the non-hydrolyzable gtp analogue , guanosine 5'-o- ( 3-thiotriphosphate ) ( gtp gamma s ) and cyclic amp potentiated the ca2+-evoked secretion of alpha-melanocyte-stimulating hormone ( alpha-msh ) from permeabilized neurointermediate lobe ( il ) cells of rat pituitary gland .
C0018353
gtp
C0079469
gtp