HIV Envelope Protein gp120HIV Envelope Protein gp160HIV Envelope Protein gp41HIV-1Antigens, CD4Viral Envelope Proteinsenv Gene Products, Human Immunodeficiency VirusGene Products, envTransverse SinusesHIV AntibodiesMolecular Sequence DataAmino Acid SequenceAIDS VaccinesEpitopesHIV InfectionsHIVNuclear EnvelopeRecombinant ProteinsCells, CulturedCell LineHIV AntigensAntibodies, NeutralizingVirionVirus InternalizationNeutralization TestsReceptors, CCR5Membrane FusionProtein PrecursorsVirus ReplicationHIV SeropositivityHIV Fusion InhibitorsImmune SystemAntibodies, MonoclonalGlycosylationReceptors, HIVCell FusionProtein BindingCD4-Positive T-LymphocytesMembrane GlycoproteinsRetroviridae Proteins, OncogenicAntibodies, ViralViral ProteinsPerioperative CareT-LymphocytesPeptidesProtein ConformationAcquired Immunodeficiency SyndromeModels, MolecularEnzyme-Linked Immunosorbent AssayMice, Inbred BALB CVirus AssemblyBacteriophage T4HeLa CellsBase SequenceRecombinant Fusion ProteinsHIV-2Receptors, VirusMembrane ProteinsVaccines, SyntheticAnti-HIV AgentsGlycoproteins