Human thymine DNA glycosylase (hTDG) efficiently excises 5-carboxylcytosine (5caC), a key oxidation product of 5-methylcytosine in genomic DNA, in a recently discovered cytosine demethylation pathway.
Cytosine methylation at CpG dinucleotides produces m⁵CpG, an epigenetic modification that is important for transcriptional regulation and genomic stability in vertebrate cells. However, m⁵C ...
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