Structural basis of photosynthetic water-splitting

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

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


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
EditorsKatsushi Fujii, Masakazu Sugiyama, Shin Nakamura
PublisherAmerican Institute of Physics Inc.
Number of pages4
ISBN (Electronic)9780735411968
Publication statusPublished - 2013
Event1st International Workshop on Solar Chemical Energy Storage, SolChES 2012 - Sendai, Japan
Duration: Jul 23 2012Jul 28 2012

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Other1st International Workshop on Solar Chemical Energy Storage, SolChES 2012


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

ASJC Scopus subject areas

  • General Physics and Astronomy


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