申请人:TAING Meng
公开号:US20090092986A1
公开(公告)日:2009-04-09
Provided are nucleotide-dye conjugates and related compounds in which a dye is linked to a nucleobase directly or indirectly by an anionic linker. The anionic character of the linker is provided by one or more anionic moieties which are present in the linker, such as phosphate, phosphonate, sulfonate, and carboxylate groups. When the dye is a provided as a donor/acceptor dye pair, the anionic linker can be located between the donor and the acceptor, or between the nucleobase and either the donor or acceptor, or both. In one embodiment, conjugates of the invention provide enhanced electrophoretic mobility characteristics to sequencing fragments, e.g., for dideoxy sequencing using labeled terminators.
提供了核苷酸染料共轭物和相关化合物,其中染料通过阴离子连接基团直接或间接地与核碱基相连。连接基团的阴离子特性由存在于连接基团中的一个或多个阴离子基团提供,例如磷酸酯、膦酸酯、磺酸盐和羧酸盐基团。当染料作为给体/受体染料对提供时,阴离子连接基团可以位于给体和受体之间,或位于核碱基和给体或受体之间,或两者之间。在一种实施例中,本发明的共轭物提供了增强的电泳迁移特性,例如用标记的终止子进行二硫代氧核苷酸测序。