Aliases for MTNR1B Gene
External Ids for MTNR1B Gene
Previous GeneCards Identifiers for MTNR1B Gene
This gene encodes one of two high affinity forms of a receptor for melatonin, the primary hormone secreted by the pineal gland. This gene product is an integral membrane protein that is a G-protein coupled, 7-transmembrane receptor. It is found primarily in the retina and brain although this detection requires RT-PCR. It is thought to participate in light-dependent functions in the retina and may be involved in the neurobiological effects of melatonin. [provided by RefSeq, Jul 2008]
GeneCards Summary for MTNR1B Gene
MTNR1B (Melatonin Receptor 1B) is a Protein Coding gene. Diseases associated with MTNR1B include Diabetes Mellitus, Noninsulin-Dependent and Idiopathic Scoliosis. Among its related pathways are Eicosanoid ligand-binding receptors and Sweet Taste Signaling. GO annotations related to this gene include G-protein coupled receptor activity and melatonin receptor activity. An important paralog of this gene is MTNR1A.
UniProtKB/Swiss-Prot for MTNR1B Gene
High affinity receptor for melatonin. Likely to mediate the reproductive and circadian actions of melatonin. The activity of this receptor is mediated by pertussis toxin sensitive G proteins that inhibit adenylate cyclase activity.
Melatonin receptors are a group of high affinity Gi/G0 protein-coupled receptors, which are split into two subtypes; MT1 and MT2. They are widely distributed with high concentrations found in the brain (especially in the suprachiasmatic nucleus) and in the retina.