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 InfectionsHIVMicro-Electrical-Mechanical SystemsNuclear EnvelopeRecombinant ProteinsCells, CulturedCell LineHIV AntigensVirionAntibodies, NeutralizingVirus InternalizationNeutralization TestsReceptors, CCR5Membrane FusionProtein PrecursorsHIV Fusion InhibitorsHIV SeropositivityVirus ReplicationReceptors, HIVGlycosylationCell FusionAntibodies, MonoclonalRetroviridae Proteins, OncogenicProtein BindingMembrane GlycoproteinsViral ProteinsPeptide FragmentsProtein ConformationCD4-Positive T-LymphocytesAntibodies, ViralVirus AssemblyModels, MolecularBacteriophage T4PeptidesAcquired Immunodeficiency SyndromeHeLa CellsHIV-2Recombinant Fusion ProteinsReceptors, VirusBase SequenceAnti-HIV Agents