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Deoxyguanosine (dG) is a purine nucleoside that upon sequential phosphoylation (kinases) forms dGTP which is used by DNA polymerases and reverse transcriptases to synthesis DNA(s). Deoxyguanosine is the most electron rich of the four canonical bases and includes many nucleophilic sites which are susceptible to oxidative damage. This makes deoxyguanosine and its oxidized derivatives useful reagents to study mechanisms of oxidative damage to nucleosides and nucleotides.
Kasper Broedbaek et. al. Urinary 8-oxo-7,8-dihydro-2?-deoxyguanosine as a biomarker in type 2 diabetes. Free Radical Biology and Medicine. 2011, 51 (8), 1473-1479.
Aaron M Fleming et. al. Copper/H2O2-mediated oxidation of 2'-deoxyguanosine in the presence of 2-naphthol leads to the formation of two distinct isomeric adducts.. Journal of Organic Chemistry. 2011, 76 (19), 7953-7963.