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. Author manuscript; available in PMC: 2019 Jan 19.
Published in final edited form as: Chem Rev. 2018 Jun 22;118(14):6573–6655. doi: 10.1021/acs.chemrev.8b00031

Figure 75.

Figure 75.

Ferric peroxide mechanisms proposed for P450 51A enzymes. (A) Hemiacetal mechanism proposed by Akhtar and associates.274 In that reference, the substrate analog used had a Δ7,8 double bond instead of the Δ8,9 bond in lanosterol 32-aldehyde. (B) Baeyer-Villiger mechanism with acyl intermediate proposed by Fischer et al.273