sodium fluoride or non-hydrolysable analogues of gtp , guanosine 5'- [ gamma-thio ] triphosphate ( gtp gamma s ) and guanosine 5'- [ beta , gamma-imido ] triphosphate ( gmp-pnp ) , induced sustained and dose-dependent contraction of skinned mpa .
C0018353
gtp
C0079469
gtp gamma s