An increased P4HA1 expression was remarkedly associated with poor survival in ACC, BLCA, CESC, chromophobe RCC, papillary RCC, LUAD, LUSC, MESO, PAAD, PCPG, SARC, THCA, and UVM, whereas it was associated with better survival in clear cell RCC. The gene discussed is P4HA1; the disease is bladder transitional cell carcinoma.