the effect of the addition of guanosine 5'-o- ( 3-thiotriphosphate ) ( gtp gamma s ) , the gtp analog which activates the inhibitory guanine nucleotide-binding regulatory protein of adenylyl cyclase ( ni ) , on the pertussis toxin-mediated adp-ribosylation reaction was studied in detail .
C0079469
gtp gamma s
C0018353
gtp