PlastocyaninElectron TransportFerredoxinsCytochromes fElectronsFerredoxin-NADP ReductaseOxidation-ReductionPhotosystem I Protein ComplexPhotosynthetic Reaction Center Complex ProteinsCytochromes c6CytochromesElectron Spin Resonance SpectroscopySpinacia oleraceaAzurinCytochrome c GroupMicroscopy, ElectronKineticsPlantsCyanobacteriaSpectrophotometryIron-Sulfur ProteinsCopperModels, MolecularPhotosynthesisChloroplastsCytochrome b6f ComplexElectron Transport Complex IIIEthyldimethylaminopropyl CarbodiimidePlant ProteinsFerricyanidesAmino Acid SequenceSpectrum AnalysisMicroscopy, Electron, ScanningMolecular Sequence DataChlorophyllElectron-Transferring FlavoproteinsNostocProchlorothrixFlavodoxinElectrochemistryProtein ConformationHemeOxidoreductasesChlorophytaChlamydomonas reinhardtiiStatic ElectricityElectron Transport Complex IVMetalloproteinsAnabaenaRhodobacter sphaeroidesFlavinsCytochrome b GroupFlavoproteinsLightHydrogen-Ion ConcentrationFlavin-Adenine DinucleotideLight-Harvesting Protein ComplexesBacterial ProteinsBinding SitesNADPProtonsFlavin MononucleotideSulfurThylakoidsAdrenodoxinModels, ChemicalSpectrophotometry, UltravioletMutagenesis, Site-DirectedThermodynamicsClostridiumUbiquinoneRutheniumPhotosystem II Protein ComplexNADH, NADPH OxidoreductasesDithionitePlastoquinoneEscherichia coliGene Transfer TechniquesOxygenIronProtein BindingNADPH-Ferrihemoprotein ReductaseHydrogenCrystallography, X-RayPhotolysisQuinonesPotentiometryPhotochemistryDesulfovibrioCatalysisPulse RadiolysisPhotochemical ProcessesParacoccus denitrificansMutationSequence Homology, Amino AcidMicroscopy, Electron, TransmissionBase SequenceSulfite Reductase (Ferredoxin)RubredoxinsHydrogenase