Immunological SynapsesSynapsesIntercellular JunctionsReceptors, Antigen, T-CellAntigen-Presenting CellsGap JunctionsCell CommunicationTight JunctionsT-LymphocytesJurkat CellsMicrotubule-Organizing CenterLymphocyte ActivationNeuromuscular JunctionMembrane MicrodomainsAdherens JunctionsLymphocyte Function-Associated Antigen-1Signal TransductionCell PolarityNonmuscle Myosin Type IIAZAP-70 Protein-Tyrosine KinaseLymphocyte Specific Protein Tyrosine Kinase p56(lck)Mice, TransgenicSynaptic TransmissionAntigens, CD3Immunologic CappingModels, ImmunologicalProtein TransportWiskott-Aldrich Syndrome ProteinActinsAntigens, CD28Microscopy, ConfocalProto-Oncogene Proteins c-vavCells, CulturedMembrane ProteinsExcitatory Postsynaptic PotentialsAntigens, CD2CytoskeletonElectrical SynapsesPresynaptic TerminalsWiskott-Aldrich SyndromeAntigen PresentationNeuronal PlasticityConnexinsMice, Inbred C57BLCD4-Positive T-LymphocytesSecretory VesiclesNeuronsMice, KnockoutProtein Kinase CSynaptic VesiclesAdaptor Proteins, Signal TransducingGreen Fluorescent ProteinsCell MembraneCell LineReceptor AggregationHippocampusMyelin and Lymphocyte-Associated Proteolipid ProteinsCoculture Techniquescdc42 GTP-Binding ProteinMicroscopy, FluorescenceT-Lymphocytes, CytotoxicProtein BindingCalcium SignalingDendritesKv1.3 Potassium ChannelMolecular Sequence DataConnexin 43Killer Cells, NaturalIsoenzymesAntigens, CDCalciumReceptors, AMPAAntigensElectric StimulationCytoskeletal ProteinsReceptor-CD3 Complex, Antigen, T-CellMicroscopy, Electron, TransmissionZonula Occludens-1 ProteinT-Lymphocyte SubsetsDendritic SpinesAntigens, CD43PhosphorylationImmune SystemCytotoxicity, ImmunologicLong-Term PotentiationEsophagogastric JunctionPatch-Clamp TechniquesExocytosisNeurotransmitter AgentsTime FactorsProtein Structure, TertiaryOccludinAntigens, CD58Microscopy, ElectronAntigens, CD11aIntercellular Adhesion Molecule-1Cell AdhesionCytoplasmic GranulesRecombinant Fusion ProteinsLuminescent Proteins