Delayed Rectifier Potassium ChannelsPotassium Channels, Inwardly RectifyingPotassium ChannelsPotassium Channels, Voltage-GatedPotassium Channel BlockersPotassiumBarium CompoundsAndersen SyndromeEther-A-Go-Go Potassium ChannelsIon Channel GatingPatch-Clamp TechniquesMembrane PotentialsG Protein-Coupled Inwardly-Rectifying Potassium ChannelsShab Potassium ChannelsOocytesIon ChannelsXenopusBariumElectric ConductivityCesiumKCNQ1 Potassium ChannelElectrophysiologyTetraethylammoniumKv1.5 Potassium ChannelShaker Superfamily of Potassium ChannelsShaw Potassium ChannelsAction PotentialsXenopus laevisKCNQ Potassium ChannelsKv1.3 Potassium ChannelCalcium ChannelsKv1.2 Potassium ChannelKv1.1 Potassium ChannelMolecular Sequence DataPotassium Channels, Calcium-ActivatedAmino Acid Sequence4-AminopyridineKv1.4 Potassium ChannelKineticsLarge-Conductance Calcium-Activated Potassium ChannelsCalcium Channel BlockersKATP ChannelsGuinea PigsPotassium Channels, Tandem Pore DomainKCNQ2 Potassium ChannelCloning, MolecularShal Potassium ChannelsAnti-Arrhythmia AgentsKCNQ3 Potassium ChannelCalcium Channels, L-TypeTetraethylammonium CompoundsChloride ChannelsGlyburideSmall-Conductance Calcium-Activated Potassium ChannelsHeart VentriclesTransfectionLong QT SyndromeMyocardiumRNA, MessengerMyocytes, CardiacCalciumHeartDose-Response Relationship, DrugVentricular FunctionQuinidineSodiumNeuronsCells, CulturedIon TransportCharybdotoxinCromakalimScorpion VenomsHeart AtriaIntermediate-Conductance Calcium-Activated Potassium ChannelsSulfonylurea ReceptorsRabbitsPhenethylaminesRats, Sprague-DawleyCell MembraneSodium Channel BlockersPinacidilLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsPiperidinesChloridesMutationPotassium ChlorideAdenosine TriphosphatePotassium, DietaryCell LineCHO CellsBenzopyransDogsElectric StimulationSinoatrial NodeModels, BiologicalCalcium Channels, N-TypeTime FactorsApaminTetrodotoxinReceptors, Drug