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Catalysis of the reaction: superoxide + reduced rubredoxin + 2 H+ = H2O2 + rubredoxin. Elemental activities, such as catalysis or binding, describing the actions of a gene product at the molecular level. A given gene product may exhibit one or more molecular functions. Catalysis of the reaction: donor + H2O2 = oxidized donor + 2 H2O. Inhibition of the reactions brought about by dioxygen (O2) or peroxides. Usually the antioxidant is effective because it can itself be more easily oxidized than the substance protected. The term is often applied to components that can trap free radicals, thereby breaking the chain reaction that normally leads to extensive biological damage. Catalysis of the reaction: thioredoxin + NADP+ = thioredoxin disulfide + NADPH + H+. Catalysis of the reaction: 2 glutathione + dehydroascorbate = glutathione disulfide + ascorbate. Catalysis of the reaction: 2 glutathione + NADP+ = glutathione disulfide + NADPH + H+. null Catalysis of the reaction: 2 superoxide + 2 H+ = O2 + H2O2.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: antioxidant activity
Acc: GO:0016209
Aspect: Molecular Function
Desc: Inhibition of the reactions brought about by dioxygen (O2) or peroxides. Usually the antioxidant is effective because it can itself be more easily oxidized than the substance protected. The term is often applied to components that can trap free radicals, thereby breaking the chain reaction that normally leads to extensive biological damage.
Proteins in PDR annotated with:
   This term: 103 [Search]
   Term or descendants: 540 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0016209 - antioxidant activity (interactive image map)
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