< 1 EU per 1 ug of protein (determined by LAL method)
Activity:
Specific activity is > 4000 pmol/min/ug, and is defined as the amount of enzyme that hydrolyze 1.0 pmole of 4-Methylumbelliferone to 4-Methylum-belliferyl-beta-D-glucosiduronic acid per minute at 37°C and pH 6.0.
Quality Control Testing:
3 ug by SDS-PAGE under reducing condition and visualized by Coomassie blue stain.
Storage Buffer:
In Phosphate-Buffer Saline pH 7.4 (10% glycerol)
Storage Instruction:
Store at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20°C to -80°C. Aliquot to avoid repeated freezing and thawing.
The GUSB gene encodes beta-glucuronidase (EC 3.2.1.31), a lysosomal hydrolase involved in the stepwise degradation of glucuronic acid-containing glycosaminoglycans (Shipley et al., 1993 [PubMed 7680524]). It is a tetrameric glycoprotein composed of identical subunits (Oshima et al., 1987 [PubMed 3468507]). The GUSB gene is mutated in mucopolysaccharidosis type VII (MPS7; MIM 253220).[supplied by OMIM