Leukemia Virus, MurineMoloney murine leukemia virusLeukemia Virus, FelineLeukemia Virus, BovineLeukemiaFriend murine leukemia virusLeukemia, ExperimentalAKR murine leukemia virusAvian Sarcoma VirusesLeukemia, Myeloid, AcuteHuman T-lymphotropic virus 1Rous sarcoma virusVirus ReplicationCell LineAbelson murine leukemia virusReceptors, VirusLeukemia Virus, Gibbon ApeLeukemia, Lymphocytic, Chronic, B-CellRetroviridaeRauscher VirusGenes, ViralRNA VirusesMolecular Sequence DataGene Products, taxRetroviridae InfectionsCell Transformation, ViralLeukemia, LymphoidDNA, ViralDefective VirusesRNA, ViralViral ProteinsVirus CultivationVaccinia virusBase SequenceGene Products, gagEnzootic Bovine LeukosisVirus AssemblyRNA-Directed DNA PolymeraseLeukemia, Myelogenous, Chronic, BCR-ABL PositiveProvirusesTumor Virus InfectionsLeukemia, T-CellAmino Acid SequenceAvian leukosis virusGammaretrovirusVirus IntegrationMice, Inbred AKRAntigens, ViralSarcoma, AvianSimian virus 40Oncogenic VirusesRetroviridae ProteinsSarcoma Viruses, MurineVirionRetroviridae Proteins, OncogenicRepetitive Sequences, Nucleic AcidVirus SheddingCells, CulturedGenetic VectorsGene Expression Regulation, ViralVirus DiseasesCell Transformation, NeoplasticLeukemia-Lymphoma, Adult T-CellHuman T-lymphotropic virus 2DeltaretrovirusPrecursor Cell Lymphoblastic Leukemia-LymphomaTransfectionRadiation Leukemia VirusGene Products, envMice, Inbred StrainsPlant VirusesChick EmbryoDNA VirusesSindbis VirusHylobatesOncogene Protein pp60(v-src)Transcription, GeneticMink Cell Focus-Inducing VirusesLeukemia, FelineViral Envelope ProteinsT-LymphocytesMeasles virusRecombination, GeneticHTLV-I InfectionsInfluenza A Virus, H1N1 SubtypeTerminal Repeat SequencesGenes, gagGene Products, rexLymphomaLeukemia, Monocytic, AcuteHelper VirusesPreleukemiaPolymerase Chain ReactionRabies virusLeukemia, Radiation-InducedLeukemia, Hairy CellGenes, pXNucleic Acid HybridizationInfluenza A Virus, H5N1 Subtype3T3 Cells