Question

What structural characteristics are common to all the amino acids that are found in
mammalian proteins and draw the structure of the tripeptide Pro-Asp-Lys in the ionic
form that predominates at pH 7. Show all atoms (including hydrogens) as well as
any charges as necessary.

Answer 1

All amino acid are organic molecules contain amino group (-NH2), carboxyl group (-COOH), and a specific side chain (R group) attached to a single carbon atom. In addition, amino acids found in almost all proteins occur in L-form.