Enzymatic Phosphorylation of Oxidized Tyrosine Residues Figure 2. [The tyrosine degradation pathway. Alkaptonuria]. GeneReviews NCBI Bookshelf The role of tyrosine hydroxylase dopamine pathway in Parkinson's disease pathogenesis Research Communities by Springer Nature 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 Anti dityrosine(DT DY) monoclonal antibody: JaICA's OXIDATIVE STRESS MARKERS FOR PROTEIN OXIDATION