Leukemia Virus, Gibbon ApeHylobatesSarcoma Virus, Woolly MonkeyLeukemia Virus, MurineReceptors, VirusLeukemia Virus, FelineRetroviridaeSodium-Phosphate Cotransporter Proteins, Type IIIPhosphate Transport ProteinsRetroviruses, SimianMoloney murine leukemia virusSodium-Phosphate Cotransporter ProteinsLeukemia Virus, BovineGammaretrovirusHominidaeGenetic VectorsLeukemiaCell LineMolecular Sequence DataFriend murine leukemia virusLeukemia, ExperimentalAKR murine leukemia virusBase SequenceAmino Acid SequenceCricetinaeLeukemia, Myeloid, Acute3T3 CellsViral Envelope ProteinsRauscher VirusHylobatidaeTransduction, GeneticRetroviridae InfectionsApe DiseasesHuman T-lymphotropic virus 1Gene Products, envRecombinant Fusion ProteinsHematopoietic Stem CellsCloning, MolecularDNA-(Apurinic or Apyrimidinic Site) LyaseAbelson murine leukemia virusDNA, ViralLeukemia, Lymphocytic, Chronic, B-CellVirus ReplicationGorilla gorillaLeukemia, LymphoidRNA VirusesRNA, ViralGene Products, taxPongo pygmaeusGenes, ViralSpecies SpecificityPan paniscusRepetitive Sequences, Nucleic AcidVaccinia virusEnzootic Bovine LeukosisDefective VirusesVirus Cultivation