Antibodies, NeutralizingAmino Acid MotifsHIV AntibodiesBinding SitesHIV Envelope Protein gp120Antigens, CD4Neutralization TestsHIV-1Molecular Sequence DataAntibodiesAntibody SpecificityAntibodies, ViralAntibodies, MonoclonalAntibodies, BacterialAmino Acid SequenceAntibody FormationBase SequenceProtein BindingAntibody AffinityBinding Sites, AntibodyFluorescent Antibody TechniqueAntibodies, Anti-IdiotypicEpitopesModels, MolecularCell LineNucleotide MotifsBinding, CompetitiveAntibodies, NeoplasmAntibodies, ProtozoanProtein Structure, TertiaryPromoter Regions, GeneticAntibodies, AntinuclearTranscription FactorsKineticsCross ReactionsRecombinant ProteinsSequence Homology, Amino AcidDNA-Binding ProteinsProtein ConformationMutationSequence AlignmentImmunoglobulin MAutoantibodiesRecombinant Fusion ProteinsDNAAntibodies, FungalCloning, MolecularRabbitsMutagenesis, Site-DirectedConserved SequenceMice, Inbred BALB CAntigen-Antibody ReactionsTranscription, GeneticAntibodies, BispecificEscherichia coliCells, CulturedImmunoglobulin GSingle-Chain AntibodiesImmunoglobulin Fab FragmentsAntigen-Antibody ComplexAntibodies, BlockingPeptide FragmentsStructure-Activity RelationshipTransfectionEpitope MappingCattleElectrophoresis, Polyacrylamide GelPeptidesBacterial ProteinsConsensus SequenceLigandsAntibodies, CatalyticBlotting, WesternMolecular WeightAntibodies, HeterophileFluorescent Antibody Technique, IndirectCarrier ProteinsGene Expression RegulationRNA, MessengerCell MembraneHybridomasImmune SeraImmunoglobulin ACrystallography, X-RayMembrane ProteinsAntibodies, Monoclonal, HumanizedNuclear ProteinsProtein Structure, SecondaryImmunoblottingDNA PrimersProtein Interaction Domains and MotifsEnzyme-Linked Immunosorbent AssayHeLa CellsImmunizationTumor Cells, CulturedAntigensPlasmidsAntibodies, AntiphospholipidProteinsAntigens, Bacterial