the guanosine triphosphate analog , gtp gamma s , prolonged the survival of excised calcium channels independently of the presence of adenosine 3',5'-monophosphate ( camp ) , adenosine triphosphate , camp-activated protein kinase , and the protein kinase c activator tetradecanoyl phorbol acetate .
C0018353
guanosine triphosphate
C0079469
gtp gamma s