oxidase

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Related to Oxidases: Dehydrogenases, Oxygenases, Peroxidases

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

(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.

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:

References in periodicals archive ?
The bacterial cell utilizes a battery of copper detoxification and exclusion mechanisms of which multicopper oxidase (CueO) is an integral component.
For examination of the expressions of p47phox (a subunit of NADPH oxidase) and 4-hydroxynonenal (4-HNE) in HSCs in the mouse liver, a double fluorescent staining was performed as described elsewhere [12].
Hebert, "NADPH oxidases, reactive oxygen species, and the kidney: friend and foe," Journal of the American Society of Nephrology, vol.
Gp91phox (Nox2) is a main component of NADPH oxidase, and if gp91phox is stimulated, then [O.sup.-.sub.2] (active oxygen) will be generated [3].
NADPH oxidase deficiency has been seen predominantly as an immunodeficiency, characterized by an inability to mount an inflammatory response.
L-Glutamate oxidase (LGOX; EC 1.4.3.11) belongs to the family of oxidoreductases specifically those acting on the CH-NH2 group of donors with oxygen as acceptor.
Husain, "Potential of plant polyphenol oxidases in the decolorization and removal of textile and non-textile dyes," Journal of Environmental Sciences, vol.
Leto, "Involvement of Rac1 in activation of multicomponent Nox1- and Nox3-based NADPH oxidases," Molecular and Cellular Biology, vol.
Then, to discover the possible contribution of IMP to ROS generation, and to clear the effects of IMP on membrane components of NADPH oxidase, we also measured renal cortical mRNA expressions of p22phox, p47phox, p67phox, gp91phox and proteins of p47phox, gp91phox.
This step is followed by the oxidation of the produced glucose or galactose catalysed by glucose oxidase (GOD, EC 1.1.3.4) or galactose oxidase (GAO, EC 1.1.3.9), respectively (Scheme 1).