ExocytosisSynapsesImmunological SynapsesSynaptic VesiclesSecretory VesiclesSynaptic TransmissionPresynaptic TerminalsExcitatory Postsynaptic PotentialsCalciumChromaffin CellsSynaptotagminsCytoplasmic GranulesNeuronsElectric CapacitanceSNARE ProteinsNeuronal PlasticityNerve Tissue ProteinsElectrical SynapsesHippocampusVesicular Transport ProteinsSynaptosomal-Associated Protein 25Patch-Clamp TechniquesNeurotransmitter AgentsPyridinium Compoundsrab3A GTP-Binding ProteinR-SNARE ProteinsReceptors, AMPADendritesQa-SNARE ProteinsMembrane FusionWeibel-Palade BodiesSynaptotagmin ICells, Culturedrab3 GTP-Binding ProteinsElectric StimulationSyntaxin 1Synaptic MembranesDendritic SpinesLong-Term PotentiationCell MembraneNeuromuscular JunctionAcrosomePC12 CellsMembrane ProteinsGlutamic AcidNeural InhibitionReceptors, N-Methyl-D-AspartateVesicle-Associated Membrane Protein 2Munc18 ProteinsEndocytosisRats, Sprague-Dawleygamma-Aminobutyric AcidElectrophysiologySynaptophysinGoldfishAction PotentialsAxonsMicroscopy, ElectronCalcium SignalingModels, NeurologicalTetanus ToxinAnimals, NewbornExcitatory Amino Acid AntagonistsSynapsinsGreen Fluorescent ProteinsLong-Term Synaptic DepressionMicroscopy, ConfocalInterneuronsVesicular Glutamate Transport Protein 1Spider VenomsMembrane Potentialsrab GTP-Binding ProteinsQuaternary Ammonium CompoundsProtein TransportPurkinje CellsMossy Fibers, HippocampalPost-Synaptic DensityMicroscopy, Electron, TransmissionPyramidal CellsReceptors, GlutamateTime FactorsAdrenal MedullaSynaptic PotentialsSynaptotagmin IIAcrosome ReactionN-Ethylmaleimide-Sensitive ProteinsTransport VesiclesMotor NeuronsMice, KnockoutCalcium ChannelsCerebellumRetinal Bipolar CellsChromaffin GranulesCalcium-Binding ProteinsRats, WistarNerve EndingsMicroscopy, FluorescenceMicroscopy, ImmunoelectronBotulinum ToxinsGuanylate Kinase