B-Lymphocyte SubsetsB-LymphocytesBlastocyst Inner Cell MassImmunoglobulin DBlastocystReceptors, Antigen, B-CellLymphocyte ActivationSpleenImmunoglobulin MMice, Inbred C57BLMice, Inbred BALB CCell DifferentiationFlow CytometryImmunoglobulin delta-ChainsAntigens, T-IndependentCells, CulturedAntigens, CD19Antibodies, Anti-IdiotypicImmunologic MemoryImmunoglobulin Heavy ChainsAntigens, CD27Precursor Cells, B-LymphoidT-Lymphocyte SubsetsImmunoglobulin Class SwitchingImmunoglobulin GB-Cell Activating FactorB-Lymphocytes, RegulatoryEar, InnerLymphocyte SubsetsImmunoglobulinsImmunophenotypingAntigens, CD40Antigens, CD5Mice, KnockoutMice, TransgenicImmunoglobulin mu-ChainsAntigens, CDLymphocyte CountT-LymphocytesTrophoblastsLymphoma, B-CellGenes, ImmunoglobulinMice, Inbred CBAReceptors, Complement 3dGerminal CenterMice, Inbred StrainsEmbryonic DevelopmentMorulaAntibodies, MonoclonalB-Cell Activation Factor ReceptorGene Rearrangement, B-Lymphocyte, Light ChainSignal TransductionMolecular Sequence DataAntibody FormationInterleukin-4Cell LineLipopolysaccharidesHLA-DR5 AntigenEmbryo, MammalianGene Rearrangement, B-LymphocyteImmunoglobulin Variable RegionPalatine TonsilEmbryo Culture TechniquesImmunoglobulin kappa-ChainsCell SeparationSialic Acid Binding Ig-like Lectin 2Melanoma, ExperimentalOctamer Transcription Factor-3Mice, Inbred C3HCD4-Positive T-LymphocytesBlastomeresCD40 LigandEmbryonic and Fetal DevelopmentCell DivisionBase SequenceCell LineageClone CellsLymphomaLymphoid TissueMembrane GlycoproteinsImmunoglobulin IsotypesRNA, MessengerLupus Erythematosus, SystemicAutoimmunityEndodermHistocompatibility Antigens Class IIGene Expression RegulationPhenotypeEctodermPlasma CellsAntigens, Differentiation, B-LymphocyteMice, Inbred DBATosylphenylalanyl Chloromethyl KetoneChimeraCell ProliferationAmino Acid SequenceBone Marrow CellsApoptosisGene Expression Regulation, DevelopmentalImmune Tolerance