Figure 6
From: QM/MM study of the reaction mechanism of sulfite oxidase

Results of the quantum refinements of sulfite oxidase with (a) MPD, (b) MPH and (c) MPO. The 2mFo – DFc maps are contoured at 1.0 σ (gray) and the mFo – DFc maps are contoured at +3.0 σ (green) and −3.0 σ (red).