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G6048

Sigma-Aldrich

Galactokinase human

recombinant, expressed in E. coli

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About This Item

Numéro de classification (Commission des enzymes):
2.7.1.6 (BRENDA, IUBMB)
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Produit recombinant

expressed in E. coli

Niveau de qualité

200

Forme

solution

Activité spécifique

≥1400 unit/μg protein

Poids mol.

42 kDa

Conditions d'expédition

dry ice

Température de stockage

−70°C

Actions biochimiques/physiologiques

Galactokinase catalyzes the phosphorylation of αD-galactose to produce galactose-1-phosphate as part of the Leloir pathway.

Propriétés physiques

N-terminal GST-tagged 42 kDa full length protein

Définition de l'unité

One unit will convert 1.0 picomole of galactose to galactose-1-phosphate per minute at pH 7.4 at 30 °C.

Forme physique

Supplied as a solution in 40 mM Tris-HCl, pH 8.0, 110 mM NaCl, 2.2 mM KCl, 20% glycerol, 3 mM DTT and 10-250 mM imidazole.

Pictogrammes

Health hazardExclamation mark
GHS08,GHS07

Mention d'avertissement

Danger

Mentions de danger

H315,H319,H360D

Classification des risques

Eye Irrit. 2 - Repr. 1B - Skin Irrit. 2

Code de la classe de stockage

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Aurélie Egert et al.
Plant & cell physiology, 53(5), 921-929 (2012-03-23)
Galactokinase (GALK, EC 2.7.1.6) is a cytosolic enzyme with a wide occurrence across the taxonomic kingdoms. It catalyzes the phosphorylation of α-d-galactose (Gal) to α-d-Gal-1-P. The cytotoxicity of free (unphosphorylated) Gal is well documented in plants and causes marked defects.
Nils Janzen et al.
Archives of medical research, 42(7), 608-612 (2011-12-14)
Galactokinase (GALK) deficiency is an autosomal recessive disorder causing cataract formation that can be prevented or mitigated by early diagnosis and galactose-restricted diet. The aim of this retrospective study was to explore whether GALK-deficiency meets the criteria for neonatal mass
Chieh Hsu et al.
Nature communications, 3, 682-682 (2012-02-23)
During evolution, genetic networks are rewired through strengthening or weakening their interactions to develop new regulatory schemes. In the galactose network, the GAL1/GAL3 paralogues and the GAL2 gene enhance their own expression mediated by the Gal4p transcriptional activator. The wiring
Lei Li et al.
Carbohydrate research, 355, 35-39 (2012-05-29)
Galactokinase (GalK), particularly GalK from Escherichia coli, has been widely employed for the synthesis of sugar-1-phosphates. In this study, a GalK from Bifidobacterium infantis ATCC 15697 (BiGalK) was cloned and over-expressed with a yield of over 80 mg/L cell cultures.
Tali Lavy et al.
Genes & development, 26(3), 294-303 (2012-02-04)
A wealth of genetic information and some biochemical analysis have made the GAL regulon of the yeast Saccharomyces cerevisiae a classic model system for studying transcriptional activation in eukaryotes. Galactose induces this transcriptional switch, which is regulated by three proteins:
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