PotassiumPotassium ChannelsShal Potassium ChannelsKv Channel-Interacting ProteinsPotassium Channels, Voltage-GatedPotassium Channel BlockersPatch-Clamp Techniques4-AminopyridineAction PotentialsTetraethylammoniumElectrophysiologyMembrane PotentialsTetraethylammonium CompoundsKv1.4 Potassium ChannelElectric ConductivityDelayed Rectifier Potassium ChannelsHeart VentriclesCesiumSodiumCalciumMyocardiumMyocytes, CardiacIon ChannelsPotassium Channels, Inwardly RectifyingVentricular FunctionIon Channel GatingHeart AtriaAnti-Arrhythmia AgentsHeartGuinea PigsPotassium, DietaryCalcium ChannelsPotassium DeficiencyPotassium CompoundsNeuronsCells, CulturedTetrodotoxinRats, Sprague-DawleyRats, WistarKineticsDogsSodium ChannelsDose-Response Relationship, DrugPotassium IsotopesPotassium ChlorideCell SeparationRabbitsShaker Superfamily of Potassium ChannelsTime FactorsKv1.3 Potassium ChannelPotassium Channels, Calcium-ActivatedPotassium Channels, Tandem Pore DomainShaw Potassium ChannelsPotassium IodideKv1.5 Potassium ChannelPotassium RadioisotopesKv1.2 Potassium ChannelKCNQ1 Potassium ChannelBariumShab Potassium ChannelsHypokalemiaAminopyridinesPotassium CitrateKCNQ Potassium ChannelsEther-A-Go-Go Potassium ChannelsPotassium PermanganateHyperkalemiaBarium CompoundsSmall-Conductance Calcium-Activated Potassium ChannelsGlyburideCharybdotoxinKCNQ2 Potassium ChannelRubidiumKCNQ3 Potassium ChannelLarge-Conductance Calcium-Activated Potassium ChannelsIon TransportOuabainG Protein-Coupled Inwardly-Rectifying Potassium ChannelsApaminOocytesBiological Transport, ActiveMagnesiumPotassium DichromateXenopus laevisElectric StimulationAdenosine TriphosphateQuinidineHydrogen-Ion ConcentrationCell MembraneCromakalimMolluscaKATP ChannelsCell Membrane PermeabilityExtracellular SpaceChloride ChannelsXenopusScorpion VenomsChloridesDecapodiformesLithium