Prepare stock solutions in 0.1 M Tris-HCl, pH 7.0. While no specific concentration was provided, calculations based on the assay procedure suggest that stock solutions should be in the range of 0.5 - 1.0 mg/ml protein. This aligns with the general recommendation for proteins of a minimum of 1 mg protein/ml. The stock solution can be stored as aliquots at -20°C and should be reasonably stable for several months.
P4234
Pyranose Oxidase from Coriolus sp.
recombinant, expressed in E. coli, ≥2.7 units/mg solid
Synonym(s):
Pyranose: Oxygen 2-Oxidoreductase
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250 UNITS
$346.00
1000 UNITS
$1,360.00
About This Item
CAS Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54
Recommended Products
recombinant
expressed in E. coli
Quality Level
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.[1]
Application
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.[1]
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[4].
Unit Definition
One unit produces 1.0 μmol of hydrogen peroxide per minute at 37 °C, pH 7.0.
Other Notes
Contains glutamate
signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Tien-Chye Tan et al.
Journal of molecular biology, 402(3), 578-594 (2010-08-17)
Flavoenzymes perform a wide range of redox reactions in nature, and a subclass of flavoenzymes carry covalently bound cofactor. The enzyme-flavin bond helps to increase the flavin's redox potential to facilitate substrate oxidation in several oxidases. The formation of the
Purification and Characterization of Pyranose Oxidase from the White Rot Fungus Trametes multicolor
Leitner C, et al.
Applied and Environmental Microbiology, 67(8), 3636-3636 (2001)
The influence of temperature on bioconversion of D-glucose into 2-keto-D-glucose by Pyranose oxidase
Ene MD, et al.
UPB Scientific Bulletin, Series B: Chemistry and Materials Science, 2 (2014)
Purification and characterization of pyranose oxidase from the white rot fungus Trametes multicolor.
C Leitner et al.
Applied and environmental microbiology, 67(8), 3636-3644 (2001-07-27)
We purified an intracellular pyranose oxidase from mycelial extracts of the white rot fungus Trametes multicolor by using ammonium sulfate fractionation, hydrophobic interaction, ion-exchange chromatography, and gel filtration. The native enzyme has a molecular mass of 270 kDa as determined
Tien-Chye Tan et al.
Journal of molecular biology, 409(4), 588-600 (2011-04-26)
Trametes multicolor pyranose 2-oxidase (P2O) is a flavoprotein oxidase that oxidizes d-glucose at C2 to 2-keto-d-glucose by a highly regioselective mechanism. In this work, fluorinated sugar substrates were used as mechanistic probes to investigate the basis of regioselectivity in P2O.
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What is the solution stability for product P4234 after dilution?
1 answer-
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Do you have a protocol for the activity assay used to qualify pyranose oxidase?
Do you have a protocol for the activity assay used to qualify pyranose oxidase?
1 answer-
We do not have a pre-formulated protocol available at the moment. However, for reference, you may find the following publication informative. The publication, "Limited proteolysis of pyranose 2-oxidase results in a stable and active complex" in PeerJ Materials Science 2:e7 (https://doi.org/10.7717/peerj-matsci.7), served as the basis for this assay, utilizing the production of quinoneimine dye to directly reflect the turnover rate of pyranose oxidase.
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