Biological Information
Background Information:
b-Glucuronidase is involved in the degradation of heparin/heparan sulfate and dermatan/chondroitin sulfate. In vivo, deficiency of the enzyme is associated with the lysosomal storage disorder muco-polysaccharidosis type VII (MPS VII), or Sly syndrome, due to accumulation of partially degraded heparin/heparan sulfate and dermatan sulfate fragments. By uncoupling glucuronides, b-glucuronidase can deconjugate potential toxins, increasing the formation of carcinogens in the bowel and promoting the enterohepatic recirculation of toxins, hormones, and various drugs in the body. In fact, excessive b-glucuronidase may be a primary factor in the etiology of colon cancer.
Family:
Carbohydrate Metabolism
Sub Family:
Glycoside Hydrolase
Protein Name:
Beta Glucuronidase
Uniprot Number:
P08236
Gene Name:
GUSB
Gene ID:
2990
Organism:
Bovine
Construct Details:
Endogenous
Assay Information
Assay Type:
Biochemical
Assay Sub Type:
Enzymatic
Functional Mode:
Antagonist
Detection Method:
Spectrofluorimetry
Measured Response:
Absorbance
Testing Information
Procedure Summary:
Bovine liver b-glucuronidase is used. Test compound and/or vehicle is preincubated with 20 μg/ml enzyme‡ in CH3COONa buffer pH 4.5 for 15 minutes at 37⁰C. The reaction is initiated by addition of 150 μM phenolphthalein glucuronide acid for another 30 minute incubation period. Determination of the amount of phenolphthalein formed is read spectrophotometrically. Compounds are screened at 10 μM.
Substrate:
150 µM Phenolphthalein glucuronide acid
Incubation:
30 min at 37°C
Control Inhibitor:
D-Glucaric acid-1,4-lactone
Criteria For Significance:
≥ 50% of max stimulation or inhibition
Test Concentration / Dose:
Suggested concentration for initial testing is 10 uM
Test Sample Requirements:
Minimum for 1) Screen: 25 μl of 10 mM stock -OR- 1 mg (pre-weighed). 2) Dose Response: 60 μl of 10 mM stock -OR- 1 mg (pre-weighed).
Minimum Order Quantity:
2
Turnaround Time
Standard:
15 Business Days
Reference Compound Data
Clinical Relevance
Therapeutic Area:
Inflammation/Allergy
Additional Information
Brand:
LeadHunter
Testing Location:
Taiwan - Taipei