Figure 1. A putative cycling of cytidine derivatives via methylation and oxidative methylation. Where: C = Cytosine, 5mC = Methyl cytosine, 5hmC = 5-Hydroxycytosine, 5fC = 5-Formylcytosine and 5caC = 5-Carboxycytosine, BER = Base Excision Repair, TDG = Thymine DNA glycosylase, DNMT = DNA methyltransferase and TET = Ten-eleven translocation. Modified from [29],[33],[34].
