PMID- 23481700 OWN - NLM STAT- MEDLINE DCOM- 20140128 LR - 20211021 IS - 1535-9484 (Electronic) IS - 1535-9476 (Print) IS - 1535-9476 (Linking) VI - 12 IP - 7 DP - 2013 Jul TI - The human leukocyte antigen-presented ligandome of B lymphocytes. PG - 1829-43 LID - 10.1074/mcp.M112.024810 [doi] AB - Peptides presented by human leukocyte antigen (HLA) molecules on the cell surface play a crucial role in adaptive immunology, mediating the communication between T cells and antigen presenting cells. Knowledge of these peptides is of pivotal importance in fundamental studies of T cell action and in cellular immunotherapy and transplantation. In this paper we present the in-depth identification and relative quantification of 14,500 peptide ligands constituting the HLA ligandome of B cells. This large number of identified ligands provides general insight into the presented peptide repertoire and antigen presentation. Our uniquely large set of HLA ligands allowed us to characterize in detail the peptides constituting the ligandome in terms of relative abundance, peptide length distribution, physicochemical properties, binding affinity to the HLA molecule, and presence of post-translational modifications. The presented B-lymphocyte ligandome is shown to be a rich source of information by the presence of minor histocompatibility antigens, virus-derived epitopes, and post-translationally modified HLA ligands, and it can be a good starting point for solving a wealth of specific immunological questions. These HLA ligands can form the basis for reversed immunology approaches to identify T cell epitopes based not on in silico predictions but on the bona fide eluted HLA ligandome. FAU - Hassan, Chopie AU - Hassan C AD - Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, The Netherlands. FAU - Kester, Michel G D AU - Kester MG FAU - de Ru, Arnoud H AU - de Ru AH FAU - Hombrink, Pleun AU - Hombrink P FAU - Drijfhout, Jan Wouter AU - Drijfhout JW FAU - Nijveen, Harm AU - Nijveen H FAU - Leunissen, Jack A M AU - Leunissen JA FAU - Heemskerk, Mirjam H M AU - Heemskerk MH FAU - Falkenburg, J H Frederik AU - Falkenburg JH FAU - van Veelen, Peter A AU - van Veelen PA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130312 PL - United States TA - Mol Cell Proteomics JT - Molecular & cellular proteomics : MCP JID - 101125647 RN - 0 (HLA Antigens) RN - 0 (Ligands) RN - 0 (Peptides) SB - IM MH - Antigen Presentation MH - B-Lymphocytes/*metabolism MH - Cell Line, Transformed MH - HLA Antigens/*metabolism MH - Herpesvirus 4, Human/genetics MH - Humans MH - Ligands MH - Peptides/*metabolism PMC - PMC3708169 EDAT- 2013/03/14 06:00 MHDA- 2014/01/29 06:00 PMCR- 2014/07/01 CRDT- 2013/03/14 06:00 PHST- 2013/03/14 06:00 [entrez] PHST- 2013/03/14 06:00 [pubmed] PHST- 2014/01/29 06:00 [medline] PHST- 2014/07/01 00:00 [pmc-release] AID - S1535-9476(20)32553-6 [pii] AID - M112.024810 [pii] AID - 10.1074/mcp.M112.024810 [doi] PST - ppublish SO - Mol Cell Proteomics. 2013 Jul;12(7):1829-43. doi: 10.1074/mcp.M112.024810. Epub 2013 Mar 12.