NCIt definition : C-C chemokine receptor type 5 (352 aa, 41 kDa) is encoded by the human CCR5 gene.
This protein is involved in the modulation of inflammatory responses and cellular
signaling.;
NCIt note : Chemokine (C-C Motif) Receptor 5, encoded by the CCR5 gene, is a member of the beta
chemokine receptor family and a seven transmembrane protein similar to G protein-coupled
receptor. This receptor is expressed by T cells and macrophages, and is an important
co-receptor for macrophage-tropic virus, including HIV, to enter host cells. Defective
alleles of this gene is associated with the HIV infection resistance. The ligands
of this receptor include monocyte chemoattractant protein 2 (MCP-2), macrophage inflammatory
protein 1 alpha (MIP-1 alpha), macrophage inflammatory protein 1 beta (MIP-1 beta)
and regulated on activation normal T expressed and secreted protein (RANTES). Expression
of this gene is also detected in a promyeloblastic cell line, suggesting that this
protein may play a role in granulocyte lineage proliferation and differentiation.
(From LocusLink); C-C chemokine receptor type 5 acts as a coreceptor (with T-cell surface glycoprotein
CD4 as the primary receptor) for HIV.;