Robust prediction of HLA class II epitopes by deep motif deconvolution of immunopeptidomes
2019
Predictions of epitopes presented by class II human leukocyte antigen molecules (HLA-II) have limited accuracy, restricting vaccine and therapy design. Here we combined unbiased mass spectrometry with a motif deconvolution algorithm to profile and analyze a total of 99,265 unique peptides eluted from HLA-II molecules. We then trained an epitope prediction algorithm with these data and improved prediction of pathogen and tumor-associated class II neoepitopes. HLA class II epitopes are accurately predicted by analysis of a large peptide dataset.
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