Catalase. It catalyzes the decomposition of hydrogen peroxide into water and oxygen.
2H2O2 -> 2H2O + O2
One molecule of catalase can break 40 million molecules of hydrogen peroxide each second.
Catalase A ubiquitous heme protein that catalyzes the dismutation of hydrogen peroxide into molecular oxygen and water.
catalase, another enzyme in the peroxisome, in turn uses this H2O2 to oxidize other substrates, including phenols, formic acid, formaldehyde, and alcohol, by means of the peroxidation reaction: ...
Peroxisomes are vesicles that contain enzymes which remove hydrogen from (oxidize) a variety of different compounds and pass the hydrogen to oxygen, producing hydrogen peroxide (H2O2). Hydrogen peroxide is toxic but the enzyme catalase converts ...
High levels of two oxygen toxicity defense enzymes, superoxide dismutase and catalase, are also found in D. radiodurans.
being formed from hydrogen peroxide via the action of catalase.
The Biology Project
Department of Biochemistry and Molecular Biophysics
The University of Arizona
January 19, 1999
Contact the Development Team ...
function to rid the cell of toxic substances, such as hydrogen peroxide, or other metabolites and contain enzymes concerned with oxygen utilization such as D-amino acid oxidase and urease oxidase . The peroxisome contains the enzyme catalase which ...
 See also: Enzyme, Trans, Enzymes, Cells, Action
  
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