addition of the gtp analog , 5'-guanylyl imidodiphosphate [ gpp ( nh ) p ] , caused an additional 2.8-fold augmentation of adenylate cyclase activity to 6 times over basal levels and 3.7 times greater than that seen in the presence of gpp ( nh ) p alone .
C0018353
gtp
C0018366
gpp ( nh ) p