Assay for ubiquitin mediated proteolysis
    3.
    发明申请
    Assay for ubiquitin mediated proteolysis 审中-公开
    泛素介导的蛋白水解测定

    公开(公告)号:US20080038768A1

    公开(公告)日:2008-02-14

    申请号:US11501508

    申请日:2006-08-08

    IPC分类号: C12Q1/37

    CPC分类号: C12Q1/37 G01N33/542

    摘要: The present invention provides methods and compositions useful in the screening for agents that modulate activity of a deubiquitinating enzyme. In one embodiment, the invention relates to methods for measuring a deubiquitination activity comprising combining a deubiquitinating enzyme (DUB) with a substrate comprising a ubiquitin moiety and a fluorescently labeled compound under conditions allowing for deubiquitinating activity and measuring an altered fluorescence polarization and/or fluorescence lifetime of the released fluorescently labeled compound The invention also relates to a substrate library comprising peptides of the formula (Z)a(X)mK(X)n(Z)b useful e.g. for the determination of the substrate specificity of a deubiquitinating enzyme.

    摘要翻译: 本发明提供了用于筛选调节去泛素化酶的活性的试剂的方法和组合物。 在一个实施方案中,本发明涉及用于测量去泛素化活性的方法,包括在允许去泛素化活性和测量改变的荧光偏振和/或荧光的条件下,将去泛素化酶(DUB)与包含泛素部分和荧光标记化合物的底物组合 所释放的荧光标记化合物的寿命本发明还涉及包含式(Z)的肽的底物文库。(X)K(X)n (Z)B 有用,例如 用于测定去泛素化酶的底物特异性。