Mu Opioid receptor antibody [N1], N-term

The OPRM1 gene encodes the mu opioid receptor, which is the primary site of action for the most commonly used opioids, including morphine, heroin, fentanyl, and methadone. It is also the primary receptor for endogenous opioid peptides beta-endorphin (see POMC, MIM 17683) and the enkephalins (see PENK, MIM 13133). The OPRM1 receptor is a membrane of the G protein-coupled receptor family (Bond et al., 1998 [PubMed 9689128]). There are at least 3 types of opioid receptors, mu, kappa (OPRK1; MIM 165196), and delta (OPRD1; MIM 165195), each with a distinct pharmacologic profile (Chen et al., 1993 [PubMed 8393525]).[supplied by OMIM]