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    HTR2A 5-hydroxytryptamine (serotonin) receptor 2A, G protein-coupled [ Homo sapiens (human) ]

    Gene ID: 3356, updated on 14-May-2013
    Official Symbol
    HTR2Aprovided by HGNC
    Official Full Name
    5-hydroxytryptamine (serotonin) receptor 2A, G protein-coupledprovided by HGNC
    Primary source
    HGNC:5293
    Locus tag
    RP11-147L20.2
    See related
    HPRD:01638; MIM:182135
    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
    HTR2; 5-HT2A
    Summary
    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]
    Location :
    13q14-q21
    Sequence :
    Chromosome: 13; NC_000013.10 (47405677..47471211, complement)
    See HTR2A in Epigenomics, MapViewer

    Chromosome 13 - NC_000013.10Genomic Context describing neighboring genes Neighboring gene leucine-rich repeats and calponin homology (CH) domain containing 1 Neighboring gene esterase D Neighboring gene guanine nucleotide binding protein (G protein), gamma 5 pseudogene 5 Neighboring gene nucleosome assembly protein 1-like 4 pseudogene 3

    GeneRIFs: Gene References Into Functions What's a GeneRIF?

    Products Interactant Other Gene Complex Source Pubs Description
    P28223 E2a-Pbx1 associated protein ANKS1B    HPRD  PubMed  
    P28223 P78352 DLG4    HPRD  PubMed  
    P28223 O00303 EIF3F    HPRD  PubMed  
    P28223 P15104 GLUL    HPRD  PubMed  
    P28223 P29992 GNA11    HPRD  PubMed  
    P28223 P63096 GNAI1    HPRD  PubMed  
    P28223 P50148 GNAQ    HPRD  PubMed  
    P28223 O60674 JAK2    HPRD  PubMed  
    P28223 P78559 MAP1A    HPRD  PubMed  
    P28223 Q13084 MRPL28    HPRD  PubMed  
    P28223 O96000 NDUFB10    HPRD  PubMed  
    P28223 Q13232 NME3    HPRD  PubMed  
    P28223 Q16288 NTRK3    HPRD  PubMed  
    P28223 Q15165 PON2    HPRD  PubMed  
    P28223 P53041 PPP5C    HPRD  PubMed  
    P28223 P51812 RPS6KA3    HPRD  PubMed  
    BioGRID:109588 BioGRID:107315 CBL    BioGRID  PubMed Affinity Capture-Western 
    BioGRID:109588 BioGRID:108086 DLG4    BioGRID  PubMed Affinity Capture-Western 
    BioGRID:109588 BioGRID:109920 JAK2    BioGRID  PubMed Affinity Capture-Western 
    • Amine ligand-binding receptors, organism-specific biosystem (from REACTOME)
      Amine ligand-binding receptors, organism-specific biosystemThe class A (rhodopsin-like) GPCRs that bind to classical biogenic amine ligands are annotated here. The amines involved (acetylcholine, adrenaline, noradrenaline, dopamine, serotonin and histamine)...
    • Calcium signaling pathway, organism-specific biosystem (from KEGG)
      Calcium signaling pathway, organism-specific biosystemCa2+ that enters the cell from the outside is a principal source of signal Ca2+. Entry of Ca2+ is driven by the presence of a large electrochemical gradient across the plasma membrane. Cells use this...
    • Calcium signaling pathway, conserved biosystem (from KEGG)
      Calcium signaling pathway, conserved biosystemCa2+ that enters the cell from the outside is a principal source of signal Ca2+. Entry of Ca2+ is driven by the presence of a large electrochemical gradient across the plasma membrane. Cells use this...
    • Class A/1 (Rhodopsin-like receptors), organism-specific biosystem (from REACTOME)
      Class A/1 (Rhodopsin-like receptors), organism-specific biosystemRhodopsin-like receptors (class A/1) are the largest group of GPCRs and are the best studied group from a functional and structural point of view. They show great diversity at the sequence level and ...
    • G alpha (q) signalling events, organism-specific biosystem (from REACTOME)
      G alpha (q) signalling events, organism-specific biosystemThe classic signalling route for G alpha (q) is activation of phospholipase C beta thereby triggering phosphoinositide hydrolysis, calcium mobilization and protein kinase C activation. This provides ...
    • GPCR downstream signaling, organism-specific biosystem (from REACTOME)
      GPCR downstream signaling, organism-specific biosystemG protein-coupled receptors (GPCRs) are classically defined as the receptor, G-protein and downstream effectors, the alpha subunit of the G-protein being the primary signaling molecule. However, it h...
    • GPCR ligand binding, organism-specific biosystem (from REACTOME)
      GPCR ligand binding, organism-specific biosystemThere are more than 800 G-protein coupled receptor (GPCRs) in the human genome, making it the largest receptor superfamily. GPCRs are also the largest class of drug targets, involved in virtually all...
    • GPCRs, Class A Rhodopsin-like, organism-specific biosystem (from WikiPathways)
      GPCRs, Class A Rhodopsin-like, organism-specific biosystemThis pathway was created using the GPCRDB (Horn et al., 1998), http://www.cmbi.kun.nl/7tm/. The groupings are based on the GPCR phylogenetic tree available from the GPCRDB and the training sets used ...
    • GPCRs, Other, organism-specific biosystem (from WikiPathways)
      GPCRs, Other, organism-specific biosystemThis pathway was created using the GPCRDB (Horn et al., 1998), http://www.cmbi.kun.nl/7tm/. The groupings are based on the GPCR phylogenetic tree available from the GPCRDB and the training sets used ...
    • Gap junction, organism-specific biosystem (from KEGG)
      Gap junction, organism-specific biosystemGap junctions contain intercellular channels that allow direct communication between the cytosolic compartments of adjacent cells. Each gap junction channel is formed by docking of two 'hemichannels'...
    • Gap junction, conserved biosystem (from KEGG)
      Gap junction, conserved biosystemGap junctions contain intercellular channels that allow direct communication between the cytosolic compartments of adjacent cells. Each gap junction channel is formed by docking of two 'hemichannels'...
    • Gastrin-CREB signalling pathway via PKC and MAPK, organism-specific biosystem (from REACTOME)
      Gastrin-CREB signalling pathway via PKC and MAPK, organism-specific biosystemGastrin is a hormone whose main function is to stimulate secretion of hydrochloric acid by the gastric mucosa, which results in gastrin formation inhibition. This hormone also acts as a mitogenic fac...
    • Monoamine GPCRs, organism-specific biosystem (from WikiPathways)
      Monoamine GPCRs, organism-specific biosystem
      Monoamine GPCRs
    • Neuroactive ligand-receptor interaction, organism-specific biosystem (from KEGG)
      Neuroactive ligand-receptor interaction, organism-specific biosystem
      Neuroactive ligand-receptor interaction
    • Neuroactive ligand-receptor interaction, conserved biosystem (from KEGG)
      Neuroactive ligand-receptor interaction, conserved biosystem
      Neuroactive ligand-receptor interaction
    • SIDS Susceptibility Pathways, organism-specific biosystem (from WikiPathways)
      SIDS Susceptibility Pathways, organism-specific biosystemIn this model, we provide an integrated view of Sudden Infant Death Syndrome (SIDS) at the level of implicated tissues, signaling networks and genetics. The purpose of this model is to serve as an ov...
    • Serotonergic synapse, organism-specific biosystem (from KEGG)
      Serotonergic synapse, organism-specific biosystemSerotonin (5-Hydroxytryptamine, 5-HT) is a monoamine neurotransmitter that plays important roles in physiological functions such as learning and memory, emotion, sleep, pain, motor function and endoc...
    • Serotonin Receptor 2 and ELK-SRF/GATA4 signaling, organism-specific biosystem (from WikiPathways)
      Serotonin Receptor 2 and ELK-SRF/GATA4 signaling, organism-specific biosystemThis pathway is courtesy of Ariadne Genomics Pathway Studio.
    • Serotonin receptors, organism-specific biosystem (from REACTOME)
      Serotonin receptors, organism-specific biosystemSerotonin (5-HT) is a monoamine neurotransmitter that plays an important role as a modulator of anger, aggression, body temperature, mood, sleep, sexuality, appetite, metabolism, as well as stimulati...
    • Signal Transduction, organism-specific biosystem (from REACTOME)
      Signal Transduction, organism-specific biosystemSignal transduction is a process in which extracellular signals elicit changes in cell state and activity. Transmembrane receptors sense changes in the cellular environment by binding ligands, such a...
    • Signaling by GPCR, organism-specific biosystem (from REACTOME)
      Signaling by GPCR, organism-specific biosystemG protein-coupled receptors (GPCRs; 7TM receptors; seven transmembrane domain receptors; heptahelical receptors; G protein-linked receptors [GPLR]) are the largest family of transmembrane receptors i...

    Markers

    Homology

    Gene Ontology Provided by GOA

    Function Evidence Code Pubs
    1-(4-iodo-2,5-dimethoxyphenyl)propan-2-amine binding IDA
    Inferred from Direct Assay
    more info
    PubMed 
    G-protein alpha-subunit binding IEA
    Inferred from Electronic Annotation
    more info
     
    drug binding IDA
    Inferred from Direct Assay
    more info
    PubMed 
    phosphatidylinositol phospholipase C activity IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    protein complex binding IEA
    Inferred from Electronic Annotation
    more info
     
    serotonin binding IDA
    Inferred from Direct Assay
    more info
    PubMed 
    serotonin receptor activity IDA
    Inferred from Direct Assay
    more info
    PubMed 
    Process Evidence Code Pubs
    ERK1 and ERK2 cascade IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    aging IEA
    Inferred from Electronic Annotation
    more info
     
    cell death IEA
    Inferred from Electronic Annotation
    more info
     
    memory IEA
    Inferred from Electronic Annotation
    more info
     
    negative regulation of potassium ion transport IEA
    Inferred from Electronic Annotation
    more info
     
    negative regulation of synaptic transmission, glutamatergic IEA
    Inferred from Electronic Annotation
    more info
     
    phosphatidylinositol 3-kinase cascade IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    phosphatidylinositol biosynthetic process IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    phospholipase C-activating serotonin receptor signaling pathway IEA
    Inferred from Electronic Annotation
    more info
     
    positive regulation of MAP kinase activity IEA
    Inferred from Electronic Annotation
    more info
     
    positive regulation of cell proliferation IEA
    Inferred from Electronic Annotation
    more info
     
    positive regulation of diacylglycerol biosynthetic process IEA
    Inferred from Electronic Annotation
    more info
     
    positive regulation of inositol trisphosphate biosynthetic process IEA
    Inferred from Electronic Annotation
    more info
     
    positive regulation of vasoconstriction IEA
    Inferred from Electronic Annotation
    more info
     
    regulation of behavior IEA
    Inferred from Electronic Annotation
    more info
     
    regulation of blood vessel size IEA
    Inferred from Electronic Annotation
    more info
     
    regulation of dopamine secretion IEA
    Inferred from Electronic Annotation
    more info
     
    regulation of hormone secretion IEA
    Inferred from Electronic Annotation
    more info
     
    release of sequestered calcium ion into cytosol IDA
    Inferred from Direct Assay
    more info
    PubMed 
    release of sequestered calcium ion into cytosol IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    response to drug IDA
    Inferred from Direct Assay
    more info
    PubMed 
    response to stress IEA
    Inferred from Electronic Annotation
    more info
     
    sensory perception of pain IEA
    Inferred from Electronic Annotation
    more info
     
    serotonin receptor signaling pathway IMP
    Inferred from Mutant Phenotype
    more info
    PubMed 
    sleep IEA
    Inferred from Electronic Annotation
    more info
     
    smooth muscle contraction IEA
    Inferred from Electronic Annotation
    more info
     
    synaptic transmission TAS
    Traceable Author Statement
    more info
    PubMed 
    temperature homeostasis IEA
    Inferred from Electronic Annotation
    more info
     
    Component Evidence Code Pubs
    cytosol IEA
    Inferred from Electronic Annotation
    more info
     
    dendritic shaft IEA
    Inferred from Electronic Annotation
    more info
     
    integral to plasma membrane IEA
    Inferred from Electronic Annotation
    more info
     
    plasma membrane IDA
    Inferred from Direct Assay
    more info
    PubMed 
    plasma membrane TAS
    Traceable Author Statement
    more info
     
    Preferred Names
    5-hydroxytryptamine receptor 2A
    Names
    5-hydroxytryptamine receptor 2A
    5-HT-2A
    5-HT2 receptor
    serotonin 5-HT-2A receptor

    RefSeqs maintained independently of Annotated Genomes

    These reference sequences exist independently of genome builds. Explain

    These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

    Genomic

    1. NG_013011.1 RefSeqGene

      Range
      4959..70493
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    mRNA and Protein(s)

    1. NM_000621.4NP_000612.1  5-hydroxytryptamine receptor 2A isoform 1

      Status: REVIEWED

      Description
      Transcript Variant: This variant (1) represents the longer transcript and encodes the longer protein (isoform 1).
      Source sequence(s)
      AK314132, AL136958, DA233936, DA247468, DN990785
      Consensus CDS
      CCDS9405.1
      UniProtKB/Swiss-Prot
      P28223
      Conserved Domains (2) summary
      pfam00001
      Location:97380
      Blast Score: 529
      7tm_1; 7 transmembrane receptor (rhodopsin family)
      cl10458
      Location:89207
      Blast Score: 111
      7tm_4; Olfactory receptor
    2. NM_001165947.2NP_001159419.1  5-hydroxytryptamine receptor 2A isoform 2

      Status: REVIEWED

      Description
      Transcript Variant: This variant (2) lacks an in-frame exon in the 5' coding region, compared to variant 1, that causes translation initiation at an upstream AUG. The resulting protein (isoform 2) has a distinct N-terminus and is shorter than isoform 1.
      Source sequence(s)
      AL136958, BX647777, DA233936, DA247468
      Consensus CDS
      CCDS53867.1
      Conserved Domains (1) summary
      pfam00001
      Location:54296
      Blast Score: 437
      7tm_1; 7 transmembrane receptor (rhodopsin family)

    RefSeqs of Annotated Genomes: Homo sapiens Annotation Release 104

    The following sections contain reference sequences that belong to a specific genome build. Explain

    Reference GRCh37.p10 Primary Assembly

    Genomic

    1. NC_000013.10 Reference GRCh37.p10 Primary Assembly

      Range
      47405677..47471211, complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Alternate HuRef

    Genomic

    1. AC_000145.1 Alternate HuRef

      Range
      28199237..28264796, complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Alternate CHM1_1.0

    Genomic

    1. NC_018924.1 Alternate CHM1_1.0

      Range
      28349226..28414772, complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

      Supplemental Content

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