4QC7:
reference: Differential stabilities and sequence-dependent base pair opening dynamics of watson-crick base pairs with 5-hydroxymethylcytosine, 5-formylcytosine, or 5-carboxylcytosine., Szulik MW, Pallan PS, Nocek B, Voehler M, Banerjee S, Brooks S, Joachimiak A, Egli M, Eichman BF, Stone MP, Biochemistry. 2015 Feb 10;54(5):1294-305. doi: 10.1021/bi501534x. Epub 2015 Jan, 29. PMID: 25632825

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