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Science 30 April 1993:
Vol. 260. no. 5108, pp. 675 - 679
DOI: 10.1126/science.8480177
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Articles

Science, Vol 260, Issue 5108, 675-679
Copyright © 1993 by American Association for the Advancement of Science

articles

Where plants make oxygen: a structural model for the photosynthetic oxygen-evolving manganese cluster

VK Yachandra, VJ DeRose, MJ Latimer, I Mukerji, K Sauer, and MP Klein

Structural Biology Division, Lawrence Berkeley Laboratory, University of California, Berkeley 94720.

In the photosynthetic evolution of oxygen, water oxidation occurs at a catalytic site that includes four manganese atoms together with the essential cofactors, the calcium and chlorine ions. A structural model and a determination of the manganese oxidation states based on x-ray absorption spectroscopy are presented. The salient features, in both higher plants and cyanobacteria, are a pair of di-mu-oxo bridged manganese binuclear clusters linked by a mono-mu-oxo bridge, one proximal calcium atom, and one halide. In dark-adapted samples, manganese occurs in oxidation states (III) and (IV). Data from oriented membranes display distinct dichroism, precluding highly symmetrical structures for the manganese complex.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
QM/MM computational studies of substrate water binding to the oxygen-evolving centre of photosystem II.
E. M Sproviero, K. Shinopoulos, J. A Gascon, J. P McEvoy, G. W Brudvig, and V. S Batista (2008)
Phil Trans R Soc B 363, 1149-1156
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Focusing the view on nature's water-splitting catalyst.
S. Zein, L. V Kulik, J. Yano, J. Kern, Y. Pushkar, A. Zouni, V. K Yachandra, W. Lubitz, F. Neese, and J. Messinger (2008)
Phil Trans R Soc B 363, 1167-1177
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Using small molecule complexes to elucidate features of photosynthetic water oxidation.
K. Meelich, C. M Zaleski, and V. L Pecoraro (2008)
Phil Trans R Soc B 363, 1271-1281
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Structure and Orientation of the Mn4Ca Cluster in Plant Photosystem II Membranes Studied by Polarized Range-extended X-ray Absorption Spectroscopy.
Y. Pushkar, J. Yano, P. Glatzel, J. Messinger, A. Lewis, K. Sauer, U. Bergmann, and V. Yachandra (2007)
J. Biol. Chem. 282, 7198-7208
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From the Cover: X-ray damage to the Mn4Ca complex in single crystals of photosystem II: A case study for metalloprotein crystallography.
J. Yano, J. Kern, K.-D. Irrgang, M. J. Latimer, U. Bergmann, P. Glatzel, Y. Pushkar, J. Biesiadka, B. Loll, K. Sauer, et al. (2005)
PNAS 102, 12047-12052
   Abstract »    Full Text »    PDF »
A Two-Component Mn2+-Sensing System Negatively Regulates Expression of the mntCAB Operon in Synechocystis.
K. Yamaguchi, I. Suzuki, H. Yamamoto, A. Lyukevich, I. Bodrova, D. A. Los, I. Piven, V. Zinchenko, M. Kanehisa, and N. Murata (2002)
PLANT CELL 14, 2901-2913
   Abstract »    Full Text »    PDF »
Alterations in Carboxylate Ligation at the Active Site of Photosystem II.
J. J. Steenhuis, R. S. Hutchison, and B. A. Barry (1999)
J. Biol. Chem. 274, 14609-14616
   Abstract »    Full Text »    PDF »
A Functional Model for O-O Bond Formation by the O2-Evolving Complex in Photosystem II.
J. Limburg, J. S. Vrettos, L. M. Liable-Sands, A. L. Rheingold, R. H. Crabtree, and G. W. Brudvig (1999)
Science 283, 1524-1527
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