Potassium ChannelsPotassium Channels, Inwardly RectifyingDelayed Rectifier Potassium ChannelsPotassiumPotassium Channels, Voltage-GatedPotassium Channel BlockersBarium CompoundsIon Channel GatingIon ChannelsEther-A-Go-Go Potassium ChannelsAndersen SyndromeMembrane PotentialsPatch-Clamp TechniquesShaker Superfamily of Potassium ChannelsShab Potassium ChannelsG Protein-Coupled Inwardly-Rectifying Potassium ChannelsKv1.3 Potassium ChannelKCNQ1 Potassium ChannelOocytesShaw Potassium ChannelsElectric ConductivityElectrophysiologyKv1.2 Potassium ChannelKv1.5 Potassium ChannelCalcium ChannelsKCNQ Potassium ChannelsPotassium Channels, Calcium-ActivatedXenopusTetraethylammoniumKv1.1 Potassium ChannelBariumXenopus laevisCesiumAction PotentialsKv1.4 Potassium ChannelLarge-Conductance Calcium-Activated Potassium ChannelsKCNQ2 Potassium ChannelPotassium Channels, Tandem Pore DomainKATP ChannelsMolecular Sequence DataAmino Acid SequenceShal Potassium ChannelsKCNQ3 Potassium ChannelCalcium Channel Blockers4-AminopyridineKineticsChloride ChannelsSmall-Conductance Calcium-Activated Potassium ChannelsGlyburideCalcium Channels, L-TypeTetraethylammonium CompoundsSodiumGuinea PigsPotassium, DietaryCalciumCell MembranePotassium DeficiencyAnti-Arrhythmia AgentsIntermediate-Conductance Calcium-Activated Potassium ChannelsScorpion VenomsCloning, MolecularCharybdotoxinPotassium ChlorideNeuronsDose-Response Relationship, DrugTransfectionLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsPotassium CompoundsCromakalimIon TransportSodium Channel BlockersSulfonylurea ReceptorsPinacidilAdenosine TriphosphateMyocardiumCells, CulturedMutationChloridesProtein Structure, TertiaryLong QT SyndromeRats, Sprague-DawleyCell LineHeart VentriclesHeartPotassium IsotopesRNA, MessengerQuinidineCalcium Channels, N-TypeMyocytes, CardiacModels, MolecularModels, BiologicalRabbitsBenzopyransApaminCHO CellsCyclic Nucleotide-Gated Cation ChannelsMutagenesis, Site-DirectedReceptors, DrugTime FactorsElectric Stimulation