AAM21129.1
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UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
43,940 Da
NCBI Official Full Name
5-hydroxytryptamine receptor 2A
NCBI Official Synonym Full Names
5-hydroxytryptamine (serotonin) receptor 2A, G protein-coupled
NCBI Official Synonym Symbols
NCBI Protein Information
5-hydroxytryptamine receptor 2A; 5-HT-2A; 5-HT2 receptor; serotonin 5-HT-2A receptor
UniProt Protein Name
5-hydroxytryptamine receptor 2A
UniProt Synonym Protein Names
Serotonin receptor 2A
UniProt Synonym Gene Names
UniProt Entry Name
5HT2A_HUMAN
NCBI Summary for HTR2A
This gene encodes one of the receptors for serotonin, a neurotransmitter with many roles. Mutations in this gene are associated with susceptibility to schizophrenia and obsessive-compulsive disorder, and are also associated with response to the antidepressant citalopram in patients with major depressive disorder (MDD). MDD patients who also have a mutation in intron 2 of this gene show a significantly reduced response to citalopram as this antidepressant downregulates expression of this gene. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]
UniProt Comments for HTR2A
5-HT(2A): This is one of the several different receptors for 5- hydroxytryptamine (serotonin), a biogenic hormone that functions as a neurotransmitter, a hormone, and a mitogen. This receptor mediates its action by association with G proteins that activate a phosphatidylinositol-calcium second messenger system. This receptor is involved in tracheal smooth muscle contraction, bronchoconstriction, and control of aldosterone production. Belongs to the G-protein coupled receptor 1 family.
Protein type: Membrane protein, integral; Membrane protein, multi-pass; Receptor, GPCR; GPCR, family 1
Chromosomal Location of Human Ortholog: 13q14-q21
Cellular Component: cell soma; axon; integral to plasma membrane; cytoplasmic membrane-bound vesicle; plasma membrane; dendritic shaft; caveola; cytosol
Molecular Function: serotonin binding; serotonin receptor activity; protein complex binding; G-protein alpha-subunit binding; drug binding
Biological Process: urinary bladder smooth muscle contraction; cell death; phosphoinositide 3-kinase cascade; negative regulation of potassium ion transport; thermoregulation; regulation of dopamine secretion; positive regulation of MAP kinase activity; synaptic transmission; behavioral response to cocaine; positive regulation of cell proliferation; detection of temperature stimulus involved in sensory perception of pain; serotonin receptor signaling pathway; artery smooth muscle contraction; regulation of behavior; aging; response to drug; serotonin receptor, phospholipase C activating pathway; regulation of hormone secretion; negative regulation of synaptic transmission, glutamatergic; positive regulation of phosphatidylinositol biosynthetic process; sleep; memory; cellular calcium ion homeostasis; detection of mechanical stimulus involved in sensory perception of pain; positive regulation of peptidyl-tyrosine phosphorylation; phospholipase C activation; release of sequestered calcium ion into cytosol; positive regulation of glycolysis; positive regulation of vasoconstriction; positive regulation of fat cell differentiation
Disease: Schizophrenia; Alcohol Dependence; Anorexia Nervosa, Susceptibility To, 1; Obsessive-compulsive Disorder; Major Depressive Disorder
Research Articles on HTR2A
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Products associated with HTR2A elisa kit
Pathways associated with HTR2A elisa kit
Diseases associated with HTR2A elisa kit
Organs/Tissues associated with HTR2A elisa kit
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