TPCKTPCK and TLCKTLCK are irreversible inhibitors of serine proteases. One of these inhibits trypsin and the other chymotrypsin. Complete the sentences to explain which is which.

Match the words in the left column to the appropriate blanks in the sentences on the right.

A. Ala chymotrypsin Val Phe Lys Leu trypsin TLCKTLCK is an analog of the amino acid T L C K is an analog of the amino acid

B. Val and therefore a better inhibitor of chymotrypsin. and therefore a better inhibitor of T L C K is an analog of the amino acid Val and therefore a better inhibitor of chymotrypsin..

C. TPCKTPCK is an analog of the amino acid T P C K is an analog of the amino acid Lys and therefore a better inhibitor of trypsin.

D. and therefore a better inhibitor of T P C K is an analog of the amino acid Lys and therefore a better inhibitor of trypsin.. trypsin returned