What does peroxidase mean?

Here's a list of possible definitions for the term peroxidase:

Princeton's WordNet

  1. peroxidase(noun)

    any of a group of enzymes (occurring especially in plant cells) that catalyze the oxidation of a compound by a peroxide


  1. peroxidase(Noun)

    Any of a class of enzymes that act on substrates such as hydrogen peroxide and organic hydroperoxides such as lipid peroxides.


  1. Peroxidase

    Peroxidases are a large family of enzymes that typically catalyze a reaction of the form:-+ For many of these enzymes the optimal substrate is hydrogen peroxide, but others are more active with organic hydroperoxides such as lipid peroxides. Peroxidases can contain a heme cofactor in their active sites, or alternately redox-active cysteine or selenocysteine residues. The nature of the electron donor is very dependent on the structure of the enzyme. ⁕For example, horseradish peroxidase can use a variety of organic compounds as electron donors and acceptors. Horseradish peroxidase has an accessible active site, and many compounds can reach the site of the reaction. ⁕Because there is a very closed active site, for an enzyme such as cytochrome c peroxidase, the compounds that donate electrons are very specific. While the exact mechanisms have yet to be elucidated, peroxidases are known to play a part in increasing a plant's defenses against pathogens. Peroxidases are sometimes used as histological marker. Cytochrome c peroxidase is used as a soluble, easily purified model for cytochrome c oxidase. The glutathione peroxidase family consists of 8 known human isoforms. Glutathione peroxidases use glutathione as an electron donor and are active with both hydrogen peroxide and organic hydroperoxide substrates. Gpx1, Gpx2, Gpx3, and Gpx4 have been shown to be selenium-containing enzymes, whereas Gpx6 is a selenoprotein in humans with cysteine-containing homologues in rodents.

U.S. National Library of Medicine

  1. Peroxidase

    A hemeprotein from leukocytes. Deficiency of this enzyme leads to a hereditary disorder coupled with disseminated moniliasis. It catalyzes the conversion of a donor and peroxide to an oxidized donor and water. EC

Matched Categories


  1. Chaldean Numerology

    The numerical value of peroxidase in Chaldean Numerology is: 5

  2. Pythagorean Numerology

    The numerical value of peroxidase in Pythagorean Numerology is: 8

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