Phosphotriesters in rat liver deoxyribonucleic acid after the administration of the carcinogen NN-dimethylnitrosamine in vivo.
Biochem J, 1975/3;145(3):475-82.
O'Connor PJ, Marigison GP, Craig AW
PMID: 168868
Impact factor: 3.766
Abstract
After treatment with NN-di[14C]methylnitrosamine, samples of DNA were isolated from rat livers by a conventional phenol procedure and examined for the presence of phosphotriesters. A method of capable of detecting relatively small amounts of 14C-labelled phosphotriesters was developed and used to establish that these products account for 10-12% of the total methylation pattern found after treatment with this agent in vitro. The significance of the presence of phosphotriesters in DNA is discussed.
MeSH terms
Alkylation; Animals; DNA; Dimethylnitrosamine; Esters; Hydrolysis; Liver; Male; Methanol; Nitrosamines; Organophosphorus Compounds; Phosphates; Phosphoric Diester Hydrolases; Rats; Temperature
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