the stimulatory effects of gtp and gtp gamma s were dose dependent ( gtp ed50 = 3.9 x 10 ( -6 ) m ; gtp gamma s ed50 = 2.5 x 10 ( -7 ) m ) and progressive over 10 minutes and required the presence of mg2+.gtp ( 10 ( -4 ) m ) and gtp gamma s ( 10 ( -5 ) m ) decreased membrane [ 3h ] phosphoinositides concomitantly with increased [ 3h ] ip2 and [ 3h ] ip3 .
C0018353
gtp
C0079469
gtp gamma s