Thymine NucleotidesMegaloblastsThymineAnemia, MegaloblasticLeukemia, LymphoidMethotrexateNucleotidesThymine DNA GlycosylaseMolecular Sequence DataUracilPolymorphism, Single NucleotideDNABase SequenceAdenine NucleotidesPyrimidine DimersDeoxyribonuclease (Pyrimidine Dimer)Amino Acid SequenceGuanine NucleotidesBromouracilNucleic Acid ConformationEscherichia coliPentoxylPurine NucleotidesCytosineOsmium TetroxideCloning, MolecularDNA RepairMutationPyrimidine NucleotidesEndodeoxyribonucleasesDNA, BacterialThymidineUltraviolet RaysOligodeoxyribonucleotidesAdenineKineticsGuanineSequence Analysis, DNANucleotides, CyclicGuanine Nucleotide Exchange FactorsPotassium PermanganateSequence Homology, Nucleic AcidOligonucleotidesXeroderma PigmentosumNervous System DiseasesXeroderma Pigmentosum Group A ProteinSkin PigmentationNeurologic ManifestationsSkin