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An Oxidized Abasic Lesion as an Intramolecular Source of DNA Adducts

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5'-(2-Phosphoryl-1,4-dioxobutane) (DOB) is a lesion produced in DNA via a variety of damaging agents. The DOB lesion spontaneously generates cis- and trans-but-2-en-1,4-dial (1) via β-elimination. Cis- and trans-but-2-en-1,4-dial forms exocyclic adducts with ... ...