the relative affinity of neurohypophyseal hormones for the receptor component of the adenylate cyclase system ( as defined by the concentration of hormone required for half-maximal stimulation ) had the order [ 8-arginine ] -vasopressin > [ 8-lysine ] -vasopressin > > oxytocin ( avp > lvp > > ot ) for rat , mouse , rabbit , and ox ;
C0032017
neurohypophyseal hormones
C0030095
oxytocin