Delayed Rectifier Potassium ChannelsPotassium Channels, Inwardly RectifyingPotassium ChannelsPotassiumPotassium Channels, Voltage-GatedPotassium Channel BlockersBarium CompoundsAndersen SyndromeIon Channel GatingMembrane PotentialsEther-A-Go-Go Potassium ChannelsPatch-Clamp TechniquesG Protein-Coupled Inwardly-Rectifying Potassium ChannelsShab Potassium ChannelsIon ChannelsOocytesElectric ConductivityElectrophysiologyBariumXenopusShaker Superfamily of Potassium ChannelsKCNQ1 Potassium ChannelCesiumTetraethylammoniumAction PotentialsKv1.5 Potassium ChannelShaw Potassium ChannelsKv1.3 Potassium ChannelXenopus laevisKCNQ Potassium ChannelsKv1.2 Potassium ChannelCalcium ChannelsPotassium Channels, Calcium-ActivatedKv1.1 Potassium Channel4-AminopyridineKv1.4 Potassium ChannelKineticsLarge-Conductance Calcium-Activated Potassium ChannelsMolecular Sequence DataAmino Acid SequencePotassium Channels, Tandem Pore DomainCalcium Channel BlockersKCNQ2 Potassium ChannelShal Potassium ChannelsGuinea PigsKATP ChannelsTetraethylammonium CompoundsKCNQ3 Potassium ChannelAnti-Arrhythmia AgentsCalcium Channels, L-TypeSodiumPotassium, DietaryCalciumGlyburideSmall-Conductance Calcium-Activated Potassium ChannelsCloning, MolecularChloride ChannelsHeart VentriclesPotassium ChloridePotassium DeficiencyMyocardiumTransfectionLong QT SyndromePotassium CompoundsNeuronsDose-Response Relationship, DrugHeartIon TransportMyocytes, CardiacVentricular FunctionCharybdotoxinQuinidineRNA, MessengerScorpion VenomsChloridesCromakalimPotassium IsotopesIntermediate-Conductance Calcium-Activated Potassium ChannelsCells, CulturedRats, Sprague-DawleyHeart AtriaCell MembraneLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsSulfonylurea ReceptorsSodium Channel BlockersRabbitsPinacidilElectric StimulationTetrodotoxinPhenethylaminesAdenosine TriphosphateTime FactorsMutationPiperidinesModels, BiologicalApaminCell LineBenzopyransCHO CellsDogs