DNA RepairDNADNA DamageDNA ReplicationDNA-Binding ProteinsMolecular Sequence DataBase SequencePlasmidsCell Cycle ProteinsDNA, Single-StrandedS PhaseDNA, ViralAmino Acid SequenceChromatinProtein BindingBinding SitesDNA-Directed DNA PolymeraseCell LineRecombination, GeneticDNA, BacterialMutationCell NucleusHeLa CellsTransfectionNuclear ProteinsPolymerase Chain ReactionMutagenesis, Site-DirectedProtein Structure, TertiaryEscherichia coli