申请人:Seikagaku Corporation
公开号:EP1323730A1
公开(公告)日:2003-07-02
The present invention relates to a polypeptide represented by the formula:
A1-Arg-A2-Cys-Tyr-A3-A4-X-A5-A6-Cit-Cys-A7 (I)
(wherein A1 represents a hydrogen atom or an arginine, lysine, ornithine, citrulline, alanine residue, etc.; A2 represents an aromatic amino acid residue; A3, A4 and A6 represent an arginine, lysine, ornithine, citrulline or alanine residue, A5 represents a tyrosine, phenylalanine, alanine, naphthylalanine or citrulline residue; A7 represents a lysine or arginine residue in which a carboxyl group may be amidated; X represents a D-ornithyl-proline, prolyl-D-ornithine, D-lysyl-proline residue, etc.; provided that either of A1, A3, A4, A5, A6 and A7 is an alanine residue, etc., or X is citrulline, etc.) or a salt thereof.
本发明涉及一种由式表示的多肽:
A1-Arg-A2-Cys-Tyr-A3-A4-X-A5-A6-Cit-Cys-A7 (I)
(其中 A1 代表一个氢原子或一个精氨酸、赖氨酸、鸟氨酸、瓜氨酸、丙氨酸残基等;A2 代表一个芳香族氨基酸。A2 代表芳香族氨基酸残基;A3、A4 和 A6 代表精氨酸、赖氨酸、鸟氨酸、瓜氨酸或丙氨酸残基,A5 代表酪氨酸、苯丙氨酸、丙氨酸、萘丙氨酸或瓜氨酸残基;A7 代表赖氨酸或精氨酸残基,其中的羧基可能被酰胺化;X 代表 D-鸟氨酰-脯氨酸、脯氨酰-D-鸟氨酸、D-赖氨酰-脯氨酸残基等。条件是 A1、A3、A4、A5、A6 和 A7 中的任一个是丙氨酸残基等、或 X 是瓜氨酸等)或其盐。