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. Author manuscript; available in PMC: 2015 Apr 9.
Published in final edited form as: Chem Rev. 2014 Mar 3;114(7):3659–3853. doi: 10.1021/cr400327t

Figure 210.

Figure 210

Absorption spectra of A. flavus quercetin 2,4-dioxygenase: A) resting enzyme at pH 6, B) free quercetin, C) the ES complex of quercetin 2,4-dioxygenase with quercetin, and D) the product spectrum after exposing the ES complex, C, to O2.