Synaptic VesiclesMembrane FusionSyntaxin 1SynaptophysinR-SNARE ProteinsSynaptic MembranesExocytosisCell MembraneElectric OrganQa-SNARE ProteinsNerve Tissue ProteinsIntracellular MembranesSynaptotagminsMembranesEndocytosisSNARE ProteinsTorpedoMembrane ProteinsMembrane LipidsNeurofibrilsVesicular Transport ProteinsMicroscopy, ElectronNeurotransmitter AgentsRana pipiensSynaptosomal-Associated Protein 25Munc18 ProteinsMembranes, ArtificialMembrane PotentialsCell FusionSecretory VesiclesSyntaxin 16LiposomesVesicle-Associated Membrane Protein 2Recombinant Fusion ProteinsViral Fusion ProteinsTransport VesiclesSynapsinsSynaptotagmin IMolecular Sequence DataLipid BilayersAmino Acid SequenceMembrane FluidityProtein BindingErythrocyte MembraneMembrane GlycoproteinsPyridinium CompoundsBrainMembrane Fusion ProteinsPresynaptic TerminalsCarrier ProteinsCell Membrane PermeabilityProtein TransportCalciumEndosomesGolgi ApparatusHydrogen-Ion ConcentrationCell LineMutationProtein Structure, TertiaryCytoplasmic VesiclesFreeze FracturingSoluble N-Ethylmaleimide-Sensitive Factor Attachment ProteinsModels, BiologicalMembrane Transport ProteinsVirus InternalizationPhosphatidylcholinesKineticsCells, CulturedCell FractionationBasement MembraneN-Ethylmaleimide-Sensitive ProteinsSynaptosomesPC12 CellsSynaptic TransmissionSynapsesMicroscopy, FluorescenceQuaternary Ammonium CompoundsClathrinNeuronsCattlerab3 GTP-Binding ProteinsChromaffin GranulesCytoplasmic GranulesFluorescent DyesNeuromuscular JunctionOrganellesCalcium-Binding ProteinsNerve EndingsProtein ConformationChromaffin CellsMicroscopy, ConfocalGreen Fluorescent ProteinsSubcellular FractionsBiological TransportAntigens, SurfaceDynaminsMicroscopy, ImmunoelectronTemperatureVacuolesBotulinum Toxins