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Copyright ©The Author(s) 2021.
World J Gastroenterol. May 7, 2021; 27(17): 1943-1958
Published online May 7, 2021. doi: 10.3748/wjg.v27.i17.1943
Figure 1
Figure 1 Overview of the homologous repair pathway and roles of key proteins. A: Following double strand break, BRCA 1 binds to the site of damage, mediating end resection and initiating homologous repair. This prevents repair via non-homologous end joining; B: BRCA1 binds with PALB2 and BRCA2 which facilitates assembly of RAD51 filaments; and C: RAD51 filaments form along ssDNA, subsequently leading to strand invasion and repair. DSB: Double strand break; HR: Homologous repair; NHEJ: Non-homologous end joining; BRCA: Breast cancer susceptibility gene.