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    • 4. 发明申请
    • ECOTIN-VARIANT MODULATORS OF SERINE PROTEASES
    • 丝氨酸蛋白酶的变体调节剂
    • WO0061634A3
    • 2001-03-08
    • PCT/US0009790
    • 2000-04-12
    • UNIV CALIFORNIACRAIK CHARLES SFLETTERICK ROBERT J
    • CRAIK CHARLES SFLETTERICK ROBERT J
    • C07K14/81C12N15/31G01N33/68
    • C07K14/811
    • This invention provides a class binding proteins that specifically bind to polypeptides having a chymotrypsin fold (e.g. serine proteases). When the target polypeptides are serine proteases the binding proteins can act to inhibit or activate the serine protease. The binding proteins are based on the structure of ecotin. It was discovered that modification of the amino or carboxyl terminus and/or randomization of one or more of loops 50s, 60s, 80s or 100s will provide an ecotin variant library from which can be selected binding molecules (e.g. protease modulators) specific to virtually any serine protease. Depending on the ecotin variant and the target serine protease, the modulator can act as a serine protease inhibitor or as a serine protease activator. Specific agonists of Factor IXa are disclosed.
    • 本发明提供了与具有胰凝乳蛋白酶折叠的多肽(例如丝氨酸蛋白酶)特异性结合的类结合蛋白。 当靶多肽是丝氨酸蛋白酶时,结合蛋白可起到抑制或激活丝氨酸蛋白酶的作用。 结合蛋白是基于生物素的结构。 已发现氨基或羧基末端的修饰和/或一个或多个环50s,60s,80s或100s的随机化将提供生物素变体文库,可以从其中选择特异于实际上任何的结合分子(例如蛋白酶调节剂) 丝氨酸蛋白酶。 根据生物素变体和靶丝氨酸蛋白酶,调节剂可以作为丝氨酸蛋白酶抑制剂或丝氨酸蛋白酶活化剂。 公开了因子IXa的特异性激动剂。