LymphocytesVertebratesLymphocyte ActivationLymphocyte SubsetsT-LymphocytesLymphocyte CountB-LymphocytesMolecular Sequence DataZebrafishLymphocyte Culture Test, MixedAmino Acid SequenceLymphocytes, Tumor-InfiltratingCells, CulturedSpleenPhytohemagglutininsBase SequenceGene Expression Regulation, DevelopmentalT-Lymphocytes, CytotoxicLymphocyte TransfusionEvolution, MolecularCD4-Positive T-LymphocytesConcanavalin ALeukocyte CountFlow CytometryChordata, NonvertebrateCytotoxicity, ImmunologicZebrafish ProteinsEmbryo, NonmammalianLampreysInterleukin-2Biological EvolutionFishesMice, Inbred C57BLBody PatterningCD8-Positive T-LymphocytesT-Lymphocyte SubsetsAntigens, CD3MitogensCell LineHagfishesImmunity, CellularLymphocyte DepletionSequence Homology, Amino AcidAntibodies, MonoclonalSignal TransductionSpecies SpecificityAntigens, CDLymph NodesMice, Inbred BALB CReceptors, Lymphocyte HomingLymphocyte CooperationIn Situ HybridizationLymphocyte Function-Associated Antigen-1Rosette FormationReptilesInvertebratesThymus GlandChickensLectinsRNA, MessengerKiller Cells, NaturalSequence AlignmentAntigens, Differentiation, T-LymphocyteAntigens, SurfaceCytotoxicity Tests, ImmunologicCell DifferentiationInterferon-gammaConserved SequenceXenopus ProteinsHomeodomain ProteinsTime FactorsCloning, MolecularReceptors, Antigen, B-CellImmunophenotypingCD4 Lymphocyte CountTranscription FactorsPhenotypeCell SeparationDNAImmunoglobulinsCell DivisionCell MovementReceptors, Antigen, T-CellAmphibiansPetromyzonChordataSharksClone CellsLeukemia, LymphoidCiona intestinalisOryziasImmune Adherence ReactionTakifuguGene DuplicationGenomeXenopusLymphocytes, NullGene Expression RegulationCytokinesChick Embryo