A small peptide was completely hydrolyzed to yield the following set of amino acids; Ala + Arg + Gly + 2 Met + Lys + Ser + Val In addition the peptide was subject to the following tests with the results given. Sanger Reagent - DNP Gly and ,-DNP Lys Carboxypeptidase A - a) Ser b) All the rest Cyanobromide - a) Ala + Gly + Lys + Met b) Met + Val c) Arg + Ser Chymotrypsin - Nothing Released Trypsin - a) Ala + Gly + Lys b) Arg + 2 Met + Val c) Ser