OuabainSodium-Potassium-Exchanging ATPaseChromatography, AffinitySodiumPotassiumCardiac GlycosidesAntibody AffinityKineticsAffinity LabelsBinding SitesProtein BindingBiological Transport, ActiveMolecular Sequence DataDigoxinBinding, CompetitiveAmino Acid SequenceRubidiumCalciumDigitoxinLigandsCell MembraneModels, MolecularRabbitsRubidium RadioisotopesGuinea PigsRecombinant ProteinsSodium IsotopesCell LineBase SequenceStructure-Activity RelationshipDose-Response Relationship, DrugSaponinsCardiotonic AgentsBiological TransportDigitalis GlycosidesLithiumStrophanthinsProtein ConformationBufanolidesHydrogen-Ion ConcentrationEthacrynic AcidEnzyme InhibitorsAdenosine TriphosphateMembrane PotentialsMagnesiumProtein Structure, TertiaryAdenosine TriphosphatasesCardanolidesRadioligand AssaySurface Plasmon ResonanceElectrophoresis, Polyacrylamide GelCarrier ProteinsMutagenesis, Site-DirectedCells, CulturedAmilorideSubstrate SpecificityTritiumCattlePotassium IsotopesMolecular WeightMutationErythrocytesGuanabenzMyocardiumReceptors, DrugDogsEscherichia coliPeptidesRecombinant Fusion ProteinsCloning, MolecularSequence Homology, Amino AcidBumetanideDNATemperatureSepharoseCricetinaePeptide FragmentsRats, Inbred StrainsKidneyMacromolecular SubstancesFurosemideMyocardial ContractionCell Membrane PermeabilityRats, Sprague-DawleySpectrometry, FluorescenceReceptors, Cell Surface