G0413
β(1→4)-Galactosidase, positionally specific from Streptococcus pneumoniae
recombinant, expressed in E. coli, buffered aqueous solution
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CAS Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.32
Recommended Products
recombinant
expressed in E. coli
Quality Level
form
buffered aqueous solution
specific activity
≥6 units/mg protein
packaging
vial of 0.06 unit
UniProt accession no.
shipped in
wet ice
storage temp.
2-8°C
Gene Information
human ... GLB1(2720)
Related Categories
General description
β-Galactosidase is present in bacteria, fungi, yeast and animal organs. It is also found in fruits, such as apples, almonds and apricots. β-Galactosidase is a tetramer and is made up of four polypeptide chains consisting of amino acids that assemble to form five structural domains. The domains are jelly roll barrel, a central domain that serves as an active site and the remaining domains are composed of β-sandwich and fibronectin.
Application
β(1→4)-Galactosidase, positionally specific from Streptococcus pneumonia has been used:
- as a position-specific enzyme to study its effects in the terminal galactosylation with protective efficacy of glycosphingolipid (GSPL) in mice.
- for the digestion of radioactive oligosaccharides.
- as a position-specific enzymeto study its effects on the virulence profile of avirulent Leishmania donovani clone (A-LD).
Biochem/physiol Actions
β-Galactosidase plays a role in hydrolyzing the D-galactosyl moieties in oligosaccharides, polymers and secondary metabolites. It is widely applicable in the dairy industry to remove lactose from milk and dairy products for the benefit of lactose-intolerant individuals. β-Galactosidase is also applicable in the food industry to improve the sweetness, flavor and solubility.
Unit Definition
One unit will hydrolyze 1 μmole of p-nitrophenyl β-D-galactopyranoside per min at pH 5.0 at 37 °C.
Physical form
Solution in 20 mM Tris-HCl, pH 7.5, 25 mM NaCl
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Information
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Virulence attenuation of a UDP-galactose/N-acetylglucosamine beta1, 4 galactosyltransferase expressing Leishmania donovani promastigote
Bhaumik, SK , et al.
Glycoconjugate Journal, 25(5), 459-472 (2008)
Shaima Saqib et al.
3 Biotech, 7(1), 79-79 (2017-05-14)
The enzyme β-galactosidases have been isolated from various sources such as bacteria, fungi, yeast, vegetables, and recombinant sources. This enzyme holds importance due to its wide applications in food industries to manufacture lactose-hydrolyzed products for lactose-intolerant people and the formation
Sources of beta-galactosidase and its applications in food industry
Saqib S, et al.
3 Biotech, 7(1), 79-79 (2017)
TLR4 and NKT cell synergy in immunotherapy against visceral leishmaniasis
Karmakar S, et al.
PLoS Pathogens, 8(4), 79-79 (2012)
S K Bhaumik et al.
Glycoconjugate journal, 25(5), 459-472 (2008-01-17)
Protozoan parasites of the genus Leishmania are the causative agent of leishmaniasis, a disease whose manifestations in humans range from mild cutaneous lesions to fatal visceral infections. Human visceral leishmaniasis is caused by Leishmania donovani. Long-term culture in vitro leads
Articles
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