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 PotentialsKCNQ Potassium ChannelsXenopus laevisKv1.3 Potassium ChannelCalcium ChannelsKv1.2 Potassium ChannelKv1.1 Potassium ChannelPotassium Channels, Calcium-Activated4-AminopyridineMolecular Sequence DataKv1.4 Potassium ChannelAmino Acid SequenceKineticsLarge-Conductance Calcium-Activated Potassium ChannelsCalcium Channel BlockersKATP ChannelsGuinea PigsPotassium Channels, Tandem Pore DomainKCNQ2 Potassium ChannelShal Potassium ChannelsAnti-Arrhythmia AgentsKCNQ3 Potassium ChannelCalcium Channels, L-TypeTetraethylammonium CompoundsCloning, MolecularChloride ChannelsGlyburideSmall-Conductance Calcium-Activated Potassium ChannelsHeart VentriclesTransfectionLong QT SyndromeMyocardiumMyocytes, CardiacRNA, MessengerCalciumHeartDose-Response Relationship, DrugVentricular FunctionQuinidineSodiumNeuronsIon TransportCharybdotoxinCells, CulturedCromakalimHeart AtriaScorpion VenomsIntermediate-Conductance Calcium-Activated Potassium ChannelsSulfonylurea ReceptorsPhenethylaminesRats, Sprague-DawleyRabbitsSodium Channel BlockersPinacidilLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsPiperidinesCell MembranePotassium ChlorideChloridesPotassium, DietaryAdenosine TriphosphateMutationCHO CellsBenzopyransCell LineSinoatrial NodeElectric StimulationCalcium Channels, N-TypeDogsApaminTetrodotoxinReceptors, DrugPyridinesPotassium Deficiency