9-cis-Neoxanthin in Light Harvesting Complexes of Photosystem II Regulates the Binding of Violaxanthin and Xanthophyll Cycle
文献类型：期刊论文
| 作者 | Wang, Ke3; Tu, Wenfeng; Liu, Cheng; Rao, Yan; Gao, Zhimin1; Yang, Chunhong |
| 刊名 | PLANT PHYSIOLOGY
 |
| 出版日期 | 2017 |
| 卷号 | 174期号:1页码:86-96 |
| ISSN号 | 0032-0889 |
| DOI | 10.3389/fpls.2017.02154 |
| 文献子类 | Article |
| 英文摘要 | The light-harvesting chlorophyll a/b complex of photosystem II (LHCII) is able to switch to multiple functions under different light conditions (i.e. harvesting solar energy for photosynthesis and dissipating excess excitation energy for photoprotection). The role of the different carotenoids bound to LHCII in regulating the structure and function of the complex is a long-lasting question in photosynthesis research. 9-cis-Neoxanthin (Nx) is one of the important carotenoids, which can only be found in the LHCIIs. High-resolution structural analysis of LHCII shows that Nx is located between different monomeric LHCIIs, with one side protruding into the lipid membrane. In this study, the various functional significances of this unique feature of Nx binding in LHCII are studied with the in vitro reconstituted LHCIIs both with and without Nx and the native complexes isolated either from wild-type Arabidopsis (Arabidopsis thaliana) or from its mutant aba4-3 lacking Nx. Our results reveal that the binding of Nx affects the binding affinity of violaxanthin (Vx) to LHCII significantly. In the absence of Nx, Vx has a much higher binding affinity to trimeric LHCII. The strong coordination between Nx and Vx at the interfaces of adjacent monomers of LHCII plays an important role both in operating the xanthophyll cycle and in the transient modulation of nonphotochemical quenching. |
| 学科主题 | Plant Sciences |
| 出版地 | ROCKVILLE |
| 电子版国际标准刊号 | 1532-2548 |
| WOS关键词 | CHLOROPHYLL-A/B-COMPLEX ; MAJOR ANTENNA COMPLEX ; HIGHER-PLANTS ; DE-EPOXIDASE ; ANGSTROM RESOLUTION ; FUNCTIONAL-ANALYSIS ; ENERGY-DISSIPATION ; NEOXANTHIN-BINDING ; CRYSTAL-STRUCTURE ; STRUCTURAL BASIS |
| 语种 | 英语 |
| WOS记录号 | WOS:000418035000001 |
| 出版者 | AMER SOC PLANT BIOLOGISTS |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of SciencesChinese Academy of Sciences [XDB17030100] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370275, 31570236, 31600192, 31370588] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/22244]  |
| 专题 | 中科院光生物学重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Int Ctr Bamboo & Rattan, Key Lab Sci & Technol Bamboo & Rattan, Beijing 100102, Peoples R China 3.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ke,Tu, Wenfeng,Liu, Cheng,et al. 9-cis-Neoxanthin in Light Harvesting Complexes of Photosystem II Regulates the Binding of Violaxanthin and Xanthophyll Cycle[J]. PLANT PHYSIOLOGY,2017,174(1):86-96. |
| APA | Wang, Ke,Tu, Wenfeng,Liu, Cheng,Rao, Yan,Gao, Zhimin,&Yang, Chunhong.(2017).9-cis-Neoxanthin in Light Harvesting Complexes of Photosystem II Regulates the Binding of Violaxanthin and Xanthophyll Cycle.PLANT PHYSIOLOGY,174(1),86-96. |
| MLA | Wang, Ke,et al."9-cis-Neoxanthin in Light Harvesting Complexes of Photosystem II Regulates the Binding of Violaxanthin and Xanthophyll Cycle".PLANT PHYSIOLOGY 174.1(2017):86-96. |
入库方式： OAI收割
来源：植物研究所
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