however , the potency series of gtp analogues to alter norepinephrine binding was gtp gamma s greater than gppnhp greater than or equal to gtp greater than or equal to gdp greater than or equal to gppchp greater than gmp ( where gtp gamma s represents guanosine 5'-o- ( thiotriphosphate ) and gppchp represents guanyl-5'-yl ( beta , gamma-methylene ) diphosphonate ) and was identical to that for inhibition of [ 125i ] iodoglucagon binding .
C0018353
gtp
C0079469
gtp gamma s