Abstract
Homologous recombination (also termed homology-directed repair, HDR) is a major pathway for the repair of DNA interstrand crosslinks (ICLs) in mammalian cells. Cells from Fanconi anemia (FA) patients are characterized by extreme ICL sensitivity, but their reported defect in HDR is mild. Here, we examined ICL-induced HDR using a GFP reporter and observed a profound defect in ICL-induced HDR in FA cells, but only when the reporter could replicate.
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