Figure 5 - full size

 

Figure 5.
Fig. 5. The solvent-accessible surface of the bound conformation of UCN-01 (purple) is shown with the solvent-accessible surface of Chk1 (green mesh) in the Chk1·UCN-01 complex. The shape complementarity between this rigid inhibitor and the binding site is very high, and the large amount of non-polar buried surface area in the complex provides the energy for a very strong interaction.

The above figure is reprinted by permission from the ASBMB: J Biol Chem (2002, 277, 46609-46615) copyright 2002.