Catalytic mechanism of the tyrosinase reaction toward the Tyr98 residue in the caddie protein PLOS Biology Enzymatic Phosphorylation of Oxidized Tyrosine Residues Radiolysis Studies of Oxidation and Nitration of Tyrosine and Some Other Biological Targets by Peroxynitrite Derived Radicals Colorimetric and visual detection of tyrosine based on its copper catalyzed enzymatic oxidation to dopamine and subsequent reductive formation of colored gold nanoparticles using copper ions Microchimica Acta Springer Nature Link