ProvirusesEndogenous RetrovirusesLeukemia Virus, MurineDNA, ViralVirus IntegrationBase SequenceGenes, ViralRetroviridaeAKR murine leukemia virusMammary Tumor Virus, MouseTerminal Repeat SequencesCell LineMice, Inbred AKRRepetitive Sequences, Nucleic AcidMolecular Sequence DataHost-Pathogen InteractionsRecombination, GeneticVirus ReplicationMoloney murine leukemia virusReticuloendotheliosis virusRetroviridae InfectionsHost-Parasite InteractionsDNA Restriction EnzymesAvian leukosis virusLeukemia Virus, FelineDefective VirusesHelper VirusesLeukemia, ExperimentalRNA, ViralCloning, MolecularGenes, envAmino Acid SequenceMice, Inbred StrainsHost SpecificityGenes, polMink Cell Focus-Inducing VirusesAvian LeukosisGenes, gagTranscription, GeneticHIV-1Genome, ViralThymus NeoplasmsGene Expression Regulation, ViralNucleic Acid HybridizationGenetic VectorsBacterial ProteinsCell Transformation, ViralLymphomaViral ProteinsMutationToxoplasmaPhylogenyLeukemia Virus, BovineVirus LatencyBlotting, SouthernVirionVirulenceHeLa CellsGene Products, gagCells, CulturedTransfectionSpumavirusViral Envelope ProteinsBacterial AdhesionThymomaVirulence FactorsRetroviruses, SimianPlasmidsSpecies SpecificityRestriction MappingPolymerase Chain ReactionVirus ActivationTheropithecusSequence Homology, Nucleic AcidOncogenesRetroviridae Proteins, OncogenicSequence Analysis, DNADNA PrimersDNA, NeoplasmRNA, Transfer, ProBetaretrovirusGammaretrovirusDNA, RecombinantSequence AlignmentMinkTumor Virus InfectionsMice, Inbred BALB CChromosome MappingKanamycin KinaseGene Expression RegulationAvian Sarcoma VirusesEnzootic Bovine LeukosisReceptors, VirusChickensRNA-Directed DNA PolymeraseCatsDeoxyribonuclease EcoRILymphoma, T-CellMacrophagesProtozoan Proteins