PMID: 22488769

Authors:

Zhao L, Christov PP, Kozekov ID, Pence MG, Pallan PS, Rizzo CJ, Egli M, Guengerich FP

Title:

Replication of N(2) ,3-Ethenoguanine by DNA Polymerases.

Journal:

Angew Chem Int Ed Engl. 2012 Apr 4. doi: 10.1002/anie.201109004.

Abstract:

Damaged goods: The unstable DNA adduct N(2) ,3-ethenoguanine, a product of both exposure to the carcinogen vinyl chloride and of oxidative stress, was built into an oligonucleotide, using an isostere strategy to stabilize the glycosidic bond. This modification was then used to examine the cause of mutations by DNA polymerases, in terms of both the biochemistry of the lesion and a structure of the lesion within a polymerase.