Figure 2 - full size

 

Figure 2.
Figure 2 Structures at ten different pH and corresponding 2F[o] - F[c] maps. Structures in the region of GluB13 and the sulfate ion are presented and 2F[o] - F[c] maps are contoured at the 0.8 level because of the approximate half-occupancy of the two rotamers of GluB13 and the lower electron density compared with the rest of the structure. Sub-figures correspond to the structures at pH 5.00, 5.53, 5.80, 6.00, 6.16, 6.26, 6.35, 6.50, 6.98 and 9.00, respectively.

The above figure is reprinted by permission from the IUCr: Acta Crystallogr D Biol Crystallogr (2003, 59, 670-676) copyright 2003.