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. 2021 Aug 11;8(1):72. doi: 10.1186/s40643-021-00425-y

Fig. 4.

Fig. 4

Reactions of promiscuous methyltransferases for small molecule production. a Caffeate O-methyltransferases (COMT) readily accept structurally similar compounds, such as caffeate, 3,4-dihydroxybenzyl alcohol (3,4-DDBA) and resveratrol. b Juvenile hormone acid O-methyltransferase (JHAMT) can methylate C12–C16 fatty acid. Refer to Table 1 for more information on the enzymes