WO2001074879A1 - Nouveau polypeptide, proteine ribosomale humaine s3-12, et polynucleotide codant pour ce polypeptide - Google Patents
Nouveau polypeptide, proteine ribosomale humaine s3-12, et polynucleotide codant pour ce polypeptide Download PDFInfo
- Publication number
- WO2001074879A1 WO2001074879A1 PCT/CN2001/000409 CN0100409W WO0174879A1 WO 2001074879 A1 WO2001074879 A1 WO 2001074879A1 CN 0100409 W CN0100409 W CN 0100409W WO 0174879 A1 WO0174879 A1 WO 0174879A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polypeptide
- polynucleotide
- ribosomal protein
- human ribosomal
- sequence
- 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
- 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
- C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- C07K14/47—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- the present invention belongs to the field of biotechnology. Specifically, the present invention describes a novel polypeptide ⁇ ribosomal protein S3-12, and a polynucleotide sequence encoding the polypeptide. The invention also relates to a preparation method and application of the polynucleotide and polypeptide.
- Ribosome protein S3 (RS3: r ibosome protein s 3) is a component located on the small subunit of the ribosome and is involved in the initiation of translation. In eukaryotic cells, it can crosslink with elF-2 and elF-3, and may be directly involved in the interaction of ribosomal mRM-aminoacyl tRNA during translation. But RS3 may have other functions besides this.
- RS3 In Drosophila, mutations in the gene encoding RS3 will produce a recessive and lethal phenotype and a dominant microphenotype.
- human small nuclear RNA, U15A is transcribed from the intron of the gene encoding RS3. Pogue-Gei le et al. Found that RS 3 is overexpressed in rectal colon cancer cells.
- RS3 protein is also involved in DNA repair, a function that has been studied more in recent years. However, only human and insect RS3 proteins have been reported.
- 8-oxoguanylic acid (abbreviated as 8-oxo-G). It is a highly mutated form of base modification caused by oxygen pressure. The incorporation of this base-modified form results in G-T conversion.
- Base excision repair is the main form of repair for this type of DM injury.
- the mutated base is released from the nucleotide chain by N-glycosyltransferase activity, and a purine / apyrimidine (AP: apurine / apyr imidine) site is formed locally.
- AP purine / apyrimidine
- Most N-glycosyltransferases also have AP lyase activity, which cuts the phosphodiester bond through ⁇ and ⁇ elimination reactions, thereby forming a nucleotide gap locally and repaired by DNA polymerase.
- Drosophila RS3 protein has N-glycosyltransferase and AP lyase activity in vitro and in vivo, and can repair damaged DNA. The same was found in human RS3 protein.
- Xeroderma pigmentosa is a serious genetic disease. Due to the deletion or mutation of the gene encoding AP endonuclease I in patients, the damage caused by ultraviolet rays cannot be repaired, and in such patients, it has not been detected. RS 3 activity, although there was no significant change in RS 3 expression. The role of RS 3 protein in this genetic disease needs further study.
- Fanc ini's anemia is a genetic disease with the development of leukemia and solid tumors. Elevated 8-oxo-G levels and reduced RS 3 in these patients suggest that changes in RS 3 may be the cause of Fanconi's anemia.
- RS3 expression was also found to be increased in adenomatous polyps and colorectal cancer.
- ribosomal proteins S6, S8, S12, L5, L25, and L26 are also added.
- adenoma-like polyps are generally considered to be precancerous lesions of colorectal cancer, changes in ribosomes are an early event of malignancy.
- the RS 3 protein In terms of the overall function of the RS 3 protein, it can both repair DNA damage and participate in protein translation.
- the RS 3 protein has a nuclear localization signal, and it enters the cytoplasm after assembling pre-ribosomal particles in the nucleus. It can also be recruited into the nucleus during DNA damage repair. So the dual function of RS 3 protein is possible.
- the intron transcription product of the coding gene of RS 3 protein is snRM, suggesting that there is a certain relationship between MA splicing and the regulation of translation.
- the human ribosomal protein S 3- 12 protein plays an important role in regulating important functions of the body such as cell division and embryonic development, and it is believed that a large number of proteins are involved in these regulatory processes, so there has been a need to identify more participation in the field
- These processes are the human ribosomal protein S 3-12 protein, and in particular the amino acid sequence of this protein is identified.
- the isolation of the new human ribosomal protein S 3-12 protein encoding gene also provides a basis for research to determine the role of this protein in health and disease states. This protein may form the basis for developing diagnostic and / or therapeutic drugs for the disease, so isolating its coding DNA is important.
- Another object of the invention is to provide a polynucleotide encoding the polypeptide.
- Another object of the present invention is to provide a method for producing human ribosomal protein S 3-12.
- Another object of the present invention is to provide antibodies against the polypeptide of the present invention, human ribosomal protein S 3- 12.
- Another object of the present invention is to provide mimic compounds, antagonists, agonists, and inhibitors against the polypeptide of the present invention, human ribosomal protein S 3-12.
- Another object of the present invention is to provide a method for diagnosing and treating a disease associated with abnormality of human ribosomal protein S 3-12. Fa. Ming summary
- the present invention relates to an isolated polypeptide, which is of human origin and comprises: a polypeptide having the amino acid sequence of SEQ ID No. 2, or a conservative variant, biologically active fragment or derivative thereof.
- the polypeptide is a polypeptide having the amino acid sequence of SEQ ID NO: 2.
- the invention also relates to an isolated polynucleotide comprising a nucleotide sequence or a variant thereof selected from the group consisting of:
- sequence of the polynucleotide is one selected from the group consisting of: (a) a sequence having positions 888-1217 in SEQ ID NO: 1; and (b) a sequence having 1-2378 in SEQ ID NO: 1 Sequence of bits.
- the present invention further relates to a vector, particularly an expression vector, containing the polynucleotide of the present invention; a host cell genetically engineered with the vector, including a transformed, transduced or transfected host cell; Host cell and method of preparing the polypeptide of the present invention by recovering the expression product.
- the invention also relates to an antibody capable of specifically binding to a polypeptide of the invention.
- the invention also relates to a method for screening compounds that mimic, activate, antagonize or inhibit the activity of human ribosomal protein S 3-12 protein, which comprises utilizing the polypeptide of the invention.
- the invention also relates to compounds obtained by this method.
- the present invention also relates to a method for detecting a disease or disease susceptibility related to abnormal expression of human ribosomal protein S 3-12 protein in vitro, comprising detecting a mutation in the polypeptide or a polynucleotide sequence encoding the same in a biological sample, or Detection of the amount or biological activity of a polypeptide of the invention in a biological sample.
- the present invention also relates to a pharmaceutical composition, which contains the polypeptide of the present invention or a mimic, activator, antagonist Antibiotics or inhibitors and pharmaceutically acceptable carriers.
- the present invention also relates to the use of the polypeptide and / or polynucleotide of the present invention in the preparation of a medicament for treating cancer, developmental disease or immune disease or other diseases caused by abnormal expression of human ribosomal protein S 3-12.
- FIG. 1 is a comparison diagram of gene chip expression profiles of human ribosomal protein S 3-12 and human RS 3 protein 13 of the present invention.
- the upper graph is a graph of the expression profile of human ribosomal protein S 3-12, and the lower graph is the graph of the expression profile of human S 3 protein 13.
- 1 indicates fetal kidney
- 2 indicates fetal large intestine
- 3 indicates fetal small intestine
- 4 indicates fetal muscle
- 5 indicates fetal brain
- 6 indicates fetal bladder
- 7 indicates non-starved L02
- 8 indicates L02 +, lhr, As 3+
- 9 indicates ECV 304 PMA-
- 10 means ECV 304 PMA +
- 11 means fetal liver
- 12 means normal liver
- 13 means thyroid
- 14 means skin
- 15 means fetal lung
- 16 means lung
- 17 means lung cancer
- 18 means fetal spleen
- 19 means spleen
- 20 means prostate
- 21 means fetal heart
- 22 means heart
- 23 means muscle
- 24 means testis
- 25 means fetal thymus
- 26 means thymus.
- Figure 2 shows the polyacrylamide gel electrophoresis (SDS-PAGE) of the isolated human ribosomal protein S 3-12. 12kDa is the molecular weight of the protein. The arrow indicates the isolated protein band.
- Nucleic acid sequence refers to an oligonucleotide, a nucleotide or a polynucleotide and a fragment or part thereof, and may also refer to a genomic or synthetic DNA or RNA, they can be single-stranded or double-stranded, representing the sense or antisense strand.
- amino acid sequence refers to an oligopeptide, peptide, polypeptide or protein sequence and fragments or portions thereof.
- amino acid sequence in the present invention relates to the amino acid sequence of a naturally occurring protein molecule, such "polypeptide” or “protein” does not mean to limit the amino acid sequence to a complete natural amino acid related to the protein molecule .
- a protein or polynucleotide “variant” refers to an amino acid sequence having one or more amino acids or nucleotide changes, or a polynucleotide sequence encoding it.
- the changes may include deletions, insertions or substitutions of amino acids or nucleotides in the amino acid sequence or nucleotide sequence.
- Variants can have "conservative" changes, which The amino acid substituted in the amino acid has a structural or chemical property similar to that of the original amino acid, such as replacing isoleucine with leucine.
- Variants can also have non-conservative changes, such as replacing glycine with tryptophan.
- “Deletion” refers to the deletion of one or more amino acids or nucleotides in an amino acid sequence or nucleotide sequence.
- Insertion means that a change in the amino acid sequence or nucleotide sequence results in an increase in one or more amino acids or nucleotides compared to a molecule that exists in nature.
- Replacement refers to the replacement of one or more amino acids or nucleotides with different amino acids or nucleotides.
- Bioactivity refers to a protein that has the structure, regulation, or biochemical function of a natural molecule.
- immunologically active refers to the ability of natural, recombinant or synthetic proteins and fragments thereof to induce a specific immune response and to bind specific antibodies in a suitable animal or cell.
- An "agonist” refers to a molecule that, when combined with human ribosomal protein S3-12, can cause the protein to change and thereby regulate the activity of the protein.
- An agonist may include a protein, a nucleic acid, a carbohydrate, or any other molecule that binds human ribosomal protein S 3-12.
- Antagonist refers to a molecule that, when combined with human ribosomal protein S 3-12, can block or regulate the biological or immunological activity of human ribosomal protein S3-12.
- Antagonists and inhibitors may include proteins, nucleic acids, carbohydrates or any other molecule that binds human ribosomal protein S3-12.
- Regular refers to a change in the function of human ribosomal protein S3-12, including an increase or decrease in protein activity, a change in binding characteristics, and any other biological, functional, or immune properties of human ribosomal protein S3--12 change.
- substantially pure ' means essentially free of other proteins, lipids, carbohydrates or other substances with which it is naturally associated.
- Those skilled in the art can purify human ribosomal protein S3- 12 using standard protein purification techniques. Basic The pure human ribosomal protein S3- 12 can generate a single main band on a non-reducing polyacrylamide gel. The purity of human ribosomal protein S3-12 can be analyzed by amino acid sequence.
- Complementary refers to the natural binding of polynucleotides by base-pairing under conditions of acceptable salt concentration and temperature.
- sequence C-T-G-A
- complementary sequence G-A-C-T.
- the complementarity between two single-stranded molecules may be partial or complete.
- the degree of complementarity between nucleic acid strands has a significant effect on the efficiency and strength of hybridization between nucleic acid strands.
- “Homology” refers to the degree of complementarity and can be partially homologous or completely homologous.
- Partial homology refers to a partially complementary sequence that at least partially inhibits hybridization of a fully complementary sequence to a target nucleic acid. The inhibition of such hybridization can be detected by performing hybridization (Southern blotting or Northern blotting, etc.) under conditions of reduced stringency.
- Substantially homologous sequences or hybridization probes can compete and suppress Binding of a homologous sequence to a target sequence under conditions of reduced stringency. This does not mean that the conditions of reduced stringency allow non-specific binding, because the conditions of reduced stringency require that the two sequences bind to each other as a specific or selective interaction.
- Percent identity refers to the percentage of sequences that are the same or similar in a comparison of two or more amino acid or nucleic acid sequences. Percent identity can be determined electronically, such as through the MEGALIGN program
- the MEGALIGN program can compare two or more sequences (Higg ins, D. G. and
- the Clus ter method arranges groups of sequences into clusters by checking the distance between all pairs. The clusters are then assigned in pairs or groups. The percent identity between two amino acid sequences such as sequence A and sequence B is calculated by the following formula:
- the assay may be Jotun Hein percent identity between nucleic acid sequences Clus ter or a method well known in the art (Hein J., (1990) Methods in enzymology 183: 625-645) 0
- Similarity refers to the degree of identical or conservative substitutions of amino acid residues at corresponding positions in the alignment of amino acid sequences.
- Amino acids used for conservative substitution for example, negatively charged amino acids may include aspartic acid and glutamic acid; positively charged amino acids may include lysine and arginine; having an uncharged head group is Similar hydrophilic amino acids may include leucine, isoleucine and valine; glycine and alanine; asparagine and glutamine; serine and threonine; phenylalanine and tyrosine.
- Antisense refers to a nucleotide sequence that is complementary to a particular DNA or RNA sequence.
- Antisense strand refers to a nucleic acid strand that is complementary to a “sense strand.”
- Derivative refers to HFP or a chemical modification of its nucleic acid. This chemical modification may be the replacement of a hydrogen atom with an alkyl, acyl or amino group. Nucleic acid derivatives can encode polypeptides that retain the main biological properties of natural molecules.
- Antibody refers to a complete antibody molecule and its fragments, such as Fa,? ( ⁇ ') 2 and?, Which specifically bind to the epitope of human ribosomal protein S3--12.
- a “humanized antibody” refers to an antibody in which the amino acid sequence of a non-antigen binding region is replaced to become more similar to a human antibody, but still retains the original binding activity.
- isolated refers to the removal of a substance from its original environment (for example, its natural environment if it occurs naturally).
- a naturally occurring polynucleotide or polypeptide is not isolated when it is present in a living animal, but the same polynucleotide or polypeptide is separated from some or all of the substances that coexist with it in the natural system.
- Such a polynucleotide may be part of a vector, It is also possible that such a polynucleotide or polypeptide is part of a certain composition. Since the carrier or composition is not a component of its natural environment, they are still isolated.
- isolated refers to the separation of a substance from its original environment (if it is a natural substance, the original environment is the natural environment).
- polynucleotides and polypeptides in a natural state in a living cell are not isolated and purified, but the same polynucleotides or polypeptides are separated and purified if they are separated from other substances in the natural state .
- isolated human ribosomal protein S3-12 means that human ribosomal protein S3-12 is essentially free of other proteins, lipids, sugars or other substances with which it is naturally associated. Those skilled in the art can purify human ribosomal protein S3- 12 using standard protein purification techniques. Substantially pure polypeptides can produce a single main band on a non-reducing polyacrylamide gel. The purity of the human ribosomal protein S3-12 peptide can be analyzed by amino acid sequence.
- the present invention provides a new polypeptide-human ribosomal protein S 3--12, which is basically composed of the amino acid sequence shown in SEQ ID NO: 2.
- the polypeptide of the present invention may be a recombinant polypeptide, a natural polypeptide, a synthetic polypeptide, and preferably a recombinant polypeptide.
- the polypeptides of the present invention can be naturally purified products or chemically synthesized products, or can be produced from prokaryotic or eukaryotic hosts (eg, bacteria, yeast, higher plants, insects, and mammalian cells) using recombinant techniques. Depending on the host used in the recombinant production protocol, the polypeptide of the invention may be glycosylated, or it may be non-glycosylated. Polypeptides of the invention may also include or exclude starting methionine residues.
- the invention also includes fragments, derivatives and analogs of the human ribosomal protein S3-12.
- fragment refers to a polypeptide that substantially maintains the same biological function or activity of the human ribosomal protein S3-12 of the present invention.
- a fragment, derivative or analog of the polypeptide of the present invention may be: (I) a kind in which one or more amino acid residues are substituted with conservative or non-conservative amino acid residues (preferably conservative amino acid residues), and the substitution
- the amino acid may or may not be encoded by a genetic codon; or ( ⁇ ) a type in which a group on one or more amino acid residues is replaced by another group to include a substituent; or ( ⁇ ⁇ )
- Such a polypeptide sequence in which the mature polypeptide is fused with another compound such as a compound that prolongs the half-life of the polypeptide, such as polyethylene glycol
- a polypeptide sequence in which an additional amino acid sequence is fused into the mature polypeptide (Such as the leader or secretory sequence or the sequence used to purify the polypeptide or protease sequence)
- such fragments, derivatives and analogs are considered to be within the knowledge of those skilled in the art.
- the present invention provides an isolated nucleic acid (polynucleotide), which basically consists of a polynucleotide encoding a polypeptide having the amino acid sequence of SEQ ID NO: 2.
- the polynucleotide sequence of the present invention includes the nucleotide sequence of SEQ ID NO: 1.
- the polynucleotide of the present invention is found from a cDNA library of human fetal brain tissue. It packs The polynucleotide sequence is 2378 bases in length and its open reading frame 888-1217 encodes 109 amino acids. According to the comparison of gene chip expression profiles, it was found that this polypeptide has a similar expression profile to human RS 3 protein 13, and it can be deduced that the human ribosomal protein S3-12 has similar functions to human RS3 protein 13.
- the polynucleotide of the present invention may be in the form of DNA or RNA.
- DM forms include cDNA, genomic DM, or synthetic DM.
- DNA can be single-stranded or double-stranded.
- DNA can be coding or non-coding.
- the coding region sequence encoding a mature polypeptide may be the same as the coding region sequence shown in SEQ ID NO: 1 or a degenerate variant.
- a "degenerate variant" refers to a nucleic acid sequence encoding a protein or polypeptide having SEQ ID NO: 2 but different from the coding region sequence shown in SEQ ID NO: 1 in the present invention.
- the polynucleotide encoding the mature polypeptide of SEQ ID NO: 2 includes: only the coding sequence of the mature polypeptide; the coding sequence of the mature polypeptide and various additional coding sequences; the coding sequence of the mature polypeptide (and optional additional coding sequences); Coding sequence.
- polynucleotide encoding a polypeptide refers to a polynucleotide comprising the polypeptide and a polynucleotide comprising additional coding and / or non-coding sequences.
- the invention also relates to variants of the polynucleotides described above, which encode polypeptides or fragments, analogs and derivatives of polypeptides having the same amino acid sequence as the invention.
- Variants of this polynucleotide can be naturally occurring allelic variants or non-naturally occurring variants. These nucleotide variants include substitution variants, deletion variants, and insertion variants.
- an allelic variant is an alternative form of a polynucleotide that may be a substitution, deletion, or insertion of one or more nucleotides, but does not substantially change the function of the polypeptide it encodes .
- the present invention also relates to a polynucleotide that hybridizes to the sequence described above (having at least 50%, preferably 70% identity, between the two sequences).
- the present invention particularly relates to polynucleotides that can hybridize to the polynucleotides of the present invention under stringent conditions.
- "strict conditions” means: (1) hybridization and elution at lower ionic strength and higher temperature, such as 0.2xSSC, 0.1% SDS, 60 ° C; or (2) L Hybridization; 3 ⁇ 4 denaturant, such as 50% (v / v) formamide, 0.1% calf serum / 0.1 ° /.
- Hybridization occurs only when the identity between the two sequences is at least 95% or more, and more preferably 97% or more.
- the polypeptide encoded by the hybridizable polynucleotide has the same biological function and activity as the mature polypeptide shown in SEQ ID NO: 2.
- nucleic acid fragments that hybridize to the sequences described above.
- a "nucleic acid fragment” contains at least 10 nucleotides in length, preferably at least 20-30 nucleotides, more preferably at least 50-60 nucleotides, and most preferably at least 100 nuclei. Glycylic acid or more. Nucleic acid fragments can also be used in nucleic acid amplification techniques, such as PCR, to identify and / or isolate polynucleotides encoding human ribosomal protein S 3-12.
- the polypeptides and polynucleotides in the present invention are preferably provided in an isolated form and are more preferably purified to homogeneity.
- polynucleotide sequence encoding the human ribosomal protein S 3- 12 of the present invention can be obtained by various methods.
- polynucleotides are isolated using hybridization techniques well known in the art. These techniques include, but are not limited to: 1) hybridization of probes to genomic or cDNA libraries to detect homologous polynucleotide sequences, and 2) antibody screening of expression libraries to detect cloned polynucleosides with common structural characteristics Acid fragments.
- the DM fragment sequence of the present invention can also be obtained by the following methods: 1) isolating the double-stranded DM sequence from the DM of the genome; 2) chemically synthesizing the DNA sequence to obtain the double-stranded DM of the polypeptide.
- genomic DNA isolation is the least commonly used. Direct chemical synthesis of DNA sequences is often the method of choice. The more commonly used method is the isolation of cDNA sequences.
- the standard method for isolating the cDNA of interest is to isolate mRNA from donor cells that overexpress the gene and perform reverse transcription to form a plasmid or phage cDNA library.
- Various methods have been used to extract mRNA, and kits are also commercially available (Qiagene).
- the construction of cDNA libraries is also a common method (Sambrook, et al., Molecular Cloning, A Laboratory Manua, Cold Spring Harbor Laboratory. New York, 1989).
- Commercially available cDNA libraries are also available, such as different cDNA libraries from Clontech. When polymerase reaction technology is used in combination, even very small expression products can be cloned.
- genes of the present invention can be screened from these cDNA libraries by conventional methods. These methods include (but are not limited to): (l) DNA-DNA or DNA-MA hybridization; (2) the presence or loss of marker gene function; (3) determination of the level of the human ribosomal protein S3-12 transcript; ( 4) Detecting gene-expressed protein products by immunological techniques or by measuring biological activity. The above methods can be used singly or in combination.
- the probe used for hybridization is homologous to any part of the polynucleotide of the present invention, and its length is at least 10 nucleotides, preferably at least 30 nucleotides, more preferably At least 50 nucleotides, preferably at least 100 nucleotides.
- the length of the probe is usually within 2000 nucleotides, preferably within 1000 nucleotides.
- the probe used here is generally a DNA sequence chemically synthesized based on the gene sequence information of the present invention.
- the genes or fragments of the present invention can of course be used as probes.
- DNA probes can be labeled with radioisotopes, luciferin, or enzymes (such as alkaline phosphatase).
- immunological techniques such as Western blotting, radioimmunoprecipitation, and enzyme-linked immunosorbent assay (ELISA) can be used to detect the protein product of human ribosomal protein S3-12 gene expression.
- ELISA enzyme-linked immunosorbent assay
- a method (Sa iki, et al. Science 1985; 230: 1350-1354) using PCR technology to amplify DM / RM is preferred for obtaining the gene of the present invention.
- the RACE method RACE-cDNA terminal rapid amplification method
- the primers used for PCR can be appropriately based on the polynucleotide sequence information of the present invention disclosed herein Select and synthesize using conventional methods.
- the amplified DNA / RM fragments can be isolated and purified by conventional methods such as by gel electrophoresis.
- polynucleotide sequence of the gene of the present invention or various DNA fragments and the like obtained as described above can be determined by a conventional method such as dideoxy chain termination method (Sanger et al. PNAS, 1977, 74: 5463-5467). Such polynucleotide sequences can also be determined using commercial sequencing kits and the like. In order to obtain the full-length cDNA sequence, sequencing must be repeated. Sometimes it is necessary to determine the cDNA sequence of multiple clones in order to splice into a full-length cDNA sequence.
- the present invention also relates to a vector comprising the polynucleotide of the present invention, and a host cell produced by genetic engineering using the vector of the present invention or directly using a human ribosomal protein S3- 12 coding sequence, and a recombinant technology for producing a polypeptide of the present invention. method.
- the polynucleotide sequence encoding human ribosomal protein S3- 12 can be inserted into a vector to constitute a recombinant vector containing the polynucleotide of the present invention.
- vector refers to bacterial plasmids, phages, yeast plasmids, plant cell viruses, mammalian cell viruses such as adenoviruses, retroviruses, or other vectors well known in the art.
- Vectors suitable for use in the present invention include, but are not limited to: T7 promoter-based expression vectors (Rosenberg, et al.
- any plasmid and vector can be used to construct a recombinant expression vector.
- An important feature of expression vectors is that they usually contain an origin of replication, a promoter, a marker gene, and translational regulatory elements.
- Methods known to those skilled in the art can be used to construct expression vectors containing a DNA sequence encoding human ribosomal protein S3-12 and appropriate transcription / translation regulatory elements. These methods include in vitro recombinant DM technology, DM synthesis technology, in vivo recombination technology, etc. (Safflbroook, et al. Molecular Cloning, a Laboratory Manua, Cold Spring Harbor Laboratory. New York, 1989).
- the DNA sequence can be operably linked to an appropriate promoter in an expression vector to guide mRNA synthesis. Representative examples of these promoters are: the lac or trp promoter of E.
- the expression vector also includes a ribosome binding site and a transcription terminator for translation initiation. Insertion of enhancer sequences into the vector will enhance its transcription in higher eukaryotic cells. Enhancers are cis-acting factors expressed by DM, usually about 10 to 300 base pairs, which act on promoters to enhance gene transcription.
- Illustrative examples include SV40 enhancers of 100 to 270 base pairs on the late side of the origin of replication, polyoma enhancers on the late side of the origin of replication, and adenoviral enhancers.
- the expression vector preferably contains one or more selectable marker genes to provide phenotypic traits for selection of transformed host cells, such as dihydrofolate reductase, neomycin resistance, and green for eukaryotic cell culture Fluorescent protein (GFP), or tetracycline or ampicillin resistance for E. coli.
- a polynucleotide encoding human ribosomal protein S3-12 or a recombinant vector containing the polynucleotide can be transformed or transduced into a host cell to constitute a genetically engineered host cell containing the polynucleotide or the recombinant vector.
- the term "host cell” refers to a prokaryotic cell, such as a bacterial cell; or a lower eukaryotic cell, such as a yeast cell; or a higher eukaryotic cell, such as a mammalian cell. Representative examples are: E.
- coli Streptomyces
- bacterial cells such as Salmonella typhimurium
- fungal cells such as yeast
- plant cells such as fly S2 or Sf9
- animal cells such as CH0, COS or Bowes melanoma cells.
- Transformation of a host cell with a DNA sequence according to the present invention or a recombinant vector containing the DM sequence can be performed using conventional techniques well known to those skilled in the art.
- the host is a prokaryote such as E. coli
- competent cells capable of absorbing DM can be harvested and used after exponential growth.
- the 12 method is used, and the steps used are well known in the art.
- MgCl 2 can be used.
- the transformation can also be performed by electroporation.
- Staining method calcium phosphate co-precipitation method, or conventional mechanical methods such as microinjection, electroporation, liposome packaging, etc.
- the polynucleotide sequence of the present invention can be used to express or produce recombinant human ribosomal protein S 3-12 (Science, 1984; 224: 1431). Generally there are the following steps:-
- the medium used in the culture may be selected from various conventional mediums. Culture is performed under conditions suitable for host cell growth. After the host cells have grown to an appropriate cell density, the selected promoter is induced by a suitable method (such as temperature conversion or chemical induction), and the cells are cultured for a period of time.
- a suitable method such as temperature conversion or chemical induction
- the recombinant polypeptide may be coated in a cell, expressed on a cell membrane, or secreted outside the cell.
- recombinant proteins can be isolated and purified by various separation methods using their physical, chemical, and other properties. These methods are well known to those skilled in the art. These methods include, but are not limited to: conventional renaturation treatment, protein precipitant treatment (salting out method), centrifugation, osmotic bacteria, Ultrasonication, ultracentrifugation, molecular sieve chromatography (gel filtration), adsorption chromatography, ion exchange chromatography, high performance liquid chromatography (HPLC) and various other liquid chromatography techniques and combinations of these methods.
- polypeptides of the present invention as well as antagonists, agonists and inhibitors of the polypeptides, can be directly used in the treatment of diseases, for example, they can treat malignant tumors, adrenal deficiency, skin diseases, various types of inflammation, HIV infection, and immune diseases.
- polypeptides of the present invention can be directly used in the treatment of diseases, for example, they can treat malignant tumors, adrenal deficiency, skin diseases, various types of inflammation, HIV infection, and immune diseases. '
- the ribosomal protein S3 (RS 3: r ibosome prote in s 3) is a component located in the small subunit of the ribosome and is involved in the initiation of translation. In eukaryotic cells, it can crosslink with the initiation factors eIF-2 and elF-3, and may be directly involved in the interaction of ribosomal mRM-aminoacyl tRNA during translation. In addition, human small nucleus RM, U15A is transcribed from the intron of the RS3 coding gene.
- Drosophila RS3 protein has N-glycosyltransferase and AP lyase activity in vitro and in vivo, and can repair damaged DNA. The same was found in human RS3 protein. Pogue-Gei le et al. Found that RS3 is overexpressed in rectal colon cancer cells. Abnormal RS3 expression is closely related to xeroderma pigmentosa, Fancini's anemia, adenomatous polyps, and colorectal cancer.
- polypeptide of the present invention contains a specific conserved sequence necessary for RS3 protein activity mot if.
- abnormal expression of the specific RS3 protein mot if will cause abnormal function of the polypeptide containing the mot if of the present invention, resulting in abnormal DM repair function, errors in protein translation, and related diseases such as tumors, tumors, Embryo development disorders, growth disorders, etc.
- human ribosomal protein S3-12 of the present invention will produce various diseases, especially xeroderma pigmentosa, Fancini's anemia, adenoma-like polyps, colorectal cancer, other tumors, and embryonic developmental disorders.
- diseases especially xeroderma pigmentosa, Fancini's anemia, adenoma-like polyps, colorectal cancer, other tumors, and embryonic developmental disorders.
- these diseases include but are not limited to:
- Embryonic disorders congenital abortion, cleft palate, limb loss, limb differentiation disorder, hyaline membrane disease, atelectasis, polycystic kidney, double ureter, cryptorchidism, congenital inguinal hernia, double uterus, vaginal atresia, suburethral Fissure, hermaphroditism, atrial septal defect, ventricular septal defect, pulmonary stenosis, arterial duct occlusion, neural tube defect, congenital hydrocephalus, iris defect, congenital cataract, congenital glaucoma or cataract, congenital deafness
- Growth and development disorders mental retardation, cerebral palsy, brain development disorders, mental retardation, familial cerebral nucleus dysplasia syndrome, strabismus, skin, fat and muscular dysplasia such as congenital skin laxity, premature aging Disease, congenital keratosis, various metabolic defects such as various amino acid metabolic defects, stunting, dwarfism, sexual retardation
- Tumors of various tissues gastric cancer, liver cancer, lung cancer, esophageal cancer, breast cancer, leukemia, lymphoma, thyroid tumor, uterine fibroids, neuroblastoma, astrocytoma, ependymoma, glioblastoma, Colon cancer, melanoma, adrenal cancer, bladder cancer, bone cancer, osteosarcoma, myeloma, bone marrow cancer, brain cancer, uterine cancer, endometrial cancer, cholangiocarcinoma, thymic tumor, nasal cavity and sinus cancer, nasopharyngeal cancer
- the abnormal expression of the human ribosomal protein S3-12 of the present invention will also produce certain hereditary, hematological and immune system diseases and the like.
- the invention also provides methods of screening compounds to identify agents that increase (agonist) or suppress (antagonist) human ribosomal protein S 3- 12.
- Agonists enhance biological functions such as human ribosomal protein S3-12 to stimulate cell proliferation, while antagonists prevent and treat disorders related to excessive cell proliferation, such as various cancers.
- mammalian cells or membrane preparations expressing human ribosomal protein S 3- 12 can be cultured together with labeled human ribosomal protein S 3- 12 in the presence of a drug. The ability of the drug to increase or block this interaction is then measured.
- Antagonists of human ribosomal protein S 3-12 include antibodies, compounds, receptor deletions, and the like that have been screened. Antagonists of human ribosomal protein S3-12 can bind to human ribosomal protein S3-12 and eliminate its function, or inhibit the production of the polypeptide, or bind to the active site of the polypeptide so that the polypeptide cannot function biologically Learn function.
- human ribosomal protein S 3- 12 can be added to a bioanalytical assay to determine the compound by measuring the effect of the compound on the interaction between human ribosomal protein S 3-12 and its receptor Whether it is an antagonist.
- Receptor deletions and analogs that function as antagonists can be screened in the same manner as described above for screening compounds.
- Polypeptide molecules capable of binding to human ribosomal protein S 3-12 can be obtained by screening a random peptide library composed of various possible combinations of amino acids bound to a solid phase. When screening, human ribosomal protein S 3-12 molecules should generally be labeled.
- the present invention provides a method for producing antibodies using polypeptides, and fragments, derivatives, analogs or cells thereof as antigens. These antibodies can be polyclonal or monoclonal antibodies.
- the invention also provides antibodies against the human ribosomal protein S3- 12 epitope. These antibodies include (but are not limited to): polyclonal antibodies, monoclonal antibodies, chimeric antibodies, single-chain antibodies, Fab fragments, and fragments from Fab expression libraries.
- Polyclonal antibodies can be produced by injecting human ribosomal protein S 3- 12 directly into immunized animals (such as rabbits, mice, rats, etc.).
- immunized animals such as rabbits, mice, rats, etc.
- adjuvants can be used to enhance the immune response, including but not limited to Freund's Adjuvant, etc.
- Techniques for preparing monoclonal antibodies to human ribosomal protein S 3-12 include, but are not limited to, hybridoma technology (Kohler and Miles in. Nature, 1975, 256: 495-497), triple tumor technology, human beta- Cell hybridoma technology, EBV-hybridoma technology, etc.
- Chimeric antibodies that bind human constant regions and non-human-derived variable regions can be produced using existing techniques (Morrison et al, PMS, 1985, 81: 6851).
- the existing technology for producing single-chain antibodies (US Pat. No. 4946778) can also be used to produce single-chain antibodies against human ribosomal protein S3-12.
- Antibodies against human ribosomal protein S 3-12 can be used in immunohistochemistry to detect human ribosomal protein S 3- 12 in biopsy specimens.
- Monoclonal antibodies that bind to human ribosomal protein S 3- 12 can also be labeled with radioisotopes and injected into the body to track their location and distribution. This radiolabeled antibody can be used as a non-invasive diagnostic method to locate tumor cells and determine whether there is metastasis.
- Antibodies can also be used to design immunotoxins against a specific bead site in the body.
- human ribosomal protein S3-12 high affinity monoclonal antibodies can covalently bind to bacterial or plant toxins (such as diphtheria toxin, ricin, ormosine, etc.).
- a common method is to attack the amino group of an antibody with a thiol cross-linking agent such as SPDP and bind the toxin to the antibody through disulfide exchange.
- This hybrid antibody can be used to kill human ribosomal protein S 3- 12 positive Cell.
- the antibodies in the present invention can be used to treat or prevent diseases related to human ribosomal protein S 3-12. Administration of an appropriate dose of the antibody can stimulate or block the production or activity of human ribosomal protein S3--12.
- the invention also relates to a diagnostic test method for quantitatively and locally detecting the level of human ribosomal protein S3-12.
- tests are well known in the art and include FISH assays and radioimmunoassays.
- the level of human ribosomal protein S 3-12 detected in the test can be used to explain the importance of human ribosomal protein S 3- 12 in various diseases and to diagnose diseases where human riboprotein S 3-12 plays a role .
- polypeptide of the present invention can also be used for peptide mapping analysis.
- the polypeptide can be 'specifically cleaved' by physical, chemical or enzyme, and subjected to one-dimensional or two-dimensional or three-dimensional gel electrophoresis analysis, and more preferably mass spectrometry analysis. .
- the polynucleotide encoding human ribosomal protein S3-12 can also be used for a variety of therapeutic purposes. Gene therapy technology can be used to treat abnormal cell proliferation, development, or metabolism caused by the non-expression or abnormal / inactive expression of human ribosomal protein S 3-12. Recombinant gene therapy vectors (such as viral vectors) can be designed to express mutated human ribosomal protein S 3-12 to inhibit endogenous human ribosomal protein S 3-12 activity.
- a variant human ribosomal protein S3-12 may be a shortened human ribosomal protein S3-12 lacking a signaling domain. Although it can bind to downstream substrates, it lacks signaling activity.
- the acoustic therapy gene therapy vector can be used to treat diseases caused by abnormal expression or activity of human ribosomal protein S 3-12.
- Virus-derived expression vectors such as retrovirus, adenovirus, adenovirus-associated virus, herpes simplex virus, parvovirus and the like can be used to transfer a polynucleotide encoding human ribosomal protein S3- 12 into a cell.
- Construct Methods for carrying recombinant viral vectors carrying polynucleotides encoding human ribosomal protein S 3-12 can be found in the literature (Sambrook, et al.).
- the polynucleotide encoding human ribosomal protein S 3- 12 can be packaged into liposomes and transferred into cells.
- Methods for introducing a polynucleotide into a tissue or cell include: directly injecting the polynucleotide into a tissue in vivo; or introducing the polynucleotide into a cell in vitro through a vector (such as a virus, phage, or plasmid), and then transplanting the cell Into the body and so on.
- a vector such as a virus, phage, or plasmid
- Oligonucleotides including antisense RNA and DM
- ribozymes that inhibit human ribosomal protein S 3- 12 raRNA are also within the scope of the present invention.
- a ribozyme is an enzyme-like RNA molecule that can specifically decompose a specific RM. Its mechanism of action is that the ribozyme molecule specifically hybridizes with a complementary target RM to perform endonucleation.
- Antisense RNA, DM, and ribozymes can be obtained using any existing RNA or DM synthesis techniques, such as solid-phase phosphoramidite chemical synthesis to synthesize oligonucleotides.
- Antisense A molecules can be obtained by in vitro or in vivo transcription of a DNA sequence encoding the RM. This DNA sequence has been integrated downstream of the RM polymerase promoter of the vector. In order to increase the stability of the nucleic acid molecule, it can be modified in a variety of ways, such as increasing the sequence length on both sides, and the linkage between ribonucleosides using phosphorothioate or peptide bonds instead of phosphodiester bonds.
- the polynucleotide encoding human ribosomal protein S 3-12 can be used for diagnosis of diseases related to human ribosomal protein S 3--12.
- Polynucleotides encoding human ribosomal protein S 3- 12 can be used to detect the expression of human ribosomal protein S3- 12 or the abnormal expression of human ribosomal protein S 3-12 under disease conditions.
- the DNA sequence encoding human ribosomal protein S 3-12 can be used to hybridize biopsy specimens to determine the expression of human ribosomal protein S 3-12.
- Hybridization techniques include Southern blotting, Nor thern blotting, and in situ hybridization. These techniques and methods are all mature and open technologies, and related kits are commercially available.
- a part or all of the polynucleotides of the present invention can be used as probes to be fixed on a microarray or a DNA chip (also referred to as a "gene chip") for analyzing differential expression analysis of genes and genetic diagnosis in tissues.
- Human ribosomal protein S 3-12 specific primers can also be used to detect the transcription products of human ribosomal protein S 3-12 by performing RM-polymerase chain reaction (RT-PCR) in vitro amplification.
- Detection of mutations in the human ribosomal protein S3-12 gene can also be used to diagnose human ribosomal protein S3-12 related diseases.
- Human ribosomal protein S 3-12 mutations include point mutations, translocations, deletions, recombinations, and any other abnormalities compared to the normal wild-type human ribosomal protein S3-12 DNA sequence. Mutations can be detected using existing techniques such as Southern blotting, DNA sequence analysis, PCR and in situ hybridization. In addition, mutations may affect protein expression. Therefore, the Nor thern blotting and Western blotting can be used to indirectly determine whether a gene is mutated.
- sequences of the invention are also valuable for chromosome identification. This sequence will be specific to someone The chromosome is in a specific location and can hybridize to it. Currently, specific sites for each gene on the chromosome need to be identified. Currently, only a few chromosome markers based on actual sequence data (repeating polymorphisms) are available for labeling chromosome positions. According to the present invention, in order to associate these sequences with disease-related genes, an important first step is to locate these DNA sequences on a chromosome.
- PCR primers (preferably 15-35bp) are prepared according to cDM, and the sequences can be located on chromosomes. These primers were then used for PCR screening of somatic hybrid cells containing individual human chromosomes. Only those heterozygous cells containing the human gene corresponding to the primer will produce amplified fragments.
- PCR localization of somatic hybrid cells is a quick way to localize DM to specific chromosomes.
- oligonucleotide primers of the present invention in a similar manner, a set of fragments from a specific chromosome or a large number of genomic clones can be used to achieve sublocalization.
- Other similar strategies that can be used for chromosomal localization include in situ hybridization, chromosome pre-screening with labeled flow sorting, and pre-selection of hybridization to construct chromosome-specific cDNA libraries.
- Fluorescent in situ hybridization of cDNA clones with metaphase chromosomes allows precise chromosomal localization in one step.
- FISH Fluorescent in situ hybridization
- the difference in cDM or genomic sequence between the affected and unaffected individuals needs to be determined. If a mutation is observed in some or all of the affected individuals and the mutation is not observed in any normal individual, the mutation may be the cause of the disease. Comparing affected and unaffected individuals usually involves first looking for structural changes in the chromosomes, such as deletions or translocations that are visible at the chromosomal level or detectable with cDM sequence-based PCR. According to the resolution capabilities of current physical mapping and gene mapping technology, the cDNA accurately mapped to the chromosomal region associated with the disease can be one of 50 to 500 potentially pathogenic genes (assuming 1 megabase mapping resolution) Capacity and each 20kb corresponds to a gene).
- the polypeptides, polynucleotides and mimetics, agonists, antagonists and inhibitors of the present invention can be used in combination with a suitable pharmaceutical carrier.
- suitable pharmaceutical carrier can be water, glucose, ethanol, salts, buffers, glycerol, and combinations thereof.
- the composition comprises a safe and effective amount of the polypeptide or antagonist, and carriers and excipients which do not affect the effect of the drug. These compositions can be used as drugs for the treatment of diseases.
- the present invention also provides a kit or kit containing one or more containers, the containers containing one or more An ingredient of the pharmaceutical composition of the present invention.
- the containers containing one or more An ingredient of the pharmaceutical composition of the present invention.
- there may be instructional instructions given by government agencies that manufacture, use, or sell pharmaceuticals or biological products, which reminders authorize them to be administered to humans by government agencies that manufacture, use, or sell them.
- the polypeptides of the invention can be used in combination with other therapeutic compounds.
- the pharmaceutical composition can be administered in a convenient manner, such as by a topical, intravenous, intraperitoneal, intramuscular, subcutaneous, intranasal or intradermal route of administration.
- Human ribosomal protein S3- 12 is administered in an amount effective to treat and / or prevent a specific indication.
- the amount and range of human ribosomal protein S3-12 administered to a patient will depend on many factors, such as the mode of administration, the health conditions of the person to be treated, and the judgment of the diagnostician. Examples
- Total human fetal brain RNA was extracted by one-step method with guanidine isothiocyanate / phenol / chloroform.
- Poly (A) mRNA was isolated from total A using Quik mRNA I solat ion Kit (product of Qiegene). 2ug poly (A) mRNA is reverse transcribed to form cDNA. Use Smart cDM Cloning Kit (purchased from Clontech). The 0 fragment was inserted into the multicloning site of pBSK (+) vector (Clontech), and transformed into DH5 ⁇ . The bacteria formed a cDNA library.
- Dye terminate cycle react ion sequencing kit Perkin-Elmer
- ABI 377 automatic sequencer Perkin-Elmer
- cDNA sequence of one of the clones 09 22 h07 was new DNA.
- a series of primers were synthesized to determine the inserted cDNA fragments of the clone in both directions.
- CDM was synthesized using fetal brain cell total RNA as a template and ol igo-dT as a primer for reverse transcription reaction. After purification with Qiagene's kit, PCR was performed with the following primers: Primerl: 5, one GCTGCTTTACTTACCATTAAATCT- 3 '(SEQ ID NO: 3)
- Pr imer2 5'- AAAAGGATTTTATTCTTTATAAAA-3 '(SEQ ID NO: 4)
- Primerl is a forward sequence located at the 5th end of SEQ ID NO: 1, starting at lbp;
- Primer2 is the 3, terminal reverse sequence of SEQ ID NO: 1.
- Amplification reaction conditions A reaction volume of 50 ⁇ 1 contains 50 mmo l / L KC1, 10 mol / L Tris-HCl, pH 8. 5, 1. 5 mmol / L MgCl 2 , 20 ( ⁇ mol / L dNTP, lOpmol primer, 1U Taq DNA polymerase (product of Clontech). The reaction was performed on a PE9600 DNA thermal cycler (Perkin-Elmer) under the following conditions for 25 cycles: 94 ° C 30sec; 55 ° C 30sec; 72 ° C 2min. Set ⁇ -act in as positive control and template blank as negative control at the same time during RT-PCR.
- the amplified product was purified with QIAGEN's kit and connected to pCR vector with TA cloning kit (Invitrogen). DNA sequence analysis results show that the DM sequence of the PCR product is exactly the same as the 1- 2378bp shown in SEQ ID NO: 1.
- Example 3 Northern blot analysis of human ribosomal protein S3-12 gene expression
- a 32P-labeled probe (about 2 x 10 6 cpm / ml) was hybridized with a nitrocellulose membrane to which RNA was transferred at 42 ° C overnight in a solution containing 50% formamide-25mM H 2 P0 4 (pH7. 4)-5 ⁇ 33 (-5 Salmon 0. After hybridization, the filter was washed in 1 x SSC-0.1% SDS at 55 ° C for 30rain. Then, Phosphor Imager was used for analysis and quantification.
- Example 4 In vitro expression, isolation and purification of recombinant human ribosomal protein S3-12
- Primer3 5 '-CCCCATATGATGTC AGCTAATAGTATATATTC A- 3' (Seq ID No: 5)
- Primer4 5 '-CATGGATCCTCACAGTATATGCCACGCAAATAT-3' (Seq ID No: 6)
- the 5 'ends of these two primers contain Ndel and BamHI digestion sites, respectively 5 'end of the target gene
- the Ndel and BaniHI restriction sites correspond to the selective endonuclease sites on the expression vector plasmid pET-28b (+) (Novagen, Cat. No. 69865. 3).
- the PCR reaction was performed using the pBS-0922h07 plasmid containing the full-length target gene as a template.
- the PCR reaction conditions were as follows: 10 pg of pBS-0922h07 plasmid in a total volume of 50 ⁇ 1, Primer-3 and Primer-4 primers were 1 Opmol, Advantage polymerase Mix (Clontech) 1 ⁇ 1, respectively. Cycle parameters: 94. C 20s, 60. C 30s, 68 ° C 2 min, a total of 25 cycles. Ndel and BamHI were used to double digest the amplified product and plasmid pET-28 (+), respectively, and large fragments were recovered and ligated with T4 ligase.
- the ligation product was transformed into the colibacillus DH5 c by the calcium chloride method, and cultured overnight in LB plates containing kanamycin (final concentration 30 ⁇ ⁇ / ⁇ 1).
- the positive clones were selected by colony PCR method and sequenced.
- a positive clone (PET-0922h07) with the correct sequence was selected, and the recombinant plasmid was transformed into E. coli BL21 (DE3) plySs (product of Novagen) using the calcium chloride method.
- peptides specific to human ribosomal protein S3-12 were synthesized using a peptide synthesizer (product of PE company): NH2-Met-Ser-Ala-Asn-Ser-I le-Tyr-Ser-Thr-Ser-Lys-Tyr -Leu-Lys-Val-C00H (SEQ ID NO: 7).
- the polypeptide is coupled with hemocyanin and bovine serum albumin to form a complex, respectively.
- hemocyanin and bovine serum albumin for methods, see: Avrameas, et al. Immunochemi s try, 1969; 6: 43.
- oligonucleotide fragments from the polynucleotides of the present invention for use as hybridization probes. Uses: if the probe can be used to hybridize to the genomic or cDNA library of normal tissue or pathological tissue from different sources to identify whether it contains the polynucleotide sequence of the present invention and detect a homologous polynucleotide sequence, it can further be used The probe detects whether the polynucleotide sequence of the present invention or a homologous polynucleotide sequence thereof is abnormally expressed in cells of normal tissue or pathological tissue.
- the purpose of this embodiment is to select a suitable oligonucleotide fragment from the polynucleotide SEQ ID NO: 1 of the present invention as a hybridization probe, and to identify whether some tissues contain the polynucleoside of the present invention by using a filter hybridization method.
- Filter hybridization methods include dot blotting, Southern imprinting, Northern blotting, and copying methods. They all use the same steps to immobilize the polynucleotide sample to be tested on the filter.
- the sample-immobilized filter is first pre-hybridized with a probe-free hybridization buffer to saturate the non-specific binding site of the sample on the filter with the carrier and the synthesized polymer.
- the pre-hybridization solution is then replaced with a hybridization buffer containing labeled probes and incubated to hybridize the probes to the target nucleic acid.
- the unhybridized probes are removed by a series of membrane washing steps.
- This embodiment uses higher-intensity washing conditions (such as lower salt concentration and higher temperature), so that the hybridization background is reduced and only strong specific signals are retained.
- the probes used in this embodiment include two types: the first type of probes are oligonucleotide fragments that are completely the same as or complementary to the polynucleotide SEQ ID NO: 1 of the present invention; the second type of probes are partially related to the present invention
- the polynucleotide SEQ ID NO: 1 is the same or complementary oligonucleotide fragment.
- the dot blot method is used to fix the sample on the filter membrane. Under the high-intensity washing conditions, the first type of probe and the sample have the strongest hybridization specificity and are retained.
- oligonucleotide fragments from the polynucleotide SEQ ID NO: 1 of the present invention for use as hybridization probes should follow the following principles and several aspects to be considered:
- the preferred range of probe size is 18-50 nucleotides
- Those that meet the above conditions can be used as primary selection probes, and then further computer sequence analysis, including the primary selection probe and its source sequence region (ie, SEQ ID NO: 1) and other known genomic sequences and their complements For homology comparison of the regions, if the homology with the non-target molecular region is greater than 85% or there are more than 15 consecutive bases, the primary probe should not be used generally;
- Probe 1 (probel), which belongs to the first type of probe, is completely homologous to the gene fragment of SEQ ID NO: 1 Or complementary (41Nt):
- Probe 2 which belongs to the second type of probe, is equivalent to the replacement mutation sequence (41Nt) of the gene fragment or its complementary fragment of SEQ ID NO: 1:
- PBS phosphate buffered saline
- step 8-13 are only used when contamination must be removed, otherwise step 14 can be performed directly.
- NC membranes nitrocellulose membranes
- Two NC membranes are required for each probe, so that they can be used in the following experimental steps.
- the film was washed with high-strength conditions and strength conditions, respectively.
- the sample membrane was placed in a plastic bag, and 3-10 mg of prehybridization solution (lOxDenhards; 6xSSC, 0.1 mg / ml CT DM (calf thymus DNA)) was added. After sealing the mouth of the bag, shake at 68 ° C for 2 hours.
- prehybridization solution lOxDenhards; 6xSSC, 0.1 mg / ml CT DM (calf thymus DNA)
- Gene chip or gene microarray is a new technology currently being developed by many national laboratories and large pharmaceutical companies. It refers to the orderly and high-density arrangement of a large number of target gene fragments on glass, Silicon and other carriers, and then use fluorescence detection and computer software to compare and analyze the data Analysis in order to achieve the purpose of fast, efficient and high-throughput analysis of biological information.
- the polynucleotide of the present invention can be used as target DNA for gene chip technology for high-throughput research of new gene functions; search for and screen new tissue-specific genes, especially new genes related to diseases such as tumors; diagnosis of diseases such as hereditary diseases . The specific method steps have been reported in the literature.
- a total of 4,000 polynucleotide sequences of various full-length cDNAs are used as the target DM, including the polynucleotide of the present invention. They were respectively amplified by PCR, and the concentration of the amplified product was adjusted to about 500 ng / ul after purification, and spotted on a glass medium with a Cartesian 7500 spotter (purchased from Cartesian Company, USA) The distance between them is 280 ⁇ m. The spotted slides were hydrated and dried, cross-linked in a UV cross-linker, and dried after elution to fix the DNA on the glass slides to prepare chips. The specific method steps have been reported in the literature. The sample post-processing steps in this embodiment are:
- Total mRNA was extracted from human mixed tissues and specific tissues (or stimulated cell lines) by one-step method, and the mRNA was purified with Ol igotex mRNA Midi Kit (purchased from QiaGen).
- Cy3dUTP (5- Amino-propargyl-2'-deoxyuridine 5'-triphate coupled to Cy3 f luorescent dye, purchased from Amersham Phamacia Biotech) was used to label mRNA of human mixed tissues, and the fluorescent reagent Cy5dUTP (5-Amino-propargyl- 2 ' -deoxyuridine 5'-triphate coupled to Cy5 fluorescent dye, purchased from Amershara Phamacia Biotech, labeled the body's specific tissue (or stimulated cell line) mRM, and purified the probe to prepare a probe.
- Cy3dUTP (5- Amino-propargyl-2'-deoxyuridine 5'-triphate coupled to Cy3 f luorescent dye, purchased from
- the probes from the above two tissues were hybridized with the chip in UniHyb TM Hybridization Solution (purchased from TeleChem) hybridization solution for 16 hours, and washed with a washing solution (lx SSC, 0.2% SDS) at room temperature. Scanning was then performed with a ScanArray 3000 scanner (purchased from General Scanning, USA), and the scanned images were analyzed and processed with Imagene software (Biodiscovery, USA) to calculate the Cy3 / Cy5 ratio of each point.
- UniHyb TM Hybridization Solution purchasedd from TeleChem
- lx SSC 0.2% SDS
- the above specific tissues are thymus, testis, muscle, spleen, lung, skin, thyroid, liver, PMA + Ecv304 cell line, PMA-Ecv304 cell line, non-starved L02 cell line, L02 cell line stimulated by arsenic for 1 hour, L02 cell line stimulated by arsenic for 6 hours prostate, heart, lung cancer, fetal bladder, fetal small intestine, fetal large intestine, fetal thymus, fetal muscle, fetal liver, fetal kidney, fetal spleen, fetal brain, Fetal lung and fetal heart.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Biochemistry (AREA)
- Biophysics (AREA)
- Zoology (AREA)
- Genetics & Genomics (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Toxicology (AREA)
- Peptides Or Proteins (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU50267/01A AU5026701A (en) | 2000-03-24 | 2001-03-23 | A novel polypeptide - homo ribosome protein s3-12 and polynucleotide encoding said polypeptide |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00115117.7 | 2000-03-24 | ||
| CN 00115117 CN1315358A (zh) | 2000-03-24 | 2000-03-24 | 一种新的多肽——人核糖体蛋白s3-12和编码这种多肽的多核苷酸 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001074879A1 true WO2001074879A1 (fr) | 2001-10-11 |
Family
ID=4584586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2001/000409 Ceased WO2001074879A1 (fr) | 2000-03-24 | 2001-03-23 | Nouveau polypeptide, proteine ribosomale humaine s3-12, et polynucleotide codant pour ce polypeptide |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1315358A (zh) |
| AU (1) | AU5026701A (zh) |
| WO (1) | WO2001074879A1 (zh) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100447091B1 (ko) * | 2001-10-15 | 2004-09-08 | (주)바이오인스티튜트 | 세포사멸을 유도하는 리보솜 단백질 s3 유전자 및 이의용도 |
| KR100468238B1 (ko) * | 2001-11-06 | 2005-01-26 | (주)바이오인스티튜트 | 리보솜 단백질 s3에 대한 다클로날항체 및 이를 이용한 암진단 킷트 |
| WO2008131426A1 (en) * | 2007-04-23 | 2008-10-30 | Government Of The United States Of America, Represented By The Secretary, Department Of Health And Human Services | RIBOSOMAL PROTEIN S3: A FUNCTIONAL COMPONENT OF NF-KAPPA B p65 BINDING COMPLEXES |
| KR20160050414A (ko) * | 2014-10-29 | 2016-05-11 | 고려대학교 산학협력단 | 리보솜 단백질 S3 (rpS3)을 이용한 암의 진단 방법 |
-
2000
- 2000-03-24 CN CN 00115117 patent/CN1315358A/zh active Pending
-
2001
- 2001-03-23 AU AU50267/01A patent/AU5026701A/en not_active Abandoned
- 2001-03-23 WO PCT/CN2001/000409 patent/WO2001074879A1/zh not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| "The function of ribosome protein outside ribosome", BIOTIC CHEMISTRY, vol. 17, no. 1, 1997, pages 23 - 25 * |
| WANG NING ET AL.: "Study on conservatism of ribosome protein gene marshalling sequence in 16 integrate genome", SCIENCE IN CHINA (SERIES C), vol. 30, no. 1, February 2000 (2000-02-01), pages 99 - 107 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100447091B1 (ko) * | 2001-10-15 | 2004-09-08 | (주)바이오인스티튜트 | 세포사멸을 유도하는 리보솜 단백질 s3 유전자 및 이의용도 |
| KR100468238B1 (ko) * | 2001-11-06 | 2005-01-26 | (주)바이오인스티튜트 | 리보솜 단백질 s3에 대한 다클로날항체 및 이를 이용한 암진단 킷트 |
| WO2008131426A1 (en) * | 2007-04-23 | 2008-10-30 | Government Of The United States Of America, Represented By The Secretary, Department Of Health And Human Services | RIBOSOMAL PROTEIN S3: A FUNCTIONAL COMPONENT OF NF-KAPPA B p65 BINDING COMPLEXES |
| KR20160050414A (ko) * | 2014-10-29 | 2016-05-11 | 고려대학교 산학협력단 | 리보솜 단백질 S3 (rpS3)을 이용한 암의 진단 방법 |
| KR101654244B1 (ko) | 2014-10-29 | 2016-09-05 | 고려대학교 산학협력단 | 리보솜 단백질 S3 (rpS3)을 이용한 암의 진단 방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1315358A (zh) | 2001-10-03 |
| AU5026701A (en) | 2001-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2001074879A1 (fr) | Nouveau polypeptide, proteine ribosomale humaine s3-12, et polynucleotide codant pour ce polypeptide | |
| WO2001088084A2 (en) | A novel polypeptide, a superoxide dismutase 11 and the polynucleotide encoding the polypeptide | |
| WO2001066730A1 (fr) | Nouveau polypeptide, proteine humaine rs3 12, et polynucleotide codant pour ce polypeptide | |
| WO2001083538A1 (fr) | Nouveau polypeptide, proteine humaine 36 du gene k-ras, et polynucleotide codant pour ce polypeptide | |
| WO2001094371A1 (fr) | Nouveau polypeptide, proteine ribosomale humaine s4-10, et polynucleotide codant ce polypeptide | |
| WO2001085958A1 (en) | A novel polypeptide, a human atp dependent serine proteinase 18 and the polynucleotide encoding the polypeptide | |
| WO2001094401A1 (fr) | Nouveau polypeptide, proteine npat humaine 15, et polynucleotide codant pour ce polypeptide | |
| WO2001092517A1 (fr) | Nouveau polypeptide, proteine humaine 29.15 du gene transducteur-2-beta, et polynucleotide codant ce polypeptide | |
| WO2001071003A1 (en) | A novel polypeptide, a human serine protease 8 and the polynucleotide encoding the polypeptide | |
| WO2001072801A1 (fr) | Nouveau polypeptide, proteine ribosomale humaine s11 12, et polynucleotide codant pour ce polypeptide | |
| WO2001090177A1 (fr) | Nouveau polypeptide, activateur humain de la mort naturelle des cellules b13.64, et polynucleotide codant ce polypeptide | |
| WO2001085752A1 (fr) | Polynucleotide codant un peptide de myosine | |
| WO2001075101A1 (fr) | Nouveau polypeptide, proteine humaine de regulation de la transcription 8, et polynucleotide codant pour ce polypeptide | |
| WO2001087968A1 (en) | A novel polypeptide -human ribosomal protein s4-36 and a polynucleotide encoding the same | |
| WO2001083544A1 (fr) | Nouveau polypeptide, proteine pax humaine 18, et polynucleotide codant pour ce polypeptide | |
| WO2001087966A1 (fr) | Nouveau polypeptide, proteine pax humaine 22, et polynucleotide codant pour ce polypeptide | |
| WO2001083741A1 (fr) | Nouveau polypeptide, proteine myb humaine 10, et polynucleotide codant pour ce polypeptide | |
| WO2001090171A1 (fr) | Nouveau polypeptide, proteine humaine ribosomale sii 12, et polynucleotide codant ce polypeptide | |
| WO2002012308A1 (en) | A new polypeptide-human rs3 protein 18 and the polynucleotide encoding it | |
| WO2001083683A2 (en) | A novel polypeptide, a human pax protein 11.3 and the polynucleotide encoding the polypeptide | |
| WO2001094407A1 (en) | A novel polypeptide - human ubiquitin-conjugating enzyme 10.01 and a polynucleotide encoding the same | |
| WO2001087962A1 (fr) | Nouveau polypeptide, proteine pax humaine 11, et polynucleotide codant ce polypeptide | |
| WO2001068872A1 (en) | Novel polypeptide---a human vacuolar h+ acyladenosine triphosphatase c subunit 22 and polynucleotide encoding it | |
| WO2002000698A1 (fr) | Nouveau polypeptide, proteine humaine 12 de transport de l'acide phosphorique, et polynucleotide codant ce polypeptide | |
| WO2001087951A1 (fr) | Nouveau polypeptide, helicase humaine 11, et polynucleotide codant pour ce polypeptide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CO CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| 122 | Ep: pct application non-entry in european phase | ||
| NENP | Non-entry into the national phase |
Ref country code: JP |