An assay is provided for nucleic acids that can be post-synthetically labeled, wherein modified nucleoside triphosphates are used that are more efficiently and specifically incorporated during nucleic acid synthesis than labeled nucleoside triphosphates. In a preferred embodiment, nucleoside &agr;-thiotriphosphates are utilized. Maleimide or iodoacetamide conjugating moieties can be attached post-synthetically. The conjugating moieties may include a reporter group. Also disclosed are new methods for detecting single nucleotide polymorphism.
提供了一种可在合成后标记核酸的检测方法,其中使用了修饰的核苷
三磷酸酯,这种核苷
三磷酸酯在核酸合成过程中比标记的核苷
三磷酸酯更有效、更特异。在一个优选的实施方案中,使用的是核苷
三磷酸酯。马来
酰亚胺或
碘乙酰胺共轭分子可在合成后连接。共轭分子可包括报告基团。还公开了检测单核苷酸多态性的新方法。