Definition of L Amino Acids

Amino acids are defined as the building blocks of proteins. The amino acids are joined together with the help of peptide linkages. Every amino acid exists in two isomeric forms named L and D forms depending on the possibility of forming stereoisomers around the central carbon atom. The L amino acids are left-handed whereas D amino acids are right-handed. The cells can produce only L amino acids so only they are incorporated into the proteins.


Glycine is known to be the simplest amino acid and has no enantiomer as there is no chiral carbon whereas all other amino acids show stereoisomerism. L amino acid helps in maintaining the structure of the cell and stimulates the production of hormones and several growth factors as well.

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