2008
Computational insights into the O2-evolving complex of photosystem II
Sproviero EM, McEvoy JP, Gascón JA, Brudvig GW, Batista VS. Computational insights into the O2-evolving complex of photosystem II. Photosynthesis Research 2008, 97: 91-114. PMID: 18483777, PMCID: PMC2728911, DOI: 10.1007/s11120-008-9307-0.Peer-Reviewed Original ResearchConceptsOxygen-evolving complexX-ray diffractionQuantum mechanics/molecular mechanics (QM/MM) hybrid methodsPhotosystem IIMass spectrometryX-ray absorption fine structure spectroscopyExtended X-ray absorption fine structure (EXAFS) spectroscopyQM/MM modelingElectron paramagnetic resonance spectroscopyAbsorption fine structure spectroscopyCatalytic metal clustersWater splitting reactionIntermediate oxidation statesParamagnetic resonance spectroscopyFine structure spectroscopyO2-evolving complexDensity functional theoryInorganic coreMM modelingOxidation stateMetal clustersStructure spectroscopyOEC structureCrystallographic resultsComputational insightsA Model of the Oxygen-Evolving Center of Photosystem II Predicted by Structural Refinement Based on EXAFS Simulations
Sproviero EM, Gascón JA, McEvoy JP, Brudvig GW, Batista VS. A Model of the Oxygen-Evolving Center of Photosystem II Predicted by Structural Refinement Based on EXAFS Simulations. Journal Of The American Chemical Society 2008, 130: 6728-6730. PMID: 18457397, PMCID: PMC2678715, DOI: 10.1021/ja801979n.Peer-Reviewed Original ResearchConceptsOxygen-evolving complexSpectroscopic dataPhotosystem IIOxygen-Evolving CenterIntermediate oxidation statesHigh-resolution spectroscopic dataOxidation stateCatalytic cycleMetal clustersEXAFS simulationsPolarized EXAFSXRD modelStructural refinementEXAFSComputational structural modelsSingle crystalsStructural modelDanglerAmino acidsIonsComplexesCrystalsMnAcidStructureComputational studies of the O2-evolving complex of photosystem II and biomimetic oxomanganese complexes
Sproviero EM, Gascón JA, McEvoy JP, Brudvig GW, Batista VS. Computational studies of the O2-evolving complex of photosystem II and biomimetic oxomanganese complexes. Coordination Chemistry Reviews 2008, 252: 395-415. PMID: 19190716, PMCID: PMC2350217, DOI: 10.1016/j.ccr.2007.09.006.Peer-Reviewed Original ResearchBiomimetic oxomanganese complexesOxygen-evolving complexOxomanganese complexesWater oxidationPhotosystem IIQuantum mechanics/molecular mechanics (QM/MM) hybrid methodsCatalytic centerQM/MM modelCatalytic metal clustersPhotosynthetic water oxidationX-ray crystallographyX-ray absorption fine structure measurementsAbsorption fine structure measurementsQuantum mechanical studyO2-evolving complexX-ray diffraction dataAmino acid residuesExtended X-ray absorption fine structure (EXAFS) measurementsDetailed molecular levelComputational chemistsWater splittingCatalytic cycleComparative quantum mechanical studyMetal clustersFine structure measurements
2007
QM/MM computational studies of substrate water binding to the oxygen-evolving centre of photosystem II
Sproviero EM, Shinopoulos K, Gascn J, McEvoy JP, Brudvig GW, Batista VS. QM/MM computational studies of substrate water binding to the oxygen-evolving centre of photosystem II. Philosophical Transactions Of The Royal Society B Biological Sciences 2007, 363: 1149-1156. PMID: 17971333, PMCID: PMC2614095, DOI: 10.1098/rstb.2007.2210.Peer-Reviewed Original ResearchConceptsOxygen-evolving centerWater moleculesSubstrate waterElectrostatic potential atomic chargesQM/MM computational studiesPhotosystem IIComputational studyX-ray crystal structureCharge transfer interactionFormal oxidation stateCyanobacterium Thermosynechococcus elongatusDioxygen formationMetal centerModel complexesOxidation stateWater exchange rateAtomic chargesMetal clustersSubstrate moleculesMn ionsCrystal structureEnergy barrierThermosynechococcus elongatusManganese ionsWater binding