Membrane PotentialsAction PotentialsCell MembraneMembranesElectrophysiologyIntracellular MembranesPotassiumMembrane LipidsPatch-Clamp TechniquesElectric ConductivityCalciumPotassium ChannelsIon ChannelsMembranes, ArtificialCell Membrane PermeabilitySodiumMembrane Potential, MitochondrialIon Channel GatingErythrocyte MembraneNeuronsElectric StimulationTetrodotoxinMembrane FluidityChloridesGuinea PigsMicroelectrodesTime FactorsTetraethylammoniumTetraethylammonium CompoundsKineticsCalcium ChannelsModels, BiologicalBasement MembraneHydrogen-Ion ConcentrationBariumSodium ChannelsCells, CulturedCyclamatesLipid BilayersPotassium Channel BlockersCesiumOocytesIon TransportMitochondriaRabbitsXenopus laevis4-AminopyridineDecapodiformesMembrane Transport ProteinsMitochondrial MembranesAxonsCalcium SignalingRats, Sprague-DawleyHeartAdenosine TriphosphateBiological Transport, ActiveMembrane GlycoproteinsCell LineDose-Response Relationship, DrugNecturusModels, NeurologicalShaker Superfamily of Potassium ChannelsNecturus maculosusRats, WistarMicroscopy, ElectronFluorescent DyesOuabainSynaptic MembranesNeural ConductionLarge-Conductance Calcium-Activated Potassium ChannelsExtracellular SpaceSynaptic TransmissionEgtazic AcidXenopusProtein TransportPotassium Channels, Voltage-GatedVentricular FunctionSynapsesMathematicsMyocardiumMolecular Sequence DataDogsHeart Conduction SystemValinomycinMagnesiumBufo marinusComputer SimulationPotassium Channels, Calcium-ActivatedLiposomesPurkinje FibersMutationChloride ChannelsAmino Acid SequenceDendritesPyramidal CellsPhotoreceptor CellsCarrier ProteinsProtein BindingProtein Structure, TertiaryHeart Ventricles