guanosine 5'- [ gamma-thio ] triphosphate ( gtp gamma s ) and guanosine 5'- [ beta gamma-imido ] triphosphate ( gpp [ nh ] p ) , non-hydrolysable analogues of gtp , stimulate ip3 production in the absence of angiotensin ii with kd values of 0.19 microm and 2.4 microm , respectively .
C0079469
gtp gamma s
C0018353
gtp