Superoxide Dismutase - Reaction

Reaction

The SOD-catalysed dismutation of superoxide may be written with the following half-reactions :

  • M(n+1)+-SOD + O2− → Mn+-SOD + O2
  • Mn+-SOD + O2− + 2H+ → M(n+1)+-SOD + H2O2.

where M = Cu (n=1) ; Mn (n=2) ; Fe (n=2) ; Ni (n=2).

In this reaction the oxidation state of the metal cation oscillates between n and n+1.

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