2024
Photochemical Oxidation of Substrate Water Analogs and Halides by Photosystem II
Shin J, Kanyo J, Debus R, Brudvig G. Photochemical Oxidation of Substrate Water Analogs and Halides by Photosystem II. Advanced Energy Materials 2024, 14 DOI: 10.1002/aenm.202401292.Peer-Reviewed Original ResearchWater oxidation catalysisRedox-active cofactorsOxidation catalysisWater oxidationSubstrate photooxidationProtein-pigment complexesRedox chemistryPhotochemical reductionSubstrate waterNative PSIISmall moleculesO 2 evolutionHalidesO-2ChloridePhotooxidationPhotochemical oxidationPSII complexesBound chlorideKinetic profilesPhotosystem IISubstratePutative water channelsCatalystCatalysis
2000
Assignment of the Q y Absorbance Bands of Photosystem II Chromophores by Low-Temperature Optical Spectroscopy of Wild-Type and Mutant Reaction Centers †
Stewart D, Nixon P, Diner B, Brudvig G. Assignment of the Q y Absorbance Bands of Photosystem II Chromophores by Low-Temperature Optical Spectroscopy of Wild-Type and Mutant Reaction Centers †. Biochemistry 2000, 39: 14583-14594. PMID: 11087414, DOI: 10.1021/bi001246j.Peer-Reviewed Original ResearchMeSH KeywordsBacteriochlorophyllsBenzoquinonesCold TemperatureCyanobacteriaElectron Spin Resonance SpectroscopyFree RadicalsFreezingGlutamineHistidineLight-Harvesting Protein ComplexesMutagenesis, Site-DirectedOxidation-ReductionPhotosynthetic Reaction Center Complex ProteinsPhotosystem II Protein ComplexSpectrophotometryTyrosineConceptsAbsorbance bandPhotosystem IIHydrogen bonding environmentOptical spectroscopyReaction center chromophoresRedox-active cofactorsDouble difference spectraLow temperature optical spectroscopyNumber of chromophoresRedox-active quinonesMutant reaction centersRedox stateRC chromophoresAxial ligandsCryogenic optical spectroscopyChromophore positionProtein environmentPSII preparationsSpectral assignmentsElectrochromic effectAccessory ChlElectronic structureChromophoreChromophore interactionsPhotosynthetic RCs