Figure 3.
CTCF establishes γ-H2AX domains during DSB repair. Upon DNA damage, CTCF binds to DSBs and facilitates the formation of γ-H2AX domains by functioning as a domain-barrier protein. CTCF depletion destroys the higher-order chromatin structure and causes the γ-H2AX foci to spread and the DNA repair to be impaired.
