Volume 89 Issue 32 | p. 39 | Concentrates
Issue Date: August 8, 2011

Model Cluster Yields Clues On Calcium’s Water-Splitting Role

Department: Science & Technology
News Channels: Biological SCENE, Materials SCENE
Keywords: photosynthesis, photosystem II, oxygen-evolving complex, water-splitting

A synthetic model of the manganese-calcium cluster at the heart of the oxygen-evolving complex, a component of the photosystem II protein complex that guides photosynthesis, suggests how calcium is critical to the cluster’s ability to oxidize water to form O2 in plants, algae, and cyanobacteria (Science, DOI: 10.1126/science.1206036). Scientists have tried to develop a model of the Mn4CaOn cluster to understand how it works and design artificial photosynthetic systems. The cluster is likely composed . . .

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