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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| s41467-021-22502-8.pdf | 3.31 MB | Adobe PDF | 見る/開く |
| タイトル: | Structure of the far-red light utilizing photosystem I of Acaryochloris marina |
| 著者: | Hamaguchi, Tasuku Kawakami, Keisuke Shinzawa-Itoh, Kyoko Inoue-Kashino, Natsuko Itoh, Shigeru Ifuku, Kentaro    https://orcid.org/0000-0003-0241-8008 (unconfirmed)Yamashita, Eiki Maeda, Kou Yonekura, Koji Kashino, Yasuhiro |
| 著者名の別形: | 浜口, 祐 川上, 恵典 伊藤（新澤）, 恭子 菓子野（井上）, 名津子 伊藤, 繁 伊福, 健太郎 山下, 栄樹 米倉, 功治 菓子野, 康浩 |
| キーワード: | Cryoelectron microscopy Photosystem I |
| 発行日: | 20-Apr-2021 |
| 出版者: | Springer Nature |
| 誌名: | Nature Communications |
| 巻: | 12 |
| 論文番号: | 2333 |
| 抄録: | Acaryochloris marina is one of the cyanobacterial species that can use far-red light to drive photochemical reactions for oxygenic photosynthesis. Here, we report the structure of A. marina photosystem I (PSI) reaction center, determined by cryo-electron microscopy at 2.58 Å resolution. The structure reveals an arrangement of electron carriers and light-harvesting pigments distinct from other type I reaction centers. The paired chlorophyll, or special pair (also referred to as P740 in this case), is a dimer of chlorophyll d and its epimer chlorophyll d′. The primary electron acceptor is pheophytin a, a metal-less chlorin. We show the architecture of this PSI reaction center is composed of 11 subunits and we identify key components that help explain how the low energy yield from far-red light is efficiently utilized for driving oxygenic photosynthesis. |
| 記述: | 赤外光駆動型光合成をクライオ電顕で捉えることに成功 --低いエネルギーで通常の光化学反応が駆動される仕組み--. 京都大学プレスリリース. 2021-04-21. |
| 著作権等: | © The Author(s) 2021 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. |
| URI: | http://hdl.handle.net/2433/262727 |
| DOI(出版社版): | 10.1038/s41467-021-22502-8 |
| PubMed ID: | 33879791 |
| 関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2021-04-21 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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