Alpha-2B adrenergic receptor

NameAlpha-2B adrenergic receptor
Synonyms
  • ADRA2L1
  • ADRA2RL1
  • Alpha-2 adrenergic receptor subtype C2
  • Alpha-2B adrenoceptor
  • Alpha-2B adrenoreceptor
  • Alpha-2BAR
Gene NameADRA2B
OrganismHuman
Amino acid sequence
>lcl|BSEQ0010396|Alpha-2B adrenergic receptor
MDHQDPYSVQATAAIAAAITFLILFTIFGNALVILAVLTSRSLRAPQNLFLVSLAAADIL
VATLIIPFSLANELLGYWYFRRTWCEVYLALDVLFCTSSIVHLCAISLDRYWAVSRALEY
NSKRTPRRIKCIILTVWLIAAVISLPPLIYKGDQGPQPRGRPQCKLNQEAWYILASSIGS
FFAPCLIMILVYLRIYLIAKRSNRRGPRAKGGPGQGESKQPRPDHGGALASAKLPALASV
ASAREVNGHSKSTGEKEEGETPEDTGTRALPPSWAALPNSGQGQKEGVCGASPEDEAEEE
EEEEEECEPQAVPVSPASACSPPLQQPQGSRVLATLRGQVLLGRGVGAIGGQWWRRRAQL
TREKRFTFVLAVVIGVFVLCWFPFFFSYSLGAICPKHCKVPHGLFQFFFWIGYCNSSLNP
VIYTIFNQDFRRAFRRILCRPWTQTAW
Number of residues447
Molecular Weight49565.8
Theoretical pI8.52
GO Classification
Functions
  • epinephrine binding
  • alpha2-adrenergic receptor activity
Processes
  • activation of MAPK activity by adrenergic receptor signaling pathway
  • activation of protein kinase B activity
  • epidermal growth factor-activated receptor transactivation by G-protein coupled receptor signaling pathway
  • negative regulation of epinephrine secretion
  • regulation of smooth muscle contraction
  • blood coagulation
  • cell-cell signaling
  • platelet activation
  • regulation of vasoconstriction
  • G-protein coupled receptor signaling pathway
  • negative regulation of norepinephrine secretion
  • positive regulation of neuron differentiation
Components
  • plasma membrane
  • integral component of plasma membrane
General FunctionEpinephrine binding
Specific FunctionAlpha-2 adrenergic receptors mediate the catecholamine-induced inhibition of adenylate cyclase through the action of G proteins. The rank order of potency for agonists of this receptor is clonidine > norepinephrine > epinephrine = oxymetazoline > dopamine > p-tyramine = phenylephrine > serotonin > p-synephrine / p-octopamine. For antagonists, the rank order is yohimbine > chlorpromazine > phentolamine > mianserine > spiperone > prazosin > alprenolol > propanolol > pindolol.
Pfam Domain Function
Transmembrane Regions13-38 49-69 87-107 129-149 173-193 370-393 403-423
GenBank Protein ID178198
UniProtKB IDP18089
UniProtKB Entry NameADA2B_HUMAN
Cellular LocationCell membrane
Gene sequence
>lcl|BSEQ0010397|Alpha-2B adrenergic receptor (ADRA2B)
ATGGACCACCAGGACCCCTACTCCGTGCAGGCCACAGCGGCCATAGCGGCGGCCATCACC
TTCCTCATTCTCTTTACCATCTTCGGCAACGCTCTGGTCATCCTGGCTGTGTTGACCAGC
CGCTCGCTGCGCGCCCCTCAGAACCTGTTCCTGGTGTCGCTGGCCGCCGCCGACATCCTG
GTGGCCACGCTCATCATCCCTTTCTCGCTGGCCAACGAGCTGCTGGGCTACTGGTACTTC
CGGCGCACGTGGTGCGAGGTGTACCTGGCGCTCGACGTGCTCTTCTGCACCTCGTCCATC
GTGCACCTGTGCGCCATCAGCCTGGACCGCTACTGGGCCGTGAGCCGCGCGCTGGAGTAC
AACTCCAAGCGCACCCCGCGCCGCATCAAGTGCATCATCCTCACTGTGTGGCTCATCGCC
GCCGTCATCTCGCTGCCGCCCCTCATCTACAAGGGCGACCAGGGCCCCCAGCCGCGCGGG
CGCCCCCAGTGCAAGCTCAACCAGGAGGCCTGGTACATCCTGGCCTCCAGCATCGGATCT
TTCTTTGCTCCTTGCCTCATCATGATCCTTGTCTACCTGCGCATCTACCTGATCGCCAAA
CGCAGCAACCGCAGAGGTCCCAGGGCCAAGGGGGGGCCTGGGCAGGGTGAGTCCAAGCAG
CCCCGACCCGACCATGGTGGGGCTTTGGCCTCAGCCAAACTGCCAGCCCTGGCCTCTGTG
GCTTCTGCCAGAGAGGTCAACGGACACTCGAAGTCCACTGGGGAGAAGGAGGAGGGGGAG
ACCCCTGAAGATACTGGGACCCGGGCCTTGCCACCCAGTTGGGCTGCCCTTCCCAACTCA
GGCCAGGGCCAGAAGGAGGGTGTTTGTGGGGCATCTCCAGAGGATGAAGCTGAAGAGGAG
GAAGAGGAGGAGGAGGAGGAGGAAGAGTGTGAACCCCAGGCAGTGCCAGTGTCTCCGGCC
TCAGCTTGCAGCCCCCCGCTGCAGCAGCCACAGGGCTCCCGGGTGCTGGCCACCCTACGT
GGCCAGGTGCTCCTGGGCAGGGGCGTGGGTGCTATAGGTGGGCAGTGGTGGCGTCGACGG
GCGCAGCTGACCCGGGAGAAGCGCTTCACCTTCGTGCTGGCTGTGGTCATTGGCGTTTTT
GTGCTCTGCTGGTTCCCCTTCTTCTTCAGCTACAGCCTGGGAGCCATCTGCCCGAAGCAC
TGCAAGGTGCCCCATGGCCTCTTCCAGTTCTTCTTCTGGATCGGCTACTGCAACAGCTCA
CTGAACCCTGTTATCTACACCATCTTCAACCAGGACTTCCGCCGTGCCTTCCGGAGGATC
CTGTGCCGCCCGTGGACCCAGACGGCCTGGTGA
GenBank Gene IDM34041
GeneCard IDNot Available
GenAtlas IDADRA2B
HGNC IDHGNC:282
Chromosome Location2
Locus2p13-q13
References
  1. Lomasney JW, Lorenz W, Allen LF, King K, Regan JW, Yang-Feng TL, Caron MG, Lefkowitz RJ: Expansion of the alpha 2-adrenergic receptor family: cloning and characterization of a human alpha 2-adrenergic receptor subtype, the gene for which is located on chromosome 2. Proc Natl Acad Sci U S A. 1990 Jul;87(13):5094-8. 2164221
  2. Weinshank RL, Zgombick JM, Macchi M, Adham N, Lichtblau H, Branchek TA, Hartig PR: Cloning, expression, and pharmacological characterization of a human alpha 2B-adrenergic receptor. Mol Pharmacol. 1990 Nov;38(5):681-8. 2172775
  3. Small KM, Brown KM, Forbes SL, Liggett SB: Polymorphic deletion of three intracellular acidic residues of the alpha 2B-adrenergic receptor decreases G protein-coupled receptor kinase-mediated phosphorylation and desensitization. J Biol Chem. 2001 Feb 16;276(7):4917-22. Epub 2000 Oct 30. 11056163
  4. Cayla C, Heinonen P, Viikari L, Schaak S, Snapir A, Bouloumie A, Karvonen MK, Pesonen U, Scheinin M, Paris H: Cloning, characterisation and identification of several polymorphisms in the promoter region of the human alpha2B-adrenergic receptor gene. Biochem Pharmacol. 2004 Feb 1;67(3):469-78. 15037199
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  6. Chang AC, Ho TF, Chang NC: In vitro amplification by polymerase chain reaction of a partial gene encoding the third subtype of alpha-2 adrenergic receptor in humans. Biochem Biophys Res Commun. 1990 Oct 30;172(2):817-23. 2173582
  7. Li C, Fan Y, Lan TH, Lambert NA, Wu G: Rab26 modulates the cell surface transport of alpha2-adrenergic receptors from the Golgi. J Biol Chem. 2012 Dec 14;287(51):42784-94. doi: 10.1074/jbc.M112.410936. Epub 2012 Oct 26. 23105096
  8. De Fusco M, Vago R, Striano P, Di Bonaventura C, Zara F, Mei D, Kim MS, Muallem S, Chen Y, Wang Q, Guerrini R, Casari G: The alpha2B-adrenergic receptor is mutant in cortical myoclonus and epilepsy. Ann Neurol. 2014 Jan;75(1):77-87. doi: 10.1002/ana.24028. Epub 2014 Jan 2. 24114805