addition of guanosine 5'-o- ( 2-thiodiphosphate ) ( gdp beta s ) prior to addition of agonist and gtp , 5'-guanylyl imidodiphosphate ( gpp ( nh ) p ) , or gtp gamma s blocked in a concentration-dependent manner the stimulatory effect of guanine nucleotide .
C0018353
gtp
C0018328
guanine nucleotide