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Superoxide reductase
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Superoxide reductase : ウィキペディア英語版
Superoxide reductase

Superoxide reductase is an enzyme that catalyzes the conversion of highly reactive and toxic superoxide (O2) into less toxic hydrogen peroxide (H2O2):
:reduced rubredoxin + O2 + 2 H+ \rightleftharpoons rubredoxin + H2O2
:Fe2+ + O2 + 2 H+ \rightleftharpoons Fe3++ H2O2
Hydrogen peroxide in turn is reduced to water by rubrerythrin. The 3 substrates of this enzyme are reduced rubredoxin, superoxide, and H+, whereas its two products are rubredoxin and H2O2.
This enzyme belongs to the family of oxidoreductases, specifically those acting on superoxide as acceptor (only sub-subclass identified to date). The systematic name of this enzyme class is rubredoxin:superoxide oxidoreductase. Other names in common use include neelaredoxin, and desulfoferrodoxin.
==Structural studies==

, 9 structures have been solved for this class of enzymes, with PDB accession codes , , , , , , , , and .

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