oxidase


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oxidase

 [ok´sĭ-dās]
any of a class of enzymes that catalyze the reduction of molecular oxygen independently of hydrogen peroxide.

ox·i·dase

(ok'si-dās),
Classically, one of a group of enzymes, now termed oxidoreductases (EC class 1), that bring about oxidation by the addition of oxygen to a metabolite or by the removal of hydrogen or of one or more electrons. Oxidase is now used for those cases in which O2 acts as an acceptor (of H or of electrons); those removing hydrogen are now termed dehydrogenases. For individual oxidases, see the specific names.

oxidase

/ox·i·dase/ (ok´sĭ-dās) any enzyme of the class of oxidoreductases in which molecular oxygen is the hydrogen acceptor.

oxidase

(ŏk′sĭ-dās′, -dāz′)
n.
Any of a group of enzymes that catalyze oxidation, especially an enzyme that reacts with molecular oxygen to catalyze the oxidation of a substrate.

ox′i·da′sic adj.

oxidase

[ok′sidās]
Etymology: Gk, oxys, sharp
an enzyme that induces biological oxidation by activating the oxygen in molecules containing the element, such as hydrogen peroxide.

ox·i·dase

(ok'si-dās)
One of a group of enzymes that bring about organic reactions in which O2 acts as an acceptor (of H or of electrons).

oxidase

an enzyme that catalyses a reaction in which oxygen is added to a substance (X) with hydrogen removed and water formed. Thus:

Most oxidases are proteins with metallic groups attached. For example, cytochrome oxidase contains iron and oxidizes cytochrome a in the ELECTRON TRANSPORT SYSTEM of aerobic respiration:

oxidase

any of a class of enzymes that catalyze the reduction of molecular oxygen independently of hydrogen peroxide.

oxidase test
used to identify bacteria that contain cytochrome c oxidase.
References in periodicals archive ?
The efficacy of monoamine oxidase inhibitors (MA01s) for depression is comparable to that of other antidepressants.
Development of lactose biosensor based on [beta]-galactosidase and glucose oxidase immobilized into gelatin.
Pharmacokinetics and pharmacodynamics of febuxostat, a new nonpurine selective inhibitor of xanthine oxidase, in subjects with renal impairment.
Nucleotide sequence of identified bacteria was aligned with the other known or putative Cholesterol oxidase gene sequences available in databases to identify similar sequences.
The NADPH oxidase inhibitor apocynin improves endothelial NO superoxide balance and lowers effectively blood pressure in spontaneously hypertensive rats: comparison to calcium channel blockade.
Oxidase positive, Spot Indole negative, Catalase negative
The sensitive element consists of an optical substrate--a glass slide, a glass/plastic lens or an optical fiber--coated with a matrix containing glucose oxidase as a sensitive and reactive compound, as well as the ruthenium complex.
Endonuclease activity assay of purified phenol oxidase
Interpretation & conclusions: Immobilization of Amaranthus leaf oxalate oxidase on to affixed glass beads provided enormous ease in its reuse for determination of oxalate in urinary and serum samples.
Pea seedlings amine oxidase (PSAO) has been found to have a 100% relative specific activity towards 1,4-diaminobutane, 111% towards 1,5-diaminopentane, 56% towards agmatine and spermidine, 44% towards 1,6-diaminohexane, 30% towards histamine, 8% towards spermine, and no activity towards 1,3-diaminopropane [13].
Rottlerin treatment reduced NADPH oxidase activity, prevented mitochondrial dysfunction and maintained antioxidant environment.