BUY ACTAVIS COUGH SYRUP FUNDAMENTALS EXPLAINED

G-protein coupled opioid receptor that functions to be a receptor for endogenous alpha-neoendorphins and dynorphins, but has small affinity for beta-endorphins. Also functions as a receptor for a variety of synthetic opioids and to the psychoactive diterpene salvinorin A. Ligand binding will cause a conformation change that triggers signaling by us