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    • 5. 发明申请
    • PROTON NMR SPECTROSCOPY FOR BIOCHEMICAL SCREENING
    • 用于生物化学筛选的原核NMR光谱
    • WO2013078138A1
    • 2013-05-30
    • PCT/US2012/065893
    • 2012-11-19
    • OSI PHARMACEUTICALS, LLC
    • LI, YingjieMA, LifuMULVIHILL, Mark, J.
    • C12Q1/00C12Q1/30C12Q1/48
    • C12Q1/30C12Q1/008C12Q1/48
    • High-Throughput Screening (HTS) of large compound libraries is the method of choice for discovery of lead compounds for drug development. The present invention provides novel, sensitive and broadly applicable NMR screening methods in which the H8 signal of a purine-containing substrate or product, or the H6 signal of a pyrimidine-containing substrate or product, is used to monitor enzymic reactions that utilize such substrates. Experiments can be performed in real time or in an endpoint assay format using protein and substrate concentrations comparable to the ones used by other HTS techniques. Application of the NMR method to the assay of the enzymes creatine kinase and phosphodiesterase 2A is presented. The methods are applicable to any of a multitude of enzymes that utilize purine nucleoside substrates (e.g. ATP, GTP) or pyrimidine nucleoside substrates (e.g. CTP, UDP-GlcNac), including protein kinases, GTPases, and lipid kinases.
    • 大型化合物库的高通量筛选(HTS)是用于发现药物开发的铅化合物的首选方法。 本发明提供新颖,灵敏和广泛应用的NMR筛选方法,其中含嘌呤的底物或产物的H8信号或含嘧啶的底物或产物的H6信号用于监测利用这种底物的酶反应 。 实验可以使用与其他HTS技术使用的蛋白质和底物浓度相当的实时或终点分析格式进行。 提出了NMR方法对酶肌酸激酶和磷酸二酯酶2A的测定的应用。 该方法适用于使用嘌呤核苷底物(例如ATP,GTP)或嘧啶核苷底物(例如CTP,UDP-GlcNac)(包括蛋白激酶,GTP酶和脂质激酶)的任何多种酶。