Oxidation-ReductionWaterPhotosystem II Protein ComplexManganeseOxygenPhotosynthesisCatalysisManganese CompoundsPhotosynthetic Reaction Center Complex ProteinsSpinacia oleraceaKineticsTin CompoundsProtonsElectron Spin Resonance SpectroscopyModels, ChemicalElectron TransportSolar EnergyOrganometallic CompoundsIronHydrogen PeroxideMolecular StructurePalladiumCopperSpectrophotometryRutheniumCyanobacteriaModels, MolecularCysteinyldopaHydrogenOxidantsHydrogen-Ion ConcentrationWater SupplyElectronsPeroxidasesOxidesChlorophyllFree RadicalsOxidoreductasesElectrochemical TechniquesThylakoidsHydroxylationNADSpectrophotometry, UltravioletAlkenesMagnetic Resonance SpectroscopyCytochrome P-450 Enzyme SystemAlcohol OxidoreductasesChromatography, High Pressure LiquidSpectroscopy, Fourier Transform InfraredFresh WaterDeuteriumMass SpectrometrySubstrate SpecificityPhosphinesStereoisomerismSulfhydryl CompoundsSpectrum AnalysisBody WaterLight-Harvesting Protein ComplexesTemperatureSpectroscopy, MossbauerSpectrometry, Mass, Electrospray IonizationHemeElectrodesSulfurTyrosineBinding SitesWater Pollutants, ChemicalWater PurificationThermodynamicsMolecular Sequence DataHydrogen BondingCytochrome b GroupX-Ray Absorption SpectroscopyCysteineIron-Sulfur ProteinsWater PollutionFatty AcidsEscherichia coliVanadiumMyoglobinBacterial ProteinsMicrosomes, LiverHemeproteinsX-RaysReducing AgentsPeroxidesElectrochemistrySulfur CompoundsChemistry, BioinorganicGlutathioneIron CompoundsProstaglandins GCyanidesLightSpectrometry, X-Ray EmissionSulfidesFerrous CompoundsArsenicChromatium