Figure 3. The expression of core circadian clock genes in KIRC tissue and normal tissue. (A) relative expression of circadian clock genes in tumor tissues. (B) relative expression of circadian clock genes in normal tissues. (C) Co-expression of circadian clock genes in tumor tissues. (D) Co-expression of circadian clock genes in normal tissues. (E) The methylation difference between tumors and normal tissues. (F) The methylation level affects the core circadian gene expressions. KIRC, Clear cell renal cell carcinoma.