Fig. 2.
The binding mode of pinoxaden. (A) Final omit Fo-Fc electron density at 2.8-Å resolution for pinoxaden, contoured at 3σ, in two views. (B) Stereographic drawing showing the binding site for pinoxaden. The N domain of one monomer is colored in cyan, and the C domain of the other monomer in green. The side chains of residues in the binding site are shown in yellow and magenta, respectively. Leu1705 is shown and labeled in red, because it is equivalent to a site of resistance mutations in plants. Hydrogen bonds from the inhibitor to the protein are indicated with dashed red lines. (C) Schematic drawing of the interactions between pinoxaden and the CT active site.