Leukemia Virus, MurineMoloney murine leukemia virusLeukemia Virus, FelineLeukemia Virus, BovineLeukemiaFriend murine leukemia virusLeukemia, ExperimentalAKR murine leukemia virusLeukemia, Myeloid, AcuteHuman T-lymphotropic virus 1Cell LineAbelson murine leukemia virusReceptors, VirusVirus ReplicationLeukemia Virus, Gibbon ApeLeukemia, Lymphocytic, Chronic, B-CellRauscher VirusMolecular Sequence DataRetroviridaeRNA VirusesGene Products, taxRetroviridae InfectionsLeukemia, LymphoidGenes, ViralDNA, ViralVaccinia virusDefective VirusesVirus CultivationEnzootic Bovine LeukosisBase SequenceRNA, ViralLeukemia, Myelogenous, Chronic, BCR-ABL PositiveViral ProteinsVirus AssemblyProvirusesTumor Virus InfectionsLeukemia, T-CellAmino Acid SequenceRNA-Directed DNA PolymeraseGammaretrovirusCell Transformation, ViralMice, Inbred AKRGene Products, gagAntigens, ViralSimian virus 40Virus IntegrationVirus SheddingSarcoma Viruses, MurineCells, CulturedRetroviridae Proteins, OncogenicVirus DiseasesLeukemia-Lymphoma, Adult T-CellOncogenic VirusesHuman T-lymphotropic virus 2DeltaretrovirusVirionGenetic VectorsPrecursor Cell Lymphoblastic Leukemia-LymphomaRepetitive Sequences, Nucleic AcidTransfectionGene Expression Regulation, ViralMice, Inbred StrainsRadiation Leukemia VirusPlant VirusesDNA VirusesSindbis VirusHylobatesGene Products, envMice, Inbred C57BLRNA, MessengerT-LymphocytesAvian leukosis virusMink Cell Focus-Inducing VirusesLeukemia, FelineTranscription, GeneticPolymerase Chain ReactionMeasles virusHTLV-I InfectionsInfluenza A Virus, H1N1 SubtypeGene Products, rexLymphomaLeukemia, Monocytic, AcuteMinkPreleukemiaViral Envelope ProteinsRabies virusLeukemia, Radiation-InducedLeukemia, Hairy CellGenes, pXCatsRecombination, GeneticInfluenza A Virus, H5N1 SubtypeTumor Cells, CulturedTerminal Repeat Sequences3T3 CellsSpecies SpecificityVirus ActivationGenes, envHelper VirusesMice, Inbred BALB C