incorporation of 32p from [ gamma-32p ] atp into phosphatidylinositol 4,5-bisphosphate ( pip2 ) in membranes isolated from rat brain was enhanced in a concentration-dependent manner by the gtp analogue guanosine 5'-o- ( thio ) triphosphate ( gtp gamma s ) .
C0018353
gtp
C0079469
gtp gamma s