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Merck
CN

G4259

Sigma-Aldrich

β-葡萄糖醛酸酶 来源于散大蜗牛 (花园蜗牛)

Type HA-4

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EC 号:
MDL编号:
UNSPSC代码:
12352204
NACRES:
NA.54

类型

Type HA-4

质量水平

形式

partially purified powder

比活

≥300,000 units/g solid solid

secondary activity

≤7,500 units/g solid sulfatase

溶解性

H2O: soluble 1.90-2.10 mg/mL, clear to slightly hazy

应用

clinical testing

储存温度

−20°C

相关类别

应用

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.

生化/生理作用

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.

单位定义

One Sigma or modified Fishman unit will liberate 1.0 μg of phenolphthalein from phenolphthalein glucuronide per hr at 37°C at the pH 5.0 (30 min assay).
One unit of sulfatase will hydrolyze 1.0 μmole p-nitrocatechol sulfate per hr at pH 5.0 at 37 °C.

其他说明

在尿液代谢物分析中用于 葡萄糖苷酸缀合物的水解

象形图

Health hazard

警示用语:

Danger

危险声明

预防措施声明

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

分析证书(COA)

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Vectors with the gus reporter gene for identifying and quantitating promoter regions in <I>Saccharomyces cerevisiae</I>
Marathe &amp; J.E. McEwen
Gene, 154, 105-107 (1988)
J D McCarter et al.
Current opinion in structural biology, 4(6), 885-892 (1994-12-01)
The determination of a large number of three-dimensional structures of glycosidases, both free and in complex with ligands, has provided valuable new insights into glycosidase catalysis, especially when coupled with results from studies of specifically labelled glycosidases and kinetic analyses
S Jain et al.
Nature structural biology, 3(4), 375-381 (1996-04-01)
The X-ray structure of the homotetrameric lysosomal acid hydrolase, human beta-glucuronidase (332,000 Mr), has been determined at 2.6 A resolution. The tetramer has approximate dihedral symmetry and each promoter consists of three structural domains with topologies similar to a jelly
Catalytic mechanisms of enymatic glycosyl transfer
M.L. Sinnott
Chemical Reviews, 90, 1171-1202 (1990)
Jie Xing et al.
Journal of pharmaceutical and biomedical analysis, 39(3-4), 593-600 (2005-05-17)
The stability of baicalin in buffered aqueous solutions at different pHs and in biological fluids, including plasma, urine and tissue homogenates, were investigated in vitro. Structures of the degradation products of baicalin were elucidated by liquid chromatography-electrospray ion trap mass

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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