一般描述
来自 玛瑙螺 的 H-2 型β-葡萄糖醛酸酶是一种源自罗马蜗牛的酶粗溶液。许多来源于软体动物的 β-葡糖醛酸酶也含有硫酸酯酶活性。
应用
β-葡萄糖醛酸酶用于水解结合的葡糖苷酸和硫酸盐代谢物。
玛瑙螺 中的β-葡萄糖醛酸苷酶已被用于：
- 在用于液相色谱-电喷雾离子化-串联质谱 (LC-ESI-MS/MS) 分析的尿样的酶处理
- 高效液相色谱 (HPLC) 分析的猪或大鼠组织中的槲皮素提取程序中
- 气相色谱-质谱分析 (GC-MS) 的尿液和血浆样品制备中的酶解作用步骤
质量
来自软体动物的多种β-葡糖醛酸糖苷酶也含有硫酸酯酶活性。
联系
凝胶渗透色谱法进一步纯化 G0876。
单位定义
在pH 5.0、温度37°C条件下，一单元sigma或改良的Fishman单元1小时会从酚酞葡糖苷酸释放 1.0 μg酚酞（30分钟实验）。
硫酸酯酶单元定义：一单位的硫酸酯酶每小时，pH5.0，37℃能够水解1.0 μmole p-硝基儿茶酚硫酸盐。
警示用语：
Danger
危险声明
危险分类
Resp. Sens. 1 - Skin Sens. 1
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
法规信息
动植物源性产品
GC-MS methods for metabolic profiling of microbial fermentation products of dietary polyphenols in human and in vitro intervention studies
Grun CH, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 871(2), 212-219 (2008)
Measurement of intact sulfate and glucuronide phytoestrogen conjugates in human urine using isotope dilution liquid chromatography-tandem mass spectrometry with [13C3] isoflavone internal standards
Clarke DB, et al.
Analytical Biochemistry, 309(1), 158-172 (2002)
Denis M Callewaert et al.
Methods in molecular biology (Clifton, N.J.), 610, 435-449 (2009-12-17)
Isoprostanes are a group of prostaglandin-like compounds that are derived in vivo primarily by free radical-mediated peroxidation of arachidonic acid within phospholipids. The resulting isoprostane moieties are rapidly hydrolyzed, metabolized, and excreted. It is now well recognized that isoprostane levels
Tissue distribution of quercetin in rats and pigs
de Boer VCJ, et al.
The Journal of Nutrition, 135(7), 1718-1725 (2005)
Maaike M Appeldoorn et al.
The Journal of nutrition, 139(8), 1469-1473 (2009-06-06)
Intervention studies with procyanidin (PC)-rich extracts and products such as cocoa and wine suggest protective effects of PC against cardiovascular diseases. However, there is no consensus on the absorption and metabolism of PC dimers. Interestingly, nothing is known about the
商品
β-glucuronidase (GUS) enzymes are utilized to hydrolyze glucuronide (gluc) drug metabolites to the parent drug, facilitating analysis by LC-MS/MS.
实验方案
酶促检测罗马蜗牛和牛肝脏来源ß-葡萄糖醛酸酶(EC 3.2.1.31)适用于可检测罗马蜗牛和牛肝脏来源ß-葡萄糖醛酸酶的所有产品。应由经过培训的分析服务实验室人员负责按照书面规定执行此程序。
Enzymatic assay protocol for β-Glucuronidase from Helix Pomatia and Bovine Liver aids laboratory personnel in following procedures.
为了使用β-葡糖醛酸酶优化水解，必须对每种待分析的葡糖苷酸代谢物进行某些因素的评估，例如孵育时间、温度、水解pH、酶源和酶浓度。
Optimize β-glucuronidase hydrolysis for glucuronide metabolite analysis considering factors like time, temperature, pH, and enzyme concentration.
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