GammaretrovirusRetroviridae InfectionsEndogenous RetrovirusesDNA ContaminationLeukemia Virus, MurineXenotropic murine leukemia virus-related virusLeukemia Virus, Gibbon ApeReceptors, VirusMoloney murine leukemia virusMolecular Sequence DataGene Products, gagChiropteraNIH 3T3 CellsCell LinePhylogenyEvolution, MolecularReplication Protein ABase SequenceDNA, ViralViral ProteinsRNA, ViralDNA Replication TimingDNA-Binding ProteinsPlasmidsMutationRepliconReplication Protein CDNA HelicasesGenome, ViralAmino Acid SequenceS PhaseHIV-1Gene Expression Regulation, ViralEscherichia coliCells, CulturedTranscription, GeneticDNAHeLa CellsMice, Inbred BALB CDNA-Directed DNA PolymeraseMice, Inbred C57BLCell Cycle ProteinsRecombination, GeneticViral Nonstructural ProteinsProtein BindingAntiviral AgentsOrigin Recognition ComplexDNA, Single-StrandedGenes, ViralNucleic Acid ConformationCell CycleDNA DamageDNA, BacterialHydroxyureaVero CellsChromosomes, BacterialCloning, MolecularProliferating Cell Nuclear AntigenDNA RepairTransfectionCell NucleusBacterial ProteinsNuclear ProteinsSaccharomyces cerevisiaeRNA ReplicaseGenetic VectorsHost-Pathogen InteractionsRNA, MessengerDNA PrimersKineticsSaccharomyces cerevisiae ProteinsBinding SitesChromatinDNA, FungalDisease Models, AnimalTime FactorsAphidicolinCricetinaeViral Plaque AssayMutagenesisDNA PrimaseTemplates, GeneticDNA, CircularCell DivisionPromoter Regions, GeneticVirionCytopathogenic Effect, ViralDnaB HelicasesDNA Polymerase IIIGene DeletionRecombinant ProteinsCytomegalovirusRestriction MappingTrans-ActivatorsSequence DeletionGenomic InstabilityModels, GeneticRecombinant Fusion ProteinsMurine hepatitis virusSpecies Specificity