SMARCA4 and melanoma: SMARCA4 gene was highly methylated in the TCGA database (Figure S5A) and cg08151828, cg26967868 and cg23963476 showed the highest correlation with SMARCA4 mRNA level (Figure S5B), among which cg23963476 is negatively correlated with SMARCA4 and correlates with the survival of melanoma patients (Figure S5C–D).