
Keywords: HU، هیدروکسی اوره; Fork collapse; Replication checkpoint; ATR; Replisome; iPONDATR, ATM and Rad3-related; RPA, Replication protein A; iPOND, Isolation of proteins on nascent DNA; ChIP, Chromatin immunoprecipitation; HU, Hydroxyurea; ssDNA, Single-stranded DNA