A2264
β-N-Acetylglucosaminidase from Canavalia ensiformis (Jack bean)
ammonium sulfate suspension, ≥10 units/mg protein
Synonym(s):
β-N-Acetyl-D-hexosaminide N-acetylhexosaminohydrolase, β-N-Acetylhexosaminidase
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About This Item
CAS Number:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-730-2
MDL number:
Product Name
β-N-Acetylglucosaminidase from Canavalia ensiformis (Jack bean), ammonium sulfate suspension, ≥10 units/mg protein
biological source
Canavalia ensiformis
form
ammonium sulfate suspension
specific activity
≥10 units/mg protein
foreign activity
α- and β-galactosidase, and α-L-fucosidase ≤0.1%
α-mannosidase ≤0.2%
storage temp.
2-8°C
Quality Level
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Analysis Note
At pH 4.0, p-nitrophenyl β-N-acetylgalactosaminide is hydrolyzed at approximately 50% of the rate of hydrolysis of p-nitrophenyl β-N-acetylglucosaminide at pH 5.0.
Application
β -N-acetylglucosaminidase is a lysosomal enzyme used to hydrolyze N-acetyl-β-D-glucosaminides and N-acetyl-β-Dgalactosaminides. It is used in chemoenzymatic synthesis of oligosaccharides based on their effective transglycosylation of β-GlcNAc and β-GalNAcc. It may be a useful tool to study Alzheimer′s Disease . Acetylglucosaminidase from Canavalia ensiformis has been used to study enzymic detachment of biofilms .
Biochem/physiol Actions
This enzyme, sometimes called β-N-acetylhexosaminidase, is reported to liberate terminal β-linked N-acetylglucosamine and N-acetylgalactosamine from a variety of substrates.
This enzyme, sometimes called β-N-acetylhexosaminidase, is reported to liberate terminal β-linked N-acetylglucosamine and N-acetylgalactosamine from a variety of substrates. The activity of β-N-actylglucosaminidase may be determined with the chromogenic substrate p-nitrophenyl-N-acetyl-β-D-glucosaminide. β-N-actylglucosaminidase hydrolyzes the terminal nonreducing N-acetyl-D-hexosamine residues. This enzyme contains two predominant isozymes, Hex A, a heterodimer, and Hex B, a homodimer. N-acetylglucosamine, acetamide, N-2-acetamido-2-deoyglucosylamine, N-acetylnojirimycin, and N-acetyldeoxynojirmycin are known inhibitors.
Other Notes
One unit will hydrolyze 1.0 μmole of p-nitrophenyl N-acetyl-β-D-glucosaminide to p-nitrophenol and N-acetyl-D-glucosamine per min at pH 5.0 at 25 °C.
Physical form
Suspension in 2.5 M (NH4)2SO4, pH 7.0
Storage Class
12 - Non Combustible Liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
动植物源性产品
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T Berger et al.
Journal of reproduction and fertility, 86(2), 559-565 (1989-07-01)
An assay to determine the binding of pig spermatozoa to the zona pellucida (ZP) of pig oocytes was developed using conditions compatible with in-vitro fertilization of pig eggs and with pig sperm penetration of zona-free hamster ova. These conditions were
Mohammed A Al-Fattani et al.
Journal of medical microbiology, 55(Pt 8), 999-1008 (2006-07-20)
Matrix material was extracted from biofilms of Candida albicans and Candida tropicalis and analysed chemically. Both preparations contained carbohydrate, protein, hexosamine, phosphorus and uronic acid. However, the major component in C. albicans matrix was glucose (32%), whereas in C. tropicalis
Chaeyoung Kim et al.
Neurobiology of aging, 34(1), 275-285 (2012-04-17)
Deposition of β-amyloid (Aβ) as senile plaques and disrupted glucose metabolism are two main characteristics of Alzheimer's disease (AD). It is unknown, however, how these two processes are related in AD. Here we examined the relationship between O-GlcNAcylation, which is
Douglas N Sanders et al.
Molecular genetics and metabolism, 108(1), 70-75 (2012-12-26)
GM2 gangliosidosis is a fatal lysosomal storage disease caused by a deficiency of β-hexosaminidase (EC 3.2.1.52). There are two major isoforms of the enzyme: hexosaminidase A composed of an α and a β subunit (encoded by HEXA and HEXB genes
Tyler Mark Pierson et al.
Molecular genetics and metabolism, 108(1), 65-69 (2012-11-20)
A 12 year-old female presented with a seven-year history of progressive muscle weakness, atrophy, tremor and fasciculations. Cognition was normal. Rectal biopsy revealed intracellular storage material and biochemical testing indicated low hexosaminidase activity consistent with juvenile-onset G(M2)-gangliosidosis. Genetic evaluation revealed
Articles
Instructions for working with enzymes supplied as ammonium sulfate suspensions
以硫酸铵悬浮液形式提供的酶的使用指南
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