PMID- 20081153 OWN - NLM STAT- MEDLINE DCOM- 20101104 LR - 20211020 IS - 1535-9484 (Electronic) IS - 1535-9476 (Print) IS - 1535-9476 (Linking) VI - 9 IP - 7 DP - 2010 Jul TI - Multiple, non-conserved, internal viral ligands naturally presented by HLA-B27 in human respiratory syncytial virus-infected cells. PG - 1533-9 LID - 10.1074/mcp.M900508-MCP200 [doi] AB - Cytotoxic T lymphocyte (CTL)-mediated death of virus-infected cells requires prior recognition of short viral peptide antigens that are presented by human leukocyte antigen (HLA) class I molecules on the surface of infected cells. The CTL response is critical for the clearance of human respiratory syncytial virus (HRSV) infection. Using mass spectrometry analysis of complex HLA-bound peptide pools isolated from large amounts of HRSV-infected cells, we identified nine naturally processed HLA-B27 ligands. The isolated peptides are derived from six internal, not envelope, proteins of the infective virus. The sequences of most of these ligands are not conserved between different HRSV strains, suggesting a mechanism to explain recurrent infection with virus of different HRSV antigenic subgroups. In addition, these nine ligands represent a significant fraction of the proteome of this virus, which is monitored by the same HLA class I allele. These data have implications for vaccine development as well as for analysis of the CTL response. FAU - Infantes, Susana AU - Infantes S AD - Unidad de Protemica, Centro Nacional de Microbiologia, Instituto de Salud Carlos III, 28220 Majadahonda, Madrid, Spain. FAU - Lorente, Elena AU - Lorente E FAU - Barnea, Eilon AU - Barnea E FAU - Beer, Ilan AU - Beer I FAU - Cragnolini, Juan Jose AU - Cragnolini JJ FAU - Garcia, Ruth AU - Garcia R FAU - Lasala, Fatima AU - Lasala F FAU - Jimenez, Mercedes AU - Jimenez M FAU - Admon, Arie AU - Admon A FAU - Lopez, Daniel AU - Lopez D LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100115 PL - United States TA - Mol Cell Proteomics JT - Molecular & cellular proteomics : MCP JID - 101125647 RN - 0 (Antigens, Viral) RN - 0 (Histocompatibility Antigens Class I) RN - 0 (Ligands) RN - 0 (Peptides) SB - IM MH - Amino Acid Sequence MH - Animals MH - Antigen Presentation/*immunology MH - Antigens, Viral/chemistry/genetics/*immunology MH - Histocompatibility Antigens Class I/genetics/immunology MH - Humans MH - *Ligands MH - Molecular Sequence Data MH - Peptides/chemistry/genetics/immunology MH - Respiratory Syncytial Virus Infections/*immunology MH - Respiratory Syncytial Virus, Human/*immunology MH - Spectrometry, Mass, Electrospray Ionization/methods MH - T-Lymphocytes, Cytotoxic/immunology PMC - PMC2938088 EDAT- 2010/01/19 06:00 MHDA- 2010/11/05 06:00 PMCR- 2011/07/01 CRDT- 2010/01/19 06:00 PHST- 2010/01/19 06:00 [entrez] PHST- 2010/01/19 06:00 [pubmed] PHST- 2010/11/05 06:00 [medline] PHST- 2011/07/01 00:00 [pmc-release] AID - S1535-9476(20)30944-0 [pii] AID - M900508-MCP200 [pii] AID - 10.1074/mcp.M900508-MCP200 [doi] PST - ppublish SO - Mol Cell Proteomics. 2010 Jul;9(7):1533-9. doi: 10.1074/mcp.M900508-MCP200. Epub 2010 Jan 15.