发明名称 |
RECOMBINANT PLASMID ENCODING FUSED PROTEIN AS PRECURSOR OF HUMAN INSULIN (VARIANTS), STRAIN OF BACTERIUM ESCHERICHIA COLI - PRODUCER OF FUSED PROTEIN AS PRECURSOR OF HUMAN INSULIN (VARIANTS), METHOD OF HUMAN INSULIN PREPARING |
摘要 |
FIELD: biotechnology, molecular biology, genetic engineering. SUBSTANCE: invention relates to development of new recombinant plasmids expressing fused protein where amino acid sequences of lider peptide that is IgG-binding domain of protein A and human proinsulin are bound by two arginine residues (plasmid pRRproins) or lysine and arginine residues (plasmid pRRproins). Human insulin is prepared by a method that involves culturing the strain E. coli JM-109-pRRproins carrying plasmid pRRproins or the strain E. coli JM-109-pRRproins carrying plasmid pRRproins, isolation of inclusion bodies, solubilization, sulfitolysis and renaturation of fused protein by ion-exchange chromatography method, its cleavage with trypsin-like and carboxypeptidase B-like enzymes and insulin isolation. EFFECT: simplified technological process of human insulin preparing, increased yield of insulin. 6 cl, 4 dwg, 7 ex
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申请公布号 |
RU2143492(C1) |
申请公布日期 |
1999.12.27 |
申请号 |
RU19980113462 |
申请日期 |
1998.07.23 |
申请人 |
NAVASHIN PETR SERGEEVICH;MAL'TSEV KONSTANTIN VALENTINOVICH;JAROTSKIJ SERGEJ VIKTOROVICH |
发明人 |
NAVASHIN S.M.;MAL'TSEV K.V.;JAROTSKIJ S.V. |
分类号 |
C12N15/17;C07K14/62;C12N1/21;C12P21/00;C12R1/19;(IPC1-7):C12N15/17 |
主分类号 |
C12N15/17 |
代理机构 |
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地址 |
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