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. 1996 Jan-Feb;9(1):3-7.
doi: 10.1021/tx950126n.

An adduct between peroxynitrite and 2'-deoxyguanosine: 4,5-dihydro-5-hydroxy-4-(nitrosooxy)-2'-deoxyguanosine

T Douki  1 , J Cadet, B N Ames
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An adduct between peroxynitrite and 2'-deoxyguanosine: 4,5-dihydro-5-hydroxy-4-(nitrosooxy)-2'-deoxyguanosine

T Douki et al. Chem Res Toxicol. 1996 Jan-Feb.

Abstract

The reactivity of peroxynitrite (OONO-) with DNA is of interest because it is is released during chronic inflammation, a major contributor to cancer. Peroxynitrite was found to undergo homolytic addition to the C4-C5 double bond of 2'-deoxyguanosine with formation of 4,5-dihydro-5-hydroxy-4-(nitrosooxy)-2'-deoxyguanosine (nox-dG). This adduct may be a useful marker in the study of the chemical processes associated with the mutagenicity of peroxynitrite.

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