(A) Three clones (c2, c9, and c11) of HCT116 GFP-APOBEC3A-ERT2 cells, or parental HCT116 cells, were incubated with 4-OHT, CldU, and IdU, as indicated, and processed for DNA combing.
(B) The uracil-DNA glycosylase inhibitor (UGI) or an empty vector (EV) was introduced by lentiviral infection before DNA combing.
(C) hTERT-RPE-1 cells were harvested and lysed 16 h after UGI was introduced by lentiviral infection to assess UNG inhibition.
(D) hTERT-RPE-1 GFP-APOBEC3A-ERT2 cells were infected with EV or UGI before DNA combing. All bars represent the median, and p values were derived from an ANOVA with Dunn’s multiple comparisons post-test.