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    • 9. 发明授权
    • Scr SH3 binding peptides and methods of isolating and using same
    • SRC SH3结合肽及其分离和使用方法
    • US06303574B1
    • 2001-10-16
    • US08278865
    • 1994-07-22
    • Brian K. KayAndrew B. SparksJudith M. ThornLawrence A. QuilliamChanning J. Der
    • Brian K. KayAndrew B. SparksJudith M. ThornLawrence A. QuilliamChanning J. Der
    • A61K3810
    • C07K14/001A61K38/00A61K47/62G01N33/573G01N33/68
    • Peptides having general and specific binding affinities for the Src homology region 3 (SH3) domains of proteins are disclosed in the present invention. In particular, SH3 binding peptides have been isolated from three phage-displayed random peptide libraries which had been screened for isolates that bind to bacterial fusion proteins of SH3 domains and glutathione S-transferase (GST). Preferred peptides are disclosed having a core 7-mer sequence (preferably, a consensus motif) and two or more, preferably at least six, additional amino acid residues flanking the core sequence, for a total length of 9, preferably at least 13, amino acid residues and no more than about 45 amino acid residues. Such peptides manifest preferential binding affinities for certain SH3 domains. The preferred peptides exhibit specific binding affinities for the Src-family of proteins. In vitro and in vivo results are presented which demonstrate the biochemical activity of such peptides.
    • 在本发明中公开了对蛋白质的Src同源性区域3(SH3)结构域具有一般和特异性结合亲和力的肽。 特别地,已经从已经筛选了与SH3结构域和谷胱甘肽S-转移酶(GST)的细菌融合蛋白结合的分离株的三个噬菌体展示的随机肽文库中分离出SH3结合肽。 公开了优选的肽,其具有核心序列的核心7-聚体序列(优选共有基序)和两个或更多个,优选至少六个另外的核心序列侧翼的氨基酸残基,总长度为9,优选至少13个氨基 酸残基和不超过约45个氨基酸残基。 这些肽表现出对某些SH3结构域的优先结合亲和力。 优选的肽显示出对Src家族蛋白质的特异性结合亲和力。 提出体外和体内结果,证明了这些肽的生化活性。