the time course of opioid receptor binding disappearance and loss of responsiveness of the opioid-controlled gtpase and adenylate cyclase were compared in membranes derived from ng108-15 cells pretreated with the opioid peptide agonist [ d-ala2 , d-leu5 ] enkephalin ( dadle ) .
C0205753
opioid
C0014298
enkephalin