Viral Envelope ProteinsGenes, envGene Products, envMolecular Sequence DataHIV Envelope Protein gp120Amino Acid SequenceNuclear Envelopeenv Gene Products, Human Immunodeficiency VirusHIV-1Base SequenceEndogenous RetrovirusesCell LineHIV Envelope Protein gp41Genes, ViralLeukemia Virus, MurineLeukemia Virus, FelineCloning, MolecularRetroviridae InfectionsNeutralization TestsPhylogenyVirionViral ProteinsVirus InternalizationCell FusionMembrane FusionVirus ReplicationMutationDNA, ViralAntigens, CD4HIV AntibodiesReceptors, VirusFriend murine leukemia virusSequence Homology, Amino AcidRetroviridaeSpleen Focus-Forming VirusesSequence Analysis, DNAProvirusesGiant CellsRNA, ViralHIV Envelope Protein gp160GlycoproteinsSimian immunodeficiency virusRetroviridae ProteinsGenetic VariationLeukemia, ExperimentalCornified Envelope Proline-Rich ProteinsDengue VirusReceptors, CCR5PlasmidsCatarrhiniAIDS VaccinesViral Fusion ProteinsRecombination, GeneticGenetic VectorsAntibodies, ViralAntibodies, NeutralizingGenome, ViralSequence AlignmentParainfluenza Virus 1, HumanHIVHeLa CellsTransfectionViral Structural ProteinsEscherichia coliHIV InfectionsPolymerase Chain ReactionEpitopesPregnancy ProteinsCell MembraneSequence Homology, Nucleic AcidMoloney murine leukemia virusAntigens, ViralEvolution, MolecularCells, CulturedAKR murine leukemia virusGenesVaccinia virusPhenotypeVirus AttachmentMink Cell Focus-Inducing VirusesVirus AssemblyGenes, BacterialRecombinant Fusion ProteinsReceptors, HIVBacterial ProteinsDNA PrimersCercopithecus aethiopsDengueRestriction MappingMacaca mulattaVirulenceMicroscopy, ElectronRecombinant ProteinsOpen Reading FramesProtein PrecursorsEncephalitis Virus, JapaneseMembrane ProteinsSpecies SpecificityPeptide FragmentsProtein Binding