Human MutLα activates methylpurine DNA glycosylase to induce alkylation damage cytotoxicity.
Alkylation chemotherapy is commonly used against tumors such as glioblastoma, yet resistance often develops through downregulation of mismatch repair (MMR). Previous work has established that loss of MMR prevents the excision of the thymine-containing strand across O 6meG-T mismatches, thereby avoiding the futile repai...