[Term] id: PR:000001497 name: opioid receptor protein def: "A rhodopsin-like G-protein coupled receptor that is a translation product of the human OPRD1, OPRK1, OPRM1, or OPRL1 genes, 1:1 orthologs thereof, or a semi-ortholog thereof." [PRO:WCB, PRO:XQ] comment: Category=family. Note: The active form binds opioids. xref: IUPHARfam:50 xref: PIRSF:PIRSF038567 is_a: PR:000001094 ! rhodopsin-like G-protein coupled receptor