OBI1 and uterine corpus endometrial carcinoma: A total of 172 cases involving 193 mutations were analysed, revealing that RNF219 mutations occurred in 6.25% of patients in TCGA–uterine corpus endometrial carcinoma (TCGA‐UCEC), 3.83% of patients in TCGA–skin cutaneous melanoma (TCGA‐SKCM) and 3.27% of patients in TCGA–colon adenocarcinoma (Figure S1B).