conversely , although the gtpase was noncompetitively inhibited by the atp analogue , adenylyl imidodiphosphate ( ki = 8 microm ) , and was competitively inhibited by the gtp analogue , guanylyl imidodiphosphate ( ki = 60 microm ) , gtp-induced calcium accumulation was not affected by the ntp analogues at any concentration .
C0018366
guanylyl
C0018353
gtp