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Front Immunol. 2018 Jul 05;9:1538. doi: 10.3389/fimmu.2018.01538. eCollection 2018.

A Mechanistic Model for Predicting Cell Surface Presentation of Competing Peptides by MHC Class I Molecules.

Frontiers in immunology

Denise S M Boulanger, Ruth C Eccleston, Andrew Phillips, Peter V Coveney, Tim Elliott, Neil Dalchau

Affiliations

  1. Centre for Cancer Immunology and Institute for Life Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.
  2. Centre for Computational Science, Department of Chemistry, University College London, London, United Kingdom.
  3. CoMPLEX, University College London, London, United Kingdom.
  4. Microsoft Research, Cambridge, United Kingdom.

PMID: 30026743 PMCID: PMC6041393 DOI: 10.3389/fimmu.2018.01538

Abstract

Major histocompatibility complex-I (MHC-I) molecules play a central role in the immune response to viruses and cancers. They present peptides on the surface of affected cells, for recognition by cytotoxic T cells. Determining which peptides are presented, and in what proportion, has profound implications for developing effective, medical treatments. However, our ability to predict peptide presentation levels is currently limited. Existing prediction algorithms focus primarily on the binding affinity of peptides to MHC-I, and do not predict the relative abundance of individual peptides on the surface of antigen-presenting cells

Keywords: abundance; antigen presentation; interferon-γ; major histocompatibility class I; mechanistic model; peptide competition

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