Interleukin 8 receptor, beta

Mammalian protein found in Homo sapiens From Wikipedia, the free encyclopedia

Interleukin 8 receptor, beta

Interleukin 8 receptor, beta is a chemokine receptor. IL8RB is also known as CXCR2, and CXCR2 is now the IUPHAR Committee on Receptor Nomenclature and Drug classification-recommended name.[5]

Quick Facts CXCR2, Available structures ...
CXCR2
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesCXCR2, CD182, CDw128b, CMKAR2, IL8R2, IL8RA, IL8RB, Interleukin 8 receptor, beta, C-X-C motif chemokine receptor 2, WHIMS2
External IDsOMIM: 146928; MGI: 105303; HomoloGene: 10439; GeneCards: CXCR2; OMA:CXCR2 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001168298
NM_001557

NM_009909

RefSeq (protein)

NP_001161770
NP_001548

NP_034039

Location (UCSC)Chr 2: 218.13 – 218.14 MbChr 1: 74.19 – 74.2 Mb
PubMed search[3][4]
Wikidata
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Function

The protein encoded by this gene is a member of the G-protein-coupled receptor family. This protein is a receptor for interleukin 8 (IL8). It binds to IL8 with high affinity, and transduces the signal through a G-protein-activated second messenger system (Gi/o-coupled[6]). This receptor also binds to chemokine (C-X-C motif) ligand 1 (CXCL1/MGSA), a protein with melanoma growth stimulating activity, and has been shown to be a major component required for serum-dependent melanoma cell growth. In addition, it binds ligands CXCL2, CXCL3, and CXCL5.[citation needed]

The angiogenic effects of IL8 in intestinal microvascular endothelial cells are found to be mediated by this receptor. Knockout studies in mice suggested that this receptor controls the positioning of oligodendrocyte precursors in developing spinal cord by arresting their migration. IL8RB, IL8RA, which encodes another high affinity IL8 receptor, and IL8RBP, a pseudogene of IL8RB, form a gene cluster in a region mapped to chromosome 2q33-q36.[7]

Mutations in CXCR2 cause hematological traits.[8]

Senescence

Knock-down studies involving the chemokine receptor CXCR2 alleviates both replicative and oncogene-induced senescence (OIS) and diminishes the DNA-damage response. Also, ectopic expression of CXCR2 results in premature senescence via a p53-dependent mechanism.[9]

See also

References

Further reading

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