MTNR1B, Official Symbol MTNR1Bprovided by HGNC Official Full Name melatonin receptor 1Bprovided by HGNC Primary source HGNC:HGNC:7464 See related Ensembl:ENSG00000134640 MIM:600804; AllianceGenome:HGNC:7464 Gene type protein coding RefSeq status REVIEWED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as MT2; FGQTL2; MEL-1B-R Summary 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] Expression Low expression observed in reference dataset See more Orthologs mouse all