MOR-1: a Gi-protein-coupled receptor for beta-endorphin, morphine and other opiates. Inhibits neurotransmitter release by reducing calcium ion currents and increasing potassium ion conductance. Ligand-binding inactivates adenylyl cyclase, and activates a variety of G-beta-gamma-dependent pathways including the MAPK and the PI3K/Akt cascades. Two splice-variant isoforms have been described.
Protein type: Receptor, GPCR; GPCR, family 1; Membrane protein, multi-pass; Membrane protein, integral
Chromosomal Location of Human Ortholog: 6q24-q25
Cellular Component: dendrite cytoplasm; Golgi apparatus; neuron projection; focal adhesion; integral to plasma membrane; endoplasmic reticulum; plasma membrane; perikaryon; sarcolemma; lipid raft
Molecular Function: G-protein coupled receptor activity; voltage-gated calcium channel activity; neuropeptide binding; protein domain specific binding; protein binding; G-protein alpha-subunit binding; G-protein beta-subunit binding; filamin binding; beta-endorphin receptor activity
Biological Process: positive regulation of nitric oxide biosynthetic process; wound healing; cellular response to stress; locomotory behavior; response to lipopolysaccharide; behavioral response to ethanol; sensory perception of pain; synaptic transmission; negative regulation of cell proliferation; elevation of cytosolic calcium ion concentration; neuropeptide signaling pathway; positive regulation of appetite; sensory perception; dopamine receptor, adenylate cyclase activating pathway; acute inflammatory response to antigenic stimulus; response to food; positive regulation of neurogenesis; negative regulation of nitric oxide biosynthetic process; negative regulation of adenylate cyclase activity; response to cocaine; G-protein signaling, coupled to cyclic nucleotide second messenger; reduction of cytosolic calcium ion concentration; opioid receptor, adenylate cyclase inhibiting pathway; G-protein signaling, coupled to IP3 second messenger (phospholipase C activating); regulation of sensory perception of pain; regulation of excitatory postsynaptic membrane potential
Disease: Epilepsy, Idiopathic Generalized
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