PMID- 23335510 OWN - NLM STAT- MEDLINE DCOM- 20130515 LR - 20231213 IS - 1083-351X (Electronic) IS - 0021-9258 (Print) IS - 0021-9258 (Linking) VI - 288 IP - 12 DP - 2013 Mar 22 TI - Polymorphism in human cytomegalovirus UL40 impacts on recognition of human leukocyte antigen-E (HLA-E) by natural killer cells. PG - 8679-8690 LID - S0021-9258(19)33517-3 [pii] LID - 10.1074/jbc.M112.409672 [doi] AB - Natural killer (NK) cell recognition of the nonclassical human leukocyte antigen (HLA) molecule HLA-E is dependent on the presentation of a nonamer peptide derived from the leader sequence of other HLA molecules to CD94-NKG2 receptors. However, human cytomegalovirus can manipulate this central innate interaction through the provision of a "mimic" of the HLA-encoded peptide derived from the immunomodulatory glycoprotein UL40. Here, we analyzed UL40 sequences isolated from 32 hematopoietic stem cell transplantation recipients experiencing cytomegalovirus reactivation. The UL40 protein showed a "polymorphic hot spot" within the region that encodes the HLA leader sequence mimic. Although all sequences that were identical to those encoded within HLA-I genes permitted the interaction between HLA-E and CD94-NKG2 receptors, other UL40 polymorphisms reduced the affinity of the interaction between HLA-E and CD94-NKG2 receptors. Furthermore, functional studies using NK cell clones expressing either the inhibitory receptor CD94-NKG2A or the activating receptor CD94-NKG2C identified UL40-encoded peptides that were capable of inhibiting target cell lysis via interaction with CD94-NKG2A, yet had little capacity to activate NK cells through CD94-NKG2C. The data suggest that UL40 polymorphisms may aid evasion of NK cell immunosurveillance by modulating the affinity of the interaction with CD94-NKG2 receptors. FAU - Heatley, Susan L AU - Heatley SL AD - Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria 3010, Australia. FAU - Pietra, Gabriella AU - Pietra G AD - Department of Experimental Medicine, University of Genova, Genova 16132, Italy. FAU - Lin, Jie AU - Lin J AD - Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria 3010, Australia. FAU - Widjaja, Jacqueline M L AU - Widjaja JML AD - Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria 3010, Australia. FAU - Harpur, Christopher M AU - Harpur CM AD - Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria 3010, Australia. FAU - Lester, Sue AU - Lester S AD - Department of Rheumatology, The Queen Elizabeth Hospital, South Australia 5011, Australia. FAU - Rossjohn, Jamie AU - Rossjohn J AD - Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria 3800, Australia. FAU - Szer, Jeff AU - Szer J AD - Department of Clinical Haematology and Bone Marrow Transplant Service, Royal Melbourne Hospital, Victoria 3050, Australia. FAU - Schwarer, Anthony AU - Schwarer A AD - Malignant Haematology and Stem Cell Transplantation Service, The Alfred Hospital, Victoria 3004, Australia. FAU - Bradstock, Kenneth AU - Bradstock K AD - Department of Haematology, Westmead Hospital, New South Wales 2145, Australia. FAU - Bardy, Peter G AU - Bardy PG AD - Director of Cancer Services, Royal Adelaide Hospital, South Australia 5000, Australia. FAU - Mingari, Maria Cristina AU - Mingari MC AD - Department of Experimental Medicine, University of Genova, Genova 16132, Italy; IRCCS AOU San Martino-IST, Genova 16132, Italy. FAU - Moretta, Lorenzo AU - Moretta L AD - Istituto Giannina Gaslini, Genova 16147, Italy. FAU - Sullivan, Lucy C AU - Sullivan LC AD - Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria 3010, Australia. FAU - Brooks, Andrew G AU - Brooks AG AD - Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria 3010, Australia. Electronic address: agbrooks@unimelb.edu.au. LA - eng SI - GENBANK/JQ060965 SI - GENBANK/JQ060966 SI - GENBANK/JQ060967 SI - GENBANK/JQ060968 SI - GENBANK/JQ060969 SI - GENBANK/JQ060970 SI - GENBANK/JQ060971 SI - GENBANK/JQ060972 SI - GENBANK/JQ060973 SI - GENBANK/JQ060974 SI - GENBANK/JQ060975 SI - GENBANK/JQ060976 SI - GENBANK/JQ060977 SI - GENBANK/JQ060978 SI - GENBANK/JQ060979 SI - GENBANK/JQ060980 SI - GENBANK/JQ060981 SI - GENBANK/JQ060982 SI - GENBANK/JQ060983 SI - GENBANK/JQ060984 SI - GENBANK/JQ060985 SI - GENBANK/JQ060986 SI - GENBANK/JQ060987 SI - GENBANK/JQ060988 SI - GENBANK/JQ060989 SI - GENBANK/JQ060990 SI - GENBANK/JQ060991 SI - GENBANK/JQ060992 SI - GENBANK/JQ060993 SI - GENBANK/JQ060994 SI - GENBANK/JQ060995 SI - GENBANK/JQ060996 PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130118 PL - United States TA - J Biol Chem JT - The Journal of biological chemistry JID - 2985121R RN - 0 (Histocompatibility Antigens Class I) RN - 0 (KLRD1 protein, human) RN - 0 (NK Cell Lectin-Like Receptor Subfamily C) RN - 0 (NK Cell Lectin-Like Receptor Subfamily D) RN - 0 (UL40 glycoprotein, Cytomegalovirus) RN - 0 (Viral Proteins) SB - IM MH - Adult MH - Amino Acid Sequence MH - Binding Sites MH - Cells, Cultured MH - Cytomegalovirus/*genetics/immunology MH - Cytotoxicity, Immunologic MH - Female MH - Hematopoietic Stem Cell Transplantation MH - Histocompatibility Antigens Class I/chemistry/*metabolism/physiology MH - Humans MH - Killer Cells, Natural/*immunology/metabolism MH - Leukemia, Myeloid, Acute/therapy MH - Lymphoma, Non-Hodgkin/therapy MH - Male MH - Middle Aged MH - Molecular Sequence Data MH - NK Cell Lectin-Like Receptor Subfamily C/metabolism MH - NK Cell Lectin-Like Receptor Subfamily D/metabolism MH - Phylogeny MH - *Polymorphism, Genetic MH - Protein Binding MH - Sequence Analysis, DNA MH - Viral Proteins/chemistry/*genetics/immunology MH - Young Adult MH - HLA-E Antigens PMC - PMC3605686 EDAT- 2013/01/22 06:00 MHDA- 2013/05/17 06:00 PMCR- 2014/03/22 CRDT- 2013/01/22 06:00 PHST- 2013/01/22 06:00 [entrez] PHST- 2013/01/22 06:00 [pubmed] PHST- 2013/05/17 06:00 [medline] PHST- 2014/03/22 00:00 [pmc-release] AID - S0021-9258(19)33517-3 [pii] AID - M112.409672 [pii] AID - 10.1074/jbc.M112.409672 [doi] PST - ppublish SO - J Biol Chem. 2013 Mar 22;288(12):8679-8690. doi: 10.1074/jbc.M112.409672. Epub 2013 Jan 18.