2024
An analysis of the structural changes of the oxygen evolving complex of Photosystem II in the S1 and S3 states revealed by serial femtosecond crystallography
Yehia S, Wang J, Brudvig G, Gunner M, Brooks B, Amin M. An analysis of the structural changes of the oxygen evolving complex of Photosystem II in the S1 and S3 states revealed by serial femtosecond crystallography. Biochimica Et Biophysica Acta (BBA) - Bioenergetics 2024, 1866: 149531. PMID: 39694218, DOI: 10.1016/j.bbabio.2024.149531.Peer-Reviewed Original ResearchX-ray crystallographyMn coordinationReaction mechanismEfficient solar energy conversionFemtosecond X-ray crystallographyWater splitting reactionX-raySolar energy conversionElectronic structure changesCoordination chemistrySplitting reactionOxygen-evolving complexArtificial catalystsReaction intermediatesPhotosystem IICatalytic intermediatesWater moleculesOxidation stateFemtosecond crystallographyUltra-short laser pulsesOxidation intermediatesCrystallographyS3 stateStructural changesNatural catalysts
2016
S3 State of the O2‑Evolving Complex of Photosystem II: Insights from QM/MM, EXAFS, and Femtosecond X‑ray Diffraction
Askerka M, Wang J, Vinyard DJ, Brudvig GW, Batista VS. S3 State of the O2‑Evolving Complex of Photosystem II: Insights from QM/MM, EXAFS, and Femtosecond X‑ray Diffraction. Biochemistry 2016, 55: 981-984. PMID: 26849148, DOI: 10.1021/acs.biochem.6b00041.Peer-Reviewed Original ResearchConceptsExtended X-ray absorption fine structureFemtosecond x-ray diffractionX-ray diffractionOxygen-evolving complexS3 stateHybrid quantum mechanics/molecular mechanics (QM/MM) methodX-ray absorption fine structureQuantum mechanics/molecular mechanics methodsAbsorption fine structureQM/MMPhotosystem IIMolecular mechanics methodElectron paramagnetic resonanceWater ligandsS3 transitionAmmonia bindingParamagnetic resonanceFine structureMechanics methodDiffractionComplexesStateResonanceLigandsMn4