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. 2022 Nov 9;28(72):e202202428. doi: 10.1002/chem.202202428

Figure 4.

Figure 4

(a) Time course of 4‐methoxybenzoic acid conversion into 4‐hydroxybenzoic acid by CYP199A4 isoforms. (b) HPLC analysis of the amount of 4‐hydroxybenzoic acid product (RT=5.8 min) generated by the CYP199A4 isoforms over 240 minutes. (c) Time course of 4‐methylthiobenzoic acid conversion into the corresponding sulfoxide by CYP199A4 isoforms. (d) HPLC analysis of the amount of the 4‐methylsulfinylbenzoic acid product (RT=4.7 min) generated by the CYP199A4 isoforms over 240 minutes. No sulfone (sulfone RT=6.9 min) was detected. Note that in the HPLC analysis the internal standard and substrate peaks are not shown in the Figures above (see Figure S13 and S14 for further details and the full chromatograms).