Figure 3.
Ribbon diagram of CYP105N1. (A) The X-ray crystal structures show a typical cytochrome P450 fold. The ligand-free structure is represented in cyan, heme is shown as a red stick model; (B) Overlaid ribbon diagrams of CYP105N1 (cyan), CYP105AB3 ligand-free (green) and CYP105A1 imidazole-bound (magenta) structures.