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• W2155261738 endingPage "3705" @default.
• W2155261738 startingPage "3695" @default.
• W2155261738 abstract "Fanconi anemia (FA) is a chromosome instability syndrome characterized by increased cancer predisposition. Within the FA pathway, an upstream FA core complex mediates monoubiquitination and recruitment of the central FANCD2 protein to sites of stalled replication forks. Once recruited, FANCD2 fulfills a dual role towards replication fork recovery: (i) it cooperates with BRCA2 and RAD51 to protect forks from nucleolytic degradation and (ii) it recruits the BLM helicase to promote replication fork restart while suppressing new origin firing. Intriguingly, FANCD2 and its interaction partners are also involved in homologous recombination (HR) repair of DNA double-strand breaks, hinting that FANCD2 utilizes HR proteins to mediate replication fork recovery. One such candidate is CtIP (CtBP-interacting protein), a key HR repair factor that functions in complex with BRCA1 and MRE11, but has not been investigated as putative player in the replication stress response. Here, we identify CtIP as a novel interaction partner of FANCD2. CtIP binds and stabilizes FANCD2 in a DNA damage- and FA core complex-independent manner, suggesting that FANCD2 monoubiquitination is dispensable for its interaction with CtIP. Following cellular treatment with a replication inhibitor, aphidicolin, FANCD2 recruits CtIP to transiently stalled, as well as collapsed, replication forks on chromatin. At stalled forks, CtIP cooperates with FANCD2 to promote fork restart and the suppression of new origin firing. Both functions are dependent on BRCA1 that controls the step-wise recruitment of MRE11, FANCD2 and finally CtIP to stalled replication forks, followed by their concerted actions to promote fork recovery." @default.
• W2155261738 created "2016-06-24" @default.
• W2155261738 creator A5030303449 @default.
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• W2155261738 creator A5061007251 @default.
• W2155261738 creator A5066373462 @default.
• W2155261738 date "2014-02-20" @default.
• W2155261738 modified "2023-10-16" @default.
• W2155261738 title "CtIP mediates replication fork recovery in a FANCD2-regulated manner" @default.
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• W2155261738 doi "https://doi.org/10.1093/hmg/ddu078" @default.
• W2155261738 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4065146" @default.
• W2155261738 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24556218" @default.
• W2155261738 hasPublicationYear "2014" @default.
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