Accéder au contenu
Merck
Toutes les photos(1)

Documents

G0413

Sigma-Aldrich

β(1→4)-Galactosidase, positionally specific from Streptococcus pneumoniae

recombinant, expressed in E. coli, buffered aqueous solution

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme
Toutes les photos(1)

About This Item

Numéro CAS:
9031-11-2
Numéro de classification (Commission des enzymes):
3.2.1.23 (BRENDA, IUBMB)
Numéro MDL:
MFCD01092684
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.32

Produit recombinant

expressed in E. coli

Niveau de qualité

100

Forme

buffered aqueous solution

Activité spécifique

≥6 units/mg protein

Conditionnement

vial of 0.06 unit

Numéro d'accès UniProt

P16278

Conditions d'expédition

wet ice

Température de stockage

2-8°C

Informations sur le gène

human ... GLB1(2720)

Description générale

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).

Actions biochimiques/physiologiques

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.

Définition de l'unité

One unit will hydrolyze 1 μmole of p-nitrophenyl β-D-galactopyranoside per min at pH 5.0 at 37 °C.

Forme physique

Solution in 20 mM Tris-HCl, pH 7.5, 25 mM NaCl

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

Déjà en possession de ce produit ?

Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

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
Afficher tous les articles scientifiques apparentés

Articles

O-Linked Glycan Strategies

Learn about O-linked glycan strategies, O-glycosidase actions, how to remove sialic acid residues, β-Elimination, and O-glycan modifications.

O-Linked Glycan Strategies

Learn about O-linked glycan strategies, O-glycosidase actions, how to remove sialic acid residues, β-Elimination, and O-glycan modifications.

O-Linked Glycan Strategies

Learn about O-linked glycan strategies, O-glycosidase actions, how to remove sialic acid residues, β-Elimination, and O-glycan modifications.

O-Linked Glycan Strategies

Learn about O-linked glycan strategies, O-glycosidase actions, how to remove sialic acid residues, β-Elimination, and O-glycan modifications.

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

Contacter notre Service technique