1 ) the enzyme shows an up to 4-fold higher cgmp synthesis in the presence of gtp analogues with half-maximal activation at about 1 microm guanosine 5'-o- ( 3-thio ) triphosphate ( gtp gamma s ) or 100 microm guanosine 5'- ( beta , gamma-imido ) triphosphate ;
C0018353
gtp
C0079469
gtp gamma s