Structural features of the diatom photosystem II-light-harvesting antenna complex

doi:10.1111/febs.15183

IB-CAS > 中科院光生物学重点实验室

	Structural features of the diatom photosystem II-light-harvesting antenna complex
	Wang, Wenda ; Zhao, Songhao 1; Pi, Xiong ; Kuang, Tingyun ; Sui, Sen-Fang ; Shen, Jian-Ren
	2020
发表期刊	FEBS JOURNAL
ISSN	1742-464X
卷号	287 期号:11 页码:2191-2200
摘要	In photosynthesis, light energy is captured by pigments bound to light-harvesting antenna proteins (LHC) that then transfer the energy to the photosystem (PS) cores to initiate photochemical reactions. The LHC proteins surround the PS cores to form PS-LHC supercomplexes. In order to adapt to a wide range of light environments, photosynthetic organisms have developed a large variety of pigments and antenna proteins to utilize the light energy efficiently under different environments. Diatoms are a group of important eukaryotic algae and possess fucoxanthin (Fx) chlorophyll a/c proteins (FCP) as antenna which have exceptional capabilities of harvesting blue-green light under water and dissipate excess energy under strong light conditions. We have solved the structure of a PSII-FCPII supercomplex from a centric diatom Chaetoceros gracilis by cryo-electron microscopy, and also the structure of an isolated FCP dimer from a pennate diatom Phaeodactylum tricornutum by X-ray crystallography at a high resolution. These results revealed the oligomerization states of FCPs distinctly different from those of LHCII found in the green lineage organisms, the detailed binding patterns of Chl c and Fxs, a huge pigment network, and extensive protein-protein, pigment-protein, and pigment-pigment interactions within the PSII-FCPII supercomplex. These results therefore provide a solid structural basis for examining the detailed mechanisms of the highly efficient energy transfer and quenching processes in diatoms.
关键词	diatom energy transfer fucoxanthin light harvesting photosystem
学科领域	Biochemistry & Molecular Biology
DOI	10.1111/febs.15183
收录类别	SCI
语种	英语
WOS关键词	ENERGY-TRANSFER PATHWAYS ; CRYSTAL-STRUCTURE ; EXTRINSIC PROTEIN ; SUPERCOMPLEX ; MECHANISM ; PSBU
WOS研究方向	Biochemistry & Molecular Biology
WOS记录号	WOS:000505929000001
出版者	WILEY
文献子类	Review
出版地	HOBOKEN
EISSN	1742-4658
资助机构	National Key R&D Program of China [2017YFA0503700, 2019YFA0906300] ; CAS Key Research Program for Frontier Science [QYZDY-SSW-SMC003] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31600191]
作者邮箱	jrshen@ibcas.ac.cn
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/21955
专题	中科院光生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Photosynth Res Ctr, Key Lab Photobiol, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Tsinghua Univ, Beijing Adv Innovat Ctr Struct Biol, Sch Life Sci, State Key Lab Membrane Biol, Beijing, Peoples R China 4.Okayama Univ, Res Inst Interdisciplinary Sci, Okayama, Japan 5.Okayama Univ, Grad Sch Nat Sci & Technol, Okayama, Japan
推荐引用方式 GB/T 7714	Wang, Wenda,Zhao, Songhao,Pi, Xiong,et al. Structural features of the diatom photosystem II-light-harvesting antenna complex[J]. FEBS JOURNAL,2020,287(11):2191-2200.
APA	Wang, Wenda,Zhao, Songhao,Pi, Xiong,Kuang, Tingyun,Sui, Sen-Fang,&Shen, Jian-Ren.(2020).Structural features of the diatom photosystem II-light-harvesting antenna complex.FEBS JOURNAL,287(11),2191-2200.
MLA	Wang, Wenda,et al."Structural features of the diatom photosystem II-light-harvesting antenna complex".FEBS JOURNAL 287.11(2020):2191-2200.

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