CXCR2 Antibody – Rabbit Polyclonal

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. 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. This receptor mediates neutrophil migration to sites of inflammation. 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. This gene, IL8RA, a gene encoding another high affinity IL8 receptor, as well as IL8RBP, a pseudogene of IL8RB, form a gene cluster in a region mapped to chromosome 2q33-q36. Alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Nov 2009]

IL8RB: Receptor for interleukin-8 which is a powerful neutrophil chemotactic factor. Binding of IL-8 to the receptor causes activation of neutrophils. This response is mediated via a G-protein that activates a phosphatidylinositol-calcium second messenger system. Binds to IL-8 with high affinity. Also binds with high affinity to CXCL3, GRO/MGSA and NAP-2. Belongs to the G-protein coupled receptor 1 family.

Protein type: Membrane protein, multi-pass; Receptor, GPCR; Receptor, cytokine; Membrane protein, integral; GPCR, family 1

Chromosomal Location of Human Ortholog: 2q35

Cellular Component: cell surface; integral to plasma membrane; intracellular; mast cell granule; membrane; plasma membrane

Molecular Function: C-X-C chemokine receptor activity; interleukin-8 binding; interleukin-8 receptor activity; protein binding; signal transducer activity

Biological Process: cell surface receptor linked signal transduction; cellular defense response; chemotaxis; dendritic cell chemotaxis; G-protein signaling, coupled to IP3 second messenger (phospholipase C activating); inflammatory response; neutrophil activation; neutrophil chemotaxis; positive regulation of cell proliferation; receptor internalization; signal transduction