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. Author manuscript; available in PMC: 2015 Dec 14.
Published in final edited form as: Phys Chem Chem Phys. 2010;12(20):5353–5368. doi: 10.1039/b925496j

Scheme 2.

Scheme 2

Prototropic equilibria of one-electron oxidized guanine in 1-methyl guanine including the cation radical (G•+), the mono- deprotonated species, G(N2-H)•, in syn and anti- conformers with respect to the N3 atom). The numbering scheme shown here is followed in this work involving the theoretical calculations with 1-Me-dGuo.