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. 2021 Feb 27;11(3):363. doi: 10.3390/biom11030363

Figure 3.

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.