动态ASK1近距离网络揭示了在ABA和干旱适应中的SCF依赖和非正规角色
bioRxiv : the preprint server for biology
|January 9, 2026
概括
阿拉比多普西斯SKP1-LIKE 1 (ASK1) 作为一个枢纽,协调植物应激反应. ASK1集成了多种适应途径,影响干旱期间的蛋白质水平和酸 (ABA) 信号.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 植物需要动态蛋白质组重塑以适应环境.
- 乌比奎系统在协调植物应激反应中的作用尚未完全理解.
研究的目的:
- 在压力条件下调查Arabidopsis SKP1-LIKE 1 (ASK1) 的体内近距离相互作用体.
- 阐明ASK1如何协调植物对酸 (ABA) 信号和干旱的反应.
主要方法:
- 基于TurboID的近距离标签.
- 定量蛋白质组学. 定量蛋白质组学.
- 全球蛋白质组学分析.
主要成果:
- ASK1形成了特定条件的蛋白质网络,包括正规的SCF和非正规的关联.
- ABA和干旱诱导了不同的ASK1中心蛋白质组合,涉及转录,转化和蛋白质稳定机制.
- 过度表达ASK1会改变蛋白质的积累,有利于应激适应路径而不是免疫反应.
结论:
- ASK1作为一个多功能枢纽,集成SCF依赖和独立的通路.
- ASK1协调转录,转化和蛋白质分解的重编程,以适应植物的压力.
- ASK1在协调植物对非生物应激反应方面发挥着至关重要的作用.
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