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Surface expression of HLA-E, an inhibitor of natural killer cells, enhanced by human cytomegalovirus gpUL40

Tomasec, Peter, Braud, Veronique M., Rickards, Carole, Powell, Martin B., McSharry, Brain P., Gadola, Stephan, Cerundolo, Vincenzo, Borysiewicz, Leszek K., McMichael, Andrew J. and Wilkinson, Gavin W.G. (2000) Surface expression of HLA-E, an inhibitor of natural killer cells, enhanced by human cytomegalovirus gpUL40 Science, 287, (5455), pp. 1031-1033. (doi:10.1126/science.287.5455.1031). (PMID:10669413).

Record type: Article


The nonclassical major histocompatibility complex (MHC) class I molecule HLA-E inhibits natural killer (NK) cell–mediated lysis by interacting with CD94/NKG2A receptors. Surface expression of HLA-E depends on binding of conserved peptides derived from MHC class I molecules. The same peptide is present in the leader sequence of the human cytomegalovirus (HCMV) glycoprotein UL40 (gpUL40). It is shown that, independently of the transporter associated with antigen processing, gpUL40 can up-regulate expression of HLA-E, which protects targets from NK cell lysis. While classical MHC class I molecules are down-regulated, HLA-E is up-regulated by HCMV. Induction of HLA-E surface expression by gpUL40 may represent an escape route for HCMV.

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Published date: 11 February 2000


Local EPrints ID: 175471
ISSN: 0036-8075
PURE UUID: 4c4b9faf-6f2f-4346-b8a0-c0ef9493572e

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Date deposited: 23 Feb 2011 15:31
Last modified: 18 Jul 2017 12:09

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Author: Peter Tomasec
Author: Veronique M. Braud
Author: Carole Rickards
Author: Martin B. Powell
Author: Brain P. McSharry
Author: Stephan Gadola
Author: Vincenzo Cerundolo
Author: Leszek K. Borysiewicz
Author: Andrew J. McMichael
Author: Gavin W.G. Wilkinson

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