CX3CR1

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Identifiers
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External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
Entrez

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CX3C chemokine receptor 1 (CX3CR1) also known as the fractalkine receptor or G-protein coupled receptor 13 (GPR13) is a protein that in humans is encoded by the CX3CR1 gene.[1][2] As the name suggests, this receptor binds the chemokine CX3CL1 (also called neurotactin or fractalkine).

Function

The fractalkine ligand CX3CL1 is a transmembrane protein and chemokine involved in the adhesion and migration of leukocytes. The protein encoded by the CX3CR1 gene is a receptor for the fractalkine ligand.[3]

Expression of this receptor appears to be associated with lymphocytes.[4] CX3CR1 is also expressed by monocytes and plays a major role in the survival of monocytes.[5]

Fractalkine signaling has also recently been discovered to play a developmental role in the migration of microglia in the central nervous system to their synaptic targets, where phagocytosis and synaptic refinement occur. CX3CR1 knockout mice had more synapses on cortical neurons than wild-type mice.[citation needed]

Clinical significance

CX3CR1 also is a coreceptor for HIV-1, and some variations in this gene lead to increased susceptibility to HIV-1 infection and rapid progression to AIDS.[3]

CX3CR1 variants have been described to modify the survival time and the progression rate of patients with amyotrophic lateral sclerosis.[6]

Mutations in CX3CR1 are associated to dysplasia of the hip .[7]

References

  1. ↑ Combadiere C, Ahuja SK, Murphy PM (Aug 1995). "Cloning, chromosomal localization, and RNA expression of a human beta chemokine receptor-like gene". DNA and Cell Biology. 14 (8): 673–80. doi:10.1089/dna.1995.14.673. PMID 7646814.
  2. ↑ Combadiere C, Salzwedel K, Smith ED, Tiffany HL, Berger EA, Murphy PM (Sep 1998). "Identification of CX3CR1. A chemotactic receptor for the human CX3C chemokine fractalkine and a fusion coreceptor for HIV-1". The Journal of Biological Chemistry. 273 (37): 23799–804. doi:10.1074/jbc.273.37.23799. PMID 9726990.
  3. ↑ 3.0 3.1 "Entrez Gene: chemokine (C-X3-C motif) receptor 1".
  4. ↑ Imai T, Hieshima K, Haskell C, Baba M, Nagira M, Nishimura M, Kakizaki M, Takagi S, Nomiyama H, Schall TJ, Yoshie O (Nov 1997). "Identification and molecular characterization of fractalkine receptor CX3CR1, which mediates both leukocyte migration and adhesion". Cell. 91 (4): 521–30. doi:10.1016/S0092-8674(00)80438-9. PMID 9390561.
  5. ↑ Landsman, L; Bar-On, L; Zernecke, A; Kim, KW; Krauthgamer, R; Shagdarsuren, E; Lira, SA; Weissman, IL; Weber, C; Jung, S (22 January 2009). "CX3CR1 is required for monocyte homeostasis and atherogenesis by promoting cell survival". Blood. 113 (4): 963–72. doi:10.1182/blood-2008-07-170787. PMID 18971423.
  6. ↑ Lopez-Lopez, Alan; Gamez, Josep; Syriani, Emilio; Morales, Miguel; Salvado, Maria; Rodríguez, Manuel J.; Mahy, Nicole; Vidal-Taboada, Jose M. (7 May 2014). "CX3CR1 Is a Modifying Gene of Survival and Progression in Amyotrophic Lateral Sclerosis". PLOS ONE. 9: e96528. doi:10.1371/journal.pone.0096528. PMC 4013026. PMID 24806473.
  7. ↑ Feldman GJ, Parvizi J, Sawan H, Erickson JA, Peters CL (Sep 2014). "Linkage mapping and whole exome sequencing identify a shared variant in CX3CR1 in a large multi-generation family". The Journal of Arthroplasty. 29 (9 Suppl): 238–41. doi:10.1016/j.arth.2014.05.014. PMID 24998320.

Further reading

  • Robertson MJ (Feb 2002). "Role of chemokines in the biology of natural killer cells". Journal of Leukocyte Biology. 71 (2): 173–83. PMID 11818437.
  • Raport CJ, Schweickart VL, Eddy RL, Shows TB, Gray PW (Oct 1995). "The orphan G-protein-coupled receptor-encoding gene V28 is closely related to genes for chemokine receptors and is expressed in lymphoid and neural tissues". Gene. 163 (2): 295–9. doi:10.1016/0378-1119(95)00336-5. PMID 7590284.
  • Maruyama K, Sugano S (Jan 1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.
  • Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, Suyama A, Sugano S (Oct 1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149.
  • Mizoue LS, Bazan JF, Johnson EC, Handel TM (Feb 1999). "Solution structure and dynamics of the CX3C chemokine domain of fractalkine and its interaction with an N-terminal fragment of CX3CR1". Biochemistry. 38 (5): 1402–14. doi:10.1021/bi9820614. PMID 9931005.
  • Maho A, Bensimon A, Vassart G, Parmentier M (2000). "Mapping of the CCXCR1, CX3CR1, CCBP2 and CCR9 genes to the CCR cluster within the 3p21.3 region of the human genome". Cytogenetics and Cell Genetics. 87 (3–4): 265–8. doi:10.1159/000015443. PMID 10702689.
  • Faure S, Meyer L, Costagliola D, Vaneensberghe C, Genin E, Autran B, Delfraissy JF, McDermott DH, Murphy PM, Debré P, Théodorou I, Combadière C (Mar 2000). "Rapid progression to AIDS in HIV+ individuals with a structural variant of the chemokine receptor CX3CR1". Science. 287 (5461): 2274–7. doi:10.1126/science.287.5461.2274. PMID 10731151.
  • Yoneda O, Imai T, Goda S, Inoue H, Yamauchi A, Okazaki T, Imai H, Yoshie O, Bloom ET, Domae N, Umehara H (Apr 2000). "Fractalkine-mediated endothelial cell injury by NK cells". Journal of Immunology. 164 (8): 4055–62. doi:10.4049/jimmunol.164.8.4055. PMID 10754298.
  • Meucci O, Fatatis A, Simen AA, Miller RJ (Jul 2000). "Expression of CX3CR1 chemokine receptors on neurons and their role in neuronal survival". Proceedings of the National Academy of Sciences of the United States of America. 97 (14): 8075–80. doi:10.1073/pnas.090017497. PMC 16672. PMID 10869418.
  • Papadopoulos EJ, Fitzhugh DJ, Tkaczyk C, Gilfillan AM, Sassetti C, Metcalfe DD, Hwang ST (Aug 2000). "Mast cells migrate, but do not degranulate, in response to fractalkine, a membrane-bound chemokine expressed constitutively in diverse cells of the skin". European Journal of Immunology. 30 (8): 2355–61. doi:10.1002/1521-4141(2000)30:8<2355::AID-IMMU2355>3.0.CO;2-#. PMID 10940926.
  • Moatti D, Faure S, Fumeron F, El Walid Amara M, Seknadji P, McDermott DH, Debré P, Aumont MC, Murphy PM, de Prost D, Combadière C (Apr 2001). "Polymorphism in the fractalkine receptor CX3CR1 as a genetic risk factor for coronary artery disease". Blood. 97 (7): 1925–8. doi:10.1182/blood.V97.7.1925. PMID 11264153.
  • Foussat A, Bouchet-Delbos L, Berrebi D, Durand-Gasselin I, Coulomb-L'Hermine A, Krzysiek R, Galanaud P, Levy Y, Emilie D (Sep 2001). "Deregulation of the expression of the fractalkine/fractalkine receptor complex in HIV-1-infected patients". Blood. 98 (6): 1678–86. doi:10.1182/blood.V98.6.1678. PMID 11535497.
  • Dichmann S, Herouy Y, Purlis D, Rheinen H, Gebicke-Härter P, Norgauer J (Nov 2001). "Fractalkine induces chemotaxis and actin polymerization in human dendritic cells". Inflammation Research. 50 (11): 529–33. doi:10.1007/PL00000230. PMID 11766992.
  • Brand S, Sakaguchi T, Gu X, Colgan SP, Reinecker HC (Jan 2002). "Fractalkine-mediated signals regulate cell-survival and immune-modulatory responses in intestinal epithelial cells". Gastroenterology. 122 (1): 166–77. doi:10.1053/gast.2002.30329. PMID 11781291.
  • Utaipat U, Duerr A, Rudolph DL, Yang C, Butera ST, Lupo D, Pisell T, Tangmunkongvorakul A, Kamtorn N, Nantachit N, Nagachinta T, Suriyanon V, Robison V, Nelson KE, Sittisombut N, Lal RB (Jan 2002). "Coreceptor utilization of HIV type 1 subtype E viral isolates from Thai men with HIV type 1-infected and uninfected wives". AIDS Research and Human Retroviruses. 18 (1): 1–11. doi:10.1089/088922202753394664. PMID 11804551.
  • Fong AM, Alam SM, Imai T, Haribabu B, Patel DD (May 2002). "CX3CR1 tyrosine sulfation enhances fractalkine-induced cell adhesion". The Journal of Biological Chemistry. 277 (22): 19418–23. doi:10.1074/jbc.M201396200. PMID 11909868.

External links

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

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