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    • 6. 发明申请
    • LOOK-THROUGH MUTAGENESIS FOR DEVELOPING ALTERED POLYPEPTIDES WITH ENHANCED PROPERTIES
    • 突变致突变体用于增强特性开发修饰多肽
    • WO2006023144A3
    • 2006-08-17
    • PCT/US2005024140
    • 2005-07-06
    • BIOREN INCCREA ROBERTO
    • CREA ROBERTO
    • C07H21/02C07K16/00
    • C12N15/102C07K16/00C07K16/18C07K2317/565C07K2317/622C07K2317/92C12N15/1093G01N33/6854G01N33/6857
    • A method of mutagenesis by which a predetermined amino acid is introduced into each and every position of a selected set of positions in a preselected region (or several different regions) of a polypeptide to produce a library of polypeptide analogs is disclosed. The method is based on the premise that certain amino acids play a crucial role in the structure and function of proteins and thus is capable of identifying and distinguishing functional amino acid residues ("hot spots") from non-functional amino acids residues ("cold spots") within a polypeptide or portion thereof. Libraries can be generated which contain only desired polypeptide analogs and are of reasonable size for screening. The libraries can be used to study the role of specific amino acids in polypeptide structure and function and to develop new or improved polypeptides such as antibodies, antibody fragments, single chain antibodies, enzymes, and ligands.
    • 公开了一种诱变方法,通过该方法将预定氨基酸引入多肽的预选区域(或多个不同区域)中选定位置组的每个位置以产生多肽类似物文库。 该方法基于这样的前提:某些氨基酸在蛋白质的结构和功能中起关键作用,因此能够从非功能性氨基酸残基(“冷的(cold))中鉴别和区分功能性氨基酸残基(”热点“ 点“)在多肽或其部分内。 可以产生仅包含期望的多肽类似物并且具有合理大小用于筛选的文库。 文库可用于研究特定氨基酸在多肽结构和功能中的作用,并开发新的或改进的多肽,如抗体,抗体片段,单链抗体,酶和配体。