原生装配状态下植物光系统 I 的结构将 PsaF 定义为调控检查点

IF 15.8 1区生物学 Q1 PLANT SCIENCES

Nature Plants Pub Date : 2024-05-30 DOI:10.1038/s41477-024-01699-8

Andreas Naschberger, Mariia Fadeeva, Daniel Klaiman, Anna Borovikova-Sheinker, Ido Caspy, Nathan Nelson, Alexey Amunts

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引用次数: 0

摘要

植物光合系统 I（PSI）由至少 13 个核编码亚基和 4 个叶绿体编码亚基组成，它们共同充当阳光驱动的氧化还原酶。在此，我们报告了从绿化燕麦幼苗中分离出的 PSI 组装中间体的结构。该组装中间体至少缺少包括 PsaF 和 LHCI 在内的八个亚基，并且缺乏光反应活性。数据表明，PsaF 是一个调控检查点，它能促进 LHCI 的组装，从而有效地将生物发生与功能结合起来。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Structure of plant photosystem I in a native assembly state defines PsaF as a regulatory checkpoint

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Structure of plant photosystem I in a native assembly state defines PsaF as a regulatory checkpoint

Plant photosystem I (PSI) consists of at least 13 nuclear-encoded and 4 chloroplast-encoded subunits that together act as a sunlight-driven oxidoreductase. Here we report the structure of a PSI assembly intermediate that we isolated from greening oat seedlings. The assembly intermediate shows an absence of at least eight subunits, including PsaF and LHCI, and lacks photoreduction activity. The data show that PsaF is a regulatory checkpoint that promotes the assembly of LHCI, effectively coupling biogenesis to function. This study reports the structure of a photosystem I assembly intermediate isolated from greening oat seedlings. It defines PsaF as a regulatory checkpoint promoting the association of LHCI that couples biogenesis to function.

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来源期刊

Nature Plants PLANT SCIENCES-

CiteScore

25.30

自引率

2.20%

发文量

196

期刊介绍： Nature Plants is an online-only, monthly journal publishing the best research on plants — from their evolution, development, metabolism and environmental interactions to their societal significance.