Figure 4. Identification of potential immune subtypes of ccRCC patients and molecular characteristics. (A) PCA of ccRCC patients in TCGA cohort. (B) Heatmap of immune-related genes of C1/C2 ccRCC patients. (C, D) Kaplan-Meier curves showing overall survival (OS) of ccRCC immune subtypes in TCGA and ICGC cohorts. (E) TMB and number of mutated genes in C1/C2 ccRCC patients. (F, G) NAL and CIN score of C1/C2 ccRCC patients. (H, I) Expression of ICP genes in C1/C2 ccRCC patients from TCGA cohort and ICGC cohort separately. (J, K) Expression of ICD factors in C1/C2 ccRCC patients from TCGA cohort and ICGC cohort separately. (L, M) Expression of NMD factors in C1/C2 ccRCC patients from TCGA cohort and ICGC cohort separately. *padj < 0.05; **padj < 0.01; ***padj < 0.001.