Serine Proteases

Serine proteases are characterized by a catalytic triad of Ser, His, and Asp.They work in pairs of Ser-His and His-Asp. All of the catalytic steps are carried out by the dyad Ser and His.

There are three sets of images here.

1. Chymotrypsin (View)
2. Tryspin-Trypsin Inhibitor (View)
3. Comparison of serine protease folds (View)