Figure 3 - full size

 

Figure 3.
Structures of the asymmetric unit of the type 1 crystal (a) and the type 2 crystal (b). Side-chains of Lys-33, Thr-34 and Asp-112 in each monomer are presented as ball-and-stick models as in Figure 1. In (b), the non-crystallographic 2-fold rotation axis is perpendicular to the figure plane.

The above figure is reprinted from an Open Access publication published by Oxford University Press: Nucleic Acids Res (2005, 33, 3412-3423) copyright 2005.