M9400
β-Mannosidase from Helix pomatia
5-30 units/mL, ammonium sulfate suspension, crude extract
Synonym(s):
β-D-Mannoside mannohydrolase
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About This Item
CAS Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.32
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form
ammonium sulfate suspension
quality
crude extract
mol wt
94 kDa
concentration
5-30 units/mL
foreign activity
β-N-acetylglucosaminidase and α-mannosidase <1.0%
storage temp.
2-8°C
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General description
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
Biochem/physiol Actions
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.
Unit Definition
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.
Physical form
Suspension in 3.0 M (NH4)2SO4 containing 10 mM sodium acetate, pH approx. 4.0
inhibitor
Storage Class Code
10 - Combustible liquids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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Yuya Kumagai et al.
Biochimie, 94(12), 2783-2790 (2012-09-27)
Mannanase is an important enzyme involved in the degradation of mannan, production of bioactive oligosaccharides, and biobleaching of kraft pulp. Mannanase must be thermostable for use in industrial applications. In a previous study, we found that the thermal stability of
Jia Zheng et al.
Bioresource technology, 118, 257-264 (2012-06-19)
An industrial medium, Corn Steep Liquor Powder Dextrose (CSD medium) was developed for constitutive expression of recombinant β-mananase by Pichia pastoris. The β-mananase activity (513 U/mL) with CSD medium was 1.64- and 2.5-fold higher than with YPD and BSM in
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Lipids produced by oleaginous microorganisms are a potential feedstock for biodiesel production and chemical synthesis. Yet, the costs of microbial lipids remain high, partially because the lipid recovery process is tedious and costly. In the present study, enzyme-assisted extraction of
Eleni Papakonstantinou et al.
American journal of respiratory cell and molecular biology, 47(6), 759-767 (2012-08-07)
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A P Félix et al.
Journal of animal science, 90(9), 3060-3067 (2012-05-16)
This experiment aimed at evaluating the effects of including the enzyme, β-mannanase, in dog (Canis lupus familiaris) diets based on either poultry (Gallus gallus domesticus) by-product meal (PBM) or soybean [Glycine max (L.) Merr.] Meal (SBM). The second objective was
Articles
Instructions for working with enzymes supplied as ammonium sulfate suspensions
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