Ether-A-Go-Go Potassium ChannelsPotassium Channels, Voltage-GatedCation Transport ProteinsLong QT SyndromePotassium ChannelsPotassium Channel BlockersCisaprideAstemizolePatch-Clamp TechniquesTerfenadineTrans-ActivatorsKCNQ1 Potassium ChannelIon Channel GatingXenopus laevisOocytesPhenethylaminesAnti-Arrhythmia AgentsMembrane PotentialsQuinidineKCNQ Potassium ChannelsXenopusDNA-Binding ProteinsPiperidinesHEK293 CellsTorsades de PointesCHO CellsMutationElectrophysiologyPotassiumAction PotentialsDelayed Rectifier Potassium ChannelsRNA, ComplementarySulfanilamidesCell LinePropafenoneCricetinaeHistamine H1 AntagonistsSulfonamidesKv1.5 Potassium ChannelMyocytes, CardiacInhibitory Concentration 50Dose-Response Relationship, DrugMutagenesis, Site-DirectedLinderaMutation, MissenseTransfectionCricetulusCresolsPentamidinePyridinesBenzopyransElectric ConductivityBepridilScorpion VenomsProtein TransportPromazineGuinea PigsAmino Acid SubstitutionTachycardia, ReciprocatingChlorobenzenesLoratadineDoxepinKineticsProtein Structure, TertiarySkeletal Muscle VentricleStructure-Activity RelationshipHeartMolecular Sequence DataHistamine H1 Antagonists, Non-SedatingDrug RecallsCardiac GlycosidesMuscle CellsModels, CardiovascularHypokalemiaAmino Acid SequenceDextropropoxypheneModels, MolecularElectrocardiographyCell MembraneProbucolMyocardiumDrug Evaluation, PreclinicalKetoconazoleQuinolinesImidazolidinesBinding SitesHeart VentriclesProtein IsoformsCetirizineNucleotides, CyclicAmino Acids, AromaticRecombinant ProteinsQuaternary Ammonium CompoundsFluvoxamineElectrophysiological PhenomenaNAV1.5 Voltage-Gated Sodium ChannelHydroxyzineThalliumGastrointestinal AgentsAntidepressive Agents, Tricyclic