H(+)-K(+)-Exchanging ATPaseProton PumpsProton Pump InhibitorsStomachOmeprazoleProtonsSodium-Potassium-Exchanging ATPase2-PyridinylmethylsulfinylbenzimidazolesProton-Translocating ATPasesAnti-Ulcer AgentsLansoprazoleVacuolar Proton-Translocating ATPasesAdenosine TriphosphatasesHistamine H2 AntagonistsHydrogen-Ion ConcentrationSulfoxidesRabeprazoleGastroesophageal RefluxCalcium-Transporting ATPasesGastric AcidEsomeprazoleAdenosine TriphosphateRhodopsins, MicrobialBacteriorhodopsinsIon PumpsKineticsBenzimidazolesDicyclohexylcarbodiimideVacuolesAntacidsHelicobacter pyloriHelicobacter InfectionsPeptic UlcerGastric Acidity DeterminationMagnetic Resonance SpectroscopyOuabainCell MembraneProton-Motive ForceBiological Transport, ActiveAmoxicillinHalobacterium salinarumElectron Transport Complex IVHeartburnMolecular Sequence DataValinomycinClarithromycinInfusion PumpsPotassiumAmino Acid SequenceHydrolysisEnzyme InhibitorsMacrolidesRanitidineSodiumProtein ConformationBiological TransportVanadatesModels, MolecularCalciumSarcoplasmic ReticulumBismuthBinding SitesPeptic Ulcer HemorrhageEsophagitis, PepticOligomycinsAnti-Bacterial AgentsEsophagitisRabbitsDyspepsiaVanadiumGastric MucosaMutationGastrointestinal DiseasesInorganic PyrophosphataseHalobacteriumDrug Therapy, CombinationIon TransportNigericinStomach UlcerEscherichia coliMembrane PotentialsSchiff BasesAspartic AcidMagnesiumEthylmaleimideEndoscopy, Gastrointestinal