Electronic structure of the oxygen evolving complex in photosystem II, as revealed by 55 Mn Davies ENDOR studies at 2.5 K
We report the first 55Mn pulsed ENDOR studies on the S 2 state multiline spin centre of the oxygen evolving complex (OEC) in Photosystem II (PS II), at temperatures below 4.2 K. These were performed on highly active samples of spinach PS II core complexes, developed previously in our laboratories for photosystem spectroscopic use, at temperatures down to 2.5 K. Under these conditions, relaxation effects which have previously hindered observation of most of the manganese ENDOR resonances from...[Show more]
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|Source:||Physical Chemistry Chemical Physics|
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