Histamine H2 receptor

NameHistamine H2 receptor
Synonyms
  • Gastric receptor I
  • H2R
Gene NameHRH2
OrganismHuman
Amino acid sequence
>lcl|BSEQ0000224|Histamine H2 receptor
MAPNGTASSFCLDSTACKITITVVLAVLILITVAGNVVVCLAVGLNRRLRNLTNCFIVSL
AITDLLLGLLVLPFSAIYQLSCKWSFGKVFCNIYTSLDVMLCTASILNLFMISLDRYCAV
MDPLRYPVLVTPVRVAISLVLIWVISITLSFLSIHLGWNSRNETSKGNHTTSKCKVQVNE
VYGLVDGLVTFYLPLLIMCITYYRIFKVARDQAKRINHISSWKAATIREHKATVTLAAVM
GAFIICWFPYFTAFVYRGLRGDDAINEVLEAIVLWLGYANSALNPILYAALNRDFRTGYQ
QLFCCRLANRNSHKTSLRSNASQLSRTQSREPRQQEEKPLKLQVWSGTEVTAPQGATDR
Number of residues359
Molecular Weight40097.65
Theoretical pI9.39
GO Classification
Functions
  • histamine receptor activity
Processes
  • adenylate cyclase-activating dopamine receptor signaling pathway
  • learning
  • phospholipase C-activating dopamine receptor signaling pathway
  • synaptic transmission, dopaminergic
  • positive regulation of vasoconstriction
  • memory
  • regulation of synaptic plasticity
  • visual learning
  • digestive tract development
  • toxin transport
  • immune response
  • epithelial cell morphogenesis
  • gastrin-induced gastric acid secretion
  • gland development
  • sensory perception of chemical stimulus
  • histamine-induced gastric acid secretion
  • G-protein coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger
  • positive regulation of adenylate cyclase activity involved in G-protein coupled receptor signaling pathway
Components
  • plasma membrane
  • integral component of plasma membrane
General FunctionHistamine receptor activity
Specific FunctionThe H2 subclass of histamine receptors mediates gastric acid secretion. Also appears to regulate gastrointestinal motility and intestinal secretion. Possible role in regulating cell growth and differentiation. The activity of this receptor is mediated by G proteins which activate adenylyl cyclase and, through a separate G protein-dependent mechanism, the phosphoinositide/protein kinase (PKC) signaling pathway (By similarity).
Pfam Domain Function
Transmembrane Regions23-44 58-81 93-114 135-159 181-204 235-258 268-289
GenBank Protein ID184088
UniProtKB IDP25021
UniProtKB Entry NameHRH2_HUMAN
Cellular LocationCell membrane
Gene sequence
>lcl|BSEQ0018919|Histamine H2 receptor (HRH2)
ATGGCACCCAATGGCACAGCCTCTTCCTTTTGCCTGGACTCTACCGCATGCAAGATCACC
ATCACCGTGGTCCTTGCGGTCCTCATCCTCATCACCGTTGCTGGCAATGTGGTCGTCTGT
CTGGCCGTGGGCTTGAACCGCCGGCTCCGCAACCTGACCAATTGTTTCATCGTGTCCTTG
GCTATCACTGACCTGCTCCTCGGCCTCCTGGTGCTGCCCTTCTCTGCCATCTACCAGCTG
TCCTGCAAGTGGAGCTTTGGCAAGGTCTTCTGCAATATCTACACCAGCCTGGATGTGATG
CTCTGCACAGCCTCCATTCTTAACCTCTTCATGATCAGCCTCGACCGGTACTGCGCTGTC
ATGGACCCACTGCGGTACCCTGTGCTGGTCACCCCAGTTCGGGTCGCCATCTCTCTGGTC
TTAATTTGGGTCATCTCCATTACCCTGTCCTTTCTGTCTATCCACCTGGGGTGGAACAGC
AGGAACGAGACCAGCAAGGGCAATCATACCACCTCTAAGTGCAAAGTCCAGGTCAATGAA
GTGTACGGGCTGGTGGATGGGCTGGTCACCTTCTACCTCCCGCTACTGATCATGTGCATC
ACCTACTACCGCATCTTCAAGGTCGCCCGGGATCAGGCCAAGAGGATCAATCACATTAGC
TCCTGGAAGGCAGCCACCATCAGGGAGCACAAAGCCACAGTGACACTGGCCGCCGTCATG
GGGGCCTTCATCATCTGCTGGTTTCCCTACTTCACCGCGTTTGTGTACCGTGGGCTGAGA
GGGGATGATGCCATCAATGAGGTGTTAGAAGCCATCGTTCTGTGGCTGGGCTATGCCAAC
TCAGCCCTGAACCCCATCCTGTATGCTGCGCTGAACAGAGACTTCCGCACCGGGTACCAA
CAGCTCTTCTGCTGCAGGCTGGCCAACCGCAACTCCCACAAAACTTCTCTGAGGTCCAAC
GCCTCTCAGCTGTCCAGGACCCAAAGCCGAGAACCCAGGCAACAGGAAGAGAAACCCCTG
AAGCTCCAGGTGTGGAGTGGGACAGAAGTCACGGCCCCCCAGGGAGCCACAGACAGACCA
TGGCTTTGCCTTCCAGAATGCTGGTCTGTGGAACTGACCCATTCATTCATTCATTTGTTC
ATTCATTCATTTGCAAACATTCATCCAATTCCCACCACATGCCAGGAATTATGA
GenBank Gene IDM64799
GeneCard IDNot Available
GenAtlas IDHRH2
HGNC IDHGNC:5183
Chromosome Location5
Locus5q35.2
References
  1. Gantz I, Munzert G, Tashiro T, Schaffer M, Wang L, DelValle J, Yamada T: Molecular cloning of the human histamine H2 receptor. Biochem Biophys Res Commun. 1991 Aug 15;178(3):1386-92. 1714721
  2. Nishi T, Koike T, Oka T, Maeda M, Futai M: Identification of the promoter region of the human histamine H2-receptor gene. Biochem Biophys Res Commun. 1995 May 16;210(2):616-23. 7755641
  3. Murakami H, Sun-Wada GH, Matsumoto M, Nishi T, Wada Y, Futai M: Human histamine H2 receptor gene: multiple transcription initiation and tissue-specific expression. FEBS Lett. 1999 May 28;451(3):327-31. 10371214
  4. Kitano T, Liu YH, Ueda S, Saitou N: Human-specific amino acid changes found in 103 protein-coding genes. Mol Biol Evol. 2004 May;21(5):936-44. Epub 2004 Mar 10. 15014171
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  7. Orange PR, Heath PR, Wright SR, Pearson RC: Allelic variations of the human histamine H2 receptor gene. Neuroreport. 1996 May 17;7(7):1293-6. 8817552
  8. Del Valle J, Gantz I: Novel insights into histamine H2 receptor biology. Am J Physiol. 1997 Nov;273(5 Pt 1):G987-96. 9374694