[Quantum-chemical investigation of tautomerization ways of Watson-Crick DNA base pair guanine-cytosine].

Abstract

A novel physico-chemical mechanism of the Watson-Crick DNA base pair Gua.Cyt tautomerization Gua.Cyt*<---->Gua.Cyt<---->Gua*.Cyt (mutagenic tautomers of bases are marked by asterisks) have been revealed and realized in a pathway of single proton transfer through two mutual isoenergetic transition states with Gibbs free energy of activation 30.4 and 30.6… (More)

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