the influence of 5'-guanylylimidodiphosphate , a stable analog of gtp , on agonist binding , determined directly ( using [ 3h ] oxotremorine-m ) or indirectly ( in [ 3h ] n-methylscopolamine/carbamylcholine competition studies ) , was greatest from 16 to 20 degrees .
C0018366
guanylylimidodiphosphate
C0018353
gtp