Functions Aside from being a proteinogenic amino acid, tyrosine has a special role by virtue of the phenol functionality. Its hydroxy group is able to form the ester linkage, with phosphate in particular. Phosphate groups are transferred to tyrosine residues by way of protein kinases. This is one of the post-translational modifications. Phosphorylated tyrosine occurs in proteins that are part of signal transduction processes.
functions aside from being a proteinogenic amino acid tyrosine has a special role by virtue of the phenol functionality its hydroxy group is able to form the ester linkage with phosphate in particular phosphate groups are transferred to tyrosine residues by way of protein kinases this is one of the post-translational modifications phosphorylated tyrosine occurs in proteins that are part of signal transduction processes