Photosystem II / M-LHCII and CP24 complexes / PSII-LHCII / C2S2M2 supercomplex / MEMBRANE PROTEIN
機能・相同性
機能・相同性情報
photosynthesis, light harvesting in photosystem II / PSII associated light-harvesting complex II / response to high light intensity / regulation of stomatal movement / plastoglobule / response to abscisic acid / photosynthesis, light harvesting in photosystem I / chloroplast envelope / photosystem I / response to herbicide ...photosynthesis, light harvesting in photosystem II / PSII associated light-harvesting complex II / response to high light intensity / regulation of stomatal movement / plastoglobule / response to abscisic acid / photosynthesis, light harvesting in photosystem I / chloroplast envelope / photosystem I / response to herbicide / photosystem II / chlorophyll binding / chloroplast thylakoid membrane / response to light stimulus / protein domain specific binding / metal ion binding 類似検索 - 分子機能
Chlorophyll A-B binding protein, plant and chromista / Chlorophyll A-B binding protein / Chlorophyll A-B binding protein 類似検索 - ドメイン・相同性
The Key Research Program of Frontier Sciences of CAS
QYZDB-SSW-SMC005
中国
National 973 project grant
2011CBA00900
中国
National Natural Science Foundation of China
31570724 and 31270793
中国
引用
ジャーナル: Science / 年: 2017 タイトル: Structure and assembly mechanism of plant CSM-type PSII-LHCII supercomplex. 著者: Xiaodong Su / Jun Ma / Xuepeng Wei / Peng Cao / Dongjie Zhu / Wenrui Chang / Zhenfeng Liu / Xinzheng Zhang / Mei Li / 要旨: In plants, the photosynthetic machinery photosystem II (PSII) consists of a core complex associated with variable numbers of light-harvesting complexes II (LHCIIs). The supercomplex, comprising a ...In plants, the photosynthetic machinery photosystem II (PSII) consists of a core complex associated with variable numbers of light-harvesting complexes II (LHCIIs). The supercomplex, comprising a dimeric core and two strongly bound and two moderately bound LHCIIs (CSM), is the dominant form in plants acclimated to limited light. Here we report cryo-electron microscopy structures of two forms of CSM (termed stacked and unstacked) from at 2.7- and 3.2-angstrom resolution, respectively. In each CSM, the moderately bound LHCII assembles specifically with a peripheral antenna complex CP24-CP29 heterodimer and the strongly bound LHCII, to establish a pigment network that facilitates light harvesting at the periphery and energy transfer into the core. The high mobility of peripheral antennae, including the moderately bound LHCII and CP24, provides insights into functional regulation of plant PSII.