Figure 4 - full size

 

Figure 4.
Figure 4. Stereo representation of simulated-annealing F[o] -F[c] electron density of the D20A- Image structure with residues 18 and 21 omitted from the calculation. The map is contoured at 3 s, and was generated using the program O and rendered using the SwissPDBViewer and POV Ray.

The above figure is reprinted by permission from Elsevier: J Mol Biol (2001, 313, 309-315) copyright 2001.