ProtonsProton PumpsMicroscopy, ElectronElectronsElectron TransportMicroscopy, Electron, ScanningProton Pump InhibitorsMicroscopy, Electron, TransmissionElectron Spin Resonance SpectroscopyMagnetic Resonance SpectroscopyHydrogen-Ion ConcentrationProton-Motive ForceOxidation-ReductionElectron Transport Complex IVKineticsModels, MolecularMicroscopy, Electron, Scanning TransmissionHydrogenProtein ConformationWaterBacteriorhodopsinsProton-Translocating ATPasesElectron Probe MicroanalysisAspartic AcidElectron Transport Complex IIIRhodobacter sphaeroidesVacuolar Proton-Translocating ATPasesModels, ChemicalMolecular Sequence DataCell MembraneHydrogen BondingElectrochemistryLightCreatineEscherichia coliBinding SitesSpectrophotometryDicyclohexylcarbodiimideAmino Acid SequenceOxygenHemeThermodynamicsValinomycinOxidoreductasesElectron Transport Complex IBacterial ProteinsPhotosynthesisTemperaturePhotosynthetic Reaction Center Complex ProteinsCatalysisCytochrome c GroupAdenosine TriphosphateMitochondriaCytochromesCholineMutationCattleHistidineUbiquinoneElectron Transport Chain Complex Proteins2-PyridinylmethylsulfinylbenzimidazolesBiological TransportCrystallography, X-RayMolecular StructureSchiff BasesModels, BiologicalQuantum TheoryCryoelectron MicroscopyMolecular ConformationHalobacterium salinarumSpectrum AnalysisNigericinDeuteriumOxygen ConsumptionHalobacteriumSpin LabelsOmeprazoleParacoccus denitrificansMembrane PotentialsMicroscopy, ImmunoelectronStatic ElectricityFerredoxinsProtein BindingIonsIon ChannelsCarbonyl Cyanide p-TrifluoromethoxyphenylhydrazoneSpectroscopy, Fourier Transform InfraredPhotosystem II Protein ComplexUncoupling AgentsTime FactorsBiological Transport, ActiveArylsulfonatesAnti-Ulcer AgentsVacuolesIon TransportMutagenesis, Site-DirectedSolutionsPhotosystem I Protein ComplexQuinonesOxidative Phosphorylation