The catalytic triad of chymotrypsin is composed of His57,Ser195,and
A) Gly193.
B) Glu103.
C) Asp120.
D) Asp102.

Question

Quizplus · Accepted Answer

The catalytic triad of chymotrypsin is composed of His57, Ser195, and Asp102. Asp102 acts as a proton acceptor from Ser195, allowing for the protonation of His57, which then initiates nucleophilic attack on the peptide bond of the substrate. Therefore, choice D is the correct answer.

The Catalytic Triad of Chymotrypsin Is Composed of His57,Ser195,and