HIV Envelope Protein gp120HIV Envelope Protein gp160HIV Envelope Protein gp41HIV-1Antigens, CD4Viral Envelope Proteinsenv Gene Products, Human Immunodeficiency VirusGene Products, envMolecular Sequence DataReceptors, CXCR4HIV AntibodiesAmino Acid SequenceInterleukin-1 Receptor Accessory ProteinAIDS VaccinesEpitopesHIV InfectionsHIVViral Regulatory and Accessory ProteinsNuclear EnvelopeRecombinant ProteinsCell LineCells, CulturedVirionHIV AntigensProtein BindingAntibodies, NeutralizingAccessory NerveVirus InternalizationVirus ReplicationViral ProteinsNeutralization TestsReceptors, CCR5Receptor, Melanocortin, Type 2Membrane FusionProtein PrecursorsHIV Fusion InhibitorsHIV SeropositivityBacteriophage T4Base SequenceModels, MolecularGlycosylationReceptors, HIVAntibodies, MonoclonalMembrane GlycoproteinsHeLa CellsCell FusionProtein ConformationMembrane ProteinsRecombinant Fusion ProteinsUreaseRetroviridae Proteins, OncogenicBinding SitesVirus AssemblyPeptide FragmentsMutationHIV-2PeptidesProtein Structure, TertiaryHuman Immunodeficiency Virus Proteinsvpr Gene Products, Human Immunodeficiency VirusCD4-Positive T-LymphocytesT-LymphocytesAntibodies, ViralGene Products, vprCell MembraneAcquired Immunodeficiency SyndromeDNA, ViralBacterial ProteinsReceptors, VirusCercopithecus aethiopsEscherichia coliEnzyme-Linked Immunosorbent Assay