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The process of restoring DNA after damage. Genomes are subject to damage by chemical and physical agents in the environment (e.g. UV and ionizing radiations, chemical mutagens, fungal and bacterial toxins, etc.) and by free radicals or alkylating agents endogenously generated in metabolism. DNA is also damaged because of errors during its replication. A variety of different DNA repair pathways have been reported that include direct reversal, base excision repair, nucleotide excision repair, photoreactivation, bypass, double-strand break repair pathway, and mismatch repair pathway. The repair of alkylation damage, e.g. the removal of the alkyl group at the O6-position of guanine by O6-alkylguanine-DNA alkyltransferase (AGT). The removal of an alkyl group from one or more nucleotides within an DNA molecule. Any cellular metabolic process involving deoxyribonucleic acid. This is one of the two main types of nucleic acid, consisting of a long, unbranched macromolecule formed from one, or more commonly, two, strands of linked deoxyribonucleotides. The covalent alteration of one or more nucleotide sites in DNA, resulting in a change in its properties. A change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating damage to its DNA from environmental insults or errors during metabolism.

View Gene Ontology (GO) Term

GO TERM SUMMARY

Name: DNA dealkylation involved in DNA repair
Acc: GO:0006307
Aspect: Biological Process
Desc: The repair of alkylation damage, e.g. the removal of the alkyl group at the O6-position of guanine by O6-alkylguanine-DNA alkyltransferase (AGT).
Proteins in PDR annotated with:
   This term: 20 [Search]
   Term or descendants: 20 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0006307 - DNA dealkylation involved in DNA repair (interactive image map)

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