IDEAS home Printed from https://ideas.repec.org/a/nat/nature/v426y2003i6967d10.1038_nature02200.html
   My bibliography  Save this article

Crystal structure of plant photosystem I

Author

Listed:
  • Adam Ben-Shem

    (The George S. Wise Faculty of Life Sciences, Tel Aviv University)

  • Felix Frolow

    (The George S. Wise Faculty of Life Sciences, Tel Aviv University)

  • Nathan Nelson

    (The George S. Wise Faculty of Life Sciences, Tel Aviv University)

Abstract

Oxygenic photosynthesis is the principal producer of both oxygen and organic matter on Earth. The conversion of sunlight into chemical energy is driven by two multisubunit membrane protein complexes named photosystem I and II. We determined the crystal structure of the complete photosystem I (PSI) from a higher plant (Pisum sativum var. alaska) to 4.4 Å resolution. Its intricate structure shows 12 core subunits, 4 different light-harvesting membrane proteins (LHCI) assembled in a half-moon shape on one side of the core, 45 transmembrane helices, 167 chlorophylls, 3 Fe–S clusters and 2 phylloquinones. About 20 chlorophylls are positioned in strategic locations in the cleft between LHCI and the core. This structure provides a framework for exploration not only of energy and electron transfer but also of the evolutionary forces that shaped the photosynthetic apparatus of terrestrial plants after the divergence of chloroplasts from marine cyanobacteria one billion years ago.

Suggested Citation

  • Adam Ben-Shem & Felix Frolow & Nathan Nelson, 2003. "Crystal structure of plant photosystem I," Nature, Nature, vol. 426(6967), pages 630-635, December.
    • Handle: RePEc:nat:nature:v:426:y:2003:i:6967:d:10.1038_nature02200
    DOI: 10.1038/nature02200
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/nature02200
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1038/nature02200?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Xiuxiu Li & Guoqiang Huang & Lixia Zhu & Chenyang Hao & Sen-Fang Sui & Xiaochun Qin, 2024. "Structure of the red-shifted Fittonia albivenis photosystem I," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    2. Makiko Kosugi & Masato Kawasaki & Yutaka Shibata & Kojiro Hara & Shinichi Takaichi & Toshio Moriya & Naruhiko Adachi & Yasuhiro Kamei & Yasuhiro Kashino & Sakae Kudoh & Hiroyuki Koike & Toshiya Senda, 2023. "Uphill energy transfer mechanism for photosynthesis in an Antarctic alga," Nature Communications, Nature, vol. 14(1), pages 1-14, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:nature:v:426:y:2003:i:6967:d:10.1038_nature02200. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.