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. 2021 May 17;105(10):4111–4126. doi: 10.1007/s00253-021-11337-4

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© The Author(s) 2021

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Fig. 2 — Catalytic site of PeAAO. View of the active site of PeAAO (PDB entry 3FIM) with FAD depicted in yellow, catalytic His502 and His546 depicted in gray, and Tyr92 (green) and Phe501 (blue) located in the hydrophobic substrate access channel