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The E3 ubiquitin ligase TRIP12 participates in cell cycle progression and chromosome stability

Abstract : Several studies have linked the E3 ubiquitin ligase TRIP12 (Thyroid hormone Receptor Interacting Protein 12) to the cell cycle. However, the regulation and the implication of this protein during the cell cycle are largely unknown. In this study, we show that TRIP12 expression is regulated during the cell cycle, which correlates with its nuclear localization. We identify an euchromatin-binding function of TRIP12 mediated by a N-terminal intrinsically disordered region. We demonstrate the functional implication of TRIP12 in the mitotic entry by controlling the duration of DNA replication that is independent from its catalytic activity. We also show the requirement of TRIP12 in the mitotic progression and chromosome stability. Altogether, our findings show that TRIP12 is as a new chromatin-associated protein with several implications in the cell cycle progression and in the maintenance of genome integrity.
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https://www.hal.inserm.fr/inserm-02489315
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Submitted on : Monday, February 24, 2020 - 1:27:16 PM
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Dorian Larrieu, Manon Brunet, Claire Vargas, Naïma Hanoun, Laetitia Ligat, et al.. The E3 ubiquitin ligase TRIP12 participates in cell cycle progression and chromosome stability. Scientific Reports, Nature Publishing Group, 2020, 10 (1), pp.789. ⟨10.1038/s41598-020-57762-9⟩. ⟨inserm-02489315⟩

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