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G7400

Sigma-Aldrich

Galactose Oxidase from Dactylium dendroides

lyophilized powder, ≥3,000 units/g solid

Synonym(s):

D-Galactose:oxygen 6-oxidoreductase

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About This Item

CAS Number:
9028-79-9
Enzyme Commission number:
1.1.3.9 (BRENDA, IUBMB)
EC Number:
232-843-7
MDL number:
MFCD00131118
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

fungus (Dactylium dendroides)

form

lyophilized powder

specific activity

≥3,000 units/g solid

storage temp.

−20°C

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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.

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.

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.

Unit Definition

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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Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H334

Precautionary Statements

P261 - P284 - P501

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

G7400-10KU-PW:
G7400-1KU:
G7400-10KU:
G7400-1KU-PW:
G7400-BULK:
I-3702:
G7400-VAR:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Yuling Sun et al.
Biomacromolecules, 22(6), 2595-2603 (2021-05-07)
Antifreeze glycoproteins (AFGPs) are able to bind to ice, halt its growth, and are the most potent inhibitors of ice recrystallization known. The structural basis for AFGP's unique properties remains largely elusive. Here we determined the antifreeze activities of AFGP
Bei Yue et al.
Frontiers in pharmacology, 12, 774560-774560 (2021-11-20)
Irinotecan (CPT11), a broad-spectrum cytotoxic anticancer agent, induces a series of toxic side-effects. The most conspicuous side-effect is gastrointestinal mucositis, including nausea, vomiting, and diarrhea. A growing body of evidence indicates that bacteria β-glucuronidase (GUS), an enzyme expressed by intestinal
A R Shatzman et al.
Journal of bacteriology, 130(1), 455-463 (1977-04-01)
The effects of pH and growth density on the amount of an extracellular enzyme, galactose oxidase, synthesized by the fungus Dactylium dendroides were studied. Growth at a pH below 6.7 caused a decrease in the ability of the organism to
Grant E Henderson et al.
Bioconjugate chemistry, 22(5), 903-912 (2011-03-15)
The site-specific modification of proteins is expected to be an important capability for the synthesis of bioconjugates in the future. However, the traditional repertoire of reactions available for the direct modification of proteins suffers from lack of specificity, necessitating costly
Biocatalytic desymmetrization of an atropisomer with both an enantioselective oxidase and ketoreductases.
Bo Yuan et al.
Angewandte Chemie (International ed. in English), 49(39), 7010-7013 (2010-08-18)
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