通过一个无序的C端短线性基因来控制动胺相关蛋白1的Allosteric控制
Isabel Pérez-Jover1,2, Kristy Rochon3, Di Hu4
1Department of Biochemistry and Molecular Biology, University of the Basque Country, 48940, Leioa, Spain.
Nature communications
|January 3, 2024
概括
与胺相关的蛋白1 (Drp1) C端短线性动因 (CT-SLiM) 是线粒体和过氧体裂变的关键. 这种动机通过全控制来调节Drp1的功能,影响GTPase活动和组装动态.
科学领域:
- 细胞生物学 细胞生物学
- 生物化学 生物化学
- 分子生物学分子生物学
背景情况:
- 动胺相关蛋白1 (Drp1) 对于线粒体和过氧体裂变至关重要.
- 关于DRP1活动的确切监管机制尚不清楚.
研究的目的:
- 调查Drp1 C-终端的保存基因在调节其结构和功能的作用.
- 阐明控制DRp1介导的膜裂变的全质性机制.
主要方法:
- 使用模型膜进行体外生化分析.
- 在细胞系统中的体内研究.
- 对Drp1结构,动态和GTPase活性进行分析.
主要成果:
- 在Drp1 C端的六个残留的短线性基因 (CT-SLiM) 作为一个关键的全位.
- 与GIPC-1或非本地扩展的CT-SLiM相互作用会改变Drp1动态和GTP水解,在体外促进膜裂变.
- 切除和CT-SLiM的非原生扩展都会在体内损害线粒体和过氧体裂变.
结论:
- Drp1催化膜裂变依赖于通过CT-SLiM进行的全沟通.
- GTPase活动的减速和子单元组合的合变化对于裂变至关重要.
- 在体内,CT-SLiM对于生产性线粒体和过氧体裂变至关重要.
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