論文

査読有り 最終著者 責任著者 国際誌
2021年12月

Structure of the far-red light utilizing photosystem I of Acaryochloris marina

Nature Communications
  • Tasuku Hamaguchi
  • ,
  • Keisuke Kawakami
  • ,
  • Kyoko Shinzawa-Itoh
  • ,
  • Natsuko Inoue-Kashino
  • ,
  • Shigeru Itoh
  • ,
  • Kentaro Ifuku
  • ,
  • Eiki Yamashita
  • ,
  • Kou Maeda
  • ,
  • Koji Yonekura
  • ,
  • Yasuhiro Kashino

12
1
開始ページ
2333
終了ページ
2333
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1038/s41467-021-22502-8
出版者・発行元
Springer Science and Business Media LLC

<title>Abstract</title><italic>Acaryochloris marina</italic> 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 <italic>A. marina</italic> 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 <italic>d</italic> and its epimer chlorophyll <italic>d</italic>′. The primary electron acceptor is pheophytin <italic>a</italic>, 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.

リンク情報
DOI
https://doi.org/10.1038/s41467-021-22502-8
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/33879791
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8058080
URL
http://www.nature.com/articles/s41467-021-22502-8.pdf
URL
http://www.nature.com/articles/s41467-021-22502-8
ID情報
  • DOI : 10.1038/s41467-021-22502-8
  • eISSN : 2041-1723
  • PubMed ID : 33879791
  • PubMed Central 記事ID : PMC8058080

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