"When generating structures from crystallographic data, one should ignore whatever inferences may have been drawn about them using noncrystallographic techniques if possible" #PhotosystemII #LowOxidationParadigm #HighOxidationParadigm https://t.co/VOYEqAgl7D
Photosystem II: light-dependent oscillation of ligand composition at its active site

Analysis of light-dependent changes in the number of oxygen ligands in the CaMn4 cluster of the oxygen-evolving center suggests a possible mechanism for O&z-dbnd;O bond formation by photosystem II.

Acta Crystallographica Section D