HIV Envelope Protein gp120HIV Envelope Protein gp160HIV Envelope Protein gp41HIV-1Antigens, CD4Viral Envelope Proteinsenv Gene Products, Human Immunodeficiency VirusGene Products, envEpitopesReceptors, CXCR4HIV AntibodiesMolecular Sequence DataAmino Acid SequenceAIDS VaccinesHIV InfectionsHIVEpitope MappingNuclear EnvelopeRecombinant ProteinsCells, CulturedCell LineHIV AntigensAntibodies, NeutralizingAntibodies, MonoclonalNeutralization TestsVirionVirus InternalizationReceptors, CCR5Membrane FusionProtein PrecursorsPeptide FragmentsGlycosylationHIV SeropositivityVirus ReplicationHIV Fusion InhibitorsReceptors, HIVProtein BindingCell FusionPeptidesMembrane GlycoproteinsRetroviridae Proteins, OncogenicViral ProteinsProtein ConformationAntibodies, ViralModels, MolecularCD4-Positive T-LymphocytesEnzyme-Linked Immunosorbent AssayRecombinant Fusion ProteinsBase SequenceEpitopes, B-LymphocyteVirus AssemblyBacteriophage T4Acquired Immunodeficiency SyndromeHeLa CellsMice, Inbred BALB CVaccines, SyntheticT-LymphocytesHIV-2Receptors, VirusGlycoproteinsMembrane ProteinsBinding Sites