Figure 146.
(A) Reactions of the ferric or ferrous F33Y-CuBMb model with either H2O2 (peroxide shunt) or O2, respectively, showing a new X-band EPR signal at g ā 2, having the hyperfine (due to H-atoms) structure shown. (B) The experimental data can be simulated and matches well with the expected EPR signal for a Tyr radical species. Adapted from ref 1121. Copyright 2014 American Chemical Society.