The side chains of the amino acids that make up the catalytic triad of chymotrypsin contain all EXCEPT
A) a hydroxyl group.
B) a carboxylic acid.
C) an aromatic group.
D) an imidazole.

Question

Quizplus · Accepted Answer

The catalytic triad of chymotrypsin consists of serine (which has a hydroxyl group), histidine (which has an imidazole group), and aspartate (which has a carboxylic acid group). An aromatic group is not part of the catalytic triad.

The Side Chains of the Amino Acids That Make Up