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    ADRA2B adrenoceptor alpha 2B [ Homo sapiens ]

    Gene ID: 151, updated on 24-May-2012

    Summary

    Official Symbol
    ADRA2Bprovided by HGNC
    Official Full Name
    adrenoceptor alpha 2Bprovided by HGNC
    Primary source
    HGNC:282
    See related
    Ensembl:ENSG00000222040; HPRD:00086; MIM:104260; Vega:OTTHUMG00000154375
    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
    ADRA2L1; ADRARL1; ADRA2RL1; ALPHA2BAR; alpha-2BAR
    Summary
    Alpha-2-adrenergic receptors are members of the G protein-coupled receptor superfamily. They include 3 highly homologous subtypes: alpha2A, alpha2B, and alpha2C. These receptors have a critical role in regulating neurotransmitter release from sympathetic nerves and from adrenergic neurons in the central nervous system. This intronless gene encodes the alpha2B subtype, which was observed to associate with eIF-2B, a guanine nucleotide exchange protein that functions in regulation of translation. A polymorphic variant of the alpha2B subtype, which lacks 3 glutamic acids from a glutamic acid repeat element, was identified to have decreased G protein-coupled receptor kinase-mediated phosphorylation and desensitization; this polymorphic form is also associated with reduced basal metabolic rate in obese subjects and may therefore contribute to the pathogenesis of obesity. [provided by RefSeq, Aug 2011]

    Genomic context

    Location :
    2q11.1
    Sequence :
    Chromosome: 2; NC_000002.11 (96778623..96781888, complement)
    See ADRA2B in Epigenomics, MapViewer

    Chromosome 2 - NC_000002.11Genomic Context describing neighboring genes Neighboring gene ankyrin repeat domain 36C Neighboring gene fumarylacetoacetate hydrolase domain containing 2A pseudogene Neighboring gene glycerol-3-phosphate acyltransferase 2, mitochondrial Neighboring gene astacin-like metallo-endopeptidase (M12 family) Neighboring gene dual specificity phosphatase 2

    Genomic regions, transcripts, and products

    Bibliography

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

    Interactions

    Products Interactant Other Gene Complex Source Pubs Description
    P18089 Q14232 EIF2B1    HPRD  PubMed  
    P18089 P04899 GNAI2    HPRD  PubMed  
    P18089 P63104 YWHAZ    HPRD  PubMed  
    BioGRID:106660 BioGRID:108286 EIF2B1    BioGRID  PubMed Reconstituted Complex 
    BioGRID:106660 BioGRID:124202 PPP1R9B    BioGRID  PubMed Reconstituted Complex 

    General gene information

    Markers

    Homology

    Pathways from BioSystems

    • Adrenaline signalling through Alpha-2 adrenergic receptor, organism-specific biosystem (from REACTOME)
      Adrenaline signalling through Alpha-2 adrenergic receptor, organism-specific biosystemAdrenaline (epinephrine) signalling via the alpha-2 adrenergic receptor has many effects including inhibition of insulin release in pancreas, iinduction of glucagon release from pancreas, contraction...
    • Adrenoceptors, organism-specific biosystem (from REACTOME)
      Adrenoceptors, organism-specific biosystemThe adrenoceptors (adrenergic receptors) are targets for the catecholamines adrenaline (epinephrine) and noradrenaline (norepinephrine). These receptors are widespread in the body and binding of cate...
    • 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)...
    • 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 (i) signalling events, organism-specific biosystem (from REACTOME)
      G alpha (i) signalling events, organism-specific biosystemThe classical signalling mechanism for G alpha (i) is inhibition of the cAMP dependent pathway through inhibition of adenylate cyclase. Decreased production of cAMP from ATP results in decreased act...
    • G alpha (z) signalling events, organism-specific biosystem (from REACTOME)
      G alpha (z) signalling events, organism-specific biosystemThe heterotrimeric G protein Gz, is a member of the Gi family. Unlike other Gi family members it lacks an ADP ribosylation site cysteine four residues from the carboxyl terminus and is thus pertussis...
    • 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 ...
    • Hemostasis, organism-specific biosystem (from REACTOME)
      Hemostasis, organism-specific biosystemHemostasis is a physiological response that culminates in the arrest of bleeding from an injured vessel. Under normal conditions the vascular endothelium supports vasodilation, inhibits platelet adhe...
    • 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
    • Platelet Aggregation (Plug Formation), organism-specific biosystem (from REACTOME)
      Platelet Aggregation (Plug Formation), organism-specific biosystemThe tethering of platelets to the site of vascular injury is the first step in the formation of a platelet thrombus. Firm adhesion of these tethered platelets, as well as the additional recruitment o...
    • Platelet activation, signaling and aggregation, organism-specific biosystem (from REACTOME)
      Platelet activation, signaling and aggregation, organism-specific biosystemPlatelet activation begins with the initial binding of adhesive ligands and of the excitatory platelet agonists (released or generated at the sites of vascular trauma) to cognate receptors on the pla...
    • 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...

    Gene Ontology Provided by GOA

    Function Evidence Code Pubs
    G-protein coupled receptor activity IEA
    Inferred from Electronic Annotation
    more info
     
    adrenergic receptor activity IEA
    Inferred from Electronic Annotation
    more info
     
    alpha2-adrenergic receptor activity IDA
    Inferred from Direct Assay
    more info
    PubMed 
    epinephrine binding IDA
    Inferred from Direct Assay
    more info
    PubMed 
    protein binding IPI
    Inferred from Physical Interaction
    more info
    PubMed 
    receptor activity IEA
    Inferred from Electronic Annotation
    more info
     
    signal transducer activity IEA
    Inferred from Electronic Annotation
    more info
     
    Component Evidence Code Pubs
    integral to plasma membrane TAS
    Traceable Author Statement
    more info
    PubMed 
    plasma membrane TAS
    Traceable Author Statement
    more info
     

    General protein information

    Preferred Names
    alpha-2B adrenergic receptor
    Names
    alpha-2B adrenergic receptor
    alpha-2B adrenoceptor
    alpha-2B adrenoreceptor
    G-protein coupled receptor
    adrenergic receptor alpha 2B
    adrenergic, alpha-2B-, receptor
    alpha-2-adrenergic receptor-like 1
    ADRA2B adrenergic, alpha-2B-, receptor
    alpha-2 adrenergic receptor subtype C2

    NCBI Reference Sequences (RefSeq)

    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.

    mRNA and Protein(s)

    1. NM_000682.5NP_000673.2  alpha-2B adrenergic receptor

      Status: REVIEWED

      Source sequence(s)
      AA887330, AC092603, AY548167, CV806541
      Consensus CDS
      CCDS56129.1
      UniProtKB/TrEMBL
      A2RUS0
      UniProtKB/Swiss-Prot
      P18089
      Related
      ENSP00000387281, OTTHUMP00000205577, ENST00000409345, OTTHUMT00000334990
      Conserved Domains (2) summary
      pfam00001
      Location:358426
      Blast Score: 178
      7tm_1; 7 transmembrane receptor (rhodopsin family)
      cl10458
      Location:30152
      Blast Score: 117
      7tm_4; Olfactory receptor

    RefSeqs of Annotated Genomes: Build 37.3

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

    Reference GRCh37.p5 Primary Assembly

    Genomic

    1. NC_000002.11 Reference GRCh37.p5 Primary Assembly

      Range
      96778623..96781888, complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Alternate HuRef

    Genomic

    1. AC_000134.1 Alternate HuRef

      Range
      90739785..90743060, complement
      Download
      GenBank, FASTA, Sequence Viewer (Graphics)

    Related Sequences

    Nucleotide Protein
    Heading Accession and Version
    genomic AC092603.2 AAX93218.1
    genomic AF005900.3 AAB62558.1
    genomic AF316895.1 AAK01635.1
    genomic AY548167.1 AAS55646.1
    genomic CH471207.2 EAW71390.1
    genomic DQ057076.1 AAY43127.1
    genomic EU332847.1 ABY87536.1
    genomic M34041.1 AAA51666.1
    genomic M38742.1 AAA62823.1
    mRNA AA887330.1 None
    mRNA BC133021.1 AAI33022.1
    mRNA BC136537.1 AAI36538.1
    mRNA BF475329.1 None
    mRNA CV806541.1 None
    Protein Accession Links
    GenPept Link UniProtKB Link
    P18089.2 GenPept UniProtKB/Swiss-Prot:P18089

      Supplemental Content

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