DeoxyribonucleotidesRibonucleotide ReductasesRibonucleoside Diphosphate ReductaseDeoxycytidine MonophosphateRibonucleotidesDeoxyribonucleosidesThymidine MonophosphateHydroxyureaThymine NucleotidesDeoxyadenine NucleotidesCytosine NucleotidesDeoxyuracil NucleotidesCytidine DiphosphateNucleotidesProtein PrecursorsDeoxyguanine NucleotidesPyrimidine NucleotidesDNA ReplicationKineticsEscherichia coliDNAThioredoxinsMolecular Sequence DataMutationTemplates, GeneticBase SequenceDNA-Directed DNA PolymeraseSubstrate SpecificityOligonucleotidesAmino Acid SequenceOligodeoxyribonucleotidesFree RadicalsAmyloid beta-Protein PrecursorElectron Spin Resonance SpectroscopyEscherichia coli ProteinsRNAAdenosine TriphosphateDNA DamageStructure-Activity RelationshipBacterial ProteinsDNA PrimersEnzyme PrecursorsRNA PrecursorsNucleic Acid PrecursorsAmyloid Precursor Protein SecretasesCell DifferentiationProtein Processing, Post-TranslationalStem Cells