ImmunoglobulinsImmunoglobulin GImmunoglobulin AImmunoglobulin MImmunoglobulin Heavy ChainsImmunoglobulins, IntravenousGenes, ImmunoglobulinImmunoglobulin Light ChainsImmunoglobulin kappa-ChainsImmunoglobulin EImmunoglobulin Variable RegionImmunoglobulin A, SecretoryImmunoglobulin mu-ChainsImmunoglobulin IsotypesImmunoglobulin lambda-ChainsImmunoglobulin Fc FragmentsImmunoglobulin DImmunoglobulin Constant RegionsB-LymphocytesSequence Homology, Amino AcidRecombinant Fusion ProteinsImmunoglobulin Fab FragmentsProtein Interaction Domains and MotifsImmunoglobulin Class SwitchingImmunoglobulin gamma-Chainssrc Homology DomainsImmunoglobulin FragmentsImmunoglobulin J-ChainsBase SequenceProtein BindingImmunoglobulin AllotypesRecombinant ProteinsBinding SitesReceptors, Polymeric ImmunoglobulinProtein ConformationCloning, MolecularSequence AlignmentAntibodies, BacterialImmunoglobulin Joining RegionMolecular Sequence DataEnzyme-Linked Immunosorbent AssayProtein Structure, SecondaryAntibody SpecificityReceptors, Antigen, B-CellAntibodies, MonoclonalMutagenesis, Site-DirectedMyeloma ProteinsCrystallography, X-RayDNA-Binding ProteinsGenes, Immunoglobulin Heavy ChainSomatic Hypermutation, ImmunoglobulinDNAMembrane ProteinsPlasmacytomaCell LineStructure-Activity RelationshipPDZ DomainsTransfectionImmunoglobulin delta-ChainsDimerizationAmino Acid MotifsModels, MolecularImmunoglobulin alpha-ChainsImmunoglobulin Switch RegionPeptide FragmentsAntibodies, Anti-IdiotypicTranscription FactorsAntibodies, ViralCarrier ProteinsImmunoglobulin IdiotypesEscherichia coliKineticsCell MembraneSequence DeletionBacterial Proteinsgamma-GlobulinsConserved SequenceAmino Acid SequenceFluorescent Antibody TechniqueSecretory ComponentMutationMice, Inbred BALB CRabbitsAgammaglobulinemiaAntibody FormationDNA PrimersEpitopesSignal TransductionReceptors, FcDNA, ComplementaryTranscription, GeneticCells, CulturedAntigen-Antibody ComplexImmunoglobulin Gm AllotypesProtein FoldingAntibodiesStaphylococcal Protein AImmunization, PassiveColostrumElectrophoresis, Polyacrylamide Gel