G7907
Galactose Oxidase from Dactylium dendroides
≥30 units/mg solid
Synonyma:
D-Galactose:oxygen 6-oxidoreductase
Přihlásitk zobrazení cen stanovených pro organizaci a smluvních cen
About This Item
Doporučené produkty
biological source
fungus (Dactylium dendroides)
Quality Level
form
lyophilized
specific activity
≥30 units/mg solid
storage temp.
−20°C
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General description
Galactose oxidase is a member of radicalcoupled copper oxidases family. It is a fungal secretory enzyme.
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 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.
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.
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.
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.
Galactose oxidase has several applications in bioanalytics and histology. This free radical enzyme possess high substrate specificity.
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.
Physical form
Lyophilized, contains buffer salts and stabilizer
Preparation Note
Chromatographically purified
inhibitor
Č. produktu
Popis
Stanovení ceny
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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Zákazníci si také prohlíželi
Development of an immunoassay for larch arabinogalactan and its use in the detection of larch arabinogalactan in rat blood
Groman E V and Gou D
Carbohydrate Research, 301(1-2), 69-76 (1997)
Copper metalloenzymes
Comprehensive Natural Products II (2010)
Oliver Spadiut et al.
Microbial cell factories, 9, 68-68 (2010-09-15)
The microbes Escherichia coli and Pichia pastoris are convenient prokaryotic and eukaryotic hosts, respectively, for the recombinant production of proteins at laboratory scales. A comparative study was performed to evaluate a range of constructs and process parameters for the heterologous
Sarah E Deacon et al.
Chembiochem : a European journal of chemical biology, 12(4), 593-601 (2011-01-26)
Galactose oxidase (GO) displays broad primary alcohol substrate specificity and so offers potential for engineering new substrate specificity by directed evolution. Producing variant libraries of sufficient complexity ideally requires expression of functional protein in a host such as Escherichia coli.
Avgousta Ioannou et al.
Chemical communications (Cambridge, England), 47(40), 11228-11230 (2011-09-15)
Galactose oxidase (GOase) was shown to oxidise several C2/C3 fluorinated galactose analogues. Interestingly, the enzyme was able to distinguish between the 2,3-tetrafluorinated galactose and its epimeric glucose analogue, and this represents the first reported biotransformation of a heavily fluorinated sugar.
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