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
Recommended Products
biological source
Canavalia ensiformis
Quality Level
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
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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. 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.
This enzyme, sometimes called β-N-acetylhexosaminidase, is reported to liberate terminal β-linked N-acetylglucosamine and N-acetylgalactosamine from a variety of substrates.
Unit Definition
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
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.
inhibitor
Product No.
Description
Pricing
Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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Articles
Instructions for working with enzymes supplied as ammonium sulfate suspensions
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