alpha-amino-acid residue anion L-tyrosine residue O(4)-phospho-L-tyrosine residue O(4)-phosphonato-L-tyrosine(2-) residue An alpha-amino-acid residue anion obtained by deprotonation of the phosphate OH groups of O(4)-phospho-L-tyrosine residue; major speices at pH 7.3. CHEBI:82620 L-tyrosine-phosphate residue CHEBI:61978 L-tyrosine-O-phosphate(2-) residue O(4)-phosphonato-L-tyrosine(2-)