P2RX2

Protein-coding gene in the species Homo sapiens
P2RX2
Identifiers
AliasesP2RX2, DFNA41, P2X2, purinergic receptor P2X 2
External IDsOMIM: 600844; MGI: 2665170; HomoloGene: 14251; GeneCards: P2RX2; OMA:P2RX2 - orthologs
Gene location (Human)
Chromosome 12 (human)
Chr.Chromosome 12 (human)[1]
Chromosome 12 (human)
Genomic location for P2RX2
Genomic location for P2RX2
Band12q24.33Start132,618,776 bp[1]
End132,622,388 bp[1]
Gene location (Mouse)
Chromosome 5 (mouse)
Chr.Chromosome 5 (mouse)[2]
Chromosome 5 (mouse)
Genomic location for P2RX2
Genomic location for P2RX2
Band5|5 FStart110,487,678 bp[2]
End110,491,078 bp[2]
RNA expression pattern
Bgee
HumanMouse (ortholog)
Top expressed in
  • gastric mucosa

  • right lung

  • right uterine tube

  • prostate

  • caput epididymis

  • corpus epididymis

  • hippocampus proper

  • spleen

  • upper lobe of left lung

  • amygdala
Top expressed in
  • otolith organ

  • utricle

  • seminiferous tubule

  • spermatocyte

  • spermatid

  • cochlea

  • stria vascularis

  • prostate

  • Greater petrosal nerve

  • neural tube
More reference expression data
BioGPS


More reference expression data
Gene ontology
Molecular function
  • purinergic nucleotide receptor activity
  • extracellularly ATP-gated cation channel activity
  • ion channel activity
  • ligand-gated ion channel activity
  • identical protein binding
  • ATP binding
  • ATP-gated ion channel activity
Cellular component
  • integral component of membrane
  • membrane
  • receptor complex
  • integral component of nuclear inner membrane
  • integral component of plasma membrane
  • intracellular anatomical structure
  • apical plasma membrane
  • plasma membrane
  • postsynapse
  • neuronal cell body
Biological process
  • peristalsis
  • response to ATP
  • positive regulation of calcium-mediated signaling
  • response to hypoxia
  • positive regulation of calcium ion transport into cytosol
  • urinary bladder smooth muscle contraction
  • hearing
  • ion transport
  • response to organic substance
  • cation transmembrane transport
  • neuromuscular synaptic transmission
  • behavioral response to pain
  • neuromuscular junction development
  • skeletal muscle fiber development
  • detection of hypoxic conditions in blood by carotid body chemoreceptor signaling
  • protein homooligomerization
  • response to carbohydrate
  • sensory perception of taste
  • chemical synaptic transmission
  • blood coagulation
  • purinergic nucleotide receptor signaling pathway
  • excitatory postsynaptic potential
  • response to ischemia
  • cation transport
  • ion transmembrane transport
Sources:Amigo / QuickGO
Orthologs
SpeciesHumanMouse
Entrez

22953

231602

Ensembl

ENSG00000187848

ENSMUSG00000029503

UniProt

Q9UBL9

Q8K3P1

RefSeq (mRNA)
NM_001282164
NM_001282165
NM_012226
NM_016318
NM_170682

NM_170683
NM_174872
NM_174873

NM_001164833
NM_001164834
NM_153400
NM_001310700
NM_001310701

RefSeq (protein)
NP_001269093
NP_001269094
NP_036358
NP_057402
NP_733782

NP_733783
NP_777361
NP_777362

NP_001158305
NP_001158306
NP_001297629
NP_001297630
NP_700449

Location (UCSC)Chr 12: 132.62 – 132.62 MbChr 5: 110.49 – 110.49 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

P2X purinoceptor 2 is a protein that in humans is encoded by the P2RX2 gene.[5][6][7]

The product of this gene belongs to the family of purinoceptors for ATP. This receptor functions as a cation conducting ligand-gated ion channel. Binding to ATP mediates synaptic transmission between neurons and from neurons to smooth muscle. Six transcript variants encoding six distinct isoforms have been identified for this gene.[7]

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000187848 – Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000029503 – Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Lynch KJ, Touma E, Niforatos W, Kage KL, Burgard EC, van Biesen T, Kowaluk EA, Jarvis MF (Dec 1999). "Molecular and functional characterization of human P2X(2) receptors". Mol Pharmacol. 56 (6): 1171–81. doi:10.1124/mol.56.6.1171. PMID 10570044.
  6. ^ Brake AJ, Wagenbach MJ, Julius D (Oct 1994). "New structural motif for ligand-gated ion channels defined by an ionotropic ATP receptor". Nature. 371 (6497): 519–23. Bibcode:1994Natur.371..519B. doi:10.1038/371519a0. PMID 7523952. S2CID 4371044.
  7. ^ a b "Entrez Gene: P2RX2 purinergic receptor P2X, ligand-gated ion channel, 2".

Further reading

  • North RA (2002). "Molecular physiology of P2X receptors". Physiol. Rev. 82 (4): 1013–67. doi:10.1152/physrev.00015.2002. PMID 12270951.
  • Barrera NP, Ormond SJ, Henderson RM, et al. (2005). "Atomic force microscopy imaging demonstrates that P2X2 receptors are trimers but that P2X6 receptor subunits do not oligomerize". J. Biol. Chem. 280 (11): 10759–65. doi:10.1074/jbc.M412265200. PMID 15657042.
  • Mason HS, Bourke S, Kemp PJ (2005). "Selective modulation of ligand-gated P2X purinoceptor channels by acute hypoxia is mediated by reactive oxygen species". Mol. Pharmacol. 66 (6): 1525–35. doi:10.1124/mol.104.000851. PMID 15331767. S2CID 24536809.
  • Aschrafi A, Sadtler S, Niculescu C, et al. (2004). "Trimeric architecture of homomeric P2X2 and heteromeric P2X1+2 receptor subtypes". J. Mol. Biol. 342 (1): 333–43. doi:10.1016/j.jmb.2004.06.092. PMID 15313628.
  • Boué-Grabot E, Emerit MB, Toulmé E, et al. (2004). "Cross-talk and co-trafficking between rho1/GABA receptors and ATP-gated channels". J. Biol. Chem. 279 (8): 6967–75. doi:10.1074/jbc.M307772200. PMID 14660627.
  • Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
  • Järlebark LE, Housley GD, Raybould NP, et al. (2003). "ATP-gated ion channels assembled from P2X2 receptor subunits in the mouse cochlea". NeuroReport. 13 (15): 1979–84. doi:10.1097/00001756-200210280-00030. PMID 12395104. S2CID 10991307.
  • Khakh BS, Zhou X, Sydes J, et al. (2000). "State-dependent cross-inhibition between transmitter-gated cation channels" (PDF). Nature. 406 (6794): 405–10. Bibcode:2000Natur.406..405K. doi:10.1038/35019066. PMID 10935636. S2CID 4500837.
  • Brändle U, Spielmanns P, Osteroth R, et al. (1997). "Desensitization of the P2X(2) receptor controlled by alternative splicing". FEBS Lett. 404 (2–3): 294–8. doi:10.1016/S0014-5793(97)00128-2. PMID 9119082. S2CID 39951168.
  • Lewis C, Neidhart S, Holy C, et al. (1995). "Coexpression of P2X2 and P2X3 receptor subunits can account for ATP-gated currents in sensory neurons". Nature. 377 (6548): 432–5. Bibcode:1995Natur.377..432L. doi:10.1038/377432a0. PMID 7566120. S2CID 4361850.

External links

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

  • v
  • t
  • e
Cys-loop receptors
5-HT/serotonin
GABA
  • GABAA
    • α1
    • α2
    • α3
    • α4
    • α5
    • α6
    • β1
    • β2
    • β3
    • γ1
    • γ2
    • γ3
    • δ
    • ε
    • π
    • θ
  • GABAA
    • ρ1
    • ρ2
    • ρ3
Glycine
  • α1
  • α2
  • α3
  • α4
  • β
Nicotinic acetylcholine
  • pentamers: (α3)2(β4)3
  • (α4)2(β2)3
  • (α7)5
  • (α1)2(β4)3 - Ganglion type
  • (α1)2β1δε - Muscle type
Zinc
Ionotropic glutamates
Ligand-gated only
Voltage- and ligand-gated
‘Orphan’
  • GluD
    • δ1
    • δ2
ATP-gated channels
Purinergic receptors
  • v
  • t
  • e
Receptor
(ligands)
P0 (adenine)
P1
(adenosine)
P2
(nucleotide)
P2X
(ATPTooltip Adenosine triphosphate)
P2Y
Transporter
(blockers)
CNTsTooltip Concentrative nucleoside transporters
ENTsTooltip Equilibrative nucleoside transporters
PMATTooltip Plasma membrane monoamine transporter
Enzyme
(inhibitors)
XOTooltip Xanthine oxidase
Others
Others
See also: Receptor/signaling modulators


Stub icon

This membrane protein–related article is a stub. You can help Wikipedia by expanding it.

  • v
  • t
  • e