Delayed Rectifier Potassium ChannelsPotassium Channels, Inwardly RectifyingPotassium ChannelsPotassium Channels, Voltage-GatedPotassium Channel BlockersPotassiumBarium CompoundsAndersen SyndromeEther-A-Go-Go Potassium ChannelsIon Channel GatingPatch-Clamp TechniquesMembrane PotentialsShab Potassium ChannelsG Protein-Coupled Inwardly-Rectifying Potassium ChannelsAction PotentialsIon ChannelsOocytesElectrophysiologyKCNQ1 Potassium ChannelElectric ConductivityBariumXenopusTetraethylammoniumCesiumKv1.5 Potassium ChannelShaker Superfamily of Potassium ChannelsShaw Potassium ChannelsKCNQ Potassium ChannelsXenopus laevisKv1.3 Potassium ChannelCalcium Channels4-AminopyridineLong QT SyndromePotassium Channels, Calcium-ActivatedKv1.1 Potassium ChannelKv1.2 Potassium ChannelAnti-Arrhythmia AgentsVentricular FunctionHeart Conduction SystemHeart VentriclesGuinea PigsKv1.4 Potassium ChannelKineticsMolecular Sequence DataCalcium Channel BlockersShal Potassium ChannelsLarge-Conductance Calcium-Activated Potassium ChannelsAmino Acid SequenceKATP ChannelsElectrocardiographyHeartCalcium Channels, L-TypeTetraethylammonium CompoundsArrhythmias, CardiacPotassium Channels, Tandem Pore DomainTorsades de PointesKCNQ2 Potassium ChannelMyocytes, CardiacKCNQ3 Potassium ChannelMyocardiumCalciumQuinidineCloning, MolecularDogsGlyburideChloride ChannelsSmall-Conductance Calcium-Activated Potassium ChannelsSotalolPhenethylaminesHeart AtriaSodiumTransfectionDose-Response Relationship, DrugRabbitsSodium Channel BlockersCharybdotoxinIon TransportRNA, MessengerCells, CulturedNeuronsAtrial FunctionScorpion VenomsPiperidinesTime FactorsCromakalimElectric StimulationRats, Sprague-DawleyChloridesPinacidilIntermediate-Conductance Calcium-Activated Potassium ChannelsTetrodotoxinSulfonylurea ReceptorsCell MembraneSinoatrial NodeSulfonamidesModels, CardiovascularApaminPotassium ChlorideMutationCisapride