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G6637

Sigma-Aldrich

β-Galactose Dehydrogenase from Pseudomonas fluorescens

recombinant, expressed in E. coli, ammonium sulfate suspension, ≥50 units/mg protein (biuret)

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Synonym(s):
D-Galactose:NAD+ 1-oxidoreductase
CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
NACRES:
NA.54

recombinant

expressed in E. coli

form

ammonium sulfate suspension

specific activity

≥50 units/mg protein (biuret)

shipped in

wet ice

storage temp.

2-8°C

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This Item
L2011L1378A7189
form

ammonium sulfate suspension

form

ammonium sulfate suspension

form

ammonium sulfate suspension

form

ammonium sulfate suspension

specific activity

≥50 units/mg protein (biuret)

specific activity

≥250 units/mg protein (biuret)

specific activity

≥600 units/mg protein

specific activity

≥20 units/mg protein (Lowry)

shipped in

wet ice

shipped in

-

shipped in

-

shipped in

-

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

Application

β-Galactose Dehydrogenase from Pseudomonas fluorescens has been used for competitive inhibition in lectin histochemistry. It has also been used to measure the hydrolysis activity of Haloferax alicantei β-galactosidase on different disaccharides.

Biochem/physiol Actions

β-galactose dehydrogenase catalyzes the oxidation of β-D-galactose to D-galactono-gammalactone.

Unit Definition

One unit will convert 1.0 μmole of D-galactose to D-galactonate per min at pH 8.6 at 25 °C.

Physical form

Suspension in 3.2 M (NH4)2SO4, pH approx. 6.0

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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D K Leung et al.
Proceedings of the National Academy of Sciences of the United States of America, 97(10), 5050-5053 (2000-05-11)
Beta-cyclodextrin (CD) dimers (n = 11) were synthesized and tested against eight enzymes, seven of which were dimeric or tetrameric, for inhibitor activity. Initial screening showed that only L-lactate dehydrogenase and citrate synthase were inhibited but only by two specific
U G Jensen et al.
Clinical chemistry, 47(8), 1364-1372 (2001-07-27)
Classic galactosemia (OMIM 230400) is an inherited disorder in the metabolism of galactose caused by deficiency of the enzyme galactose 1-phosphate uridyl transferase (EC 2.7.7.12). Galactosemia leads to accumulation of galactose and galactose 1-phosphate (gal-1-P) in blood and tissues and
Angel Angelov et al.
The FEBS journal, 272(4), 1054-1062 (2005-02-05)
In Picrophilus torridus, a euryarchaeon that grows optimally at 60 degrees C and pH 0.7 and thus represents the most acidophilic thermophile known, glucose oxidation is the first proposed step of glucose catabolism via a nonphosphorylated variant of the Entner-Doudoroff
D Peltzer et al.
Free radical research, 31 Suppl, S181-S185 (2000-02-29)
Green and white variegated leaves of Coleus blumei, Benth. were separated into albino and green sections and used to determine the distribution of vitamin C and L-galactose dehydrogenase activity, an enzyme supposed to be involved in ascorbate metabolism, in heterotrophic
T E Curey et al.
Analytical biochemistry, 293(2), 178-184 (2001-06-12)
We report the development of a sensor for rapidly and simultaneously measuring multiple sugars in aqueous samples. In this strategy, enzyme-based assays are localized within an array of individually addressable sites on a micromachined silicon chip. Microspheres derivatized with monosaccharide-specific

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