PhenotypeLymphomaHistocytochemistryB-LymphocytesT-LymphocytesAntibodies, MonoclonalMutationMolecular Sequence DataGenotypeBase SequenceAmino Acid SequenceAllelesCell DifferentiationMice, Inbred C57BLCells, CulturedMice, KnockoutPedigreeGenetic Complementation TestMice, TransgenicChromosome MappingGene DeletionSignal TransductionTranscription FactorsRNA, MessengerCell LineImmunophenotypingCrosses, GeneticGene Expression Regulation, DevelopmentalDisease Models, AnimalHomozygoteHeterozygoteGene ExpressionGene Expression RegulationDNA Mutational AnalysisBacterial ProteinsMembrane ProteinsCloning, MolecularGene Expression ProfilingGenetic LinkageMutation, MissenseImmunohistochemistryReverse Transcriptase Polymerase Chain ReactionDNA-Binding ProteinsCell DivisionGenes, DominantPolymerase Chain ReactionMutagenesis, InsertionalModels, GeneticDrosophila ProteinsDNA PrimersMutagenesisCell ProliferationSaccharomyces cerevisiaeArabidopsisFlow CytometryGenetic VariationMice, Mutant StrainsSequence Homology, Amino AcidSuppression, GeneticSequence Analysis, DNAArabidopsis ProteinsPoint MutationTranscription, GeneticGenetic Predisposition to DiseaseGenes, LethalModels, BiologicalCell Transformation, NeoplasticFibroblastsHomeodomain ProteinsPolymorphism, Single NucleotideNuclear ProteinsBlotting, WesternEscherichia coli