Leukemia Virus, MurineMoloney murine leukemia virusLeukemia Virus, FelineLeukemia Virus, BovineLeukemiaFriend murine leukemia virusLeukemia, ExperimentalAKR murine leukemia virusLeukemia, Myeloid, AcuteHuman T-lymphotropic virus 1Virus ReplicationCell LineAbelson murine leukemia virusReceptors, VirusLeukemia, Lymphocytic, Chronic, B-CellLeukemia Virus, Gibbon ApeRauscher VirusRetroviridaeRNA VirusesRetroviridae InfectionsMolecular Sequence DataGene Products, taxLeukemia, LymphoidGenes, ViralDNA, ViralVaccinia virusDefective VirusesVirus CultivationEnzootic Bovine LeukosisRNA, ViralViral ProteinsLeukemia, Myelogenous, Chronic, BCR-ABL PositiveBase SequenceVirus AssemblyTumor Virus InfectionsImmune SystemProvirusesLeukemia, T-CellAmino Acid SequenceAntigens, ViralT-LymphocytesRNA-Directed DNA PolymeraseMice, Inbred AKRGene Products, gagGammaretrovirusCell Transformation, ViralSimian virus 40Virus DiseasesVirus IntegrationVirus SheddingMice, Inbred C57BLCells, CulturedSarcoma Viruses, MurineGenetic VectorsRetroviridae Proteins, OncogenicMice, Inbred StrainsLeukemia-Lymphoma, Adult T-CellOncogenic VirusesVirionDeltaretrovirusMice, Inbred BALB CHuman T-lymphotropic virus 2Gene Expression Regulation, ViralPrecursor Cell Lymphoblastic Leukemia-LymphomaRepetitive Sequences, Nucleic AcidRadiation Leukemia VirusGene Products, envPlant VirusesDNA VirusesSindbis VirusHylobatesTransfectionSpleenMeasles virusAvian leukosis virusMink Cell Focus-Inducing VirusesLeukemia, FelineInfluenza A Virus, H1N1 SubtypeTranscription, GeneticLymphomaViral Envelope ProteinsHTLV-I InfectionsPolymerase Chain ReactionRabies virusLeukemia, Monocytic, AcuteGene Products, rexAntibodies, ViralRecombination, GeneticPreleukemiaInfluenza A Virus, H5N1 SubtypeLeukemia, Radiation-InducedRNA, MessengerLeukemia, Hairy CellSpecies SpecificityGenes, pXTerminal Repeat SequencesCatsVirus Activation3T3 CellsB-Lymphocytes