the rank order in ( +/- ) - [ 3h ] nitrendipine binding inhibition assays ( with decreasing potency ) was : atp ( ic50 11.8 microm ) = adenosine 5'-o- ( 2-thiotriphosphate ( atp gamma s ) greater than 5'-adenylylimidodiphosphate ( appnhp ) greater than adp much greater than gtp = itp = ctp greater than utp greater than guanosine 5'-tetraphosphate ( gt4p ) greater than guanosine 5'-o- ( 2-thiotriphosphate ) ( gtp gamma s ) greater than 5'-guanylylimidodiphosphate ( gppnhp ) greater than idp greater than cdp greater than gdp .
C0018353
gtp
C0018366
guanylylimidodiphosphate