Double-strand Breaks Alkylating Agents(e.g. Chloroambucil) Replication Stress DNA Repair ChromatinRemodelling TLK1/2 H2AX BRCA1 CDC25 P {{ board.text }} {{ board.text }} {{ board.text }} {{ board.text }} {{ board.text1 }} {{ board.text2 }} {{ board.text }} {{ group.title }} {{ text.text }} {{ button.text }} {{ group.title }} {{ text.text }} Notes: 1:Clickable 2:Unclickable