Aliases for HTR1A Gene
External Ids for HTR1A Gene
Previous HGNC Symbols for HTR1A Gene
Previous GeneCards Identifiers for HTR1A Gene
This gene encodes a G protein-coupled receptor for 5-hydroxytryptamine (serotonin), and belongs to the 5-hydroxytryptamine receptor subfamily. Serotonin has been implicated in a number of physiologic processes and pathologic conditions. Inactivation of this gene in mice results in behavior consistent with an increased anxiety and stress response. Mutation in the promoter of this gene has been associated with menstrual cycle-dependent periodic fevers. [provided by RefSeq, Jun 2012]
GeneCards Summary for HTR1A Gene
HTR1A (5-Hydroxytryptamine Receptor 1A) is a Protein Coding gene. Diseases associated with HTR1A include Periodic Fever, Menstrual Cycle-Dependent and Generalized Anxiety Disorder. Among its related pathways are Peptide ligand-binding receptors and Signaling by GPCR. Gene Ontology (GO) annotations related to this gene include G protein-coupled receptor activity and G protein-coupled serotonin receptor activity. An important paralog of this gene is HTR1D.
UniProtKB/Swiss-Prot Summary for HTR1A Gene
G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for various drugs and psychoactive substances. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase. Beta-arrestin family members inhibit signaling via G proteins and mediate activation of alternative signaling pathways. Signaling inhibits adenylate cyclase activity and activates a phosphatidylinositol-calcium second messenger system that regulates the release of Ca(2+) ions from intracellular stores. Plays a role in the regulation of 5-hydroxytryptamine release and in the regulation of dopamine and 5-hydroxytryptamine metabolism. Plays a role in the regulation of dopamine and 5-hydroxytryptamine levels in the brain, and thereby affects neural activity, mood and behavior. Plays a role in the response to anxiogenic stimuli.
The serotonin 5-HT1A receptor was the first 5-HT receptor to be fully sequenced. 5-HT1A receptor binding sites are located primarily in limbic brain areas, notably the hypothalamus and cortical areas. The human gene encoding this receptor has been localized to chromosome 5.