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Kobe University · Comprehensive Research Center for Biosignals

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Kobe University · Comprehensive Research Center for Biosignals

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ヌクレオチド除去修復のDNA損傷認識を制御するクロマチンダイナミクス2025 · 2025年02月, 生化学, 97(1) (1), 61 - 65, 日本語
Quantitative regulation of histone variant H2A.Z during cell cycle by ubiquitin proteasome system and SUMO-targeted ubiquitin ligases.Quantitative control of histones and histone variants during cell cycle is relevant to their epigenetic functions. We found that the level of yeast histone variant H2A.Z in the G2/M-phase is actively kept low by the ubiquitin proteasome system and SUMO-targeted ubiquitin ligases. Overexpression of H2A.Z induced defects in mitotic progression, suggesting functional importance of this quantitative control.
Analysis of the molecular evolution of histone variant H2A.Z using a linker-mediated complex strategy and yeast genetic complementation.The histone variant H2A.Z is deposited into chromatin by specific machinery and is required for genome functions. Using a linker-mediated complex strategy combined with yeast genetic complementation, we demonstrate evolutionary conservation of H2A.Z together with its chromatin incorporation and functions. This approach is applicable to the evolutionary analyses of proteins that form complexes with interactors.
XPC-RAD23B enhances UV-DDB binding to DNA to facilitate lesion search in nucleotide excision repairAbstract

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