Abstract:
Polypeptides (peptides and proteins) are polymers of amino acids connected through
amide bonds also referred as peptide bonds. Peptides and proteins are essential
biomolecules with a wide range of biological functions necessary to maintain the normal
physiology and growth of an organism. The essential functions carried out by peptides
and proteins include but not limited to enzymatic catalysis, molecular recognition, ion or
biomolecule transportation, hormonal activity, immunomodulation, radical scavenging,
cytoskeleton and structural maintenance of the organism.1-4 The polypeptides are
synthesized in living organisms through a multi-step process.