Sarcoplasmic ReticulumRyanodine Receptor Calcium Release ChannelRyanodineCalciumCalcium-Transporting ATPasesSarcoplasmic Reticulum Calcium-Transporting ATPasesCalsequestrinMyocardiumRabbitsEndoplasmic ReticulumMyocytes, CardiacCaffeineCalcium SignalingTacrolimus Binding ProteinsCalcium ChannelsMusclesMuscle ProteinsMyocardial ContractionCalcium-Binding ProteinsDantroleneExcitation Contraction CouplingTacrolimus Binding Protein 1AHeartCalcium Channels, L-TypeRuthenium RedArrhythmias, CardiacMuscle, SkeletalDogsAdenosine TriphosphateMicrosomesHeart VentriclesKineticsCa(2+) Mg(2+)-ATPaseIon Channel GatingMagnesiumSodium-Calcium ExchangerTachycardia, VentricularCalcium Channel AgonistsThapsigarginMalignant HyperthermiaMuscle ContractionMembrane PotentialsLipid BilayersSarcolemmaTetracaineEgtazic AcidCyclic AMP-Dependent Protein KinasesPhosphorylationCalcium-Calmodulin-Dependent Protein Kinase Type 2Adenosine TriphosphatasesIsoproterenolMuscle Fibers, SkeletalHeart FailureReceptors, CholinergicDeath, Sudden, CardiacProcaineMyofibrilsThiazepinesTime FactorsCalmodulinPatch-Clamp TechniquesBinding SitesIntracellular MembranesCytosolAdrenergic beta-AgonistsInositol 1,4,5-Trisphosphate ReceptorsBiological Transport, ActiveOxalatesAmino Acid SequenceElectric ConductivityMolecular Sequence DataProtein BindingMicroscopy, ConfocalMicroscopy, ElectronCardiac OutputCardiomegalyCalcium Channel BlockersSheepPapillary MusclesMutationAction PotentialsCells, CulturedFluorescent DyesEndoplasmic Reticulum StressXanthenesVentricular FunctionIndolesCresolsAlkaloidsCalcium RadioisotopesGene Knock-In TechniquesCyclic ADP-RibosePotassiumGuinea PigsHalothaneRats, Sprague-DawleyIon TransportHydrogen-Ion ConcentrationBiological TransportMuscle Fibers, Fast-Twitch