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G7907

Galactose Oxidase from Dactylium dendroides

≥30 units/mg solid

Synonym(s):

D-Galactose:oxygen 6-oxidoreductase

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150 units
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€182.00

About This Item

CAS Number:
9028-79-9
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-843-7
MDL number:
MFCD00131118
EC Number:
1.1.3.9 (BRENDA, IUBMB)
Specific activity:
≥30 units/mg solid
Biological source:
fungus (Dactylium dendroides)

€182.00

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biological source

fungus (Dactylium dendroides)

Quality Segment

200

form

lyophilized

specific activity

≥30 units/mg solid

storage temp.

−20°C

General description

Galactose oxidase is an extracellular copper-containing enzyme, secreted by the deuteromycete fungus Dactylium dendroides. It catalyzes the oxidation of a range of primary alcohols, including D-galactose, to the corresponding aldehyde, with reduction of oxygen to hydrogen peroxide.
Galactose oxidase is a member of radicalcoupled copper oxidases family. It is a fungal secretory enzyme.

Application

Galactose oxidase may be used as an analytical tool for the specific determination of D-galactose in blood plasma, plant extracts, and phospholipids. It could be used for the characterization of terminal D-galactoside units in several polymers. It may also be useful in the determination of lactose.
Galactose Oxidase from Dactylium dendroides has been used as a component for galactose oxidase treatment of arabinogalactan. It has also been used to co-immobilise with peroxidase for the preparation of a biosensor for galactose detection.

Biochem/physiol Actions

Galactose oxidase catalyzes the coversion of D-galactose to D-galacto-hexodialdose.
2-Deoxy-D-galactose, lactose, melibiose, raffinose and stachyose react with galactose oxidase in the peroxidase:o-tolidine system.
Essentially no oxidation of D-glucose, L-galactose, L-arabinose or D-glucuronate has been observed.
The specificity for galactose and other sugars is similar to that described by Avigad.
Galactose oxidase has several applications in bioanalytics and histology. This free radical enzyme possess high substrate specificity.

Physical form

Lyophilized, contains buffer salts and stabilizer

Preparation Note

Chromatographically purified

Other Notes

One unit will produce a ΔA425 of 1.0 per min at pH 6.0 at 25 °C, in a peroxidase and o-tolidine system. Reaction volume = 3.4 mL. Light path = 1 cm.

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Galactose Oxidase from Dactylium dendroides ≥30 units/mg solid

Sigma-Aldrich

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Sigma-Aldrich

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Sigma-Aldrich

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Glycerol 3-phosphate Oxidase from Enterococcus sp. recombinant, expressed in E. coli, lyophilized powder

Sigma-Aldrich

SAE0051

Glycerol 3-phosphate Oxidase from Enterococcus sp.

description

≥30 units/mg solid

description

lyophilized powder, ≥3,000 units/g solid

description

Type X-S, lyophilized powder, 100,000-250,000 units/g solid (without added oxygen)

description

recombinant, expressed in E. coli, lyophilized powder

biological source

fungus (Dactylium dendroides)

biological source

fungus (Dactylium dendroides)

biological source

-

biological source

-

specific activity

≥30 units/mg solid

specific activity

≥3,000 units/g solid

specific activity

100,000-250,000 units/g solid (without added oxygen)

specific activity

≥35 unit/mg solid

form

lyophilized

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

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pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H334

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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