Figure 4 - full size

 

Figure 4.
Figure 4 Stereo diagram of the Zn2+-binding site and buried water molecule. All residues are shown as ball-and-stick models, with water molecules (W6 and W7) and the Zn2+ ion as spheres. Dashed lines indicate hydrogen bonds or coordinations to Zn2+.

The above figure is reprinted by permission from the IUCr: Acta Crystallogr D Biol Crystallogr (1999, 55, 1842-1849) copyright 1999.