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    • 5. 发明授权
    • Kunitz domain polypeptide zkun10
    • Kunitz结构域多肽zkun10
    • US06914135B2
    • 2005-07-05
    • US10315432
    • 2002-12-09
    • Paul O. SheppardBrian A. Fox
    • Paul O. SheppardBrian A. Fox
    • A61K38/00C07K14/81C07H21/02C12Q1/34
    • C07K14/8114A61K38/00
    • Proteinase inhibitors comprising a Kunitz domain are disclosed. The Kunitz domain comprises a motif of amino acid residues as shown in SEQ ID NO:4, and the sequence of the Kunitz domain is shown in residues 57 through 107 of SEQ ID NO:2. The polypeptide also includes an N-terminal collagen domain in which a von Willebrand domain resides, and is shown in SEQ ID NO: 5. Also disclosed are methods for making the proteinase inhibitors, and expression vectors and cultured cells that are useful within the methods. The proteinase inhibitors may be used as components of cell culture media, in protein purification, and as inhibitors of protease degradation of plasma proteins.
    • 公开了包含Kunitz结构域的蛋白酶抑制剂。 Kunitz结构域包含如SEQ ID NO:4所示的氨基酸残基的基序,Kunitz结构域的序列显示于SEQ ID NO:2的残基57至107中。 多肽还包括其中von Willebrand结构域所在的N-末端胶原结构域,并且显示于SEQ ID NO:5中。还公开了制备蛋白酶抑制剂的方法,以及在该方法中有用的表达载体和培养细胞 。 蛋白酶抑制剂可以用作细胞培养基的组分,蛋白质纯化,以及作为血浆蛋白质蛋白酶降解的抑制剂。