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Catalysis of the reaction: superoxide + reduced rubredoxin + 2 H+ = H2O2 + rubredoxin. Catalysis of the reaction: 2-hydroxyisonicotinate + acceptor + H2O = citrazinate + reduced acceptor. Catalysis of an oxidation-reduction (redox) reaction in which a superoxide radical (O2- or O2.-) acts as a hydrogen or electron acceptor. Catalysis of the reaction: isonicotinate + acceptor + H2O = 2-hydroxyisonicotinate + reduced acceptor. Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced. Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic. Catalysis of the reaction: citrazinate + H2O = 2,3,6-trihydroxyisonicotinate + 2 H+ + 2 e-. Catalysis of the reaction: 2 superoxide + 2 H+ = O2 + H2O2.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: oxidoreductase activity, acting on superoxide radicals as acceptor
Acc: GO:0016721
Aspect: Molecular Function
Desc: Catalysis of an oxidation-reduction (redox) reaction in which a superoxide radical (O2- or O2.-) acts as a hydrogen or electron acceptor.
Proteins in PDR annotated with:
   This term: 0
   Term or descendants: 65 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0016721 - oxidoreductase activity, acting on superoxide radicals as acceptor (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle