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A2415 Sigma

β-N-Acetylglucosaminidase from bovine kidney

ammonium sulfate suspension, 10-50 units/mg protein

Synonym: β-N-Acetyl-D-hexosaminide N-acetylhexosaminohydrolase, β-N-Acetylhexosaminidase

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Description

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.

Packaging

10 units in glass bottle

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 the pH 4.25 at 25 °C.

Physical form

Suspension in 3.2 M (NH4)2SO4, pH approx. 6.0

Application

Bovine kidney 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 .

Price and Availability


Amplified Detection
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
2
Protocols & Articles

Articles

Ammonium Sulfate Suspensions - Technical Note

Note that for an ammonium sulfate suspension, most of the enzyme will be in solid form. It is likely that only negligible amounts of enzyme will be in the ammonium sulfate solution.
Keywords: Enzyme activity

Related Content

Enzymes & Proteins

Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
Keywords: Cell signaling, Diagnostic, Drug discovery, Molecular biology

Peer-Reviewed Papers
15

References

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A0500 Acetamide, ~99% (GC)

substrate

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M2133 4-Methylumbelliferyl N-acetyl-β-D-glucosaminide, β-N-acetylhexosaminidase substrate
N9376 4-Nitrophenyl N-acetyl-β-D-glucosaminide, ≥99% (TLC)
N4006 Naphthol AS-BI N-acetyl-β-D-glucosaminide, β-hexosaminidase substrate

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