Figure 2 - full size

 

Figure 2.
Fig. 2. Mimetic inhibitors of thrombin. (a) FPAM, (b) DAPA, (c) FPAM 1. Special restraints applied to non-amino-acid groups during refinement to maintain geometry: arrow, bond distance; dotted, angle distance, double arrow, planar 1,4 distance and NB--B 1 --B3--B4, B2--B3--B5--NB in DAPA.

The above figure is reprinted by permission from the IUCr: Acta Crystallogr D Biol Crystallogr (1995, 51, 550-559) copyright 1995.