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公开(公告)号:EP1127155A1
公开(公告)日:2001-08-29
申请号:EP99956920.5
申请日:1999-11-05
申请人: BIONEBRASKA, INC.
IPC分类号: C12P21/06
CPC分类号: C07K14/605 , C12P21/06
摘要: The invention provides a method of producing a polypeptide having a C-terminal α-carboxamide group. It particularly concerns an enzymatic modification of selected substrate polypeptides which result in cleavage of the substrate polypeptide to form a product peptide with a C-terminal arginine residue having an α-carboxamide group (C-terminal 'Arg-NH2'). The method includes contacting an aqueous-based solution including (i) ammonia reagent and (ii) the substrate polypeptide with (iii) clostripain.