Figure 2.
Figure 2 The catalytic triad of PPE. (a) 2F[o] - F[c] map
contoured at 3.5 (blue)
shows atomic resolution of active-site residues of the final
model (SUL1: sulfate). (b) 2F[o] - F[c] map of anisotropic
B-factor model with the HN 1
omitted contoured at 2.5 (blue).
F[o] - F[c] map is contoured at 2.5 (red).
(c) Thermal ellipsoid representation of active-site residues was
made with ORTEX 7e (McArdle, 1995[McArdle, P. (1995). J. Appl.
Cryst. 28, 65.]; Burnett & Johnson, 1996[Burnett, M. N. &
Johnson, C. K. (1996). ORTEP III: Oak Ridge Thermal Ellipsoid
Plot Program for Crystal Structure Illustrations. Report
ORNL-6895. Oak Ridge National Laboratory, Tennessee, USA.]).
Putative hydrogen bonds are shown as dotted lines.
The above figure is reprinted
by permission from the IUCr:
Acta Crystallogr D Biol Crystallogr
(2000,
56,
520-523)
copyright 2000.
(blue)
shows atomic resolution of active-site residues of the final
model (SUL1: sulfate). (b) 2F[o] - F[c] map of anisotropic
B-factor model with the HN 
1
omitted contoured at 2.5