addition of gtp ( 10 ( -4 ) m ) or guanosine 5'-0- ( 3-thiotriphosphate , gtp gamma s , 10 ( -5 ) m ) to membranes prepared from umr-106 cells labeled with [ 3h ] myo-inositol increased both [ 3h ] inositol trisphosphate ( ip3 ) and [ 3h ] inositol bisphosphate ( ip2 ) formation .
C0018353
gtp
C0079469
gtp gamma s