Mice, KnockoutMice, TransgenicMice, Inbred C57BLTransgenesDisease Models, AnimalGene Knockout TechniquesGene ExpressionRNA, MessengerCrosses, GeneticPromoter Regions, GeneticPlants, Genetically ModifiedImmunohistochemistryPhenotypeMolecular Sequence DataRats, TransgenicAnimals, Genetically ModifiedCells, CulturedGene Expression RegulationThymus GlandBase SequenceMice, Inbred CBAT-LymphocytesSpleenReceptors, Antigen, T-Cell, alpha-betaBrainMice, Inbred BALB CB-LymphocytesH-2 AntigensCell DifferentiationLiverSignal TransductionMutationGreen Fluorescent ProteinsMice, Inbred DBACD4-Positive T-LymphocytesReverse Transcriptase Polymerase Chain ReactionClonal DeletionImmune ToleranceLymphocyte ActivationReceptors, Antigen, T-CellEpitopes, T-LymphocyteNeuronsDNA PrimersAntigens, Polyomavirus TransformingMembrane ProteinsImmunizationPapillomavirus E7 ProteinsAmino Acid SequenceFlow CytometryCell LinePeptide FragmentsMembrane GlycoproteinsGene TargetingInterferon-gammaHybridomasT-Lymphocyte SubsetsImmunoglobulin kappa-ChainsAutoantigensCytokinesCell DivisionT-Lymphocytes, CytotoxicGene DeletionCancer VaccinesAntigens, CD4Polymerase Chain ReactionImmunoglobulin GNuclear ProteinsCD8-Positive T-LymphocytesAntigens, CDOrgan SpecificityMice, 129 StrainAutoantibodiesGene Expression Regulation, DevelopmentalInterleukin-4Blotting, WesternNerve Tissue ProteinsCytotoxicity, ImmunologicBehavior, AnimalTobaccoPeptidesIntegrasesApoptosisApolipoproteins ETranscription FactorsEmbryo, MammalianTime FactorsAntibodies, MonoclonalHomozygoteAnimals, NewbornMice, Inbred StrainsModels, AnimalHeterozygoteTumor Cells, CulturedUp-RegulationGene Expression Regulation, PlantMotor ActivityMaze LearningGenes, ReporterDNA-Binding ProteinsHippocampus