Figure 1 - full size

 

Figure 1.
Fig. 1. Inhibitors of NS3–NS4A serine protease and titration experiments. (a) Chemical structures of phenethylamide (compound 1) and hexapeptide DEDifEChaC-OH (compound 2) inhibitors. (b and c) Selected region of the HSQC spectra of NS3p showing the well-resolved R123 NH signal after the addition of different amounts of compounds 1 and 2, respectively.

The above figure is reprinted by permission from Elsevier: J Mol Biol (2009, 385, 1142-1155) copyright 2009.