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Crystal structure of photosystem II from Synechococcus elongatus at 3.8 Å resolution

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  • Athina Zouni

    (Max-Volmer-Institut für Biophysikalische Chemie und Biochemie, Technische Universität Berlin)

  • Horst-Tobias Witt

    (Max-Volmer-Institut für Biophysikalische Chemie und Biochemie, Technische Universität Berlin)

  • Jan Kern

    (Max-Volmer-Institut für Biophysikalische Chemie und Biochemie, Technische Universität Berlin)

  • Petra Fromme

    (Max-Volmer-Institut für Biophysikalische Chemie und Biochemie, Technische Universität Berlin)

  • Norbert Krauss

    (Institut für Chemie, Kristallographie, Freie Universität Berlin)

  • Wolfram Saenger

    (Institut für Chemie, Kristallographie, Freie Universität Berlin)

  • Peter Orth

    (Institut für Chemie, Kristallographie, Freie Universität Berlin)

Abstract

Oxygenic photosynthesis is the principal energy converter on earth. It is driven by photosystems I and II, two large protein–cofactor complexes located in the thylakoid membrane and acting in series. In photosystem II, water is oxidized; this event provides the overall process with the necessary electrons and protons, and the atmosphere with oxygen. To date, structural information on the architecture of the complex has been provided by electron microscopy of intact, active photosystem II at 15–30 Å resolution1, and by electron crystallography on two-dimensional crystals of D1-D2-CP47 photosystem II fragments without water oxidizing activity at 8 Å resolution2. Here we describe the X-ray structure of photosystem II on the basis of crystals fully active in water oxidation3. The structure shows how protein subunits and cofactors are spatially organized. The larger subunits are assigned and the locations and orientations of the cofactors are defined. We also provide new information on the position, size and shape of the manganese cluster, which catalyzes water oxidation.

Suggested Citation

  • Athina Zouni & Horst-Tobias Witt & Jan Kern & Petra Fromme & Norbert Krauss & Wolfram Saenger & Peter Orth, 2001. "Crystal structure of photosystem II from Synechococcus elongatus at 3.8 Å resolution," Nature, Nature, vol. 409(6821), pages 739-743, February.
    • Handle: RePEc:nat:nature:v:409:y:2001:i:6821:d:10.1038_35055589
    DOI: 10.1038/35055589
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    Cited by:

    1. Xuelei Pan & Mengyu Yan & Qian Liu & Xunbiao Zhou & Xiaobin Liao & Congli Sun & Jiexin Zhu & Callum McAleese & Pierre Couture & Matthew K. Sharpe & Richard Smith & Nianhua Peng & Jonathan England & Sh, 2024. "Electric-field-assisted proton coupling enhanced oxygen evolution reaction," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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