AKR murine leukemia virusLeukemia Virus, MurineMice, Inbred AKRMoloney murine leukemia virusViral Envelope ProteinsFriend murine leukemia virusLeukemia, ExperimentalAbelson murine leukemia virusLeukemia Virus, FelineCell LineReceptors, VirusRetroviridae InfectionsRauscher VirusGene Products, envMolecular Sequence DataLeukemia Virus, BovineVirus ReplicationVirionAmino Acid SequenceRetroviridaeGenes, ViralVirus AssemblyDNA, ViralLeukemiaViral ProteinsRetroviridae Proteins, OncogenicBase SequenceVaccinia virusGenetic VectorsRNA-Directed DNA PolymeraseMink Cell Focus-Inducing VirusesAntigens, ViralTumor Virus InfectionsRNA, ViralGene Products, gagHIV Envelope Protein gp120ProvirusesRNA VirusesDefective VirusesGenes, envGammaretrovirusLeukemia Virus, Gibbon Ape3T3 CellsVirus IntegrationNeutralization TestsMice, Inbred StrainsAntibodies, ViralVirus CultivationSindbis VirusWest Nile virusCell FusionLeukemia, Myeloid, AcuteHIV-1Human T-lymphotropic virus 1Epitopes