聚SUMOylation轴促进了Tof2的核细胞释放,用于线粒体的退出
Emily Gutierrez-Morton1, Cory Haluska2, Liam Collins3
1Department of Biomedical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32306, USA.
Cell reports
|July 13, 2024
概括
酵母中Tof2蛋白的SUMOylation触发了其从核中释放的过程,促进了线粒体的退出. 这种依赖于多SUMOylation的机制调节了必需的酸酶Cdc14活性.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 发芽的酵母中的核素将Cdc14封存起来,这种酸酶对线粒体的退出至关重要.
- 核细胞蛋白Tof2,Net1和Fob1对于这种结合是必不可少的.
- SUMOylation在调节这些核蛋白活性中的作用尚不清楚.
研究的目的:
- 研究SUMOylation在调节Tof2的功能和局部化中的作用.
- 阐明 Tof2 移位促进线粒体退出的机制.
- 要了解Tof2.2的细胞循环调节.
主要方法:
- 研究了细胞周期期间的ToF2脱和周转.
- 耗尽了SUMO蛋白酶Ulp2以观察对ToF2和Cdc14的影响.
- 使用一个系统将SUMO机器连接到Tof2.
- 产生了一个缺少SUMO的tof2突变.
主要成果:
- Tof2经历细胞循环调节的核细胞移位和降解.
- Ulp2耗尽诱导了Tof2的多SUMOylation,脱,降解和Cdc14释放/激活.
- 发现Tof2多SUMOylation对于其脱和降解是必要的和足够的.
- 下游酶参与其中,包括SUMO向的基酶和Cdc48/p97.
结论:
- 一个依赖于多SUMOylation的机制调节了Tof2从核中的脱离.
- 这种机制对于通过控制Cdc14释放来促进线粒体退出至关重要.
- SUMOylation 作为 Tof2 功能和核动力学的关键调节剂.
关键词:
CP: 细胞生物学 细胞生物学Cdc1414 在线阅读在Cdc48/p97/VCP中使用.这是一棵树枝.这就是SUMOylation的作用.在 Tof2 的位置上.细胞循环中的细胞循环.线粒体出口的出口是线粒体出口.核的核心是核的核.通过多SUMO基化.酵母酵母是一种酵母.更多相关视频
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