发明名称 |
PROCESS FOR THE PREPARATION OF POLYPEPTIDES UTILIZING A CHARGED AMINO ACID POLYMER AND EXOPEPTIDASE |
摘要 |
A method for the production of polypeptides utilizing a polymer of charged amino acids and an exopeptidase. A DNA sequence coding for the charged amino acid polymer is inserted adjacent to one end of the polypeptide gene. The polypeptide-charged amino acid polymer fusion product is removed from most contaminents by selecting for the charged amino acid polymer during a first isolation step. Next the charged amino acid polymer is hydrolyzed using an exopeptidase which leaved the polypeptide active. A second isolation step removes the polypeptide from any remaining contaminents. An example using polyarginine and carboxypeptidase B to produce urogastrone is included. |
申请公布号 |
DE3380260(D1) |
申请公布日期 |
1989.08.31 |
申请号 |
DE19833380260 |
申请日期 |
1983.03.17 |
申请人 |
G.D. SEARLE & CO. |
发明人 |
BREWER, STEPHEN JAMES;SASSENFELD, HELMUT MAX |
分类号 |
C12N15/09;C07K14/485;C12P21/00;C12P21/02;C12Q1/37;(IPC1-7):C12N15/00 |
主分类号 |
C12N15/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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