FUS的陪伴式功能确保TAZ凝聚剂动态和转录激活
Yangqing Shao1, Xin Shu1,2, Yi Lu3
1Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Life Sciences Institute, Zhejiang University, Hangzhou, China.
Nature cell biology
|January 3, 2024
概括
FUS蛋白质就像一个陪伴者,保持转录凝结物的液态,用于Hippo通路的信号传输. 失去FUS会导致固体凝聚物,阻碍基因激活和瘤抑制.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 生物物理学的生物物理.
背景情况:
- 河马通路调节器官大小和组织平衡.
- 一个转录协活性剂TAZ,形成生物分子凝聚物来驱动基因表达.
- 在Hippo信号传递中TAZ凝聚物的生物物理调节仍然不清楚.
研究的目的:
- 研究调节TAZ凝结物的生物物理性质的机制.
- 确定与TAZ凝聚物相互作用的蛋白质及其功能作用.
- 了解凝聚力学如何影响河马路径活动.
主要方法:
- 化学交叉连接与公正的蛋白质组学相结合.
- 分析FUS-TAZ相互作用和冷凝物质的特性.
- 细胞测试以评估基因表达和前瘤活性.
主要成果:
- FUS蛋白与TAZ凝聚物结合,表现出一个伴侣式的效果.
- FUS维持TAZ的冷凝液流动性和转录活动.
- 丢失FUS导致凝状/固体TAZ凝结物,减少基因表达,并抑制了前瘤原生活性.
结论:
- FUS作为TAZ凝聚物的分子伴侣,调节Hippo信号传输.
- 转录凝聚物的流动性和动态对于基因激活至关重要.
- 通过FUS损失对凝结生物物理的调节失调会影响细胞功能,并可能导致瘤发生.
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