Structural basis of photosynthetic water-splitting

Jian-Ren Shen, Yasufumi Umena, Keisuke Kawakami, Nobuo Kamiya

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Photosynthetic water-splitting takes place in photosystem II (PSII), a membrane protein complex consisting of 20 subunits with an overall molecular mass of 350 kDa. The light-induced water-splitting reaction catalyzed by PSII not only converts light energy into biologically useful chemical energy, but also provides us with oxygen indispensible for sustaining oxygenic life on the earth. We have solved the structure of PSII at a 1.9 Å resolution, from which, the detailed structure of the Mn4CaO5-cluster, the catalytic center for water-splitting, became clear. Based on the structure of PSII at the atomic resolution, possible mechanism of light-induced water-splitting was discussed.

    Original languageEnglish
    Title of host publicationSolar Chemical Energy Storage, SolChES 2012
    PublisherAmerican Institute of Physics Inc.
    Pages31-34
    Number of pages4
    Volume1568
    ISBN (Electronic)9780735411968
    DOIs
    Publication statusPublished - 2013
    Event1st International Workshop on Solar Chemical Energy Storage, SolChES 2012 - Sendai, Japan
    Duration: Jul 23 2012Jul 28 2012

    Other

    Other1st International Workshop on Solar Chemical Energy Storage, SolChES 2012
    Country/TerritoryJapan
    CitySendai
    Period7/23/127/28/12

    Keywords

    • Light-energy conversion.
    • Oxygen evolution
    • Photosynthesis
    • Photosystem
    • Water-splitting

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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