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| Structural features of the diatom photosystem II-light-harvesting antenna complex | |
Wang, Wenda; Zhao, Songhao1; Pi, Xiong; Kuang, Tingyun; Sui, Sen-Fang; Shen, Jian-Ren
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| 2020 | |
| Source Publication | FEBS JOURNAL
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| ISSN | 1742-464X |
| Volume | 287Issue:11Pages:2191-2200 |
| Abstract | 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. |
| Keyword | diatom energy transfer fucoxanthin light harvesting photosystem |
| Subject Area | Biochemistry & Molecular Biology |
| DOI | 10.1111/febs.15183 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | ENERGY-TRANSFER PATHWAYS ; CRYSTAL-STRUCTURE ; EXTRINSIC PROTEIN ; SUPERCOMPLEX ; MECHANISM ; PSBU |
| WOS Research Area | Biochemistry & Molecular Biology |
| WOS ID | WOS:000505929000001 |
| Publisher | WILEY |
| Subtype | Review |
| Publication Place | HOBOKEN |
| EISSN | 1742-4658 |
| Funding Organization | 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] |
| Corresponding Author Email | jrshen@ibcas.ac.cn |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ibcas.ac.cn/handle/2S10CLM1/21955 |
| Collection | 中科院光生物学重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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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| Wang-2020-Structural（4334KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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