Antibody SpecificityAntibodiesAntibodies, BacterialAntibodies, ViralAntibodies, MonoclonalAntibodies, NeutralizingAntibody FormationEpitopesImmunoglobulin GAntibody AffinityCross ReactionsHIV AntibodiesSensitivity and SpecificityEnzyme-Linked Immunosorbent AssayBinding Sites, AntibodyAutoantibodiesImmunoglobulin MFluorescent Antibody TechniqueAntibodies, Anti-IdiotypicAntigen-Antibody ReactionsMolecular Sequence DataNeutralization TestsImmune SeraAmino Acid SequenceImmunizationImmunoglobulin AAntigen-Antibody ComplexRabbitsAntibodies, ProtozoanMice, Inbred BALB CSerumAntibodies, NeoplasmEpitope MappingAntigens, BacterialSubstrate SpecificityAntibodies, AntinuclearImmunoglobulin Fab FragmentsImmunoassayAntigensHybridomasAntibodies, FungalRadioimmunoassayHaptensImmunoglobulin Variable RegionSpecies SpecificityAutoantigensIsoantibodiesImmunoblottingBlotting, WesternPeptidesB-LymphocytesElectrophoresis, Polyacrylamide GelMolecular WeightHIV Envelope Protein gp120Antibodies, BispecificSingle-Chain AntibodiesImmunoglobulin Heavy ChainsRecombinant ProteinsHIV-1ImmunohistochemistryAntibodies, BlockingFluorescent Antibody Technique, IndirectSerum AlbuminHemagglutination Inhibition TestsImmunization, PassiveImmunoenzyme TechniquesAntibodies, HeterophileCell LineAntigens, ViralBase SequenceAntibodies, CatalyticCattleHemagglutination TestsComplement Fixation TestsSeroepidemiologic StudiesTime FactorsVaccinationAntigens, SurfaceAntibodies, Monoclonal, HumanizedImmunoglobulin IsotypesCells, CulturedBacterial VaccinesSerologic TestsAntibodies, AntiphospholipidImmunoglobulinsImmunity, Maternally-AcquiredT-LymphocytesSerum Albumin, BovinePolysaccharides, BacterialImmunodiffusionKineticsAntigens, NeoplasmImmunoglobulin FragmentsImmunoglobulin IdiotypesPeptide LibraryGlycoproteinsSpleenRecombinant Fusion ProteinsAntigens, ProtozoanViral Vaccines