Membrane PotentialsCell MembraneMembranesIntracellular MembranesMembrane LipidsCalcium SignalingCalciumCalcium ChannelsCell Membrane PermeabilityMembranes, ArtificialMembrane Potential, MitochondrialErythrocyte MembraneMembrane FluidityPotassiumCells, CulturedSodiumBasement MembraneElectrophysiologyMitochondriaCell LinePatch-Clamp TechniquesIon ChannelsKineticsTime FactorsElectric ConductivityHydrogen-Ion ConcentrationModels, BiologicalMembrane Transport ProteinsNeuronsFluorescent DyesMitochondrial MembranesCalcium, DietaryEgtazic AcidMembrane GlycoproteinsBiological Transport, ActiveCalcium Channel BlockersAction PotentialsAdenosine TriphosphateLipid BilayersMicroscopy, ElectronIon TransportCalcium Channels, L-TypeProtein TransportChloridesThapsigarginSignal TransductionProtein BindingRats, Sprague-DawleyDose-Response Relationship, DrugMicroscopy, FluorescenceCytosolPotassium ChannelsRabbitsMolecular Sequence DataCarrier ProteinsValinomycinNifedipineLiposomesSynaptic MembranesCalcium IsotopesMicroscopy, ConfocalMutationLanthanumCalcium ChlorideProtein Structure, TertiaryAmino Acid SequenceErythrocytesElectric StimulationGuinea PigsIon Channel GatingEndoplasmic ReticulumCytoplasmFura-2IonophoresIntracellular FluidMagnesiumCattleRats, WistarTemperatureCalcium CarbonateOuabainChelating AgentsCell FractionationCalcium RadioisotopesEscherichia coliPotassium ChlorideExocytosisTetrodotoxinBiological TransportElectrophoresis, Polyacrylamide GelCalcium Channel AgonistsCalcimycinCricetinaeRecombinant Fusion ProteinsPhosphatidylcholinesEnzyme InhibitorsBinding SitesPermeabilityPeptidesTransfection