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G7770 Sigma-Aldrich

β-Glucuronidase from Helix pomatia

Type HP-2S, aqueous solution, ≥90,000 units/mL

Synonym: β-D-Glucuronide glucuronosohydrolase

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Description

General description

β-Glucuronidase Type H-2 from Helix pomatia is a crude solution of enzymes derived from the Roman snail. Many β-glucuronidases derived from mollusks also contain sulfatase activity.

Application

β-Glucuronidase from Helix pomatia has been used:
• in the treatment of heparinized plasma sample for the hydrolysis of glucuronic acid-conjugated metabolites
• in the pre-treatment of plasma sample for the determination of 1′-hydroxymidazolam (1′-OHMDZ)
• for the treatment of bile samples from rainbow trouts for the hydrolysis of glucuronate and sulfate metabolites
• in treating the cells from the sporulation media for the complete digestion of the cell walls of asci

β-glucuronidase was used in enzymic hydrolysis of tissue homogenates for liquid chromatography-electrospray ion trap mass spectrometry (LC/MSn) analysis, to study the structures of degradation products of baicalin. It is used as a reporter gene in GUS assays to monitor gene expression.

New Technical Article Comparing Performance of Different Enzymes
Learn more
about recent application data generated by Sigma R&D to optimize hydrolysis for different drug classes using enzymes from different sources and the use of a chromatographicaly purified enzyme to reduce the effect of esterase activity resulting in conversion of 6-MAM to Morphine

Biochem/physiol Actions

β-glucuronidase (β-GIc) is an exoglycosidase that catalyzes the breakdown of complex carbohydrates. In humans it converts conjugated bilirubin into the unconjugated form, making bilirubin suitable for reabsorption.

Used for the hydrolysis of glucuronide conjugates in urinary metabolite analysis

Quality

Many β-glucuronidases derived from mollusks also contain sulfatase activity.

Unit Definition

One Sigma or modified Fishman unit will liberate 1.0 μg of phenolphthalein from phenolphthalein glucuronide per hr at 37 °C at pH 5.0 (30 min assay).

Sulfatase Unit Definition: One unit of sulfatase will hydrolyze 1.0 μmole p-nitrocatechol sulfate per hr at pH 5.0 at 37 °C.

Physical form

Aqueous solution in ~1.0 M ammonium sulfate with 3 mM sodium azide as preservative.

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

Evaluation of Different Enzymes on Hydrolysis Efficiencies of Glucuronide Drug Metabolites in Urine

β-glucuronidase (GUS) enzymes are utilized to hydrolyze glucuronide (gluc) drug metabolites to the parent drug, facilitating analysis by LC-MS/MS. Here we evaluate the hydrolysis efficiency of β-gluc...
Jim Blasberg
Harkewal Singh, Kevin Ray Sigma-Aldrich, St. Louis, MO
Keywords: High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Metabolites

Protocols

Enzymatic Assay of ß-Glucuronidase (EC 3.2.1.31) from Helix Pomatia and Bovine Liver

This procedure applies to all b-Glucuronidase products that are derived from Helix Pomatia and Bovine Liver.
Keywords: Enzymology

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Peer-Reviewed Papers
15

References

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