Browsing by Author "Scully, Ralph"

Now showing items 1-9 of 9

    • 53BP1 Protects against CtIP-Dependent Capture of Ectopic Chromosomal Sequences at the Junction of Distant Double-Strand Breaks 

      Guirouilh-Barbat, Josée; Gelot, Camille; Xie, Anyong; Dardillac, Elodie; Scully, Ralph; Lopez, Bernard S. (Public Library of Science, 2016)
      DNA double-strand breaks (DSB) are very harmful lesions that can generate genome rearrangements. In this study, we used intrachromosomal reporters to compare both the efficiency and accuracy of end-joining occurring with ...

    • BRCA1 and CtIP suppress long tract gene conversion between sister chromatids 

      Chandramouly, Gurushankar; Kwok, Amy; Huang, Bin; Willis, Nicholas A.; Xie, Anyong; Scully, Ralph (2013)
      BRCA1 controls early steps of the synthesis-dependent strand annealing (SDSA) pathway of homologous recombination, but has no known role following Rad51-mediated synapsis. Here we show that BRCA1 influences post-synaptic ...

    • BRCA1 controls homologous recombination at Tus/Ter-stalled mammalian replication forks 

      Willis, Nicholas A.; Chandramouly, Gurushankar; Huang, Bin; Kwok, Amy; Follonier, Cindy; Deng, Chuxia; Scully, Ralph (2014)
      Replication fork stalling can promote genomic instability, predisposing to cancer and other diseases1–3. Stalled replication forks may be processed by sister chromatid recombination (SCR), generating error-free or error-prone ...

    • Complex Breakpoints and Template Switching Associated with Non-canonical Termination of Homologous Recombination in Mammalian Cells 

      Hartlerode, Andrea J.; Willis, Nicholas A.; Rajendran, Anbazhagan; Manis, John P.; Scully, Ralph (Public Library of Science, 2016)
      A proportion of homologous recombination (HR) events in mammalian cells resolve by “long tract” gene conversion, reflecting copying of several kilobases from the donor sister chromatid prior to termination. Cells lacking ...

    • Impact of Histone H4 Lysine 20 Methylation on 53BP1 Responses to Chromosomal Double Strand Breaks 

      Hartlerode, Andrea J.; Guan, Yinghua; Rajendran, Anbazhagan; Ura, Kiyoe; Schotta, Gunnar; Xie, Anyong; Shah, Jagesh V.; Scully, Ralph (Public Library of Science, 2012)
      Recruitment of 53BP1 to chromatin flanking double strand breaks (DSBs) requires γH2AX/MDC1/RNF8-dependent ubiquitination of chromatin and interaction of 53BP1 with histone H4 methylated on lysine 20 (H4K20me). Several ...

    • LRF maintains genome integrity by regulating the non-homologous end joining pathway of DNA repair 

      Liu, Xue-Song; Chandramouly, Gurushankar; Rass, Emilie; Guan, Yinghua; Wang, Guocan; Hobbs, Robin M.; Rajendran, Anbazhagan; Xie, Anyong; Shah, Jagesh V.; Davis, Anthony J.; Scully, Ralph; Lunardi, Andrea; Pandolfi, Pier Paolo (Nature Pub. Group, 2015)
      Leukemia/lymphoma-related factor (LRF) is a POZ/BTB and Krüppel (POK) transcriptional repressor characterized by context-dependent key roles in cell fate decision and tumorigenesis. Here we demonstrate an unexpected ...

    • PARP3 affects the relative contribution of homologous recombination and nonhomologous end-joining pathways 

      Beck, Carole; Boehler, Christian; Guirouilh Barbat, Josée; Bonnet, Marie-Elise; Illuzzi, Giuditta; Ronde, Philippe; Gauthier, Laurent R.; Magroun, Najat; Rajendran, Anbazhagan; Lopez, Bernard S.; Scully, Ralph; Boussin, François D.; Schreiber, Valérie; Dantzer, Françoise (Oxford University Press, 2014)
      The repair of toxic double-strand breaks (DSB) is critical for the maintenance of genome integrity. The major mechanisms that cope with DSB are: homologous recombination (HR) and classical or alternative nonhomologous end ...

    • A Protective Role for BRCA2 at Stalled Replication Forks 

      Chandramouly, Gurushankar; Willis, Nicholas; Scully, Ralph (BioMed Central, 2011)
      The hereditary breast and ovarian cancer predisposition genes BRCA1 and BRCA2 account for the lion’s share of heritable breast cancer risk in the human population. Loss of function of either gene results in defective ...

    • Role of BRCA Gene Dysfunction in Breast and Ovarian Cancer Predisposition 

      Scully, Ralph (BioMed Central, 2000)
      Tumor suppressor genes that perform apparently generic cellular functions nonetheless cause tissue-specific syndromes in the human population when they are mutated in the germline. The two major hereditary breast/ovarian ...