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Cryo-EM structure of a Ca2⁺-bound photosynthetic LH1-RC complex containing multiple αβ-polypeptides
https://oist.repo.nii.ac.jp/records/1941
https://oist.repo.nii.ac.jp/records/194179f9c8d4-eac5-4ebd-aea3-db9578d6d121
名前 / ファイル | ライセンス | アクション |
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s41467-020-18748-3 (1.8 MB)
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Creative Commons Attribution 4.0 International(https://creativecommons.org/licenses/by/4.0/)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-02-22 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Cryo-EM structure of a Ca2⁺-bound photosynthetic LH1-RC complex containing multiple αβ-polypeptides | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Tani, Kazutoshi
× Tani, Kazutoshi× Kanno, Ryo× Makino, Yuki× Hall, Malgorzata× Takenouchi, Mizuki× Imanishi, Michie× Yu, Long-Jiang× Overmann, Jörg× Madigan, Michael T.× Kimura, Yukihiro× Mizoguchi, Akira× Humbel, Bruno M.× Wang-Otomo, Zheng-Yu |
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書誌情報 |
en : Nature Communications 巻 11, 号 1, p. 4955, 発行日 2020-10-02 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | The light-harvesting-reaction center complex (LH1-RC) from the purple phototrophic bacterium Thiorhodovibrio strain 970 exhibits an LH1 absorption maximum at 960nm, the most red-shifted absorption for any bacteriochlorophyll (BChl) a-containing species. Here we present a cryo-EM structure of the strain 970 LH1-RC complex at 2.82 angstrom resolution. The LH1 forms a closed ring structure composed of sixteen pairs of the αβ-polypeptides. Sixteen Ca ions are present in the LH1 C-terminal domain and are coordinated by residues from the αβ -polypeptides that are hydrogen-bonded to BChl a. The Ca2⁺-facilitated hydrogen-bonding network forms the structural basis of the unusual LH1 redshift. The structure also revealed the arrangement of multiple forms of α- and β -polypeptides in an individual LH1 ring. Such organization indicates a mechanism of interplay between the expression and assembly of the LH1 complex that is regulated through interactions with the RC subunits inside. | |||||
出版者 | ||||||
出版者 | Nature Research | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2041-1723 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/33009385 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1038/s41467-020-18748-3 | |||||
権利 | ||||||
権利情報 | © 2020 The Author(s). | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.nature.com/articles/s41467-020-18748-3 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |