相关实验视频
Updated: May 13, 2026

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In Vitro Ubiquitination and Deubiquitination Assays of Nucleosomal Histones
Published on: July 25, 2019
通过无处不在的化来规范依赖于WASH的actin聚合和蛋白质贩运
Yi-Heng Hao1, Jennifer M Doyle, Saumya Ramanathan
1Department of Physiology, UT Southwestern Dallas, TX 75390, USA.
Cell
|March 5, 2013
概括
乌比基因化调节了内体蛋白质的运输. MAGE-L2-TRIM27结合酶准WASH,激活了actin核化,并使得复原体介导的运输成为可能.
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:
- 内体蛋白贩运对细胞功能至关重要,并与疾病有关.
- 病原体往往为了自身利益而劫持内体通路.
- 逆转激素复合体和WASH调节复合体是内体体运输中的关键参与者.
研究的目的:
- 为了阐明ubiquitination在内体蛋白贩运中的作用.
- 为了识别参与复原体介导运输的特定乌比基链酶.
- 了解将无处不在化与内基因组中的行为核化联系起来的分子机制.
主要方法:
- 使用共免疫沉和显微镜研究了MAGE-L2-TRIM27的局部化.
- 利用siRNA倒置来评估MAGE-L2-TRIM27和Ube2O对复原体运输的影响.
- 研究了MAGE-L2-TRIM27对WASH无化和F-actin核化的影响.
- 分析了干扰WASH无化对内体体运输的影响.
主要成果:
- MAGE-L2-TRIM27通过与逆转激素复合体的相互作用定位到内分体.
- 抑制MAGE-L2-TRIM27或Ube2O会影响复原体介导的运输.
- MAGE-L2-TRIM27 基因酶活性对于 WASH 介导的 F-actin 核化是必不可少的.
- MAGE-L2-TRIM27在K220中介于WASH的K63连接的泛基化,这对于F-actin核和运输至关重要.
结论:
- MAGE-L2-TRIM27在逆行性内体运输中发挥着至关重要的作用.
- 通过MAGE-L2-TRIM27将WASH与K63结合的泛基化,是内体性动蛋白核化的一个关键调节步骤.
- 这项研究确定了WASH监管综合体的新型激活信号.
相关概念视频
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These groups modify specific amino acids in a protein.
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