CD94 (Cluster of Differentiation 94), also known as killer cell lectin-like receptor subfamily D, member 1 (KLRD1) is a human gene.[1]
The protein encoded by CD94 gene is a lectin, cluster of differentiation and a receptor that is involved in cell signaling and is expressed on the surface of natural killer cells in the innate immune system. CD94 pairs with the NKG2 molecule as a heterodimer. The CD94/NKG2 complex, on the surface of natural killer cells interacts with Human Leukocyte Antigen (HLA)-E on target cells.
Natural killer (NK) cells are a distinct lineage of lymphocytes that mediate cytotoxic activity and secrete cytokines upon immune stimulation. Several genes of the C-type lectin superfamily, including members of the NKG2 family, are expressed by NK cells and may be involved in the regulation of NK cell function. KLRD1 (CD94) is an antigen preferentially expressed on NK cells and is classified as a type II membrane protein because it has an external C terminus. KLRD1 has two alternatively spliced variants that differ in the presence or absence of exon 2 sequence.[1]
↑Lazetic S, Chang C, Houchins JP, Lanier LL, Phillips JH (Dec 1996). "Human natural killer cell receptors involved in MHC class I recognition are disulfide-linked heterodimers of CD94 and NKG2 subunits". Journal of Immunology. 157 (11): 4741–5. PMID8943374.
↑Ding Y, Sumitran S, Holgersson J (May 1999). "Direct binding of purified HLA class I antigens by soluble NKG2/CD94 C-type lectins from natural killer cells". Scandinavian Journal of Immunology. 49 (5): 459–65. doi:10.1046/j.1365-3083.1999.00566.x. PMID10320637.
Further reading
Chang C, Rodríguez A, Carretero M, López-Botet M, Phillips JH, Lanier LL (Sep 1995). "Molecular characterization of human CD94: a type II membrane glycoprotein related to the C-type lectin superfamily". European Journal of Immunology. 25 (9): 2433–7. doi:10.1002/eji.1830250904. PMID7589107.
Phillips JH, Chang C, Mattson J, Gumperz JE, Parham P, Lanier LL (Aug 1996). "CD94 and a novel associated protein (94AP) form a NK cell receptor involved in the recognition of HLA-A, HLA-B, and HLA-C allotypes". Immunity. 5 (2): 163–72. doi:10.1016/S1074-7613(00)80492-6. PMID8769479.
Lazetic S, Chang C, Houchins JP, Lanier LL, Phillips JH (Dec 1996). "Human natural killer cell receptors involved in MHC class I recognition are disulfide-linked heterodimers of CD94 and NKG2 subunits". Journal of Immunology. 157 (11): 4741–5. PMID8943374.
Rodríguez A, Carretero M, Glienke J, Bellón T, Ramírez A, Lehrach H, Francis F, López-Botet M (Mar 1998). "Structure of the human CD94 C-type lectin gene". Immunogenetics. 47 (4): 305–9. doi:10.1007/s002510050362. PMID9472066.
Le Dréan E, Vély F, Olcese L, Cambiaggi A, Guia S, Krystal G, Gervois N, Moretta A, Jotereau F, Vivier E (Jan 1998). "Inhibition of antigen-induced T cell response and antibody-induced NK cell cytotoxicity by NKG2A: association of NKG2A with SHP-1 and SHP-2 protein-tyrosine phosphatases". European Journal of Immunology. 28 (1): 264–76. doi:10.1002/(SICI)1521-4141(199801)28:01<264::AID-IMMU264>3.0.CO;2-O. PMID9485206.
Braud VM, Allan DS, O'Callaghan CA, Söderström K, D'Andrea A, Ogg GS, Lazetic S, Young NT, Bell JI, Phillips JH, Lanier LL, McMichael AJ (Feb 1998). "HLA-E binds to natural killer cell receptors CD94/NKG2A, B and C". Nature. 391 (6669): 795–9. doi:10.1038/35869. PMID9486650.
Plougastel B, Trowsdale J (Apr 1998). "Sequence analysis of a 62-kb region overlapping the human KLRC cluster of genes". Genomics. 49 (2): 193–9. doi:10.1006/geno.1997.5197. PMID9598306.
Furukawa H, Yabe T, Watanabe K, Miyamoto R, Akaza T, Tadokoro K, Tohma S, Inoue T, Yamamoto K, Juji T (Jun 1998). "An alternatively spliced form of the human CD94 gene". Immunogenetics. 48 (1): 87–8. doi:10.1007/s002510050407. PMID9601951.
Lanier LL, Corliss B, Wu J, Phillips JH (Jun 1998). "Association of DAP12 with activating CD94/NKG2C NK cell receptors". Immunity. 8 (6): 693–701. doi:10.1016/S1074-7613(00)80574-9. PMID9655483.
Brooks AG, Borrego F, Posch PE, Patamawenu A, Scorzelli CJ, Ulbrecht M, Weiss EH, Coligan JE (Jan 1999). "Specific recognition of HLA-E, but not classical, HLA class I molecules by soluble CD94/NKG2A and NK cells". Journal of Immunology. 162 (1): 305–13. PMID9886400.
Boyington JC, Riaz AN, Patamawenu A, Coligan JE, Brooks AG, Sun PD (Jan 1999). "Structure of CD94 reveals a novel C-type lectin fold: implications for the NK cell-associated CD94/NKG2 receptors". Immunity. 10 (1): 75–82. doi:10.1016/S1074-7613(00)80008-4. PMID10023772.
Bellón T, Heredia AB, Llano M, Minguela A, Rodriguez A, López-Botet M, Aparicio P (Apr 1999). "Triggering of effector functions on a CD8+ T cell clone upon the aggregation of an activatory CD94/kp39 heterodimer". Journal of Immunology. 162 (7): 3996–4002. PMID10201920.
Ding Y, Sumitran S, Holgersson J (May 1999). "Direct binding of purified HLA class I antigens by soluble NKG2/CD94 C-type lectins from natural killer cells". Scandinavian Journal of Immunology. 49 (5): 459–65. doi:10.1046/j.1365-3083.1999.00566.x. PMID10320637.
Romero P, Ortega C, Palma A, Molina IJ, Peña J, Santamaría M (Aug 2001). "Expression of CD94 and NKG2 molecules on human CD4(+) T cells in response to CD3-mediated stimulation". Journal of Leukocyte Biology. 70 (2): 219–24. PMID11493613.
Shum BP, Flodin LR, Muir DG, Rajalingam R, Khakoo SI, Cleland S, Guethlein LA, Uhrberg M, Parham P (Jan 2002). "Conservation and variation in human and common chimpanzee CD94 and NKG2 genes". Journal of Immunology. 168 (1): 240–52. doi:10.4049/jimmunol.168.1.240. PMID11751968.
Terrazzano G, Zanzi D, Palomba C, Carbone E, Grimaldi S, Pisanti S, Fontana S, Zappacosta S, Ruggiero G (Aug 2002). "Differential involvement of CD40, CD80, and major histocompatibility complex class I molecules in cytotoxicity induction and interferon-gamma production by human natural killer effectors". Journal of Leukocyte Biology. 72 (2): 305–11. PMID12149421.