Shaw Potassium ChannelsPotassium ChannelsPotassium Channels, Inwardly RectifyingDelayed Rectifier Potassium ChannelsPotassium Channels, Voltage-GatedPotassiumPotassium Channel BlockersBarium CompoundsAndersen SyndromeIon Channel GatingEther-A-Go-Go Potassium ChannelsIon ChannelsShaker Superfamily of Potassium ChannelsShab Potassium ChannelsMembrane PotentialsPatch-Clamp TechniquesG Protein-Coupled Inwardly-Rectifying Potassium ChannelsKv1.3 Potassium ChannelKCNQ1 Potassium ChannelOocytesKv1.5 Potassium ChannelCalcium ChannelsKv1.2 Potassium ChannelKCNQ Potassium ChannelsKv1.1 Potassium ChannelElectric ConductivityPotassium Channels, Calcium-ActivatedElectrophysiologyXenopusAdrenergic alpha-AntagonistsBariumXenopus laevisCesiumAction PotentialsKv1.4 Potassium ChannelLarge-Conductance Calcium-Activated Potassium ChannelsKATP ChannelsKCNQ2 Potassium ChannelPotassium Channels, Tandem Pore DomainCalcium Channel BlockersShal Potassium ChannelsKCNQ3 Potassium Channel4-AminopyridineMolecular Sequence DataAmino Acid SequenceKineticsSmall-Conductance Calcium-Activated Potassium ChannelsChloride ChannelsCalcium Channels, L-TypeGlyburideTetraethylammonium CompoundsGuinea PigsAnti-Arrhythmia AgentsIntermediate-Conductance Calcium-Activated Potassium ChannelsCharybdotoxinScorpion VenomsNeuronsSodiumCromakalimCalciumLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsSulfonylurea ReceptorsCloning, MolecularPinacidilSodium Channel BlockersDose-Response Relationship, DrugTransfectionPotassium, DietaryLong QT SyndromeMyocardiumCells, CulturedIon TransportHeart VentriclesAdenosine TriphosphateRats, Sprague-DawleyCell MembraneCalcium Channels, N-TypeHeartPotassium ChlorideRNA, MessengerQuinidinePotassium DeficiencyMyocytes, CardiacBenzopyransApaminCalcium Channels, T-TypeCyclic Nucleotide-Gated Cation ChannelsMutationChloridesReceptors, DrugPotassium CompoundsTRPC Cation ChannelsCell LineRabbitsLarge-Conductance Calcium-Activated Potassium Channel beta SubunitsVentricular FunctionCHO CellsCalcium Channel AgonistsHeart AtriaElapid Venoms