A tetrapeptide (example Val-Gly-Ser-Ala
) with green
marked amino end (L-Valine
) and blue
marked carboxyl end (L-Alanine
Peptides are organic chemical molecules. They are polymers made from linking amino acids together in a certain order. The link between one amino acid residue and the next is known as an amide bond or a peptide bond.
Linking peptides together gives proteins, which are also known as Polypeptides.