Figure 5 - full size

 

Figure 5.
Fig. 5. Relaxed stereo ribbon diagrams of hK6 (top panel), bovine trypsin (1CE5; middle panel), and mouse glandular kallikrein 13 (mK13) (1AO5; lower panel). Orientation is intended to show the active site cleft with locations of catalytic triad (His57, Asp102, and Ser195), S1 site (Asp192), and bound benzamidine inhibitor (if present). Also indicated are the locations of the autolysis sites in hK6 and bovine trypsin. The two canonical autolysis sites in the mouse kallikreins are indicated using the structure of mK13. Also shown are the locations of the loop regions 92-102 (blue), 141-152 (magenta), and 172-178 (green) that border the active site.

The above figure is reprinted by permission from the ASBMB: J Biol Chem (2002, 277, 24562-24570) copyright 2002.