Question

An octapeptide was hydrolyzed and the amino acids separated. Its amino acid composition was Ala (2); Val (1); Lys (2); Met (1); Asp (1); Gly (1). After incubation with FDNB and hydrolysis, 2.4-dinitrophenylalanine was detected. Treatment with cyanogen bromide, which cleaves at M, resulted in two fragments: pentapeptide containing two K residues and a tripeptide containing V, G, and A. The residues are not listed in any particular order. After treatment with trypsin, which cleaves at R and K, there were three fragments: two dipeptides and MGAV. What is the sequence of the octapeptide? Use the one-letter abbreviations for the amino acids, and do not use dashes. octapeptide sequence:

          An octapeptide was hydrolyzed and the amino acids separated. Its amino acid composition was Ala (2); Val (1); Lys (2); Met (1); Asp (1); Gly (1). After incubation with FDNB and hydrolysis, 2.4-dinitrophenylalanine was detected. Treatment with cyanogen bromide, which cleaves at M, resulted in two fragments: pentapeptide containing two K residues and a tripeptide containing V, G, and A. The residues are not listed in any particular order. After treatment with trypsin, which cleaves at R and K, there were three fragments: two dipeptides and MGAV. What is the sequence of the octapeptide? Use the one-letter abbreviations for the amino acids, and do not use dashes.
octapeptide sequence:

Added by Miguel S.

Question

Please give Ace some feedback