Illustrated Glossary of Organic Chemistry

Chymotrypsin: A serine protease whose substrate is the peptide bond at the carbonyl end of a phenylalanine residue. Chymotrypsin is chemoselective.

Chymotrypsin is chemoselective for the carbonyl end of a phenylalanine residue.


Ribbon structure of chymotrypsin, from the Protein Data Bank. Helix = fuchsia; sheet = yellow; coil = white.


Mechanism for chymotrypsin hydrolysis of a peptide bond.