Compound as reactive (1)
dopamine quinone + a reduced electron donor → an oxidized electron donor + H+ + 2-descarboxy-cyclo-dopa
Compound as product (1)
2 dopamine + oxygen → 2 H2O + 2 dopamine quinone
Reversible reaction (1)
dopamine quinone + L-cysteine ↔ 5-S-cysteinyl dopamine