title: NetMHCpan-3.0; improved prediction of binding to MHC class I molecules integrating information from multiple receptor and peptide length datasets.
abstract: BACKGROUND
  Binding of peptides to MHC class I molecules (MHC-I) is essential for antigen presentation to cytotoxic T-cells.
  
  
  RESULTS
  Here, we demonstrate how a simple alignment step allowing insertions and deletions in a pan-specific MHC-I binding machine-learning model enables combining information across both multiple MHC molecules and peptide lengths. This pan-allele/pan-length algorithm significantly outperforms state-of-the-art methods, and captures differences in the length profile of binders to different MHC molecules leading to increased accuracy for ligand identification. Using this model, we demonstrate that percentile ranks in contrast to affinity-based thresholds are optimal for ligand identification due to uniform sampling of the MHC space.
  
  
  CONCLUSIONS
  We have developed a neural network-based machine-learning algorithm leveraging information across multiple receptor specificities and ligand length scales, and demonstrated how this approach significantly improves the accuracy for prediction of peptide binding and identification of MHC ligands. The method is available at www.cbs.dtu.dk/services/NetMHCpan-3.0 .
authors.affiliation: Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín, Buenos Aires, Argentina. mniel@cbs.dtu.dk.|Center for Biological Sequence Analysis, Technical University of Denmark, Kgs. Lyngby, Denmark. mniel@cbs.dtu.dk.
authors.forename: Morten
authors.initials: M
authors.lastname: Nielsen
authors.affiliation: Instituto de Investigaciones Biotecnológicas, Universidad Nacional de San Martín, Buenos Aires, Argentina.
authors.forename: Massimo
authors.initials: M
authors.lastname: Andreatta
mesh_terms: D000483:Alleles; D019295:Computational Biology / Q000379:methods*; D066264:Datasets as Topic; D018984:Epitopes, T-Lymphocyte / Q000276:immunology / Q000378:metabolism; D015395:Histocompatibility Antigens Class I / Q000235:genetics / Q000276:immunology / Q000378:metabolism*; D008024:Ligands; D010455:Peptides / Q000276:immunology / Q000378:metabolism*; D011485:Protein Binding; D012372:ROC Curve; D011956:Receptors, Cell Surface / Q000276:immunology / Q000378:metabolism*; D012984:Software; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology / Q000378:metabolism
chemical_list: D018984:Epitopes, T-Lymphocyte; D015395:Histocompatibility Antigens Class I; D008024:Ligands; D010455:Peptides; D011956:Receptors, Cell Surface