https://www.selleckchem.com/pr....oducts/monomethyl-au
The excision of DNA lesions by human nucleotide excision repair (NER) has been extensively studied in human cell extracts. Employing DNA duplexes with fewer than 200 bp containing a single bulky, benzo[a]pyrene-derived guanine lesion (B[a]P-dG), the NER yields are typically on the order of ∼5-10%, or less. Remarkably, the NER yield is enhanced by a factor of ∼6 when the B[a]P-dG lesion is embedded in a covalently closed circular pUC19NN plasmid (contour length of 2686 bp) rather than in the same plasmid linearized b
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