A scientific review presents information about superoxide dismutases and superoxide reductases. The review reveals that the superoxide reductase (SOR) and three very different types of superoxide dismutase (SOD) enzymes are redox-active metalloenzymes that have evolved entirely independently from one another for the purpose of lowering superoxide concentrations. SODs catalyze the disproportionation of superoxide to give O2 and H2O 2, a reaction requiring one proton per superoxide reacted without external reductant. All of the SOR enzymes contain only iron, while the three types of SODs are the nickel-containing SODs (NiSOD), the iron- or manganese-containing SODs (FeSOD and MnSOD), and the copper- and zinc-containing SODs (CuZnSOD).
|Number of pages||65|
|State||Published - Apr 9 2014|
ASJC Scopus subject areas
- Chemistry (all)