HLA-C and pancreatic adenocarcinoma: We performed further analyses to reveal the correlation among SQLE expression, copy number, methylation, and tumor immune features in PAAD, including lymphocytes (Supplementary Figure S2-A), immuno-inhibitors (Supplementary Figure S2-B), MHC molecules (Supplementary Figure S2-C), and immunostimulators (Supplementary Figure S2-D).