Figure 1 - full size

Figure 1.
FIGURE 1. Stereo images of the apo SsGDH tetramer (A) and monomer (B). The A-monomer is shown with the nucleotide-binding domain in red and the catalytic domain in blue. The position of the GXGXXG motif is highlighted in yellow. Zinc ions are shown as magenta spheres, and the catalytic zinc-coordinated water is shown as a green sphere.In B, the N and C termini of the monomer are indicated by green and red spheres, respectively.