Microscopy, ElectronElectronsMicroscopy, Electron, ScanningElectron TransportMicroscopy, Electron, TransmissionElectron Spin Resonance SpectroscopyMicroscopy, Electron, Scanning TransmissionOxidation-ReductionElectron Probe MicroanalysisElectron Transport Complex IVKineticsElectron Transport Complex IIIMolecular Sequence DataModels, MolecularAmino Acid SequenceCryoelectron MicroscopyCell MembraneProtein ConformationMicroscopy, ImmunoelectronEscherichia coliOxidoreductasesElectron Transport Chain Complex ProteinsPhotosynthesisSpectrophotometryMutationCytochrome c GroupElectron Transport Complex IPhotosynthetic Reaction Center Complex ProteinsCytochromesBacterial ProteinsMitochondriaHydrogen-Ion ConcentrationOxygenSpin LabelsCattleFerredoxinsPhotosystem I Protein ComplexTime FactorsHistocytochemistryFerricyanidesTemperatureBinding SitesFreeze FracturingLightUbiquinoneStaining and LabelingProtein BindingBase SequenceSpectrum AnalysisModels, ChemicalHemeRabbitsElectrochemistryFree RadicalsHydrogenChlorophyllModels, BiologicalMolecular WeightX-Ray DiffractionElectrophoresis, Polyacrylamide GelIron-Sulfur ProteinsSurface PropertiesCell LineCytoplasmCrystallography, X-RayPhotosystem II Protein ComplexCells, CulturedProtonsFerric CompoundsIronRhodobacter sphaeroidesSpectroscopy, Electron Energy-LossPlastocyaninMicroscopy, Energy-Filtering Transmission ElectronFlavinsWaterHistological TechniquesAntimycin ACopperShewanellaElectron Transport Complex IIOrganoidsNegative StainingMembrane ProteinsElectron-Transferring FlavoproteinsGeobacterNADPProtein Structure, TertiaryFlavin-Adenine DinucleotideFreeze EtchingDiuronDNAImmunohistochemistryMolecular StructureMacromolecular SubstancesCytochrome b GroupGoldNADMicroscopy, FluorescenceMicroscopy, Phase-Contrast