申请人:PE Corporation (NY)
公开号:US20020102590A1
公开(公告)日:2002-08-01
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物直接或间接地与核碱基相连。连接物的阴离子性质由连接物中存在的一个或多个阴离子基团提供,例如磷酸酯基、膦酸酯基、磺酸基和羧酸基。当染料作为给体/受体染料对提供时,阴离子连接物可以位于给体和受体之间,或者位于核碱基和给体或受体之间,或两者之间。在一种实施方案中,本发明的共轭物提供了增强的电泳迁移特性,例如,用标记终止子进行二氧基测序的测序片段。