1 A peptide has the following sequence YWDCKFHGS Base on the

1. A peptide has the following sequence:- YWDCKFHGS. Base on the peptide sequence, answer the following questions. (2 pts + 1 pt)

a. Which aromatic hydrophobic amino acid/s is/are present in this peptide?

b. Which amino acid/s present in this peptide has/have an extra COOH group (apart from the carboxyl group present in all amino acids)?

Solution

a. Which aromatic hydrophobic amino acid/s is/are present in this peptide?

Tryptophan=W

Phenylalanine=F

b. Which amino acid/s present in this peptide has/have an extra COOH group (apart from the carboxyl group present in all amino acids)?

D= Aspartic acid