HIV Envelope Protein gp120HIV Envelope Protein gp160HIV Envelope Protein gp41HIV-1Antigens, CD4Viral Envelope Proteinsenv Gene Products, Human Immunodeficiency VirusGene Products, envReceptors, CXCR4HIV AntibodiesMolecular Sequence DataAmino Acid SequenceAIDS VaccinesEpitopesHIV InfectionsHIVNuclear EnvelopeRecombinant ProteinsCells, CulturedCell LineHIV AntigensAntibodies, NeutralizingVirionVirus InternalizationNeutralization TestsCytokine Receptor gp130Receptors, CCR5Membrane FusionHIV Fusion InhibitorsProtein PrecursorsVirus ReplicationGlycosylationHIV SeropositivityReceptors, HIVAntibodies, MonoclonalMembrane GlycoproteinsCell FusionProtein BindingRetroviridae Proteins, OncogenicViral Proteinsgp100 Melanoma AntigenPeptide FragmentsBacteriophage T4Protein ConformationAntibodies, ViralModels, MolecularPeptidesCD4-Positive T-LymphocytesVirus AssemblyAcquired Immunodeficiency SyndromeHeLa CellsGlycoproteinsRecombinant Fusion ProteinsBase SequenceHIV-2Receptors, VirusEnzyme-Linked Immunosorbent AssayMembrane ProteinsAnti-HIV Agents