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. 2021 Jun 11;12:673337. doi: 10.3389/fpls.2021.673337

Figure 4.

Figure 4

Comparison of the enzymatic efficiency of the recombinant LaPT2 protein toward different flavonoid substrates. (A) Chemical structures of the representative flavonoid substrates tested in the present study. (B) The conversion rate of the recombinant LaPT2 protein toward different flavonoid substrates. (C) Apparent Km values of the recombinant LaPT2 protein toward different flavonoid substrates. m/z is for mass-to-charge ratio, NI is for negative-ion mode, and PI is for positive-ion mode. The enzymatic assays were performed with technical triplicates in (B,C).