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. 2024 Jun 28;7:147. doi: 10.1038/s42004-024-01231-1

Fig. 3. Reaction scheme, overlay of HPLC chromatograms and time courses for UGT reactions with sinapic acid (SA).

Fig. 3

a Reaction scheme from sinapic acid to the corresponding 4-O-glucoside catalyzed by UGT72 enzymes (UGT72D1, UGT72D7), or to glucose-1-ester catalyzed by UGT84 members (UGT84A119, UGT84A49). b Overlay of HPLC chromatograms (24 h time point) from UGT84A119/UGT84A49 reactions with sinapic acid at pH 5.0 and 8.0. c Overlaid HPLC chromatograms (24 h time point) from UGT72D1/UGT72D7 reactions with sinapic acid at pH 5.0 and 8.0. d Time courses of product formation in UGT/sinapic acid reactions used for measuring the enzymatic activities. Reactions (100 μL) contained 1.0 mM sinapic acid, 2.0 mM UDP-Glc and 0.0050-0.50 mg mL−1 enzyme in 50 mM potassium phosphate buffer (pH 5.0 or 8.0).