G-protein coupled opioid receptor that features as a receptor for endogenous alpha-neoendorphins and dynorphins, but has lower affinity for beta-endorphins. Also features being a receptor for various synthetic opioids and to the psychoactive diterpene salvinorin A. Ligand binding results in a conformation alter that triggers signaling by means of guanine https://buy-actavis-cough-syrup-o29371.diowebhost.com/86138302/the-basic-principles-of-actavis-promethazine-online