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  1. DNA replication in primary hepatocytes without the six-subunit ORC

    This article has 12 authors:
    1. Róża K Przanowska
    2. Yuechuan Chen
    3. Takayuki-Okano Uchida
    4. Etsuko Shibata
    5. Xiaoxiao Hao
    6. Isaac Segura Rueda
    7. Kate Jensen
    8. Piotr Przanowski
    9. Anthony Trimboli
    10. Yoshiyuki Shibata
    11. Gustavo Leone
    12. Anindya Dutta
    This article has been curated by 1 group:
    • Curated by eLife

      eLife Assessment

      This valuable descriptive manuscript builds on prior research showing that the elimination of Origin Recognition Complex (ORC) subunits does not halt DNA replication. The authors obtain solid data using various methods to genetically remove one or two ORC subunits from specific tissues and still observe replication. The replication appears to be primarily endoreduplication, indicating that ORC-independent replication may promote genome reduplication without mitosis. The mechanism behind this ORC-independent replication remains to be elucidated. The study and mutants described herein lay the groundwork for future research to explore how cells compensate for the absence of ORC and to develop functional approaches to investigate this process. The reviewers suggested the observations could be supported by additional experiments. This work will be of interest to those studying genome duplication and replication.

    Reviewed by eLife, Review Commons

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