| Literature DB >> 2057347 |
G Gasmi1, M Pasdeloup, G Pratviel, M Pitié, J Bernadou, B Meunier.
Abstract
Phosphorus-31 NMR has been applied to the characterization of terminal phosphates on fragments of calf thymus DNA induced by three different nuclease systems: DNase I, DNase II and the artificial nuclease 'Mn-TMPyP/KHSO5'. In this last case, the oxidative damage to deoxyribose leads to two monophosphates esters (at the 3' and 5' ends) on both sides of the cleavage site. This method constitutes a promising approach to visualise the phosphate termini generated in DNA or RNA cleavage by cytotoxic drugs or chemical nucleases and provides a novel insight into the molecular aspects of their mechanism of action.Entities:
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Year: 1991 PMID: 2057347 PMCID: PMC328240 DOI: 10.1093/nar/19.11.2835
Source DB: PubMed Journal: Nucleic Acids Res ISSN: 0305-1048 Impact factor: 16.971