Amino acids are the building blocks of proteins and make up peptides. Organic molecules known as amino acids are made up of three groups: an amino group (-NH2), a carboxyl group (-COOH), and a side chain that differs from amino acid to amino acid. Each amino acid has certain qualities that come from its side chain, sometimes referred to as the R-group.
Peptide bonds, which are covalent connections made between an amino acids amino group and its carboxyl group, bind amino acids together to produce peptides. The peptide’s specific properties and functions are determined by its amino acid sequence, which forms a chain-like structure because of this linking.
Peptide composition might differ significantly based on the amino acid sequence. Longer peptides can have dozens or even hundreds of amino acids, whereas short peptides might only have a few. The wide variety of peptides found in nature are the result of these differences in amino acid sequence, and each one has a unique biological function as well as an involvement in a variety of physiological processes.