity of the polypeptide for producing an inhibitor of nonsense-mediated mRNA decay.
- the present invention also relates to the use of a substance that controls the SMGBP1 activity of the polypeptide for producing an agent for treating and / or preventing a pathological condition caused by the occurrence of a premature translation termination codon due to a nonsense mutation. .
- the present invention also relates to the use of a substance that controls the SMGBP1 activity of the polypeptide for producing a promoter of nonsense-mediated mRNA decay.
- Fig. 1 shows the results of phosphorylation of the immunoprecipitate of human HeLa cell extract obtained using anti-hSMG-1 serum (antiserum C) by autoradiography. It is a drawing.
- Figure 2 shows the results of autoradiography of the results of phosphorylation of immunoprecipitates of human HeLa cell extracts obtained using two types of hSMG-1 sera (antiserum C or antiserum L). It is a drawing shown by a graph.
- FIG. 3 is a chromatograph of a human HeLa cell extract using an anion exchange column HiTrapQ.
- FIG. 4 is a drawing showing the results of Western blotting performed to show the distribution of human SMG-1 in each fraction shown in FIG.
- FIG. 5 is a drawing showing, by autoradiography, the results of performing a phosphorylation reaction on each immunoprecipitate of h SMG-1 serum of each fraction shown in FIG. 3
- FIG. 6 is a drawing showing the results of a phosphorylation reaction performed on each immunoprecipitate of h SMG-1 serum of fractions 20 to 31 shown in FIG. 3 by a Western plot.
- Figure 7 shows the results of SDS-PAGE and silver staining of immunoprecipitates of human HeLa cell extract with anti-hSMG-1 IgG (N antibody). is there.
- FIG. 8 is an explanatory diagram showing the primary structure of the AK026858.1 translation product and the position of each sequence corresponding to AP1, AP2, AP3, AP4, AP5, and AP8.
- Figure 9 shows the results of immunoprecipitation of human HeLa cell extract with anti-hSMG-1 antiserum (antiserum N, antiserum, or antiserum C) using anti-AKO26858.1 translation product antibody. It is a drawing which shows the result of the western blot used.
- one or more amino acids include a deleted, substituted, and Z or inserted amino acid sequence, and may have SMGBP1 activity.
- the indicated polypeptide hereinafter referred to as a functionally equivalent variant
- homology with the Amino acid sequence shown in SEQ ID NO: 2 comprises a Amino acid sequence is 900/0 above, moreover, polypeptides exhibiting SMGBP 1 activity (hereinafter, referred to as a homologous polypeptide)
- polypeptide of the present invention “a polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 2”, binds to SMG-1 (particularly human SMG-1) to form a complex.
- SMG-1 particularly human SMG-1
- SMG BP 1 J SMG Binding Protein 1
- rsMGBP1 activity refers to the activity of binding to SMG-1 (particularly human SMG-1), the activity of being phosphorylated by SMG-1, and / or the activity of SMG-1 through these activities. Means the activity of controlling the action of Further, in the present specification, “J showing SMGBP1 activity” means showing at least one of these activities.
- SMG-1 is a phosphatidylinositol kinase (PIK) -related protein kinase (PI KK) that is essential for the mRNA surveillance process. It has autophosphorylation ability and simultaneously has nonsense-mediated mRNA decay (nonsense).
- PIK phosphatidylinositol kinase
- PI KK phosphatidylinositol kinase
- NMD mediated mRNA decay
- a method for determining whether or not a polypeptide to be tested is “J that exhibits SMGBP1 activity” is not particularly limited.
- a test polypeptide and SMG-1 for example, human SMG-1 is brought into contact with the test polypeptide and SMG- "! The determination can be made by analyzing whether or not a complex with is formed.
- the method for bringing the test polypeptide into contact with SMG-1 includes, for example, a method in which the test polypeptide and SMG-1 are each separately prepared genetically and contacted, Alternatively, a method may be used in which a polynucleotide encoding a test polypeptide is introduced into cells capable of producing SMG-1, and the test polypeptide and SMG-1 are produced and contacted in the cells. Cut.
- a method for analyzing a complex of a test polypeptide and SMG-1 includes, for example,
- phosphorylation is performed under conditions that allow phosphorylation by SMG-1 to confirm the presence or absence of the phosphorylated test polypeptide [for example, Example 1 (2) ⁇ ( Method described in 4)]; or, after performing chromatography, a method for confirming whether the test polypeptide and SMG-1 are present in the same fraction [eg, Examples 2 (2) and (3) The method described in
- the polypeptide of the present invention ⁇ comprises the amino acid sequence represented by SEQ ID NO: 2, and the polypeptide J exhibiting SMGBP1 activity includes, for example, the N-terminal of the amino acid sequence represented by SEQ ID NO: 2 and / or A fusion polypeptide consisting of an amino acid sequence with an appropriate marker sequence added to the C-terminus and exhibiting SMGBP1 activity can also be mentioned.
- a marker sequence that can be used in the polypeptide of the present invention for example, a sequence that facilitates confirmation of polypeptide expression, confirmation of intracellular localization, or purification can be used. Examples thereof include a FLAG tag, a hexa histidine ⁇ tag, a hemagglutinin c tag, and myc-epI. TJP2003 / 011353
- the functionally equivalent variant of the present invention has one or more (preferably 1 to 10, more preferably 1 to 7, at one or more positions of the amino acid sequence represented by SEQ ID NO: 2) More preferably, it is 1 to 5), for example, as long as it is a polypeptide that has an amino acid sequence in which one to several amino acids have been deleted, substituted, and / or inserted, and shows SMGBP1 activity.
- the origin is not limited to humans.
- polypeptide includes not only a human variant of the polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 2 (ie, human SMGBP1), but also organisms other than human (eg, monkey, mouse, rat, Hamsters or dogs). Furthermore, based on a polynucleotide encoding those natural polypeptides (ie, a human-derived variant or a functionally equivalent variant derived from a non-human organism), or represented by SEQ ID NO: 2 It includes polypeptides produced using polynucleotides that have been artificially modified by genetic engineering based on polynucleotides encoding polypeptides consisting of amino acid sequences.
- Mutants in humans of the polypeptide comprising the amino acid sequence represented by SEQ ID NO: 2 or functionally equivalent variants derived from organisms other than humans are represented by SEQ ID NO: 2 by those skilled in the art.
- SEQ ID NO: 2 Based on the information on the nucleotide sequence of the polynucleotide encoding the polypeptide consisting of the amino acid sequence (for example, the sequence consisting of the 16th to 2988th bases in the nucleotide sequence represented by SEQ ID NO: 1) , Can be obtained.
- a known method Example 7 L, Sambrook, J.b., Molecular Cloning—AL aboratory Manua I ", Cold Spring Harbor La) boratory, NY, 1989).
- an appropriate primer or probe is designed based on information on the nucleotide sequence of a polynucleotide encoding a polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 2, and the primer or probe and the target organism [Eg, a mammal (eg, human, monkey, mouse, rat, hamster, or dog)] (eg, a total RNA or mRNA fraction, a cDNA library, or a fur PT / JP2003 / 011353
- Polypeptide encoding by using polymerase chain reaction (PCR) method (Saiiki, RK et al., Science, 239, 487-491, 1988) or hybridization method using A desired polypeptide can be obtained by obtaining the polynucleotide, expressing the polynucleotide using an appropriate expression system, and confirming that the expressed polypeptide exhibits SMGBP1 activity. .
- PCR polymerase chain reaction
- the above-mentioned polypeptide which has been artificially modified by genetic engineering can be produced by a conventional method, for example, site-specific mu tagenesis (Mark, DF et al., Proc. Natl. A USA, 81, 5662-5666, 19984), a polynucleotide encoding a polypeptide is obtained, and the polynucleotide is expressed using an appropriate expression system. By confirming that it exhibits SM GBP1 activity, the desired polypeptide can be obtained.
- the homologous polypeptide of the present invention is not particularly limited as long as it contains an amino acid sequence having a homology of 90% or more with the amino acid sequence represented by SEQ ID NO: 2 and exhibits SMGBP1 activity.
- the amino acid sequence represented by SEQ ID NO: 2 preferably contains an amino acid sequence having a homology of 95% or more, more preferably 98% or more, and still more preferably 99% or more. it can.
- BLAST Basic Ioca Ia ingmentsearchtool; Altschul, SF et al., J. Mo., Biol., 215, 403-410, 1990). Means the value obtained by
- the polynucleotide of the present invention is not particularly limited as long as it is a polynucleotide encoding the polypeptide of the present invention.
- the 16th to 16th nucleotides in the base sequence represented by SEQ ID NO: 1 A polynucleotide comprising a sequence consisting of the 2988th base or a polynucleotide comprising a sequence consisting of the 16th to 2988th bases in the base sequence represented by SEQ ID NO: 1 can be mentioned.
- the term “polynucleotide” in the present specification includes DNA and RN. 3011353
- A includes both.
- the method for producing the polynucleotide of the present invention is not particularly limited. Examples thereof include (1) a method using PCR, and (2) a conventional genetic engineering method (that is, a method using a cDNA library). (A method of selecting a transformed strain containing the desired cDNA from the transformed transformant), or (3) a chemical synthesis method. Hereinafter, each manufacturing method will be sequentially described.
- the polynucleotide of the present invention can be produced, for example, by the following procedure.
- mRNA is extracted from human cells or tissues capable of producing the polypeptide of the present invention.
- a set of two primers capable of sandwiching the full length of mRNA corresponding to the polypeptide of the present invention, or a part thereof Create a pair of primer sets that can sandwich the mRNA region.
- RT-PCR reverse transcriptase-polymerase chain reaction
- total RNA containing mRNA encoding the polypeptide of the present invention is extracted from cells or tissues capable of producing the polypeptide of the present invention by a known method.
- the extraction method include the guanidine 'thiocyanate' hot phenol method, the guanidine thiocyanate-guanidine ⁇ hydrochloride method, and the guanidine thiocyanate cesium chloride method. Preferably, it is used.
- Cells or tissues having the ability to produce the polypeptide of the present invention include, for example, a Northern plotting method using a polynucleotide encoding the polypeptide of the present invention or a part thereof, or a polynucleotide or a polynucleotide of the present invention.
- the specificity can be determined by an estane blotting method using an antibody specific to the peptide.
- the extracted mRNA is purified.
- Purification of mRNA can be performed according to a conventional method. For example, mRNA can be purified by adsorbing it to an oligo (dT) cellulose column and eluted. If desired, mR by sucrose density gradient centrifugation, etc. NA can be further fractionated. Further, even without extracting mRNA, commercially available extracted and purified mRNA can be used.
- the purified mRNA is subjected to a reverse transcriptase reaction in the presence of, for example, a random primer, an oligo dT primer, and a primer synthesized in a random or custom manner to synthesize a first-strand cDNA.
- This synthesis can be performed by a conventional method.
- PCR is performed using two types of primers sandwiching the full length or a partial region of the target polynucleotide to amplify the target cDNA.
- the obtained DNA is fractionated by agarose gel electrophoresis or the like. If desired, the desired DNA fragment can be obtained by cleaving the DNA with a restriction enzyme or the like and connecting the DNA fragments.
- the polynucleotide of the present invention can be produced, for example, by the following procedure.
- a single-stranded cDNA was synthesized using a reverse transcriptase, and then a double-stranded cDNA was synthesized from the single-stranded cDNA.
- the method include the S1 nuclease method (E fstratiadis, A. et al., Cell, 7, 279-288, 1976), the L and method (L and, H. et al., Nucleic Acids Res. , 9, 2251 -2266, 1981), 0. Joon Yoo method (Yoo, OJ-et al., Proc. Natl. Ac a d. Sc, USA, 79, 1009-1. 053, 1983), or O kayama-Berg method (Okayama, H. and Berg, P., MoI. Cell to Biol., 2, 161—170, 1982) And so on.
- the recombinant plasmid is introduced into Escherichia coli (for example, DH5 strain, HB101 strain, or JM109 strain) and transformed, for example, tetracycline.
- Escherichia coli for example, DH5 strain, HB101 strain, or JM109 strain
- Recombinants are selected using drug resistance to ampicillin, kanamycin, or the like as an index.
- the transformation of the host cell is performed by the method of Hanahan (Hanahan, DJ, Mo to Biol., 166, 557-580, 1983), that is, C a CI 2 , recombinant cells prepared in the presence of MgC I 2 or Rb CI
- the method can be carried out by adding a DNA form.
- a phage vector such as a lambda system can be used in addition to the plasmid.
- Methods for selecting a transformant having the desired cDNA from the transformants obtained in this way include, for example, the following (i) a transformant screening method using a synthetic oligonucleotide probe, (ii) ) A transformant screening method using a probe prepared by PCR, (iii) a transformant screening method using an antibody against the polypeptide of the present invention, or (iv) selective 'hybridization trans'.
- a transformant screening method using a translation system can be employed. .
- a transformant having a desired cDNA can be selected by the following procedure.
- an oligonucleotide corresponding to all or a part of the polypeptide of the present invention is synthesized, and this is used as a probe (labeled with 32 P or 33 P) to obtain a nitrocellulose denatured and immobilized with the DNA of the transformant. Hybridize with a filter or polyamide filter, search for the obtained positive strain, and select it.
- a nucleotide sequence derived using codon usage can be used, or a plurality of nucleotide sequences obtained by combining possible nucleotide sequences can be used. You can also. In the latter case, the type can be reduced by including inosine.
- a transformant having the desired cDNA can be selected by the following procedure.
- oligonucleotides of a sense primer and an antisense primer corresponding to a part of the polypeptide of the present invention are synthesized, and PCR is performed by combining them to encode all or a part of the target polypeptide.
- Amplify a DNA fragment ( type DN DNA used here may be cDNA or genomic DNA synthesized by reverse transcription from mRNA of a cell producing the polypeptide of the present invention.
- the DNA fragment thus prepared is labeled with, for example, 32 P or 33 P, Using this as a probe, colony hybridization or plaque hybridization is performed to select a transformant having the desired cDNA.
- a method for screening a transformant using an antibody against the polypeptide of the present invention a transformant having the desired cDNA can be selected, for example, by the following procedure.
- a polypeptide is produced on the culture supernatant, intracellularly, or on the cell surface of the transformant, and a desired polypeptide-producing strain is produced using an antibody against the polypeptide of the present invention and a secondary antibody against the antibody.
- a transformant which is detected and has the desired cDNA is selected.
- a transformant having the target cDNA can be selected by the following procedure.
- cDNA obtained from the transformant is blotted on a nitrocellulose filter or the like, mRNA prepared separately from cells having the ability to produce the polypeptide of the present invention is hybridized, and then bound to cDNA. Dissociate the recovered mRNA and recover.
- the recovered mRNA is injected into an appropriate polypeptide translation system, for example, into oocytes of African alfalfa, or translated into a polypeptide using a cell-free system such as egret reticulocyte lysate or wheat germ. .
- a transformant having the desired cDNA is selected by detection using an antibody against the polypeptide of the present invention.
- a method for collecting the polynucleotide of the present invention from the obtained transformant of interest can be obtained by a known method (for example, Sambrook, J. et al., "Molecular CI oning—AL aboratory Manual, Cold Spring Prep. ng Harbor Laboratory, NY, 1989) For example, by separating a fraction corresponding to plasmid DNA from cells and cutting out the cDNA region from the obtained plasmid DNA. be able to.
- the polynucleotide of the present invention can be produced by binding the DNA fragment or the NA fragment.
- Each DNA is synthesized using a DNA synthesizer [for example, Oligo 100 OM DNA Synthesizer (manufactured by Beckan), or 394 DNA ZRNA Synthesizer (manufactured by App I ied Biosystems X)]. be able to.
- the polynucleotide of the present invention can be prepared, for example, by the phosphite triester method (Hunkap IIer, M. et al., Nature, 10: 105-111) based on the information of the polypeptide of the present invention. 1, 1 984) and the like, and can also be produced by chemical synthesis of nucleic acids.
- the codon for the desired amino acid is known per se and may be arbitrarily selected. For example, it can be determined according to a conventional method in consideration of the codon usage of the host to be used (Cranth am, R Et al., Nucleic Acids Res., 9, r43-r74, 1981).
- partial modification of the codons of these nucleotide sequences can be performed by a conventional method using a site-specific mutagenesis (Mark rk) using a primer consisting of a synthetic oligonucleotide encoding the desired modification.
- Mark rk site-specific mutagenesis
- the sequencing of DNA obtained by the various methods described so far can be performed, for example, by the chemical modification method of Maxam-Gilbert (MaXam, AM and Gibert, W., "Methodsin Enzymo Iogy”). , 65, 499—55 9, 1980) ⁇ Performed by dideoxynucleotide chain termination method (Messing, J. and Vieira, J., Gene, 19, 269-276, 1982) Can be.
- Eukaryotic or prokaryotic host cells can be transfected by re-incorporating the isolated polynucleotide of the present invention into the appropriate vector DNA. Also, by introducing an appropriate promoter and a sequence involved in expression into these vectors, the polynucleotide can be expressed in each host cell.
- the expression vector of the present invention is not particularly limited as long as it contains the polynucleotide of the present invention.
- the expression vector of the present invention An expression vector obtained by inserting a nucleotide can be mentioned.
- the expression vector of the present invention includes an expression vector for producing the recombinant polypeptide of the present invention, and an expression vector for producing the polypeptide of the present invention in vivo by gene therapy.
- the transformant of the present invention is also transfected with the expression vector or the polynucleotide of the present invention, and is not particularly limited as long as it contains the polynucleotide of the present invention.
- the polynucleotide can be a cell integrated into the chromosome of the host cell, or it can be a cell containing the polynucleotide in the form of an expression vector containing the polynucleotide according to the present invention.
- the cells may be cells expressing the polypeptide of the present invention, or cells not expressing the polypeptide of the present invention.
- the transformant of the present invention can be obtained, for example, by transfection of a desired host cell with the expression vector of the present invention.
- eukaryotic host cells include cells such as vertebrates, insects, and yeast, and vertebrate cells include, for example, monkey COS cells (GIuzman, Y., Ce II, 23, 175-182, 1981), a dihydrofolate reductase-deficient strain of Chinese hamster ovary cells (CHO) (UrI aub G. and Cansin, LA, Proc. Natl. USA, 77, 421 6-4220, 1980), human embryonic kidney-derived HEK293 cells, and the EBNA-1 gene of Epstein's bar virus introduced into the HEK293 cells. 293-EBN. A cell (Invitrogen), or human-derived 293 T cell (Du Bridge, RB et al., Mo to Ce I to Biol., 7, 379-387, 1987) and the like. .
- monkey COS cells GIuzman, Y., Ce II, 23, 175-182, 1981
- CHO Chinese hamster ovary cells
- CHO Chinese ham
- a vertebrate cell expression vector those having a promoter, an RNA splice site, a polyadenylation site, and a transcriptional and transcription termination sequence which are usually located upstream of the gene to be expressed can be used. If necessary, those having a replication origin can also be used.
- the expression vector include, for example, PSV2 dhfr (Subramani, S. et al., Mo. Cell. Bio, 1, 854-864, 19981) with the SV40 early promoter pEF-BOS with the human elongation factor promoter (Mizushima, S and Nagata, S. 'Nucleic Acids Res., 18, 5322, 1990), or pCEP4 (In Vitrogen) having a cytomegalovirus promoter. Can be mentioned.
- COS cells When COS cells are used as host cells, autonomous propagation in cells is possible if an expression vector having an SV40 replication origin is used. Furthermore, those having a transcription promoter, a transcription termination signal, and an RNA splice site can be used.
- pME18S Maruyama, K. and Takebe, Y., Med. Immuno, 20, 27-32, 1 990
- p EF—BOS Mizushima, S. and Nagata, S., Nuc Ieic Acids Res s., 18, 5322, 1990
- pCDM 8 When COS cells are used as host cells, autonomous propagation in cells is possible if an expression vector having an SV40 replication origin is used. Furthermore, those having a transcription promoter, a transcription termination signal, and an RNA splice site can be used. For example, pME18S (Maruyama, K. and Takebe, Y., Med. Immuno, 20, 27-32, 1 990), p EF—BOS (M
- Examples of the expression vector include a DEAE-dextran method (Lutman, H. and Magnusson, G., Nucleic Acids Res., 11, 1295-1 308, 1983), calcium phosphate-DNA, Co-precipitation method
- a vector capable of expressing a neo gene functioning as a G418 resistance marker together with an expression vector containing a polynucleotide encoding the polypeptide of the present invention, for example, p RS Vn eo (S amb rook, J.b, Mo lecular Cloning-AL aboratory M anua I ", Cold Spring Ha rbor Laboratory, NY, 1989) or p SV2-neo (Southern, PJ and Berg, P., J. Mo to App I. Ge net. '1, 327-341, 1982), etc.
- p RS Vn eo S amb rook, J.b, Mo lecular Cloning-AL aboratory M anua I ", Cold Spring Ha rbor Laboratory, NY, 1989
- p SV2-neo Southern, PJ and Berg, P., J. Mo to App I. Ge net. '1, 327-341, 1982
- a vector for gene therapy a commonly used vector (for example, retrovirus, adenovirus, Sendai virus, etc.) can be used.
- the transformant of the present invention can be cultured according to a conventional method, and the culture produces the polypeptide of the present invention in cells.
- a medium that can be used for the culture various types of commonly used media can be appropriately selected depending on the host cell used.
- serum components such as fetal calf serum (FBS) were added to a medium such as RPMI-1640 medium or Dulbecco's modified Eagle's minimum essential medium (DMEM) as necessary.
- FBS fetal calf serum
- DMEM Dulbecco's modified Eagle's minimum essential medium
- 293-EBNA cells use a medium such as Dulbecco's Modified Eagle's Minimum Essential Medium (DMEM) supplemented with serum components such as fetal bovine serum (FBS) plus G418. Can be.
- DMEM Dulbecco's Modified Eagle's Minimum Essential Medium
- the polypeptide of the present invention produced in the cell of the cell may be any of various known types utilizing the physical properties, biochemical properties, and the like of the polypeptide. Separation and purification can be performed by the separation operation method. Specifically, the cell extract containing the polypeptide of the present invention may be treated, for example, with a conventional protein precipitant, ultrafiltration, various liquid chromatography [eg, molecular sieve chromatography (gel filtration), adsorption] Chromatography, ion exchanger chromatography, affinity chromatography, or high-performance liquid chromatography
- various liquid chromatography eg, molecular sieve chromatography (gel filtration), adsorption] Chromatography, ion exchanger chromatography, affinity chromatography, or high-performance liquid chromatography
- the expression of the polypeptide of the present invention can be easily confirmed or purified by fusing the polypeptide of the present invention with the marker sequence in frame.
- the marker sequence include a FLAG tag, a hexahistidine 'tag, Hemagglutinin 'tag or my cepitope.
- a protease for example, an oral kinase, factor Xa, or thrombin
- the marker sequence portion can Can be cleaved and removed.
- the polypeptide of the present invention By using the polypeptide of the present invention, a substance that controls (eg, suppresses or promotes) the SMGBP1 activity of the polypeptide of the present invention can be screened.
- Human SMGBP1 which is a polypeptide of the present invention, is tightly bound in vivo to human SMG-1 essential for mRNA surveillance, and controls kinase activity, localizes in cells, Furthermore, it is predicted that the activity is greatly involved in controlling the activity of the surveillance complex. Therefore, the substance that regulates the SMGBP1 activity of the polypeptide of the present invention may be, for example, a substance that controls nonsense-mediated mRNA decay (NMD) through the control of SMG-1 activity.
- NMD nonsense-mediated mRNA decay
- NMD is useful as a candidate for a therapeutic and / or prophylactic agent for various diseases associated with NMD
- the polypeptide of the present invention itself is used as the SMGBP1 of the polypeptide of the present invention. It can be used as a screening tool for a substance that regulates the activity or a therapeutic and / or prophylactic agent for various diseases associated with NMD.
- the NMD is a mechanism for recognizing and specifically degrading a nonsense mutant mRNA in which a codon in the middle of the original translation region of a gene has been changed to a stop codon.
- Examples of various diseases associated with NMD include, but are not limited to, those conditions that are caused by the elimination of mRNA including PTC, and those that are caused by nonsense mutation, or premature translation termination codons due to nonsense mutations. PTC) can be cited.
- the pathological conditions caused by nonsense-induced PTCs include, but are not particularly limited to, for example, hereditary diseases (eg, decenne muscular dystrophy) and cancers caused by somatic mutations.
- hereditary diseases eg, decenne muscular dystrophy
- cancers caused by somatic mutations can be mentioned P2003 / 011353
- NMD mechanism if the NMD mechanism can be suppressed, a protein fragment having an effective activity can be expressed, so that a pathological condition caused by the presence of a stop codon in the middle of a specific gene, that is, a nonsense mutation of the specific gene It has been theoretically predicted that at least part of the pathological conditions caused by the disease can be eliminated. However, no technique for specifically suppressing only NMD has been known at all.
- the substance capable of suppressing SMG-1 activity through the control of SMGBP1 activity is NMD Therefore, it is useful as an active ingredient of a completely new type of therapeutic and / or prophylactic agent that can eliminate at least a part of the gene mutation in any pathological condition caused by nonsense mutation of a specific gene. It is.
- those that can promote SMG-1 activity through the control of SMGBP1 activity are Since it can promote NMD, it can be used as an active ingredient of an NMD promoter, or should be excluded. Useful as
- Test substances that can be subjected to the screening method of the present invention are particularly limited. Although not specified, for example, various known compounds (including peptides) registered in the chemical file, combinatorial chemistry technology (T errett, NK et al., Tetrahedron, 51, 81 35-81 37, 1995) or a group of compounds obtained by conventional synthetic techniques, or the phage display method (Felici, F. et al., J. Mo., Biol., 222, 310-1 310, 19991). A random peptide group created by application can be used. In addition, culture supernatants of microorganisms, natural components derived from plants or marine organisms, or animal tissue extracts can also be used as test substances for screening. Further, a compound (including a peptide) obtained by chemically or biologically modifying a compound (including a peptide) selected by the screening method of the present invention can be used.
- the screening method of the present invention comprises:
- the polypeptide of the present invention, SMG-1 (for example, human SMG-1), and a test substance are prepared under the conditions in which the SMGBP1 activity of the polypeptide can be exhibited if the test substance does not exist.
- the step of contacting hereinafter referred to as the contacting step
- an analysis step (2) a step of analyzing whether or not the SMGBP 1 activity of the polypeptide was exerted (hereinafter referred to as an analysis step);
- the method of bringing the polypeptide of the present invention into contact with the SMG-1 and the test substance is performed under conditions where the SMGBP1 activity of the polypeptide of the present invention can be exhibited if the test substance does not exist (ie, However, there is no particular limitation as long as the polypeptide of the present invention can be brought into contact with SMG-1 under conditions that allow the polypeptide to bind to SMG-1).
- Examples of such a contacting method include a method in which a test polypeptide and SMG-11 are separately prepared by genetic engineering, and the test polypeptide and SMG-1 are contacted with a test substance.
- test polypeptide and SMG-1 are produced in the cell, and the test polypeptide and SMG-1 " Examples of the method include bringing a test substance into contact with the test substance.
- the test substance is a substance that suppresses the SMGB P1 activity of the polypeptide of the present invention. Can be determined.
- methods for analyzing the complex of the polypeptide of the present invention and SMG-1 include, for example,
- an antibody against either SMG-1 or the polypeptide of the present invention for example, anti-SMG-1 antibody
- an antibody against the other polypeptide for example, the polypeptide of the present invention
- a method for confirming the presence or absence of the latter polypeptide by means of an estrogen blot [hereinafter referred to as immunoprecipitation and Western plot combined method; for example, the method described in Example 4 (2) below) ;
- a method for confirming whether or not the polypeptide of the present invention and SMG-1 are present in the same fraction [hereinafter referred to as a fractionation method; for example, Examples 2 (2) and (2) Method described in 3)]
- Etc. can be used.
- the immunoprecipitation is performed using an antibody against either SMG-1 or the polypeptide of the present invention (for example, an anti-SMG-1 antibody).
- an antibody against either SMG-1 or the polypeptide of the present invention for example, an anti-SMG-1 antibody.
- a Western plot is performed using an antibody to the polypeptide (eg, an antibody to the polypeptide of the invention). If the latter polypeptide (for example, the polypeptide of the present invention) is detected as a result of Western blot, a complex of the polypeptide of the present invention and SMG-1 is formed (ie, the polypeptide of the present invention) SMGBP 1 activity was exerted).
- an antibody to the polypeptide eg, an antibody to the polypeptide of the invention.
- the test substance is a substance that suppresses the SMGBP1 activity of the polypeptide of the present invention.
- the test substance is a substance that promotes the SMGBP1 activity of the polypeptide of the present invention.
- the immunoprecipitation method and the silver staining method are used in the analysis step, the immunoprecipitation is performed using an antibody (for example, an anti-SMG-1 antibody) against either SMG-1 or the polypeptide of the present invention. Then, electrophoresis is performed, and the presence or absence of the remaining other polypeptide (eg, the polypeptide of the present invention) is confirmed by an appropriate detection method (eg, silver staining). If the latter polypeptide (for example, the polypeptide of the present invention) is detected, a complex of the polypeptide of the present invention and SMG-1 is formed (that is, SMGBP1 of the polypeptide of the present invention). Activity was exhibited).
- an antibody for example, an anti-SMG-1 antibody
- electrophoresis is performed, and the presence or absence of the remaining other polypeptide (eg, the polypeptide of the present invention) is confirmed by an appropriate detection method (eg, silver staining). If the latter polypeptide (for example, the polypeptide of
- the test substance is a substance that suppresses the SMGBP1 activity of the polypeptide of the present invention.
- the test substance is a substance that promotes the SMGBP1 activity of the polypeptide of the present invention.
- immunoprecipitation is performed using an anti-SMG-1 antibody, and then phosphorylation is performed under conditions that allow phosphorylation by SMG-1. This is performed to confirm the presence or absence of the phosphorylated polypeptide of the present invention. If the polypeptide of the present invention is detected, the polypeptide of the present invention It can be determined that a complex between the polypeptide of the present invention and SMG-1 has been formed (that is, the polypeptide of the present invention exhibited SM GBP1 activity).
- the test substance is a substance that suppresses the SMGBP1 activity of the polypeptide of the present invention.
- the test substance is a substance that promotes the SMGBP1 activity of the polypeptide of the present invention.
- the polypeptide of the present invention and SMG-1 are present in the same fraction after performing chromatography.
- a complex of the polypeptide of the present invention and SMG-1 was formed (that is, the SMGBP1 activity of the polypeptide of the present invention was exhibited). Has been performed).
- the polypeptide of the present invention and SMG-1 are not present in the same fraction, a complex of the polypeptide of the present invention and SMG-1 is not formed (that is, the polypeptide of the present invention).
- the test substance is a substance that suppresses the SMGBP1 activity of the polypeptide of the present invention.
- the test substance promotes SM GBP1 activity of the polypeptide of the present invention.
- SMGBP1 activity modulators may be used alone or, preferably, together with conventional pharmaceutically or veterinarily acceptable carriers or diluents to control NMD [eg, , An animal, preferably a mammal (particularly a human)], or a subject in need of treatment and / or prevention of a condition caused by PTC caused by a nonsense mutation. 11353
- those that promote SG-1 activity through the control of SMGBP1 activity can promote NMD. It is useful as a candidate for a therapeutic and / or prophylactic agent for a disease state caused by the fact that mRNA including PTC to be eliminated is not eliminated.
- SMGBP1 activity modulators may be used alone or, preferably, together with conventional pharmaceutically or veterinarily acceptable carriers or diluents, for subjects that need to promote NMD [e.g. , Animals, preferably mammals (especially humans)], or those who need treatment and / or Z or prophylaxis for conditions that are to be eliminated and are not caused by the elimination of mRNA, including PTC. It can be administered in an amount.
- the dosage form of the pharmaceutical composition of the present invention is not particularly limited, and examples thereof include powders, fine granules, granules, tablets, capsules, suspensions, emulsions, syrups, excipients, and the like. Examples include oral preparations such as pills, and parenteral preparations such as injections, external solutions, ointments, suppositories, creams for topical application, and eye drops.
- oral agents include, for example, gelatin, sodium alginate, starch, corn starch, sucrose, lactose, glucose, mannitol, carboxymethylcellulose, dextrin, polyvinylpyrrolidone, crystalline cellulose, soy lecithin, sucrose, fatty acid esters, talc, Excipients such as magnesium stearate, polyethylene glycol, magnesium silicate, maleic anhydride, or synthetic aluminum gayate, binders, disintegrants, surfactants, lubricants, flow promoters, diluents, preservatives It can be produced by a conventional method using a coloring agent, a flavor, a flavoring agent, a stabilizer, a humectant, a preservative, an antioxidant, or the like.
- parenteral administration methods include injection (subcutaneous, intravenous, etc.) and rectal administration. Of these, injections are most preferably used.
- a physiological saline or a water-soluble solvent such as Ringer's solution, a water-insoluble solvent such as vegetable oil or fatty acid ester, glucose or sodium chloride, etc.
- a water-insoluble solvent such as vegetable oil or fatty acid ester, glucose or sodium chloride, etc.
- a tonicity agent, a solubilizing agent, a stabilizer, a preservative, a suspending agent, an emulsifier, or the like can be optionally used.
- composition of the present invention is a method of a sustained-release preparation using a sustained-release polymer or the like.
- the pharmaceutical composition of the present invention can be incorporated into a pellet of ethylene vinyl acetate polymer, and the pellet can be surgically implanted into a tissue to be treated or prevented.
- the pharmaceutical composition of the present invention can contain the active ingredient in an amount of, but not limited to, 0.01 to 99% by weight 0 / o, preferably 0.1 to 80% by weight. .
- the dosage in the case of using the pharmaceutical composition of the present invention is appropriately determined depending on, for example, the type of the active ingredient to be used, the type of the disease, the age, sex, weight, and the degree of the symptoms of the patient, or the administration method. It can be administered orally or parenterally.
- administration form is not limited to pharmaceuticals, and it can be provided in various forms, for example, functional foods and health foods (including beverages), or as feeds in the form of food and drink.
- Antibodies that react with the polypeptide of the present invention can be obtained by directly administering the polypeptide of the present invention or a fragment thereof to various animals.
- the DNA vaccine method (Raz, E. et al., Proc. Natl. Acad. 91, 951 9-952 3, 1994; or by Donne II y, J.J. et al., J. Infect.Dis., 173, 31 4-320, 1996). it can.
- the polyclonal antibody is, for example, an animal immunized with an emulsion obtained by emulsifying the polypeptide of the present invention or a fragment thereof in an appropriate adjuvant (for example, Freund's complete adjuvant) intraperitoneally, subcutaneously, or veinly. (For example, a rabbit, a rat, a goat, or a chicken).
- a polyclonal antibody can be separated and purified from the serum or eggs thus produced by a conventional polypeptide isolation and purification method. Examples of such separation and purification methods include centrifugal separation, dialysis, salting out with ammonium sulfate, and chromatographic methods with DEAE-cellulose, hydroxyapatite, or protein A agarose. Can be.
- Monoclonal antibodies can be readily prepared by those skilled in the art by, for example, the cell fusion method of Koehler and Milstein (Koh Ier, G. and M I Istein, C., Nature, 256, 495-497, 1975). It is possible to manufacture.
- the polypeptide of the present invention or a fragment thereof is emulsified in an appropriate adjuvant (for example, Freund's complete adjuvant) repeatedly inoculated intraperitoneally, subcutaneously, or vein several times into mice every few weeks. Immunize with After the final immunization, spleen cells are removed and fused with myeloma cells to produce hybridomas.
- an appropriate adjuvant for example, Freund's complete adjuvant
- myeloma cells for obtaining hybridomas include myeloma cells having a marker such as hypoxanthine-guanine-phospholiposyltransferase deficiency or thymidine kinase deficiency (for example, mouse myeloma cell line P3 X63Ag 8.U 1) can be used.
- a marker such as hypoxanthine-guanine-phospholiposyltransferase deficiency or thymidine kinase deficiency
- polyethylene glycol can be used as the fusion agent.
- a medium for producing a hybridoma for example, 10 to 30% of a commonly used medium such as Eagle's minimum essential medium, Dulbecco's modified minimum essential medium, or RPMI-1640 is used.
- Fetal serum can be appropriately added and used.
- Fusion strains can be selected by the HAT selection method.
- the screening of hybridomas is performed by using well-known methods such as the ELISA method or immunohistochemical staining method using the culture supernatant, and clones of the hybridomas secreting the desired antibody can be selected.
- by repeating subcloning by the limiting dilution method it is possible to guarantee the monoclonality of each hybrid.
- the hybrididoma obtained in this manner can be purified for 2 to 4 days in the medium or 10 to 20 days in the abdominal cavity of BA LBZc mouse pretreated with pristane to obtain a sufficient amount of antibody. Can be produced.
- the monoclonal antibody thus produced can be separated and purified from the culture supernatant or ascites by a conventional method for isolating and purifying the polypeptide.
- a separation and purification method include centrifugation, dialysis, salting out with ammonium sulfate, and chromatography using DEAE-cellulose, hydroxyapatite, or protein A agarose.
- the monoclonal antibody or an antibody fragment containing a part thereof can also be produced by incorporating all or a part of the gene encoding a null antibody into an expression vector, and introducing the gene into an appropriate host cell (for example, Escherichia coli, yeast, or an animal cell).
- an appropriate host cell for example, Escherichia coli, yeast, or an animal cell.
- Antibodies including polyclonal antibodies and monoclonal antibodies separated and purified as described above are digested with a polypeptide-degrading enzyme (for example, pepsin or papain) according to a conventional method.
- a polypeptide-degrading enzyme for example, pepsin or papain
- An antibody fragment containing a part of an active antibody for example, pepsin or papain
- F (ab ') 2 , Fab, Fab', or Fv can be obtained.
- an antibody reactive with the polypeptide of the present invention can be obtained by the method of Kraxon et al. Or the method of Zebede et al. (CI ackson, T. et al., Nature, 352, 624-628, 19991; or Zebedee, S. Natl. Acad. Sc, USA, 89, 31 75-31 79, 1992), can be obtained as a single chain (sing I echain) Fv or Fab. It is.
- human antibodies can be obtained by immunizing transgenic L-nick mice (onberg, N. et al., Nature, 368, 856-859, 1999), in which the mouse antibody gene is replaced with a human antibody gene. Is also possible.
- the knocked-out non-human animal of the present invention is not particularly limited as long as the expression of the gene encoding the polypeptide of the present invention is partially or completely suppressed. , Can be manufactured.
- a non-human animal such as embryo, stem, goat, pig, pig, mouse, or embryonic stem cell such as chicken (Embryonicst em cell).
- embryonic stem cell such as chicken (Embryonicst em cell).
- a chimeric individual composed of embryonic stem cell clones and normal cells can be prepared.
- By crossing the chimeric individual with a normal individual it is possible to obtain an individual having an arbitrary mutation in the gene encoding the polypeptide of the present invention present on the chromosome of the cells of the whole body.
- knockout non-humans are regarded as individuals in which expression of the gene encoding the polypeptide of the present invention is partially or completely suppressed. You can get animals.
- the cells of the present invention in which the expression of the gene encoding the polypeptide of the present invention is partially or completely suppressed, can be obtained from the knockout non-human animal.
- desired cells eg, human fetal kidney-derived HEK293 cells, 293-EBNA cells obtained by introducing the EBN A-1 gene of Epstein's virus into HEK293 cells, or human-derived cells 293T
- desired cells eg, human fetal kidney-derived HEK293 cells, 293-EBNA cells obtained by introducing the EBN A-1 gene of Epstein's virus into HEK293 cells, or human-derived cells 293T
- RNA interference for example, Nature, 411, 494-498, 2002. It is included in the scope of the present invention.
- a knockout non-human animal by introducing a mutation into any position of the gene encoding the polypeptide of the present invention on the chromosome (for example, the present invention on the chromosome). It is also possible to alter the activity of the gene product by introducing a mutation into the translation region of the gene encoding the polypeptide by substituting, deleting, and / or inserting a base. is there.
- the degree, timing, and / or tissue specificity of expression can be altered.
- the expression timing, expression site, and / or expression level can be more positively controlled by combination with the Cre-Io XP system.
- An example of this is the use of a promoter that is expressed in a specific region of the brain to delete the target gene only in that region [Cell, 87, 7, 1317 (1996) And an organ-specific deletion of a target gene at a target time using a Cre-expressing adenovirus [Science, 278, 5335 (1997)].
- the expression of the gene encoding the polypeptide of the present invention on the chromosome can also be controlled at any time and in any tissue, and any insertion, deletion, and / or substitution can be performed.
- a knockout non-human animal having a translation region or an expression control region can be produced.
- the knockout non-human animal can induce the symptoms of various diseases caused by the polypeptide of the present invention at any time, any degree, and / or any site.
- the non-human knockout animal of the present invention becomes an extremely useful animal model in the treatment and prevention of various diseases caused by the polypeptide of the present invention.
- the knockout non-human animal of the present invention can also be used to establish a model animal for a disease caused by a gene different from the gene encoding the polypeptide of the present invention.
- SMGB P1 knockout mice one of the knockout non-human animals of the present invention, are crossed with various strains of (apparent) normal mice.
- the latter normal mouse contains a mutant gene having PTC, the mouse obtained by the above-mentioned crossing (for example, a homozygous individual having an SMG BP1 mutation in both homologous chromosomes, or an SMGBP 1 in one of homologous chromosomes)
- NMD activity will be affected in a mutagenic individual (mutated mouse).
- mutated mouse mutated mouse
- hidden symptoms may surface and some diseases may occur, and a new disease model mouse can be established.
- Example 1 Discovery of h SMG-1 binding protein phosphorylated in a human SMG-1 (h SMG-1) enzyme activity-dependent manner
- the cells were picked up at 31 par and the cells were collected by centrifugation. After removing PBS, a protease inhibitor [1 mmo I ZL— PMS F (pheny I methy I su I fony I fluoride), 10 // gZm L aprotinin, and 10 ⁇ g Zm L leptin ⁇ F-lysis solution added with [2 Ommo IZ-I Tr-s HCI (pH 7.5), 0.25mo I ZL sucrose, 20mmo I ZL- yS-mercaptoethanol, 1.2mmo I ZL- EG TA, Immol ZL Sodium Orthovanadate, 1 mmo IZL Sodium Fluoride, Immol ZL Sodium Pyrophosphate, 15 Ommo IZL Sodium Chloride, 1% Triton X—1 O 0, and 0 3 mL of 5% nonidet (P40) was added, the mixture was stirred well, and the cells were completely disrupted by sonic
- GST glutathione S-transferase
- Protein A Sepharose particles (Amersham Pharmacia) 25
- 1 mL of the cell extract (centrifuged supernatant) obtained in Example 1 (1) was added, and the mixture was stirred at 4 ° C for 2 hours.
- the supernatant was removed by centrifugation, washing solution A (0.25moI ZL lithium chloride added to F-lysis solution) was added, and the mixture was stirred gently, and the supernatant was further removed by centrifugation. This operation was then repeated six times to remove non-specific adsorbates.
- the protein A Sepharose particles collected at the end are mixed with 1X kinase reaction solution [1 Wash once with Ommol / LH epes (pH 7.5), 5 Ommo IZL sodium chloride, 5 Ommo IZL-iS-glyceric phosphate, and 1 mmo I ZL dithiosley I ⁇ (DTT)] Was performed.
- Divalent metal ion (2 Ommo I / LM g CI 2 or 2 Ommo I / L—MnCI 2 or both) and Z or 1 ⁇ mo I ZL wortmannin [2 Ommo I / LM g CI 2 or both]
- a buffer solution containing 25 mg of a phytidylinositol 3-kinase (PI 3-kinase) -related protein kinase inhibitor] was added, the mixture was gently stirred, and allowed to stand on ice for about 20 minutes.
- reaction start solution (5 Ci [r- 32 P] ATP and 10 mol ZL- ATP) 25 m
- the protein was denatured by incubating at 100 ° C for 4 minutes. This centrifuged supernatant was used as the following analysis sample.
- the analysis sample was developed by two types of SDS polyacrylamide gel electrophoresis (SDS-PAGE) with a gel concentration of 6% or 12.5%, and then gel After drying, phosphorylated bands were visualized by autoradiography according to a conventional method.
- SDS-PAGE SDS polyacrylamide gel electrophoresis
- a 130 kDa protein p130
- a 70 kDa protein p70
- phosphorylated protein may be binding proteins that are phosphorylated by the kinase activity of hSMG-1.
- Example 2 Separation of He La cell extract by liquid column chromatography and phosphorylation in hSMG-1 immune complex
- HeLa cells were cultured by a conventional method, and the cells were collected in PBS in the same manner as in Example 1 (1). After removing the supernatant by centrifugation, cells containing 0.25% Triton X-100 and a protease inhibitor (0.1 mmo I ZL-PMSF, 10 g gmL mL aprotinin, and 10% gZmL leptin) buffer TG [2 Ommo I ZL— Tris HC I (pH 7.5), 2 mm o IL—EDTA, 2 mmo I ZL— DTT, 1 mmo I ZL sodium orthovanadate , And 10% glycerol] and gently stirred.
- Triton X-100 0.1 mmo I ZL-PMSF, 10 g gmL mL aprotinin, and 10% gZmL leptin
- This cell suspension was transferred to a Potter-type homogenizer, and cells were disrupted by 50 strokes of a polytrafluoroethylene whistle (pest I) to extract proteins.
- a cell extract was obtained by ultracentrifugation (100 OO X g, 60 minutes).
- the cell extract was filtered through a membrane filter (0.22 jWm poresize; Mi II @ pore company) to obtain a sample for analysis.
- curve a shows the absorbance at 280 nm (A 280), that is, the relative concentration of the protein
- line b shows the concentration gradient of sodium chloride.
- the symbol “f” means a fraction
- each digit immediately following “f” and each hand-written digit along the curve a is a fraction number.
- Fig. 4 shows the results.
- the symbols “WB: P” and “WB: C” indicate the results of Western blot using antiserum P and antiserum C, respectively.
- the 15th serine residue (Ser15) and the 37th serine residue (Ser37) in the p53 protein are in a sequence that matches the phosphorylation consensus motif of hSMG-1.
- H is known to be phosphorylated by SMG-1 [Akira Akira Yamashita, “JES & DEVE LO PMENT T” J, (USA), 2001, No. 15 Volume, p.
- the phosphorylation status of the GS Tp53 (1-58) protein was determined by SDS-PAGE and the antibody against the phosphorylated Ser15 in the p53 protein (anti-P-Ser15 antibody; Shieh, SY et al., Cell. I, 91, 325-334, 19997) or an antibody against phosphorylated Ser37 in p53 protein (anti-P-Ser37 antibody; Kitagawa, M. et al., EMBO J., 15, 7060-). 7069, 1 996).
- Fig. 6 shows the results.
- the symbols "WB: -P-Ser15J” and “WB: 1-P-Ser37” are Western blots using an anti-P-Ser15 antibody and an anti-P-Ser37 antibody, respectively. Indicates the result of the blot.
- the symbols “p-Ser15-p53” and “P-Ser37-p53j” are GST-p53 (1-58) proteins in which Ser15 and Ser37 are phosphorylated, respectively. Means
- Example 3 Purification and analysis of h SMG-1 complex using antibody column
- a He La cell extract was prepared in the same manner as in Example 1 (1).
- a 3 mL volume of protein A sepharose (Amersham—Pharmacia) was added to the cell extract, followed by stirring at 4 ° C. for 30 minutes.
- the supernatant was obtained by centrifugation. 25 g of normal egret IgG (Santa Cruz) or anti-hSMG-1 IgG (N antibody) 25 / g purified from antiserum N by a conventional method.
- the above-mentioned centrifugal supernatant was added in half each to A Sepharose 1 O OjUL, and the mixture was stirred at 4 ° C for 2 hours.
- the antiserum N is the N-terminal fragment of h SMG-1
- PVDF polyvinylidene difluoride
- CBB bear dibrillant blue
- the stained protein of 130 kDa (p130) is cut out from the membrane with a knife.
- Known methods eg, Akihiko Iwamatsu, Experimental Medicine, Vo, 17, No. 8, 1999, 1351, p. 351) ⁇ Page 1355 Close-up experimental method “Proteomic analysis using a mass spectrometer J, etc.) Proteolytic enzymes in membrane form, complete digestion with ys-C (lysyl endopeptidase), and MALD I — Mass spectrometry of digested fragments was performed using TOFZMS (Matrix Assisted Laser Excitation Ionization-Time-of-Flight Mass Spectrometer).
- ⁇ 130 was a translation product of ⁇ 026858.1. And was an hSMG-1 binding protein.
- the AKO 26858.1 translation product did not show any homology to a known functional motif.
- the numerical value of the homology is based on BLAST (Basiclocala I in gents search tool; AI tschu I, S. F. et al., J. MoI. Bio, 215, 403-410, 1990). .
- AK026858. 1 DNA which has already been identified by whole length c DN A sequencing project by Sugano Prof. of Tokyo Institute of Medical Science, the plasmid containing the DNA used in this example (P ME (Inserted into 18S) was distributed by the same professor. AK026858. 1 translation product is actually h SMG— 1 conclusion To confirm that it is a synthetic protein, a specific antibody was developed.
- the plasmid containing AK026858.1 was digested with the restriction enzymes SmaI and MscI, and a DNA fragment of 446 base pairs (from amino acid 563 to amino acid 110 in amino acid sequence represented by SEQ ID NO: 2). (Corresponding to the array that becomes).
- This DNA fragment was inserted into the SmaI site of Escherichia coli expression vector pGEX-6P-1 (AmershamPharmamacia), and then introduced into Escherichia coli DH5 strain.
- the E. coli strain having the recombinant plasmid was cultured, and the p130 protein fragment was purified as a fusion protein with GST by a conventional method.
- a rabbit (New Zealand White) was immunized by a conventional method to obtain an antiserum. Furthermore, a specific antibody (anti-AK026858.1 translation product antibody) was isolated from the antiserum by a conventional method (affinity purification method) using an antigen protein.
- a He La cell extract was prepared in the same manner as in Example 1 (1), and was prepared in the same manner as in Example 3 (1), using either normal normal heron serum or anti-hSMG-1 antiserum (antiserum). N, antiserum or antiserum C) were used for immunoprecipitation. After the cell extract and the immune complex were developed by SDS-PAGE, they were analyzed by a Western blot method using the anti-AKO2685.81 translation product antibody prepared in Example 4 (1) according to a conventional method.
- polypeptide of the present invention it is possible to provide a simple screening system for a therapeutic and / or prophylactic agent for a disease state caused by PTC caused by nonsense mutation. Further, the polynucleotide, the expression vector, the transformant, and the antibody of the present invention are useful for producing the polypeptide of the present invention. As described above, the present invention has been described according to the specific embodiments. However, modifications and improvements obvious to those skilled in the art are included in the scope of the present invention.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Genetics & Genomics (AREA)
- Zoology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Immunology (AREA)
- Wood Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biotechnology (AREA)
- Biophysics (AREA)
- Environmental Sciences (AREA)
- Microbiology (AREA)
- General Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Toxicology (AREA)
- Cell Biology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Gastroenterology & Hepatology (AREA)
- Physics & Mathematics (AREA)
- Public Health (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pharmacology & Pharmacy (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Peptides Or Proteins (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003261958A AU2003261958A1 (en) | 2002-09-05 | 2003-09-05 | Smg-1-binding protein and method of screening substance controlling its activity |
| CA002497902A CA2497902A1 (en) | 2002-09-05 | 2003-09-05 | Smg-1 binding protein and screening method for substances that can regulate the activity thereof |
| EP03794253A EP1541684A4 (en) | 2002-09-05 | 2003-09-05 | SMG-1 BINDING PROTEIN AND METHOD FOR SCREENING AN ACTIVITY-CONTROLLING SUBSTANCE |
| US11/072,699 US20050196797A1 (en) | 2002-09-05 | 2005-03-04 | SMG-1 binding protein and screening method for substances that can regulate the activity thereof |
| US11/766,435 US20080081794A1 (en) | 2002-09-05 | 2007-06-21 | Smg-1 binding protein and screening method for substances that can regulate the activity thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002260243A JP4301541B2 (ja) | 2002-09-05 | 2002-09-05 | Smg−1結合タンパク質及びその活性を制御する物質のスクリーニング方法 |
| JP2002-260243 | 2002-09-05 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/072,699 Continuation-In-Part US20050196797A1 (en) | 2002-09-05 | 2005-03-04 | SMG-1 binding protein and screening method for substances that can regulate the activity thereof |
| US11/766,435 Continuation-In-Part US20080081794A1 (en) | 2002-09-05 | 2007-06-21 | Smg-1 binding protein and screening method for substances that can regulate the activity thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004022752A1 true WO2004022752A1 (ja) | 2004-03-18 |
Family
ID=31973090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/011353 Ceased WO2004022752A1 (ja) | 2002-09-05 | 2003-09-05 | Smg−1結合タンパク質及びその活性を制御する物質のスクリーニング方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US20050196797A1 (ja) |
| EP (1) | EP1541684A4 (ja) |
| JP (1) | JP4301541B2 (ja) |
| AU (1) | AU2003261958A1 (ja) |
| CA (1) | CA2497902A1 (ja) |
| WO (1) | WO2004022752A1 (ja) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1074617A2 (en) * | 1999-07-29 | 2001-02-07 | Helix Research Institute | Primers for synthesising full-length cDNA and their use |
| WO2002031111A2 (en) * | 2000-10-12 | 2002-04-18 | Hyseq, Inc. | Novel nucleic acids and polypeptides |
| WO2002095025A1 (fr) * | 2001-05-24 | 2002-11-28 | Japan Science And Technology Agency | Nouveau smg-1 |
-
2002
- 2002-09-05 JP JP2002260243A patent/JP4301541B2/ja not_active Expired - Fee Related
-
2003
- 2003-09-05 AU AU2003261958A patent/AU2003261958A1/en not_active Abandoned
- 2003-09-05 CA CA002497902A patent/CA2497902A1/en not_active Abandoned
- 2003-09-05 EP EP03794253A patent/EP1541684A4/en not_active Withdrawn
- 2003-09-05 WO PCT/JP2003/011353 patent/WO2004022752A1/ja not_active Ceased
-
2005
- 2005-03-04 US US11/072,699 patent/US20050196797A1/en not_active Abandoned
-
2007
- 2007-06-21 US US11/766,435 patent/US20080081794A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1074617A2 (en) * | 1999-07-29 | 2001-02-07 | Helix Research Institute | Primers for synthesising full-length cDNA and their use |
| WO2002031111A2 (en) * | 2000-10-12 | 2002-04-18 | Hyseq, Inc. | Novel nucleic acids and polypeptides |
| WO2002095025A1 (fr) * | 2001-05-24 | 2002-11-28 | Japan Science And Technology Agency | Nouveau smg-1 |
Non-Patent Citations (6)
| Title |
|---|
| AKEO YAMASHITA ET AL.: "mRNA surveillance idenshi hen'i ni taisuru fuhenteki na saibo no bogyo kiko, protein", NUCLEIC ACID AND ENZYME, vol. 47, no. 2, 1 February 2002 (2002-02-01), pages 101 - 112, XP002975453 * |
| CHIU S.Y. ET AL.: "Characterization of human Smg5/7a: a protein with similarities to caenorhabditis elegans SMG5 and SMG7 that funtions in the dephosphorylation of Upf1", RNA, vol. 9, no. 1, January 2003 (2003-01-01), pages 77 - 87, XP002974814 * |
| DENNING G. ET AL.: "Cloning of a novel phosphatidylinositol kinase-related kinase", J. BIOL. CHEM., vol. 276, no. 25, 22 June 2001 (2001-06-22), pages 22709 - 22714, XP002974812 * |
| See also references of EP1541684A4 * |
| TETSUO INISHI ET AL.: "Shinki P13K kanren kyodai protein kinase no kozo to kino no kaiseki", DAI 22 KAI THE MOLECULAR BIOLOGY SOCIETY OF JAPAN NENKAI PROGRAM.KOEN YOSHISHU (W2I-7), 22 November 1999 (1999-11-22), pages 235, XP002975454 * |
| YAMASHITA A. ET AL.: "Human SMG-1, a novel phosphatidylinositol 3-kinase-related protein kinase, associates with components of the mRNA surveillance complex and is involved in the regulation of nonsense-mediated mRNA decay", GENES DEV., vol. 15, no. 17, 1 September 2001 (2001-09-01), pages 2215 - 2228, XP002974813 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20080081794A1 (en) | 2008-04-03 |
| AU2003261958A1 (en) | 2004-03-29 |
| CA2497902A1 (en) | 2004-03-18 |
| US20050196797A1 (en) | 2005-09-08 |
| JP2004097029A (ja) | 2004-04-02 |
| JP4301541B2 (ja) | 2009-07-22 |
| EP1541684A1 (en) | 2005-06-15 |
| EP1541684A4 (en) | 2006-07-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1351968B1 (en) | Sodium-channel alpha1-subunit and their polypeptides and their treatment of generalised epilepsy with febrile seizures plus | |
| CA2406884C (en) | Novel collectins | |
| EP1197554A1 (en) | Proliferation differentiation factor | |
| CN112041349A (zh) | 抗整合素α11单克隆抗体及其应用 | |
| US6586581B1 (en) | Prolactin regulatory element binding protein and uses thereof | |
| JPH0956380A (ja) | アシアロ糖蛋白質受容体誘導体及びその使用 | |
| EP1284289A1 (en) | Method of examining allergic disease | |
| WO2004022752A1 (ja) | Smg−1結合タンパク質及びその活性を制御する物質のスクリーニング方法 | |
| JP2007135441A (ja) | 新規タンパク質及びそれをコードする遺伝子 | |
| CA2710760C (en) | Cynomolgus toll-like receptor 3 | |
| US7544485B2 (en) | Baldness related gene and the polypeptide encoded thereby, and uses | |
| CN102766202B (zh) | Phf14 c端蛋白、其多克隆抗体及应用 | |
| CN1313297A (zh) | 具有抑制癌细胞生长功能的新的人蛋白及其编码序列 | |
| EP1369478A1 (en) | Novel scavenger receptor class a protein | |
| JP2005526516A (ja) | ヒト精神分裂病における欠損遺伝子1のマウスオルソログ | |
| JP2003533230A (ja) | SSA−56kDaポリペプチドとその断片、および前記ポリペプチドをコードするポリヌクレオチドと治療のための用途 | |
| CN1342713A (zh) | 人长寿保障蛋白和编码序列及其用途 | |
| WO2003018776A9 (en) | IDENTIFICATION OF THE IκBNS PROTEIN AND ITS PRODUCTS | |
| WO1997047172A1 (en) | Vitamin d receptor isoform protein | |
| WO2002098908A9 (en) | Osteoclastogenesis inhibitory factor, sequence coding for it and uses | |
| WO2002020585A1 (fr) | Nouveau polypeptide, suppresseur de la transmission de signaux par la cytokine socs-5-29, et polynucleotide codant ce polypeptide | |
| WO1998046745A1 (fr) | NOUVELLE MOLECULE DE LA FAMILLE dlg, POLYNUCLEOTIDE CODANT CETTE MOLECULE, ANTICORPS DIRIGE CONTRE ELLE ET PROCEDE DE DETECTION DE GENE dlg | |
| JPWO1999009158A1 (ja) | Znフィンガー様モチーフを有するタンパク質 | |
| WO1999009060A1 (fr) | PROTEINE 1(3)mbt, POLYNUCLEOTIDE CODANT POUR LADITE PROTEINE, SON POLYNUCLEOTIDE ANTISENSE ET ANTICORPS RECONNAISSANT LADITE PROTEINE | |
| CN101200720A (zh) | 线粒体膜电位下降相关的多核苷酸及其编码多肽和用途 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU CA US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2497902 Country of ref document: CA Ref document number: 11072699 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2003261958 Country of ref document: AU |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2003794253 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 2003794253 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 11766435 Country of ref document: US |
|
| WWP | Wipo information: published in national office |
Ref document number: 11766435 Country of ref document: US |