Method and system for assaying transferase activity
    3.
    发明申请
    Method and system for assaying transferase activity 审中-公开
    测定转移酶活性的方法和系统

    公开(公告)号:US20070264667A1

    公开(公告)日:2007-11-15

    申请号:US10934647

    申请日:2004-09-03

    IPC分类号: G01N33/53

    CPC分类号: C12Q1/48

    摘要: Embodiments of the present invention are directed to sensitive, specific, and commercially feasible assays for transferase activity. Various embodiments of the present invention include artificial, multifunctional substrates specific for particular transferases that are chemically altered by the transferases to produce easily detectable, modified, multifunctional substrates. In one class of embodiments, the artificial, multifunctional substrate comprises a small-molecule-substrate component, or small-molecule-substrate-analog component, linked by a linking component to a biopolymer-substrate-mimetic or biopolymer-substrate-analog component. At least two, generally well-separated reporter moieties are included in the artificial, multifunctional substrate. The transferase, for which the artificial, multifunctional substrate is designed to serve as an assay reagent, catalyzes a generally covalent modification of the artificial, multifunctional substrate to produce a modified, artificial, multifunctional substrate reaction product in which the two reporter moieties are closely positioned to one another. When closely positioned to one another, the reporter moieties are detectable by one of various instrumental techniques.

    摘要翻译: 本发明的实施方案涉及用于转移酶活性的敏感的,特异性的和商业可行的测定。 本发明的各种实施方案包括对特定转移酶特异的人造的多功能底物,其通过转移酶进行化学改变以产生易于检测的,修饰的多功能底物。 在一类实施方案中,人造多功能底物包括通过连接组分与生物聚合物 - 底物 - 模拟物或生物聚合物 - 底物 - 类似物组分连接的小分子底物组分或小分子底物 - 类似物组分。 在人造多功能底物中包含至少两个通常分离得很好的报道分子。 将人造多功能底物设计用作测定试剂的转移酶催化人造多功能底物的通常共价修饰,以产生修饰的人造多功能底物反应产物,其中两个报道部分紧密定位 彼此。 当彼此紧密定位时,报道分子可通过各种仪器技术之一检测。