2024
Mutation-induced shift of the photosystem II active site reveals insight into conserved water channels
Flesher D, Liu J, Wang J, Gisriel C, Yang K, Batista V, Debus R, Brudvig G. Mutation-induced shift of the photosystem II active site reveals insight into conserved water channels. Journal Of Biological Chemistry 2024, 300: 107475. PMID: 38879008, PMCID: PMC11294709, DOI: 10.1016/j.jbc.2024.107475.Peer-Reviewed Original ResearchOxygen-evolving complexPhotosystem II active sitePhotosystem IIJahn-Teller distortionPhotosystem II complexD1-Asp170Jahn-TellerResolution cryo-EM structureMutation-induced structural changesCryo-EM structureMagnetic propertiesD1 subunitActive siteOxygenic photosynthesisMutagenesis studiesLight-driven water oxidationSpectroscopic propertiesStructural basisSpectroscopic dataAmino acidsWater oxidation mechanismPhotosystemMutationsMutation-induced shiftWater oxidation
2011
S1-State Model of the O2-Evolving Complex of Photosystem II
Luber S, Rivalta I, Umena Y, Kawakami K, Shen JR, Kamiya N, Brudvig GW, Batista VS. S1-State Model of the O2-Evolving Complex of Photosystem II. Biochemistry 2011, 50: 6308-6311. PMID: 21678908, PMCID: PMC3139771, DOI: 10.1021/bi200681q.Peer-Reviewed Original ResearchConceptsHigh-resolution spectroscopic dataQuantum mechanics/molecular mechanics modelsExtended X-ray absorption fine structure (EXAFS) dataX-ray absorption fine structure dataFine structure dataPhotosystem IIX-ray diffraction modelOxygen-evolving complexDiffraction modelSingle crystalsMn clusterXRD modelMolecular mechanics modelIntermetallic distanceManganese centersSpectroscopic dataOxidation stateWater splittingCarboxylate moietyCatalytic cycleStructure dataLikely correspondsComplexesSplittingCrystals
2009
The MoD-QM/MM methodology for structural refinement of photosystem II and other biological macromolecules
Sproviero EM, Newcomer MB, Gascón JA, Batista ER, Brudvig GW, Batista VS. The MoD-QM/MM methodology for structural refinement of photosystem II and other biological macromolecules. Photosynthesis Research 2009, 102: 455-470. PMID: 19633920, PMCID: PMC2954272, DOI: 10.1007/s11120-009-9467-6.Peer-Reviewed Original ResearchConceptsElectrostatic interactionsMM methodQuantum mechanics/molecular mechanics (QM/MM) hybrid methodsForce fieldQM/MM hybrid methodsQM/MM methodologyQM/MM methodsMolecular mechanics force fieldQuantum chemistry techniquesMM force fieldsStructural refinementPhotosystem IIChemistry techniquesStructure/function relationsCharge transferQM layerMolecular fragmentsChemical modificationBiological macromoleculesSteric hindranceComputational protocolSpectroscopic dataMolecular domainsStructural propertiesHigh-resolution spectroscopic data
2008
A 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 acidsIonsComplexesCrystalsMnAcidStructure