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Cells experiencing DNA replication stress enter mitosis with under-replicated DNA, which activates a repair mechanism known as mitotic DNA synthesis (MiDAS). Here we describe a protocol to identify at genome wide and at high resolution the genomic sites where MiDAS occurs in cells exposed to aphidicolin. We use EdU incorporation to label nascent DNA in mitotic cells, followed by isolation of the EdU-labeled DNA and next-generation sequencing. For complete details on the use and execution of this protocol, please refer to Groelly et al. (2022)1 and Macheret et al. (2020).2.

Original publication

DOI

10.1016/j.xpro.2022.101970

Type

Journal article

Journal

STAR Protoc

Publication Date

03/01/2023

Volume

4

Keywords

Cell Biology, Cell culture, ChIPseq, Molecular Biology, Sequencing