BMAL2 and cervical squamous cell carcinoma: After exploring the three-dimensional structure of ARNTL2, it was observed that ARNTL2 amplification accounted for the largest proportion among all mutation types, with the highest amplification being observed in ovarian serous cystadenocarcinoma (7.53%), followed by TGCT (7.38%) and cervical squamous cell carcinoma (5.49%).