Peptides are short polymers of amino acid monomers linked by peptide bonds. They may be distinguished from proteins on the basis of size, typically containing below 50 monomer units. A peptide is made by joining some healthy proteins. If the amount of amino acids is below about 50 these molecules are named peptides while larger sequences are called proteins. The healthy proteins are coupled by way of a peptide bond, an exclusive linkage the place that the nitrogen atom of one protein binds to the carboxyl carbon atom of someone else.
