Updated project metadata. A use case of the benign HLA-Ligand-Atlas is the prioritization of tumor-associated targets for e.g. peptide vaccination. Based on three glioblastoma samples, we illustrated how many of these peptides are covered in the benign dataset. The experimental and computational workflow for the isolation and identification of the glioblastoma immunopeptidomes is the same, as for all samples included in the HLA Ligand Atlas. As the three glioblastoma samples are not included in the HLA Ligand Atlas dataset, they have been deposited under a separate submission.