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通过YST-PPI方法,通过现场表征内质网膜居民蛋白的相互作用

Xian Fan¹, Huahua He¹, Ting Wang¹

¹State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative, Innovation Center for Green Transformation of Bio-resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, China.

Biotechnology journal

|August 30, 2024

概括

一种新的YST-PPI方法有效地绘制了内质网膜 (ER) 内的蛋白相互作用. 这项研究确定了74多个蛋白质对,揭示了Lhs1pp.

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:

细胞内膜网膜 (ER) 居住蛋白质对于蛋白质折叠,修饰和运输至关重要.
了解ER中的蛋白质-蛋白质相互作用 (PPI) 对于阐明其复杂功能至关重要.
现有的方法可能在有效和定量地研究ER in situ PPIs方面存在局限性.

研究的目的:

开发一种新,快速和定量方法,以在现场描述ER蛋白与蛋白相互作用.
研究Saccharomyces cerevisiae中ER居住蛋白的相互作用网络.
为了确定ER蛋白相互作用的关键调节者.

主要方法:

开发YST-PPI (基于YESS的蛋白质与蛋白质相互作用的分裂快速TEV蛋白酶系统) 方法.
整合了YESS系统,分裂TEV技术,以及一个ER保留信号 (ERS).
应用YST-PPI来研究S. cerevisiae中的15种ER居住蛋白之间的相互作用.

主要成果:

YST-PPI系统成功地在ER中识别了超过74个相互作用的居民蛋白对.
在S. cerevisiae中构建了ER居民蛋白的综合相互作用网络地图.
Lhs1p被确定为大多数ER-居民蛋白相互作用的关键调节者,不包括Sil1p.

结论:

YST-PPI方法提供了一个有效的策略,用于快速和定量地分析ER in situ PPI.
居住在ER中的蛋白质具有合作性,可能形成多重复合体.
Lhs1p在控制ER分子伴侣中发挥着重要作用,突出了其在ER恒温中的重要性.

关键词:

在ER中居住的蛋白质是ER.它们中的一种是S. cerevisiae.在 YST-PPI 中.在现场检测检测.蛋白质与蛋白质的相互作用

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