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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: donor + H2O2 = oxidized donor + 2 H2O. Catalysis of the reaction: iodide + H2O2 = iodine + 2 H2O. Catalysis of an oxidation-reduction (redox) reaction in which the peroxide group acts as a hydrogen or electron acceptor.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: iodide peroxidase activity
Acc: GO:0004447
Aspect: Molecular Function
Desc: Catalysis of the reaction: iodide + H2O2 = iodine + 2 H2O.
Synonyms:
  • iodoperoxidase (heme type)
  • iodide:hydrogen-peroxide oxidoreductase activity
  • iodide peroxidase-tyrosine iodinase activity
  • thyroid peroxidase activity
  • iodotyrosine deiodase activity
  • iodotyrosine deiodinase activity
  • TPO activity
  • tyrosine iodinase activity
  • iodinase activity
  • monoiodotyrosine deiodinase activity
  • thyroperoxidase activity
Proteins in PDR annotated with:
   This term: 2 [Search]
   Term or descendants: 2 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0004447 - iodide peroxidase activity (interactive image map)
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