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Rationalizing the Geometries of the Water Oxidising Complex in the Atomic Resolution, Nominal S3 State Crystal Structures of Photosystem II

Petrie, Simon; Terrett, Richard; Stranger, Robert; Pace, Ronald

Description

Three atomic resolution crystal structures of Photosystem II, in the double flashed, nominal S3 intermediate state of its Mn4Ca Water Oxidising Complex (WOC), have now been presented, at 2.25, 2.35 and 2.08 Å resolution. Although very similar overall, the S3 structures differ within the WOC catalytic site. The 2.25 Å structure contains only one oxy species (O5) in the WOC cavity, weakly associated with Mn centres, similar to that in the earlier 1.95 Å S1 structure. The 2.35 Å structure shows...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
URI: http://hdl.handle.net/1885/311788
Source: ChemPhysChem
DOI: 10.1002/cphc.201901106

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