peroxidase

American  

[puh-rok-si-deys, -deyz] / pəˈrɒk sɪˌdeɪs, -ˌdeɪz /

noun

Biochemistry.

1. any of a class of oxidoreductase enzymes that catalyze the oxidation of a compound by the decomposition of hydrogen peroxide or an organic peroxide.

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peroxidase British  

/ pəˈrɒksɪˌdeɪs, -ˌdeɪz /

noun

1. any of a group of enzymes that catalyse the oxidation of a compound by the decomposition of hydrogen peroxide or an organic peroxide. They generally consist of a protein combined with haem

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Etymology

Origin of peroxidase

First recorded in 1900–05; peroxide + -ase

Example Sentences

They provide higher stability and lower cost than natural peroxidase, and they are widely used in biomedical research, including biosensors for detection of target molecules in disease diagnostics.

From Science Daily • Oct. 16, 2023

These nanozymes mimic the activity of peroxidase, an enzyme that catalyzes the oxidation of a substrate by using hydrogen peroxide as an oxidizing agent.

From Science Daily • Oct. 16, 2023

You may also want to consider selenium, a trace mineral that’s a cofactor in a free radical-quenching enzyme called glutathione peroxidase.

From New York Times • Aug. 26, 2021

Thomas, P. E., Ryan, D. & Levin, W. An improved staining procedure for the detection of the peroxidase activity of cytochrome P-450 on sodium dodecyl sulfate polyacrylamide gels.

From Nature • Apr. 24, 2018

In the colloid, peroxidase enzymes link the iodine to the tyrosine amino acids in thyroglobulin to produce two intermediaries: a tyrosine attached to one iodine and a tyrosine attached to two iodines.

From Textbooks • Jun. 19, 2013