uS10c-BPG2模块在质细胞核子中调解核糖体RNA处理
Xueping Sun1,2, Meenu Singla-Rastogi3, Jingwen Wang1,2
1Institute of Crop Germplasm Resources (Biotechnology Research Center), Shandong Academy of Agricultural Sciences; Shandong Provincial Key Laboratory of Crop Genetic Improvement, Ecology and Physiology, Jinan, Shandong 250100, PR China.
Nucleic acids research
|April 30, 2024
概括
叶绿体核糖体生物发生涉及YqeH型GTPase Brassinazole-Insensitive Pale Green2 (BPG2) 和核糖体蛋白 uS10c,它们在核糖体内相互作用,调节核糖体的组装和功能.
科学领域:
- 植物生物学 植物生物学
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 叶绿体含有核糖体中的核糖体蛋白质 (RP) 和核糖体生物发生因子 (RBF),这表明核糖体和核糖体生产之间存在联系.
- 布拉西纳-不敏感的淡绿2 (BPG2),一种YqeH型的GTPase,被确定为Arabidopsis中的质细胞核酸相关的RBF.
研究的目的:
- 为了研究质细胞核酸和BPG2介导的核糖体生物发生之间的关系.
- 阐明BPG2如何向核糖体及其在核糖体组装中的作用.
主要方法:
- 在质细胞核子中研究了BPG2和核糖体蛋白 uS10c之间的相互作用.
- 分析了SU10c的哈普洛因缺乏对植物发育和叶绿体的影响.
- 研究了BPG2和uS10c与不同核糖体颗粒 (30S,多体) 的关联.
- 评估了BPG2和uS10c突变对rRNA处理和蛋白质积累的影响.
主要成果:
- 在质细胞核子中,BPG2与必不可少的塑性质核糖体蛋白 uS10c相互作用,独立于核糖体RNA (rRNA).
- uS10c 是一个单双不充分的基因,异构缺失导致多彩的芽和叶绿素聚合.
- BPG2 仅与 30S 核糖体颗粒结合,而 uS10c 集成到 30S 颗粒中,并且在多元体中发现.
- 缺少 uS10c 破坏了 BPG2 对核素的向,导致它在叶绿体内扩散.
- 失去BPG2功能或异构性Sus10c删除会损害rRNA处理,降低塑蛋白水平,并触发叶绿体信号传递.
结论:
- uS10c-BPG2模块在质细胞核酸体内调解核糖体生物发生方面发挥着至关重要的作用.
- 这种相互作用对于适当的核糖体组装,rRNA处理和维持质细胞功能至关重要.
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