Figure 3 - full size

 

Figure 3.
Figure 3. Electron densty 2F,-FF,) for the charge relay system. Density nd ydrogen bonds nvolving Ser214 nd Tyr146' 396) of he molecule related by 2-fold local ymmetry are shown.

The above figure is reprinted by permission from Elsevier: J Mol Biol (1985, 184, 703-711) copyright 1985.