Figure 3. The identification and prognostic analyses of the PRPCDGs risk signature. (A, B) LASSO regression analyses of PRPCDGs in TCGA-KIRC training dataset. (C) Bar plot on LASSO regression coefficients of the PRPCDGs. (D) The display of risk score, OS and OS status; Kaplan–Meier curves of the high- or low-PRPCDGs-risk group; prognostic performance of PRPCDGs risk signature presented in time-dependent ROC curves; heatmap of PRPCDGs expression in these two risk groups in KIRC training dataset. (E–G) The same analyses in KIRC-testing cohort and the external validation datasets (E-MTAB-1980 and TCGA-KIRP).