Fluorescent molecular probes for use in assays that measure test compound competitive binding with SAM-utilizing proteins
申请人:Barrett Stephen Douglas
公开号:US09120820B2
公开(公告)日:2015-09-01
Assay methods may generally comprise forming homogeneous assay mixtures comprising target SAM-utilizing protein, fluorescent detection analyte, and test compound, incubating, and measuring FP or TR-FRET signal emitted in order to determine a measure of test compound-SAM -utilizing protein binding. Assay mixtures comprise a SAM-utilizing protein, and a fluorescent detection analyte that binds with the SAM-utilizing protein in the absence of test compound. Assay mixtures may further comprise a test compound. Assay mixture embodiments may generate FP or TR-FRET signal properties that are a function of the inherent binding interactions of both the test compound and the detection analyte with the SAM-utilizing protein. Fluorescent detection analytes comprise a fluorophore moiety, a covalent linker moiety, and a SAM-utilizing protein ligand moiety and could be utilized in FP or TR-FRET assays to measure test compound binding.
检测方法通常包括形成均匀的检测混合物,其中包括目标SAM利用蛋白质、荧光检测分析物和测试化合物,孵育并测量发射的FP或TR-FRET信号,以确定测试化合物-SAM利用蛋白质结合的测量值。检测混合物包括一个SAM利用蛋白质和一个荧光检测分析物,在没有测试化合物的情况下与SAM利用蛋白质结合。检测混合物还可以包括测试化合物。检测混合物的实施例可以产生FP或TR-FRET信号特性,这是测试化合物和检测分析物与SAM利用蛋白质的固有结合相互作用的函数。荧光检测分析物包括荧光团、共价连接物和SAM利用蛋白质配体团,可用于FP或TR-FRET检测中测量测试化合物结合。