Structure-Inhibitory Activity Relationship of Plasmin and Plasma Kallikrein Inhibitors.
作者:Yuko TSUDA、Mayako TADA、Keiko WANAKA、Utako OKAMOTO、Akiko HIJIKATA-OKUNOMIYA、Shosuke OKAMOTO、Yoshio OKADA
DOI:10.1248/cpb.49.1457
日期:——
Based on the structure of Tra-Tyr(O-Pic)-octylamide, a portion of the octylamine was replaced with moieties bearing hydrophobic, basic or acidic groups. Replacement of the C-terminal residue with a moiety bearing a hydrophobic group gave the proper affinity of the inhibitor to both plasmin (PL) and plasma kallikrein (PK). While addition of a basic residue did not improve the affinity of the inhibitor, a carboxylic acid attached to the phenyl ring increased the PK selectivity of the inhibitor.
基于Tra-Tyr(O-Pic)-octylamide的结构,八氨基的一部分被带有疏水性、碱性或酸性基团的部分所替代。用带有疏水性基团的部分替换C端残基,使得抑制剂对纤溶酶(PL)和血浆激肽释放酶(PK)的亲和力得到了适当提升。虽然添加一个碱性残基并未提高抑制剂的亲和力,但连接在苯环上的羧酸则增加了抑制剂对PK的选择性。