UBA1 was positively correlated with TMB in 9 types of tumours including STAD, UCEC, sarcoma (SARC), skin cutaneous melanoma (SKCM), PAAD, GBM, LUSC and LGG, while negatively correlated with TMB in THCA and KIRP (Figure S8A). The gene discussed is UBA1; the disease is pancreatic adenocarcinoma.