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G8132

Sigma-Aldrich

β-Glucuronidase from limpets (Patella vulgata)

Type L-II, lyophilized powder, 1,000,000-3,000,000 units/g solid

Synonym(s):

β-D-Glucuronide glucuronosohydrolase

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About This Item

CAS Number:
9001-45-0
Enzyme Commission number:
3.2.1.31 (BRENDA, IUBMB)
EC Number:
232-606-8
MDL number:
MFCD00130629
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

limpet (Patella vulgata)

type

Type L-II

form

lyophilized powder

specific activity

1,000,000-3,000,000 units/g solid

shipped in

wet ice

storage temp.

−20°C

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Application

β-Glucuronidase Type L-II has been shown to be a superior enzyme for the hydrolysis of drug-glucuronides from urine.
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
The enzyme from patella vulgata is reported to be more effective in hydrolyzing opioid-glucuronides than the Helix pomatia, bovine liver and E. coli enzymes

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. Morphine 3-β-D glucuronide was converted to morphine using ß-glucuronidase obtained from Patella vulgate.

Quality

Contains sulfatase activity which is inhibited by 0.1 M phosphate.

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 3.8 (30 min assay).

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H317,H334

Hazard Classifications

Resp. Sens. 1 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Vectors with the gus reporter gene for identifying and quantitating promoter regions in <I>Saccharomyces cerevisiae</I>
S.V. Marathe &amp; J.E. McEwen
Gene, 154, 105-107 (1994)
Robert West et al.
Pain physician, 13(1), 71-78 (2010-02-02)
Physicians determine patient compliance with their medications by use of urine drug testing. It is known that measurement of benzodiazepines is limited by immunoassay specificity and cutoff limits and therefore does not offer physicians an accurate picture of their patients'
Janet C Liu et al.
Journal of analytical toxicology, 38(4), 212-217 (2014-03-25)
Naltrexone is effective in treating opioid dependence by blocking µ, κ and δ opiate receptors. Naltrexone is mainly metabolized to an active metabolite 6β-naltrexol by dihydrodiol dehydrogenase enzymes. Concomitant opioids will not be effective while patients are taking this antagonist.
T Soriano et al.
Journal of analytical toxicology, 25(2), 137-143 (2001-04-13)
A method for the simultaneous qualitative and quantitative determination of drugs of abuse (opiates, cocaine, or amphetamines) and prescribed drugs (tricyclic antidepressants, phenotiazines, benzodiazepines, etc.) in biological fluids--blood, urine, bile, and gastric contents--was developed. This procedure involves solid-phase extraction with
J Combie et al.
Clinical chemistry, 28(1), 83-86 (1982-01-01)
beta-Glucuronidase from Patella vulgata, Helix aspersa, Helix pomatia, and bovine liver were evaluated for usefulness in routine hydrolysis of drug-glucuronic acid conjugates from equine urine samples. Factors affecting the reaction rate (enzyme concentration, ligand concentration, temperature, and pH) were optimized.
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Articles

Analysis of Drugs of Abuse in Urine After Cleanup with HLB Solid Phase Extraction 96-well Plates

This article validates the ability to perform cleanup of urine samples using HLB solid-phase extraction (SPE) for the analysis of opioids via tandem mass spectrometry (LC-MS/MS) after cleanup with the Supel™ Swift HLB 96-well plate.

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.

Protocols

Using UHPLC/MS (TOF) for Detection of Drugs and Metabolites in Urine Following Optimized Enzymatic Hydrolysis Conditions

To optimize hydrolysis using β-glucuronidase, factors such as incubation time, temperature, hydrolysis pH, enzyme source, and enzyme concentration must be evaluated for each glucuronide metabolite to be analyzed.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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