M9400

β-Mannosidase from Helix pomatia

5-30 units/mL, ammonium sulfate suspension, crude extract

• Synonyme(s) : β-D-Mannoside mannohydrolase
• CAS Number: 9025-43-8
• Numéro CE : 3.2.1.25 (BRENDA, IUBMB)
• Numéro MDL: MFCD00130638
• Code UNSPSC : 12352204
• Nomenclature NACRES : NA.32

Propriétés

• Forme: ammonium sulfate suspension
• Niveau de qualité: 200
• Qualité: crude extract
• Poids mol.: 94 kDa
• Concentration: 5-30 units/mL
• Activité étrangère: β-N-acetylglucosaminidase and α-mannosidase <1.0%
• Température de stockage: 2-8°C

Description

Description générale

β-Mannosidase is a lysosomal enzyme that belongs to the glycosyl hydrolase family 2.

Application

β-Mannosidase from Helix pomatia has been used:

• in the digestion of glycans for enzymatic analysis
• in the treatment of labeled monogalactosyl Manno-oligosaccharides
• in non-mammalian glycosidase inhibition assays

Actions biochimiques/physiologiques

β-Mannosidase participates in cleaving the β(1–4)-linked mannose located at the nonreducing end of N-glycosylated proteins. It is involved in the polysaccharide degradation pathway. In humans, mutations in the gene are associated with β-mannosidosis, a lysosomal storage disease. Low levels of β-Mannosidase due to mutations also lead to nystagmus, an eye disorder associated with involuntary eye movements.

Définition de l'unité

One unit will hydrolyze 1 μmole of p-nitrophenyl-β-D-mannopyranoside to p-nitrophenol and D-mannopyranoside per min at pH 4.0 at 25°C.

Forme physique

Suspension in 3.0 M (NH₄)₂SO₄ containing 10 mM sodium acetate, pH approx. 4.0

Informations sur la sécurité

• 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
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)