发明名称 |
Método para remover um dipeptídio amino-terminal de um polipeptídio precursor para produzir um polipeptídio processado e método para remover dipeptídios amino-terminais de um polipeptídio precursor para produzir um polipeptídio processado |
摘要 |
The present invention concerns a novel process for using a recently discovered dipeptidylaminopeptidase isolated from the cellular slime mold, Dictyostelium discoideum (dDAP). The claimed process involves immobilizing dDAP onto a support surface so that even numbered, N-terminal dipeptides can be efficiently removed from precursor proteins or polypeptides to yield desired processed proteins or polypeptides. The invention provides a means for reusing dDAP in multiple conversion reaction runs, as the enzyme does not become a part of the substrate/product solution. The claimed process is particularly useful for converting a precursor human proinsulin analog (Met-Arg-Human Proinsulin having Lys at position 28 and Pro at position 29 of the corresponding insulin B-chain; MR-KPB-hPI) to a processed insulin analog (Human Proinsulin having Lys at position 28 and Pro at position 29 of the corresponding insulin B-chain, KPB-hPI). |
申请公布号 |
BR9405145(A) |
申请公布日期 |
1995.10.17 |
申请号 |
BR19949405145 |
申请日期 |
1994.12.19 |
申请人 |
ELI LILLY AND COMPANY |
发明人 |
PAUL ROBERT ATKINSON;LISA KAY FOSTER |
分类号 |
C12N15/09;C07K14/62;C12N9/50;C12N9/58;C12P21/06 |
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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