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| DNA (Cytosine-5-)-Methyltransferase DNA Cytosine-5-Methylase | DNA (Cytosine 5) Methyltransferase | Cytosine-5-Methylase, DNA | DNA Cytosine 5 Methylase An enzyme that catalyzes the transfer of a methyl group from S-adenosylmethionine to the 5-position of cytosine or to the 6-position in adenine in mammalian DNA. EC 2.1.1.37. |