Tyrosine

Tyrosine (Tyr or Y) is an amino acid present in proteins.

Structure of tyrosine

Like all of the amino acids, tyrosine is formed from the COOH group and the NH₂group which are involved in peptide bonds. Its side chain is an aromatic ring to which a hydroxyl group is bonded. It is a polar, aromatic amino acid.

Function of tyrosine

Tyrosine is a non-essential amino acid produced by the body from phenylalanine.

Tyrosine can undergo post-translational modifications such as phosphorylation.