Fig. 3.
Crystallographic data for the C2:FMNH− (a) and C2:FMNH−:HPA (b) complexes. The stereo pictures show the fitting of the FMNH− and HPA atoms of the refined models in the unbiased 4-fold averaged electron-density maps (1σ contour level). Carbon is shown in yellow (flavin) or green (HPA), nitrogen is shown in blue, oxygen is shown in red, and phosphorus is shown in purple.