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P4234

Sigma-Aldrich

Pyranose Oxidase from Coriolus sp.

recombinant, expressed in E. coli, ≥2.7 units/mg solid

Synonym(s):
Pyranose: Oxygen 2-Oxidoreductase
CAS Number:
Enzyme Commission number:
MDL number:
NACRES:
NA.54

Quality Level

recombinant

expressed in E. coli

form

powder

specific activity

≥2.7 units/mg solid

shipped in

wet ice

storage temp.

−20°C

General description

Pyranose oxidase (P2O), a homotetrameric protein consists of a covalently bound flavin adenine dinucleotide (FAD). It is seen mostly among wood-degrading basidiomycetes.

Application

Pyranose Oxidase from Coriolus sp. has been used in the enzymatic oxidation of D-glucose (DG). It has also been used as a component in oxygen scavenging system (OSS) to increase the lifetime of the fluorophores.

Packaging

250, 1000 units in poly bottle

Biochem/physiol Actions

Pyranose oxidase (P2O) can be used in clinical chemistry to determine 1,5-anhydro-d-glucitol marker, used for glycemic control in diabetes patients.
Pyranose oxidase (P2O) catalyzes the oxidation of aldopyranoses at position C-2 to yield the corresponding 2-ketoaldoses. The in vivo substrates of P2O are thought to be D-glucose, D-galactose, and D-xylose. They are oxidized to 2-keto-D-glucose (D-arabino-hexos-2-ulose, 2-dehydro-D-glucose), 2-keto-D-galactose (D-lyxo-hexos-2-ulose, 2-dehydro-D-galactose), and 2-keto-D-xylose (D-threopentos-2-ulose, 2-dehydro-D-xylose), respectively. Pyranose oxidase has significant activity with carbohydrates such as, L-sorbose, D-glucono-1,5-lactone, and D-allose. When pyranose oxidase catalyzes the oxidation of aldopyranoses, electrons are transferred to molecular oxygen which results in the formation of hydrogen peroxide.

Unit Definition

One unit produces 1.0 μmol of hydrogen peroxide per minute at 37 °C, pH 7.0.

Other Notes

Contains glutamate

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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