Nucleotide Excision Repair

Source:http://linkedlifedata.com/resource/umls/id/C0524550

GO: A DNA repair process in which a small region of the strand surrounding the damage is removed from the DNA helix as an oligonucleotide. The small gap left in the DNA helix is filled in by the sequential action of DNA polymerase and DNA ligase. Nucleotide excision repair recognizes a wide range of substrates, including damage caused by UV irradiation (pyrimidine dimers and 6-4 photoproducts) and chemicals (intrastrand cross-links and bulky adducts). [PMID:10197977],GO: OBSOLETE. The excision of damaged DNA during pyrimidine-dimer repair. A large multienzyme complex scans the DNA for a distortion in the double helix rather than for a specific base change. Once a bulky lesion is found, the phosphodiester backbone of the abnormal strand is cleaved on both sides of the distortion, and the portion of the strand containing the lesion (an oligonucleotide) is peeled away from the DNA double helix by a DNA helicase enzyme. [ISBN:0815316194],NCI: Nucleotide Excision Repair (NER) mends DNA regions that contain chemica

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