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Substrate water interactions within the photosystem II oxygen evolving complex

Hillier, Warwick; Wydrzynski, Thomas


The 18O exchange rates for the substrate water in photosystem II can be obtained by time-resolved mass spectrometric approaches and provide insight into the chemical nature of the substrate binding sites in the oxygen evolving complex (OEC). In this communication, we report additional data on the resolvable S-state dependence of the substrate exchange rates in untreated spinach thylakoids. The data reveals that the exchange for one substrate water molecule is resolvable in all S states, i.e. S0...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Physical Chemistry Chemical Physics
DOI: 10.1039/b407269c


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