the order of effectiveness of these analogues in promoting the transducin-mediated activation of the phosphodiesterase was gtp gamma s greater than gtp much greater than gppnhp greater than gtp gamma oph much greater than gppch2p greater than gtp gamma ome greater than gtp gamma f gtp gamma s was more than a 1000 times as potent as gtp gamma f in activating the phosphodiesterase .
C0018353
gtp
C0079469
gtp gamma