Antigen Presentation 1 DM DO 1 HLA 1 HLA D antigen 1 HLA DR antigen 1 HLA antigen class 2 1 HLA-D Antigens 1 HLA-DR Antigens 1 Histocompatibility Antigens Class II 1 MHC 1 Peptides 1 Proteomics 1 antigen presentation 1 immunopeptidome 1 mass spectrometry 1 metabolism 1 peptide 1 proteome 1 proteomics 1