Figure 4.
Fig. 4. Electron density of RTA R213D in the vicinity of
residue 213. The backbone and sidechains of the R213D
substitution are shown as stereo images in thick ball and stick
and the position of the Arg213 side-chain of the wild-type
enzyme is overlayed and shown in thin ball and stick. The SIGMAA
[33] weighted 2mF[o]- F[c] electron
density using phases from the final model is contoured at 1 level, where
represents the
rms electron density for the unit cell. Contours more than 1.4
Å from any of the displayed atoms have been removed for
clarity. Drawn with MOLSCRIPT[34,35].
The above figure is reprinted
by permission from the Federation of European Biochemical Societies:
Eur J Biochem
(2004,
271,
153-162)
copyright 2004.
F[c] electron
density using phases from the final model is contoured at 1 
level, where