however , the inhibitory dose-response curves of adenylate cyclase to r-pia , nicotinic acid , gtp , guanylylimidodiphosphate , and guanosine 5'-o- ( 3-thiotriphosphate ) were unaltered by adrenalectomy , indicating that the inhibitory function of gi is unimpaired by adrenalectomy .
C0018353
gtp
C0079469
guanosine