Abelson murine leukemia virusLeukemia Virus, MurineOncogene Proteins v-ablMoloney murine leukemia virusCell Transformation, ViralLeukemia, ExperimentalAKR murine leukemia virusFriend murine leukemia virusGenes, ablThymomaCell Transformation, NeoplasticHelper VirusesCell LineOncogenesGenes, ViralLeukemia Virus, FelineViral ProteinsSarcoma Viruses, FelineB-LymphocytesRauscher VirusMice, Inbred StrainsRetroviridae InfectionsLeukemiaLeukemia Virus, BovineCell Line, TransformedBase SequenceDNA, ViralProtein-Tyrosine KinasesMice, Inbred BALB CDefective VirusesRetroviridaeMice, Inbred AKRLymphocytesMutationLymphomaClone CellsVirus ReplicationProtein KinasesMink Cell Focus-Inducing VirusesRNA-Directed DNA PolymeraseReceptors, VirusLeukemia, Myeloid, AcuteMolecular Sequence DataProvirusesGene Products, gagTumor Virus InfectionsGammaretrovirusVirus IntegrationLeukemia Virus, Gibbon Ape3T3 CellsNucleic Acid HybridizationRNA, ViralCloning, MolecularBlotting, SouthernPreleukemiaViral Envelope ProteinsMinkImmunoglobulin mu-ChainsDNA Restriction EnzymesGene Rearrangement, B-Lymphocyte, Heavy ChainHuman T-lymphotropic virus 1PhosphorylationTransfectionPlasmacytomaGene Products, envRetroviridae Proteins, OncogenicRepetitive Sequences, Nucleic AcidGenetic VectorsAmino Acid SequenceSarcoma Viruses, MurineGenesImmunoglobulin Heavy ChainsVirionLeukemia, Lymphoid