Figure 4From: The inhibition of the mammalian DNA methyltransferase 3a (Dnmt3a) by dietary black tea and coffee polyphenolsInitial screening of the 24 compounds for inhibition of Dnmt3a-C. Dnmt3a-C activity was determined in the presence of 100 μM compound. The control reaction was performed after adding a corresponding volume of DMSO.Back to article page