申请人:Briggs Samuel Mark
公开号:US20070287162A1
公开(公告)日:2007-12-13
The present invention provides fluorescent cyanine dye-based nucleotide analogues, in which the cyanine dye is coupled to the γ-phosphate group of a nucleoside triphosphate. Preferred embodiments of the invention are directed to fluorescent cyanine dye-based GTP analogues which may be employed in an homogeneous FRET-based assay to measure the binding of guanine nucleotides to GPCR polypeptides, or alternatively, to measure the effect of an exogenous ligand on GPCR protein binding.