KLRC2

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NKG2-C type II integral membrane protein is a protein that in humans is encoded by the KLRC2 gene.^[1]^[2]

Function

Natural killer (NK) cells are lymphocytes that can mediate lysis of certain tumor cells and virus-infected cells without previous activation. They can also regulate specific humoral and cell-mediated immunity. NK cells preferentially express several calcium-dependent (C-type) lectins, which have been implicated in the regulation of NK cell function. The group, designated KLRC (NKG2) are expressed primarily in natural killer (NK) cells and encodes a family of transmembrane proteins characterized by a type II membrane orientation (extracellular C terminus) and the presence of a C-type lectin domain. The KLRC (NKG2) gene family is located within the NK complex, a region that contains several C-type lectin genes preferentially expressed on NK cells. KLRC2 alternative splice variants have been described but their full-length nature has not been determined.^[2]

Interactions

KLRC2 has been shown to interact with KLRD1.^[3]^[4] The binding of this CD94/NKG2C heterodimer to its cellular ligand HLA-E has been shown to drive the expansion of a subset of Natural Killer (NK) cells in response to viral infections.^[5]

References

↑ 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. PMID 9598306.
↑ ^2.0 ^2.1 "Entrez Gene: KLRC2 killer cell lectin-like receptor subfamily C, member 2".
↑ 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. PMID 8943374.
↑ 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. PMID 10320637.
↑ Rölle A, Pollmann J, Ewen EM, Le VT, Halenius A, Hengel H, Cerwenka A (Dec 2014). "IL-12-producing monocytes and HLA-E control HCMV-driven NKG2C+ NK cell expansion". The Journal of Clinical Investigation. 124 (12): 5305–16. doi:10.1172/JCI77440. PMC 4348979. PMID 25384219.

Houchins JP, Yabe T, McSherry C, Bach FH (Apr 1991). "DNA sequence analysis of NKG2, a family of related cDNA clones encoding type II integral membrane proteins on human natural killer cells". The Journal of Experimental Medicine. 173 (4): 1017–20. doi:10.1084/jem.173.4.1017. PMC 2190798. PMID 2007850.
Yabe T, McSherry C, Bach FH, Fisch P, Schall RP, Sondel PM, Houchins JP (1993). "A multigene family on human chromosome 12 encodes natural killer-cell lectins". Immunogenetics. 37 (6): 455–60. doi:10.1007/BF00222470. PMID 8436421.
Houchins JP, Lanier LL, Niemi EC, Phillips JH, Ryan JC (Apr 1997). "Natural killer cell cytolytic activity is inhibited by NKG2-A and activated by NKG2-C". Journal of Immunology. 158 (8): 3603–9. PMID 9103421.
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. PMID 9486650.
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. PMID 9655483.
Glienke J, Sobanov Y, Brostjan C, Steffens C, Nguyen C, Lehrach H, Hofer E, Francis F (Aug 1998). "The genomic organization of NKG2C, E, F, and D receptor genes in the human natural killer gene complex". Immunogenetics. 48 (3): 163–73. doi:10.1007/s002510050420. PMID 9683661.
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. PMID 10320637.
Khakoo SI, Rajalingam R, Shum BP, Weidenbach K, Flodin L, Muir DG, Canavez F, Cooper SL, Valiante NM, Lanier LL, Parham P (Jun 2000). "Rapid evolution of NK cell receptor systems demonstrated by comparison of chimpanzees and humans". Immunity. 12 (6): 687–98. doi:10.1016/S1074-7613(00)80219-8. PMID 10894168.
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. PMID 11751968.
Hikami K, Tsuchiya N, Yabe T, Tokunaga K (Mar 2003). "Variations of human killer cell lectin-like receptors: common occurrence of NKG2-C deletion in the general population". Genes and Immunity. 4 (2): 160–7. doi:10.1038/sj.gene.6363940. PMID 12618865.
Miyashita R, Tsuchiya N, Hikami K, Kuroki K, Fukazawa T, Bijl M, Kallenberg CG, Hashimoto H, Yabe T, Tokunaga K (Jan 2004). "Molecular genetic analyses of human NKG2C (KLRC2) gene deletion". International Immunology. 16 (1): 163–8. doi:10.1093/intimm/dxh013. PMID 14688071.
Ortega C, Romero P, Palma A, Orta T, Peña J, García-Vinuesa A, Molina IJ, Santamaría M (Dec 2004). "Role for NKG2-A and NKG2-C surface receptors in chronic CD4+ T-cell responses". Immunology and Cell Biology. 82 (6): 587–95. doi:10.1111/j.0818-9641.2004.01284.x. PMID 15550116.
Gumá M, Busch LK, Salazar-Fontana LI, Bellosillo B, Morte C, García P, López-Botet M (Jul 2005). "The CD94/NKG2C killer lectin-like receptor constitutes an alternative activation pathway for a subset of CD8+ T cells". European Journal of Immunology. 35 (7): 2071–80. doi:10.1002/eji.200425843. PMID 15940674.

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

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[pmid9598306-1] 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. PMID 9598306.

[entrez-2] 2.0 ^2.1 "Entrez Gene: KLRC2 killer cell lectin-like receptor subfamily C, member 2".

[pmid8943374-3] 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. PMID 8943374.

[pmid10320637-4] 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. PMID 10320637.

[5] Rölle A, Pollmann J, Ewen EM, Le VT, Halenius A, Hengel H, Cerwenka A (Dec 2014). "IL-12-producing monocytes and HLA-E control HCMV-driven NKG2C+ NK cell expansion". The Journal of Clinical Investigation. 124 (12): 5305–16. doi:10.1172/JCI77440. PMC 4348979. PMID 25384219.

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v t e Proteins: clusters of differentiation (see also list of human clusters of differentiation)
1-50	CD1 a-c 1A 1D 1E CD2 CD3 γ δ ε CD4 CD5 CD6 CD7 CD8 a CD9 CD10 CD11 a b c d CD13 CD14 CD15 CD16 A B CD18 CD19 CD20 CD21 CD22 CD23 CD24 CD25 CD26 CD27 CD28 CD29 CD30 CD31 CD32 A B CD33 CD34 CD35 CD36 CD37 CD38 CD39 CD40 CD41 CD42 a b c d CD43 CD44 CD45 CD46 CD47 CD48 CD49 a b c d e f CD50
51-100	CD51 CD52 CD53 CD54 CD55 CD56 CD57 CD58 CD59 CD61 CD62 E L P CD63 CD64 A B C CD66 a b c d e f CD68 CD69 CD70 CD71 CD72 CD73 CD74 CD78 CD79 a b CD80 CD81 CD82 CD83 CD84 CD85 a d e h j k CD86 CD87 CD88 CD89 CD90 CD91 - CD92 CD93 CD94 CD95 CD96 CD97 CD98 CD99 CD100
101-150	CD101 CD102 CD103 CD104 CD105 CD106 CD107 a b CD108 CD109 CD110 CD111 CD112 CD113 CD114 CD115 CD116 CD117 CD118 CD119 CD120 a b CD121 a b CD122 CD123 CD124 CD125 CD126 CD127 CD129 CD130 CD131 CD132 CD133 CD134 CD135 CD136 CD137 CD138 CD140b CD141 CD142 CD143 CD144 CD146 CD147 CD148 CD150
151-200	CD151 CD152 CD153 CD154 CD155 CD156 a b c CD157 CD158 (a d e i k) CD159 a c CD160 CD161 CD162 CD163 CD164 CD166 CD167 a b CD168 CD169 CD170 CD171 CD172 a b g CD174 CD177 CD178 CD179 a b CD180 CD181 CD182 CD183 CD184 CD185 CD186 CD191 CD192 CD193 CD194 CD195 CD196 CD197 CDw198 CDw199 CD200
201-250	CD201 CD202b CD204 CD205 CD206 CD207 CD208 CD209 CDw210 a b CD212 CD213a 1 2 CD217 CD218 (a b) CD220 CD221 CD222 CD223 CD224 CD225 CD226 CD227 CD228 CD229 CD230 CD233 CD234 CD235 a b CD236 CD238 CD239 CD240CE CD240D CD241 CD243 CD244 CD246 CD247 - CD248 CD249
251-300	CD252 CD253 CD254 CD256 CD257 CD258 CD261 CD262 CD263 CD264 CD265 CD266 CD267 CD268 CD269 CD271 CD272 CD273 CD274 CD275 CD276 CD278 CD279 CD280 CD281 CD282 CD283 CD284 CD286 CD288 CD289 CD290 CD292 CDw293 CD294 CD295 CD297 CD298 CD299
301-350	CD300A CD301 CD302 CD303 CD304 CD305 CD306 CD307 CD309 CD312 CD314 CD315 CD316 CD317 CD318 CD320 CD321 CD322 CD324 CD325 CD326 CD328 CD329 CD331 CD332 CD333 CD334 CD335 CD336 CD337 CD338 CD339 CD340 CD344 CD349 CD350

KLRC2

Contents

Function

Interactions

See also

References

Further reading

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