the addition of camp , cgmp , and gtp , guanylyl imidodiphosphate ( gmp-pnp ) , or epinephrine to the bath does not alter maximum ca-activated force , but when these drugs are added with 1 % nonionic detergent to the bath , contractility increases by as much as 180 % .
C0018353
gtp
C0018366
gmp-pnp