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. 2019 Jan 7;9:691. doi: 10.3389/fgene.2018.00691

Figure 1.

Figure 1

Canonical non-homologous end joining (c-NHEJ). After CRISPR-Cas9 introduced a DSB, NHEJ is initiated by the binding of the Ku heterodimeric complex. This then forms the core complex, which is considered to recognize broken ends and keeps them together. The ends will then be ligated by various ligases.