优盈平台注册

网站地图 优盈平台注册 │ │ 内部网English |
优盈平台注册 所况简介 机构设置 优盈平台注册研队伍 院地合作 党群园地 国际交流 博士后 研究生教育 信息优盈平台注册开
优盈平台注册研进展
优盈平台注册果报道
最新重要论文(影响因子PNAS及以上)
发表论文数据库
所级学术报告
优盈平台注册学优盈平台注册果
发表论文
专著
专利
获奖
专题
所史丛书
所庆专辑
建所50周年画册
现在位置:优盈平台注册 > 优盈平台注册研进展 > 最新重要论文(影响因子PNAS及以上)
Structural basis for energy and electron transfer of the photosystem I–IsiA–flavodoxin supercomplex, Nature Plants, 10 Feb 2020
2020-02-10 | 【   优盈平台注册  】【打印】【关闭

Nature Plants10 February, 2020,DOI:

Structural basis for energy and electron transfer of the photosystem I–IsiA–flavodoxin supercomplex

Peng Cao, Duanfang Cao, Long Si, Xiaodong Su, Lijin Tian, Wenrui Chang, Zhenfeng Liu, Xinzheng Zhang & Mei Li

Abstract

Under iron-deficiency stress, which occurs frequently in natural aquatic environments, cyanobacteria reduce the amount of iron-enriched proteins, including photosystem I (PSI) and ferredoxin (Fd), and upregulate the expression of iron-stress-induced proteins A and B (IsiA and flavodoxin (Fld)). Multiple IsiAs function as the peripheral antennae that encircle the PSI core, whereas Fld replaces Fd as the electron receptor of PSI. Here, we report the structures of the PSI3–IsiA18–Fld3 and PSI3–IsiA18 supercomplexes from Synechococcus sp优盈平台注册. PCC 7942, revealing features that are different from the previously reported PSI structures, and a sophisticated pigment network that involves previously unobserved pigment molecules. Spectroscopic results demonstrated that IsiAs are efficient light harvesters for PSI. Three Flds bind symmetrically to the trimeric PSI core—we reveal the detailed interaction and the electron transport path between PSI and Fld. Our results provide a structural basis for understanding the mechanisms of light harvesting, energy transfer and electron transport of cyanobacterial PSI under stressed conditions.

文章链接:

相关报道:http://www.shouyaoml.com/kyjz/zxdt/202002/t20200206_5497479.html

 

 

          
版权所优盈平台注册:优盈平台注册国优盈平台注册优盈平台注册生物物理研究所     京ICP备05002792号 京优盈平台注册网安备 110402500011 号
地址:优盈平台注册朝阳区大屯路15号(100101) 电话:010-64889872
意见反馈联优盈平台注册人:侯文茹 电子邮件:houwenru@ibp.ac.cn