Membrane FusionSNARE ProteinsCell MembraneCell FusionViral Fusion ProteinsMembrane LipidsMembranesMembrane Fusion ProteinsIntracellular MembranesRecombinant Fusion ProteinsVirus InternalizationMembranes, ArtificialMembrane PotentialsLiposomesMembrane FluidityVesicular Transport ProteinsMolecular Sequence DataQa-SNARE ProteinsErythrocyte MembraneAmino Acid SequenceExocytosisViral Envelope ProteinsCell LineLipid BilayersHydrogen-Ion ConcentrationMembrane GlycoproteinsCell Membrane PermeabilityProtein Structure, TertiaryProtein BindingSpinal FusionSynaptosomal-Associated Protein 25Gene FusionMutationMicroscopy, ElectronBasement MembraneR-SNARE ProteinsAnnexin A7N-Ethylmaleimide-Sensitive ProteinsModels, BiologicalSoluble N-Ethylmaleimide-Sensitive Factor Attachment ProteinsMunc18 ProteinsProtein ConformationGiant CellsHIV Envelope Protein gp41Protein TransportSyntaxin 1Membrane Transport ProteinsVacuolesMembrane ProteinsHemagglutinin Glycoproteins, Influenza VirusQc-SNARE ProteinsCricetinaeModels, MolecularFreeze FracturingMitochondrial MembranesVesicle-Associated Membrane Protein 2Carrier ProteinsCalciumQb-SNARE ProteinsOncogene Proteins, FusionCercopithecus aethiopsGolgi ApparatusBase SequenceMicroscopy, FluorescenceSemliki forest virusEndosomesCells, CulturedEscherichia coliEndocytosisPhosphatidylcholinesHemagglutinins, ViralSynaptic MembranesProtein Structure, SecondaryPeptidesKineticsGreen Fluorescent ProteinsEndoplasmic ReticulumHeLa CellsTemperatureBinding SitesBacterial ProteinsPhosphatidylethanolaminesSecretory VesiclesReceptors, VirusTransport VesiclesRecombinant ProteinsSequence Homology, Amino AcidSynaptotagminsSaccharomyces cerevisiae ProteinsMicroscopy, ConfocalCloning, MolecularPhosphatidylserinesGlycoproteinsDriveHIV Fusion Inhibitorsrab GTP-Binding ProteinsParameciumCytoplasmElectrophoresis, Polyacrylamide GelTime Factors