If Watson–Crick and Hoogsteen sites of guanine are blocked, hydrogen bonding with cytosine is via N2 and N3

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Roland K. O. Sigel, Eva Freisinger and Bernhard Lippert


Abstract

A novel hydrogen bonding scheme between cytosine and guanine nucleobases is observed if both N1 and N7 positions of the guanine are blocked by a metal entity and a methyl group, respectively.


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