Immunopeptidome analysis of patient-derived colorectal cancer cell lines HROC113 and HROC285 T0 M2 from the HROC collection [Mullins et al. Cancers (Basel). 2019;11(10):1520. doi: 10.3390/cancers11101520] was performed to characterize the natural HLA class I presented ligandome in native as well as IFNγ treated cells.