Antibodies, NeutralizingHIV AntibodiesHIV Envelope Protein gp120Antigens, CD4Binding Sites, AntibodyBinding SitesNeutralization TestsImmunoglobulin Fab FragmentsHIV-1Antibodies, MonoclonalAntibody AffinityAntibodiesAntigensImmunoglobulin Variable RegionHaptensMolecular Sequence DataAntibody SpecificityAntigen-Antibody ComplexEpitopesAmino Acid SequenceImmunoglobulin Heavy ChainsBase SequenceAntigens, BacterialModels, MolecularAntibodies, ViralAntigen-Antibody ReactionsImmunoglobulin FragmentsAntibodies, BacterialAntigens, NeoplasmProtein ConformationAntibody FormationAntigens, SurfaceAntigens, ViralAntibodies, Anti-IdiotypicProtein BindingImmunoglobulin GAntibodies, BispecificCross ReactionsFluorescent Antibody TechniqueImmunoglobulin Light ChainsReceptors, Antigen, B-CellHybridomasReceptors, AntigenEnzyme-Linked Immunosorbent AssayCell LineAntigens, Polyomavirus TransformingMice, Inbred BALB CImmunoglobulin IdiotypesAntigens, ProtozoanBinding, CompetitiveImmunoglobulin MRecombinant ProteinsT-LymphocytesB-LymphocytesAntigens, Viral, TumorAutoantibodiesComplementarity Determining RegionsNitrohydroxyiodophenylacetateKineticsCamelids, New WorldPeptide LibraryAntibodies, ProtozoanSingle-Chain AntibodiesAntigens, CDHLA AntigensEpitope MappingRabbitsAntigens, FungalHistocompatibility Antigens Class IIHLA-DR AntigensAntigens, HelminthRecombinant Fusion ProteinsAntibodies, AntinuclearReceptors, Antigen, T-CellCloning, MolecularImmunoglobulin Fc FragmentsMutationAntibodies, NeoplasmElectrophoresis, Polyacrylamide GelProtein Structure, TertiaryPeptidesCells, CulturedH-2 AntigensProtein EngineeringCarcinoembryonic AntigenImmunoglobulinsImmune SeraEscherichia coliAntibodies, FungalLymphocyte ActivationAntibody DiversityDNAImmunizationPeptide FragmentsSequence Homology, Amino AcidLewis Blood-Group SystemMolecular WeightPromoter Regions, GeneticTumor Cells, CulturedSurface Plasmon Resonance