title: Input data of UV-treated hela-s3 in late S phase, replicate 1
design: HeLa cells were irradiated with UV at 1.5 or 3.5 hours after releasing to the S phase, then incubated with a medium containing EdU for 2 hours before harvesting. Genomic DNA were fragmented by sonication and biotin-labeled by click reaction, then end-repaired and ligated to the adaptor with NEBNext Ultra II DNA library preparation kit according to the manufacturer's instructions. One percent of each sample was amplified for input sequencing. Resulting libraries were sequenced by the Illumina NovaSeq system.