Figure 1 - full size

 

Figure 1.
Fig. 1. The [DP] catalytic site in the structure of bovine F[1]-ATPase inhibited with azide. The view is in stereo. Catalytically important residues are shown with the difference electron density (F[o] – F[c]) for azide (green mesh, contoured at 3 ) before its inclusion in the model.