Membrane FusionCell FusionCell MembraneViral Fusion ProteinsMembrane LipidsMembranesMembrane Fusion ProteinsIntracellular MembranesRecombinant Fusion ProteinsSNARE ProteinsSensitivity and SpecificitySubstrate SpecificityMolecular Sequence DataVirus InternalizationMembranes, ArtificialAmino Acid SequenceMembrane PotentialsLiposomesVesicular Transport ProteinsMembrane FluidityQa-SNARE ProteinsErythrocyte MembraneCell LineExocytosisProtein BindingViral Envelope ProteinsLipid BilayersProtein Structure, TertiaryHydrogen-Ion ConcentrationMembrane GlycoproteinsCell Membrane PermeabilityMutationModels, MolecularSpinal FusionProtein ConformationSynaptosomal-Associated Protein 25Gene FusionMicroscopy, ElectronBase SequenceBasement MembraneR-SNARE ProteinsAnnexin A7Models, BiologicalN-Ethylmaleimide-Sensitive ProteinsMunc18 ProteinsBinding SitesSoluble N-Ethylmaleimide-Sensitive Factor Attachment ProteinsMembrane ProteinsHIV Envelope Protein gp41Giant CellsKineticsProtein TransportMembrane Transport ProteinsCricetinaeSyntaxin 1Hemagglutinin Glycoproteins, Influenza VirusCarrier ProteinsVacuolesEscherichia coliQc-SNARE ProteinsAntibody SpecificityFreeze FracturingMitochondrial MembranesCalciumVesicle-Associated Membrane Protein 2PeptidesQb-SNARE ProteinsSequence Homology, Amino AcidRecombinant ProteinsCercopithecus aethiopsOncogene Proteins, FusionBacterial ProteinsProtein Structure, SecondaryGolgi ApparatusCells, CulturedMicroscopy, FluorescenceCloning, MolecularSemliki forest virusEndosomesPhosphatidylcholinesHeLa CellsTemperatureHemagglutinins, ViralEndocytosisSpecies SpecificitySequence AlignmentMutagenesis, Site-DirectedSynaptic MembranesElectrophoresis, Polyacrylamide GelReceptors, VirusEndoplasmic ReticulumPhosphatidylethanolaminesStructure-Activity RelationshipSaccharomyces cerevisiae ProteinsGreen Fluorescent ProteinsGlycoproteinsSecretory VesiclesTime FactorsTransport VesiclesTransfection