G(M2) Activator ProteinMolecular Sequence DataSphingolipid Activator ProteinsEnzyme ActivationVitellogeninsAmino Acid SequenceSignal TransductionSaposinsG(M2) GangliosideBase SequenceTranscription Factor AP-1Vaccinia virusMutationTissue Plasminogen ActivatorB-Lymphocyte SubsetsCyclic AMP Receptor ProteinB-Cell-Specific Activator ProteinPromoter Regions, GeneticPlasminogen Activator Inhibitor 1Transcription FactorsUrokinase-Type Plasminogen ActivatorDNA-Binding ProteinsB-Lymphocytesbeta-N-AcetylhexosaminidasesProto-Oncogene Proteins c-junHexosaminidase ATranscription, GeneticTrans-ActivatorsTranscription Factor AP-2GangliosidosesCells, CulturedGangliosidoses, GM2MonoglyceridesBinding SitesProto-Oncogene Proteins c-fosProtein BindingTranscriptional ActivationCell LineGene Expression RegulationLymphocyte ActivationRNA, MessengerGerminal CenterTay-Sachs DiseaseMice, Inbred C57BLImmunoglobulin MSpleenReceptors, Urokinase Plasminogen ActivatorCell DifferentiationPlasminogen ActivatorsHexosaminidase BImmunoglobulin DReceptors, Cyclic AMPEscherichia coliDNAGlycosphingolipidsTransfectionNF-kappa BGlycoproteinsMice, KnockoutAntigens, CD19ProteinsBacterial ProteinsLeukodystrophy, MetachromaticRepressor ProteinsRNA Polymerase Sigma 54Fos-Related Antigen-2Mice, TransgenicPhosphorylationMice, Inbred BALB CFlow CytometryB-Cell Activating FactorRecombinant ProteinsImmunoglobulin Heavy ChainsPlasmidsJNK Mitogen-Activated Protein KinasesSphingolipidosesNuclear ProteinsLymphocyte CooperationRecombinant Fusion ProteinsKineticsGene Expression Regulation, BacterialAntigens, CD40GlucosylceramidaseMitogen-Activated Protein KinasesPlasminogen Activator Inhibitor 2Precursor Cells, B-LymphoidGene ExpressionElectrophoretic Mobility Shift AssayImmunoglobulin GGenes, junCloning, MolecularBlotting, WesternSaccharomyces cerevisiae ProteinsFungal ProteinsImmunoglobulinsUp-RegulationGene Rearrangement, B-LymphocyteTumor Cells, CulturedEnhancer Elements, GeneticDNA Primers