Classification of amino acids or types of amino acids based of structure of substituent that is "R" group or side chain of amino acid is discussed herein.
Amino acids are organic compounds which consists of amino group and carboxylic acid functional group. Amino acids are the building blocks of the proteins, DNAs & RNAs.
The classification of amino acids based on the types of the side chain is one of the methods to categorize the various amino acids. Other most important methods of classification is essential vs non-essential amino acids.
Keywords: Amino acid, Amine, Carboxylic acid, side chain.