Multiple choice

Which of the following amino acid residues are specifically recognised by chymotrypsin during peptide bond cleavage?

  1. Phe
  2. Trp
  3. Tyr
  4. Leu
  5. Val

  1. 1, 2 and 3

  2. 1, 3 and 5

  3. 2, 3 and 4

  4. 2, 4 and 5

  5. 3, 4 and 5
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A Correct answer
Explanation

Chymotrypsin catalyses the hydrolysis of only those peptide bonds in which the carbonyl group is contributed by either a phe, trp or tyr residue.

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