CCR3 (gene)

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Aliases CCR3, CC-CKR-3, CD193, CKR3, CMKBR3, C-C motif chemokine receptor 3
External IDs MGI: 104616 HomoloGene: 20436 GeneCards: CCR3
RNA expression pattern
PBB GE CCR3 208304 at fs.png
More reference expression data
Species Human Mouse
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC) Chr 3: 46.16 – 46.27 Mb Chr 9: 124.02 – 124.03 Mb
PubMed search [1] [2]
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C-C chemokine receptor type 3 is a protein that in humans is encoded by the CCR3 gene.[3]

CCR3 has also recently been designated CD193 (cluster of differentiation 193).


The protein encoded by this gene is a receptor for C-C type chemokines. It belongs to family 1 of the G protein-coupled receptors. This receptor binds and responds to a variety of chemokines, including eotaxin (CCL11), eotaxin-3 (CCL26), MCP-3 (CCL7), MCP-4 (CCL13), and RANTES (CCL5). It is highly expressed in eosinophils,[4] and is also detected in TH1 and TH2 cells, as well as in airway epithelial cells. This receptor may contribute to the accumulation and activation of eosinophils and other inflammatory cells in the allergic airway, and possibly at sites of parasitic infection. It is also known to be an entry co-receptor for HIV-1. This gene and seven other chemokine receptor genes form a chemokine receptor gene cluster on the chromosomal region 3p21. Alternatively spliced transcript variants encoding the same protein have been described.[3]

See also[edit]


CCR3 (gene) has been shown to interact with CCL5.[5][6][7]


  1. ^ "Human PubMed Reference:". 
  2. ^ "Mouse PubMed Reference:". 
  3. ^ a b "Entrez Gene: CCR3 chemokine (C-C motif) receptor 3". 
  4. ^ •Murphy KM, P Travers, M Walport (Eds.) (2010) Janeway's Immunobiology. 8th Edition. New York:Taylor & Francis, Inc.
  5. ^ Ponath PD, Qin S, Post TW, Wang J, Wu L, Gerard NP, Newman W, Gerard C, Mackay CR. "Molecular cloning and characterization of a human eotaxin receptor expressed selectively on eosinophils". J. Exp. Med. 183 (6): 2437–48. doi:10.1084/jem.183.6.2437. PMC 2192612Freely accessible. PMID 8676064. 
  6. ^ Daugherty BL, Siciliano SJ, DeMartino JA, Malkowitz L, Sirotina A, Springer MS (May 1996). "Cloning, expression, and characterization of the human eosinophil eotaxin receptor". J. Exp. Med. 183 (5): 2349–54. doi:10.1084/jem.183.5.2349. PMC 2192548Freely accessible. PMID 8642344. 
  7. ^ Struyf S, Menten P, Lenaerts JP, Put W, D'Haese A, De Clercq E, Schols D, Proost P, Van Damme J (July 2001). "Diverging binding capacities of natural LD78beta isoforms of macrophage inflammatory protein-1alpha to the CC chemokine receptors 1, 3 and 5 affect their anti-HIV-1 activity and chemotactic potencies for neutrophils and eosinophils". Eur. J. Immunol. 31 (7): 2170–8. doi:10.1002/1521-4141(200107)31:7<2170::aid-immu2170>;2-d. PMID 11449371. 

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