There were generally more MHC Class I epitopes than Class II epitopes, with a median Class I epitope burden of 6337 peptides (ranging from 2366 for NSCLC to 15,645.5 for MMR-deficient cancers) and a median Class II epitope burden of 6027 peptides (ranging from 2167.5 for NSCLC to 23,554.5 for MMR-deficient cancers). Here, MRC1 is linked to cancer.