HPRT1 activity was higher in the tumor groups of BLCA, BRCA, CESC, cholangiocarcinoma (CHOL), COAD, ESCA, GBM, HNSC, KICH, KIRC, KIRP, LIHC, LUAD, LUSC, PRAD, READ, sarcoma (SARC), STAD, THCA, and UCEC (Figure 1D). The gene discussed is HPRT1; the disease is bladder transitional cell carcinoma.