👉 Prolyl is a type of amino acid in the protein family. It is one of the four essential amino acids that play an important role in the synthesis of proteins and can be found in various foods such as meat, poultry, dairy products, fish, eggs, soybeans, wheat, etc. The prolyl group is located in the side chain of a polypeptide chain and it has a specific function to stabilize the peptide bond between amino acids.
