Chick EmbryoClone CellsIsobutyratesViral InterferenceSindbis VirusCell LineageAvian Sarcoma VirusesCulture TechniquesChickensVirus CultivationFibroblastsMolecular Sequence DataCloning, MolecularCells, CulturedBase SequenceAmino Acid SequencePhylogenyCell LineCell DifferentiationSequence Analysis, DNAT-LymphocytesDNA, ComplementaryRNA, MessengerSequence Homology, Amino AcidDNALymphocyte ActivationPolymerase Chain ReactionSequence Homology, Nucleic AcidReceptors, Antigen, T-Cell, alpha-betaNucleic Acid HybridizationGene Expression Regulation, DevelopmentalPlasmidsSequence AlignmentPhenotypeEpitopesGene ExpressionReceptors, Antigen, T-CellGenesMutationCell DivisionT-Lymphocytes, Helper-InducerRecombinant ProteinsEvolution, MolecularB-LymphocytesTranscription, GeneticBlotting, SouthernGenes, BacterialDNA PrimersCD4-Positive T-LymphocytesEscherichia coliTransfectionStem CellsAntibodies, MonoclonalDNA, BacterialGenetic VariationGenes, T-Cell Receptor betaDNA Restriction EnzymesGene Expression RegulationTranscription FactorsGenetic VectorsBlotting, NorthernTumor Cells, CulturedIn Situ HybridizationChromosome MappingMice, Inbred C57BLDNA, RecombinantMice, Inbred BALB CCloning, OrganismEpitopes, T-LymphocyteSpecies SpecificityRestriction MappingFlow CytometryAntigens, SurfaceMultigene FamilyReverse Transcriptase Polymerase Chain ReactionHematopoietic Stem CellsBiological EvolutionCell Line, TransformedMesodermAvian ProteinsT-Lymphocyte SubsetsGene Rearrangement, beta-Chain T-Cell Antigen ReceptorHLA-DR AntigensMice, TransgenicChimeraHistocompatibility Antigens Class IIT-Lymphocytes, CytotoxicTime FactorsRetroviridaeInterleukin-2DNA-Binding ProteinsBacterial ProteinsCytotoxicity, ImmunologicPromoter Regions, GeneticKineticsSignal TransductionImmunophenotypingAntigen-Presenting CellsPeptide FragmentsAntigens, CD