Figure 4 - full size

 

Figure 4.
Fig. 4. Stereo diagram of the peptide substrate bound to TEV (C151A) protease. A ribbon model of the enzyme active-site cleft and a ball-and-stick model of the peptide substrate are overlaid on difference electron density contoured at 1.5 from an omit map. The carbon atoms in the substrate and the catalytic triad residues in the protease are colored yellow and green, respectively.

The above figure is reprinted by permission from the ASBMB: J Biol Chem (2002, 277, 50564-50572) copyright 2002.