A polypeptide was treated with a certain enzyme to yield the following amino acid sequences. What enzyme was used to induce the observed fragmentations?
Val-Pro-Phe Leu-Ser-Lys-Glu-Trp Arg-Ile-Ser-Ser-Leu-Tyr

Polypeptide

A molecule consisting of a chain of amino acids linked by peptide bonds, and is the building block of proteins.

Amino Acid Sequences

The order in which amino acids are linked together by peptide bonds in a protein or peptide.

Enzyme

Biological catalysts which accelerate chemical reactions in living organisms by lowering the activation energy.