Question: Estimate the sequence of hexapeptide on the basis of the following data. When the sequence is not known, a comma separates the amino acids.
Amino acid composition: (2R, A, S, V,Y)
Amino-terminal analysis of the hexapeptide: A
Trypsin digestion: (R, A, V) and (R, S, Y)
Carboxypeptidase A digestion: no digestion
Chymotrypsin digestion: (A, R, V, Y ) and (R, S)