TET-mediated active DNA demethylation: mechanism, function and beyond

A key mode of regulating DNA methylation is through active demethylation driven by TET-mediated oxidation of 5-methylcytosine (5mC). This Review discusses our latest understanding of the mechanisms and regulation of active DNA demethylation, and the roles of active demethylation (and the oxidized 5mC intermediates) in gene regulation, genome stability, development and disease.

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