PLAA/UFD-3通过其内在的无序域调节P体
Alakananda Das1, Yanping Qiu1, Trevor J Wolf1
1Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125.
概括
脂酶A2激活蛋白 (PLAA) 通过不同的途径调节蛋白质组稳态. 作为PLAA的正经体,UFD-3与P体中的mRNA分解复杂蛋白相互作用,与其在蛋白质降解中的作用分开.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 蛋白质组学是指蛋白质组学
背景情况:
- 蛋白质组稳定对于真核生物的生存和适应至关重要.
- 脂酶A2激活蛋白 (PLAA) 涉及到依赖于乌比基的蛋白质降解.
- 精确的分子目标和PLAA的相互作用网络尚未完全理解.
研究的目的:
- 为了研究神经元相互作用的C.I. 优雅的PLAA正义词UFD-3. 这是一个很好的例子.
- 为了确定UFD-3对无处不在的蛋白质和全球蛋白质表达的影响.
- 阐明UFD-3在蛋白质降解和mRNA调节中的独特作用.
主要方法:
- 在Caenorhabditis elegans中采用蛋白质组规模的方法.
- 在体外 (in vitro) 的生化分析.
- 在C.中进行光成像. 伊莱根斯 (elegans) 是一个词.
主要成果:
- UFD-3与mRNA分离复杂调控子单元DCAP-1直接相互作用.
- UFD-3的内在无序区域 (IDR) 对于将DCAP-1招募到P体至关重要.
- 失去IDR不会影响UFD-3在依赖于乌比基的蛋白质降解途径中的功能.
结论:
- UFD-3在细胞质mRNA处理体 (P体) 中发挥作用.
- 在P体中UFD-3的功能与其在依赖于ubiquitin的蛋白质降解中的作用不同.
- 通过蛋白质循环和mRNA调节途径,PLAA/UFD-3调节蛋白质组稳态.
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