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. Author manuscript; available in PMC: 2022 Aug 1.
Published in final edited form as: Chem Rev. 2022 Jan 25;122(14):12207–12243. doi: 10.1021/acs.chemrev.1c00915

Figure 16.

Figure 16.

Comparison of the T3 sites in Tyr/Hc enzymes (A) and MCO enzymes (B&C). The O2 binding to the T3 sites inTyr and Hc enzymes form a μ-(η2:η2) peroxo dicopper(II) intermediate while the T3 sites in MCOs bind O2 only in the presence of an additional T2 Cu (C).