The same kinetics of ssDNA gap repair were also observed using the BRCA1 exon 11 mutant ovarian cancer cell line UWB1.289 (referred to here as UW) and its complemented derivative expressing wild-type BRCA1 (UW + BRCA1), confirming that the observed phenotype is not cell type-specific (Supplemental Fig. S1A). Here, BRCA1 is linked to ovarian carcinoma.