Aliases for HTR2C Gene
External Ids for HTR2C Gene
Previous Symbols for HTR2C Gene
This gene encodes a seven-transmembrane G-protein-coupled receptor. The encoded protein responds to signaling through the neurotransmitter serotonin. The mRNA of this gene is subject to multiple RNA editing events, where adenosine residues encoded by the genome are converted to inosines. RNA editing is predicted to alter the structure of the second intracellular loop, thereby generating alternate protein forms with decreased ability to interact with G proteins. Abnormalities in RNA editing of this gene have been detected in victims of suicide that suffer from depression. In addition, naturally-occuring variation in the promoter and 5' non-coding and coding regions of this gene may show statistically-significant association with mental illness and behavioral disorders. Alternative splicing results in multiple different transcript variants. [provided by RefSeq, Jan 2015]
GeneCards Summary for HTR2C Gene
HTR2C (5-Hydroxytryptamine (Serotonin) Receptor 2C, G Protein-Coupled) is a Protein Coding gene. Diseases associated with HTR2C include cyclothymic disorder and premature ejaculation. Among its related pathways are Signaling by GPCR and CREB Pathway. GO annotations related to this gene include drug binding and serotonin binding. An important paralog of this gene is CHRM4.
UniProtKB/Swiss-Prot for HTR2C Gene
G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for various drugs and psychoactive substances, including ergot alkaloid derivatives, 1-2,5,-dimethoxy-4-iodophenyl-2-aminopropane (DOI) and lysergic acid diethylamide (LSD). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors. Beta-arrestin family members inhibit signaling via G proteins and mediate activation of alternative signaling pathways. Signaling activates a phosphatidylinositol-calcium second messenger system that modulates the activity of phosphatidylinositol 3-kinase and down-stream signaling cascades and promotes the release of Ca(2+) ions from intracellular stores. Regulates neuronal activity via the activation of short transient receptor potential calcium channels in the brain, and thereby modulates the activation of pro-opiomelacortin neurons and the release of CRH that then regulates the release of corticosterone. Plays a role in the regulation of appetite and eating behavior, responses to anxiogenic stimuli and stress. Plays a role in insulin sensitivity and glucose homeostasis.
Serotonin 5-HT2C receptors, previously known as 5-HT1C receptors, are located primarily in the choroid plexus, cortex, limbic system and basal ganglia. 5-HT2C receptors play a role in CSF volume regulation, thermoregulation, penile erections and anxiety. The human 5-HT2C receptor gene has been localized to chromosome X (Xq24).