| Literature DB >> 23106212 |
Helen B Patrzyc1, Jean B Dawidzik, Edwin E Budzinski, Harold G Freund, John H Wilton, Harold C Box.
Abstract
Reactive oxygen species (ROS) generate a type of DNA damage called tandem lesions, two adjacent nucleotides both modified. A subcategory of tandem lesions consists of adjacent nucleotides linked by a covalent bond. Covalently linked tandem lesions generate highly characteristic liquid chromotography-tandem mass spectrometry (LC-MS/MS) elution profiles. We have used this property to comprehensively survey X-irradiated DNA for covalently linked tandem lesions. A total of 15 tandem lesions were detected in DNA irradiated in deoxygenated aqueous solution, five tandem lesions were detected in DNA that was irradiated in oxygenated solution.Entities:
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Year: 2012 PMID: 23106212 PMCID: PMC3557944 DOI: 10.1667/RR2915.1
Source DB: PubMed Journal: Radiat Res ISSN: 0033-7587 Impact factor: 2.841