Figure 2 - full size

 

Figure 2.
Figure 2. (a) Quality of the 2 F[o]−F[c] omit map (contoured at 1σ level) around the active site Glu237 after 50 cycles of positional refinement, omitting a stretch of residues around it from the refinement and electron density map calculation. (b) A representative electron density map showing the quality of the 2F[o]−F[c] electron density map contoured at 1σ level.

The above figure is reprinted by permission from Elsevier: J Mol Biol (1999, 288, 999-0) copyright 1999.