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M7257

Sigma-Aldrich

α-Mannosidase from Canavalia ensiformis (Jack bean)

ammonium sulfate suspension, ≥15 units/mg protein (biuret)

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Synonym(s):
α-D-Mannoside mannohydrolase
CAS Number:
9025-42-7
Enzyme Commission number:
3.2.1.24 (BRENDA, IUBMB)
EC Number:
232-794-1
MDL number:
MFCD00130495
NACRES:
NA.54

biological source

Canavalia ensiformis

Quality Level

200

form

ammonium sulfate suspension

specific activity

≥15 units/mg protein (biuret)

foreign activity

β-galactosidase, β-N-acetylglucosaminidase, α-galactosidase and α-L-fucosidase <0.05%

storage temp.

2-8°C

InChI

1S/Zn/q+2

InChI key

PTFCDOFLOPIGGS-UHFFFAOYSA-N

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General description

α−Mannosidase from Canavalia ensiformis is a tretamer composed of two subunits that each contain two components at 44 and 66 kDa.
α-Mannosidase is an exo-glycosidase and an inc metalloenzyme.
Lysosomal α-mannosidases are class II mannosidases that belong to glycoside hydrolase family 38 and play an important role in the degradation of asparagine-linked carbohydrates of glycoproteins.

Application

α-Mannosidase can be used to liberate mannose from a variety of synthetic and natural α-mannosides. It has also been used in a study to investigate the causes of neurodegeneration in mucolipidosis II ′knock-in′ mice.
α-Mannosidase from Canavalia ensiformis (Jack bean) has been used:
  • for the digestion of neutral glycans.
  • to remove O-glycans from recombinant β-glucosidase
  • for the inhibition of renal fibroblasts proliferation

Liberates mannose from a variety of synthetic and natural α-mannosides.

Biochem/physiol Actions

α−Mannosidase has been shown to inhibit the proliferation of B-lymphocytes.
α-Mannosidase cleaves near α1−2-, α1−3- and α1−6-linked mannose residues.
α-Mannosidase is an acid hydrolase which is located in plant vacuoles and is thought to be involved with the turnover of N-linked glycoproteins.

Unit Definition

One unit will hydrolyze 1.0 μmole of p-nitrophenyl α-D-mannoside to p-nitrophenol and D-mannose per min at pH 4.5 at 25°C.

Physical form

Suspension in 3.0 M (NH4)2SO4 and 0.1 mM zinc acetate, pH 7.5

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H334

Precautionary Statements

P261 - P284 - P501

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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A Family of Dual-Activity Glycosyltransferase-Phosphorylases Mediates Mannogen Turnover and Virulence in Leishmania Parasites
Sernee MF, et al.
Cell host & microbe, 26, 385-399 (2019)
Jack bean alpha-mannosidase: Amino acid sequencing and N-glycosylation analysis of a valuable glycomics tool.
Kumar G, et al.
Glycobiology, 24(3) (2014)
Engineering a highly active thermophilic beta-glucosidase to enhance its pH stability and saccharification performance
Xia W, et al.
Biotechnology for Biofuels, 9(1), 147-147 (2016)
W Einhoff et al.
Biological chemistry Hoppe-Seyler, 369(3), 165-169 (1988-03-01)
The alpha-mannosidase from Canavalia ensiformis was characterized with respect to molecular mass, glycoprotein nature, amino-acid composition, enzymic properties and action on animal cells. The enzyme is composed of two pairs of subunits (molecular mass 44 and 66 kDa) which form
Collectin-11 promotes the development of renal tubulointerstitial fibrosis
Wu W, et al.
Journal of the American Society of Nephrology, 29, 168-181 (2018)
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