相关实验视频
Updated: Jan 17, 2026

In Vitro SUMOylation Assay to Study SUMO E3 Ligase Activity
Published on: January 29, 2018
构成性安德罗斯坦受体激活通过ubiquitination和sumoylation调节YAP表达和活性
Fengting Liang1, Shuaishuai Zhang1, Wenhong Zhou1
1NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening & Guangdong-Hongkong-Macao Joint Laboratory for New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China.
构成性安德罗斯坦受体 (CAR) 激活通过修改Yes相关蛋白 (YAP) 后翻译修改来影响Hippo通路. 通过K63链接的无化和SUMO1修饰,CAR促进YAP的核转移,影响肝脏的再生.
科学领域:
- 分子生物学分子生物学
- 细胞信号传输 细胞信号传输
- 核受体 核受体 核受体
背景情况:
- 构成性安德罗斯坦受体 (CAR) 调节新陈代谢和平衡.
- 是的相关蛋白 (YAP) 是河马信号通路的关键组成部分.
- 众所周知,CAR激活与YAP相互作用,促进其核转移.
研究的目的:
- 为了阐明CAR和YAP之间的特定结合点.
- 调查CAR激活对YAP翻译后修改的影响.
- 了解CAR-YAP相互作用在肝脏再生中的调节机制.
主要方法:
- 蛋白质与蛋白质相互作用研究以确定结合域.
- 分析YAP的翻译后修改 (无化,SUMOylation等) 的分析. 在CAR激活后.
- 研究E3酶TRAF6和PIAS4在CAR介导的YAP调控中的作用.
主要成果:
- CAR的联结域 (LBD) 与YAP的WW域相互作用.
- CAR激活抑制了YAP的无处不在,但增强了SUMO1的修饰和K63相关的无处不在.
- 在TRAF6中介于CAR增强的K63结合的无化,而PIAS4则促进YAP SUMO1的修饰.
结论:
- CAR通过特定的翻译后修改来调节YAP活动,包括K63相关的泛化和SUMO1ylation.
- 在CAR-YAP监管轴中,TRAF6和PIAS4是关键的E3链酶.
- 这些发现加深了对CAR在通过YAP途径调节的肝脏再生中的作用的理解.
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