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 ProteinsParticle SizeNuclear EnvelopeRecombinant ProteinsCell LineVirionCells, CulturedProtein BindingHIV AntigensVirus ReplicationViral ProteinsAntibodies, NeutralizingVirus InternalizationAccessory NerveNeutralization TestsReceptors, CCR5Membrane FusionReceptor, Melanocortin, Type 2Protein PrecursorsVirus AssemblyBase SequenceModels, MolecularHeLa CellsHIV Fusion InhibitorsHIV SeropositivityBacteriophage T4Antibodies, MonoclonalGlycosylationProtein ConformationReceptors, HIVMembrane GlycoproteinsMembrane ProteinsCell FusionRecombinant Fusion ProteinsMutationBinding SitesPeptide FragmentsPeptidesRetroviridae Proteins, OncogenicUreaseHuman Immunodeficiency Virus ProteinsHIV-2Protein Structure, TertiaryCell Membranevpr Gene Products, Human Immunodeficiency VirusAntibodies, ViralDNA, ViralCD4-Positive T-LymphocytesT-LymphocytesGene Products, vprCercopithecus aethiopsAcquired Immunodeficiency SyndromeMicroscopy, ElectronReceptors, VirusEscherichia coliBacterial ProteinsEnzyme-Linked Immunosorbent AssayGlycoproteinsGenetic VectorsGenes, env