Figure 3 - full size

 

Figure 3.
Fig. 3. Schematic drawing of the crystallographic asymmetric unit based on the molecular­replacement solution. The asymmetric unit consists of a trigonal arrangement of dimers and has point­group symmetry D3 (32), with the local threefold axis parallel to the crystallographic a axis. The directions of the dyads in each dimer (the monomers are ditinguished by thin and thick lines) are indicated with respect to the crystallographic b and c axes.

The above figure is reprinted by permission from the IUCr: Acta Crystallogr D Biol Crystallogr (1997, 53, 364-370) copyright 1997.