腺三酸盐:控制蛋白质平衡的原始分子,并塑造基因组-蛋白质组接口
1Department of Biological Sciences, Faculty of Science, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore.
Biomolecules
|April 27, 2024
概括
氨酸三酸 (ATP) 和核酸通过与蛋白质域结合来调节液体-液体相分离 (LLPS),影响从生命早期到现代细胞的无膜有机体和蛋白质平衡的形成.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 进化生物学 进化生物学
背景情况:
- 腺三酸盐 (ATP) 是通用的能量货币,核酸储存遗传信息.
- 液-液相分离 (LLPS) 从具有内在无序区域 (IDR) 和核酸的蛋白质中形成无膜有机体 (MLOs).
- ATP和核酸在调节LLPS中的作用尚未完全理解.
研究的目的:
- 通过ATP和核酸调节的特定蛋白质 (FUS,TDP-43,SARS-CoV-2 N蛋白质) 的LLPS进行NMR研究.
- 阐明ATP和核酸影响LLPS的机制.
- 探索ATP在LLPS和细胞组织中的进化意义.
主要方法:
- 核磁共振 (NMR) 光谱法用于研究LLPS.
- 研究了ATP和核酸与人类FUS,TDP-43和SARS-CoV-2 N蛋白的相互作用.
- 分析了ATP和核酸对蛋白质折叠和LLPS的影响.
主要成果:
- ATP与折叠的蛋白质域结合,与核酸结合部位重叠.
- ATP和核酸竞争性地与蛋白质域和IDR结合,双相调节LLPS.
- ATP有效地诱导蛋白质折叠,独立于其能量功能.
结论:
- ATP和核酸在调节LLPS和MLO形成方面发挥着至关重要的相互联系的作用.
- ATP与蛋白质的相互作用影响细胞组织和蛋白质平衡.
- 在LLPS中ATP的作用表明它在细胞生命的起源和进化中的重要性.
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