in the presence of various concentrations of forskolin ( 10 nm-100 microm ) , the stimulation of adenylate cyclase elicited by gtp , gpp ( nh ) p , and naf is potentiated 194-1,825 % , 122-1,141 % , and 208-938 % , respectively , compared with the stimulation by these agents above basal activity in the absence of forskolin .
C0018353
gtp
C0018366
gpp ( nh ) p