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Details on Person UniProt:P51575 P2RX1

Class:IdReferenceGeneProduct:61130
_chainChangeLogchain:1-399 added on Sat February 7 2015
_displayNameUniProt:P51575 P2RX1
_timestamp2025-02-21 20:12:39
chainchain:1-399
checksum8365466665522BF8
commentFUNCTION ATP-gated nonselective transmembrane cation channel permeable to potassium, sodium and with relatively high calcium permeability (PubMed:10440098, PubMed:15056721, PubMed:20699225, PubMed:8834001, PubMed:8961184). Furthermore, CTP functions as a weak affinity agonist for P2RX1 (PubMed:14699168). Plays a role a role in urogenital, immune and cardiovascular function (By similarity). Specifically, plays an important role in neurogenic contraction of smooth muscle of the vas deferens, and therefore is essential for normal male reproductive function (By similarity). In addition, contributes to smooth muscle contractions of the urinary bladder (By similarity). On platelets, contributes to platelet activation and aggregation and thereby, also to thrombosis (By similarity). On neutrophils, it is involved in chemotaxis and in mitigating the activation of circulating cells (PubMed:19635923).CATALYTIC ACTIVITY Ca(2+)(in) = Ca(2+)(out)CATALYTIC ACTIVITY K(+)(in) = K(+)(out)CATALYTIC ACTIVITY Na(+)(in) = Na(+)(out)ACTIVITY REGULATION Activated by low concentrations of ATP (<1 uM) (PubMed:10440098, PubMed:8834001). Undergoes rapid desensitisation (PubMed:10440098). Sensitives to the ATP agonist:alpha/beta-methylene-ATP (PubMed:19635923, PubMed:8834001). Modulated by cholesterol (PubMed:20699225).SUBUNIT Functional P2XRs are organized as homomeric and heteromeric trimers. Forms heterodimer with P2RX2. Forms heterodimer with P2RX4. Forms heterodimer with P2RX5.INTERACTION Detected at plasma membrane lipid rafts.TISSUE SPECIFICITY Expressed on neutrophils and platelets (PubMed:19635923). Expressed on urinary bladder smooth muscle (PubMed:8834001).DOMAIN The N-terminal 20 to 23 and 27 to 29 residues seem to play a role in the cholesterol-dependent gating of this receptor.SIMILARITY Belongs to the P2X receptor family.ONLINE INFORMATION P2X receptor entryONLINE INFORMATION P2RX1 entry
descriptionrecommendedName: P2X purinoceptor 1 shortName: P2X1 alternativeName: ATP receptor alternativeName: Purinergic receptor
geneNameP2RX1
P2X1
identifierP51575
isSequenceChangedFALSE
keyword3D-structure
Apoptosis
ATP-binding
Cell membrane
Disulfide bond
Glycoprotein
Ion channel
Ion transport
Ligand-gated ion channel
Membrane
Nucleotide-binding
Phosphoprotein
Proteomics identification
Receptor
Reference proteome
Transmembrane
Transmembrane helix
Transport
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9939033] Weiser, Joel, 2025-02-21
nameP2RX1
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8993210] ENSEMBL:ENSG00000108405 P2RX1 [Homo sapiens]
secondaryIdentifierP2RX1_HUMAN
Q9UK84
sequenceLength399
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:61129] P2RX1 [plasma membrane] [Homo sapiens]
[EntityWithAccessionedSequence:6803317] P2RX1 [specific granule membrane] [Homo sapiens]
[EntityWithAccessionedSequence:6803326] P2RX1 [secretory granule membrane] [Homo sapiens]
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No pathways have been reviewed or authored by UniProt:P51575 P2RX1 (61130)