产品名称

β-Galactosidase from Escherichia coli

别 称

β-D-Galactoside galactohydrolase, Lactase

CAS  NO.

9031-11-2

MDL  number

MFCD00130623

分子量

mol wt ~116 kDa

适用范围

生物试剂, for use as a marker in SDS-PAGE

l  理化信息

外 观

白色至灰白色粉末

l  生物学信息

生物活性/药理作用

β-galactosidase cleaves lactose into its monosaccharide components, glucose and galactose. It also catalyses the transglycosylation of glucose into allolactose, the inducer of β-galactosidase, in a feedback loop.

应 用

β-Galactosidase from Escherichia coli has been used as an internal standard in sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). It has been used in the protein ladder mix for optimization of microfluidic western blotting assay.

有效单位定义

One unit will hydrolyze 1.0μmole of o-nitrophenyl β-D-galactoside to o-nitrophenol and D-galactose per min at pH7.3 at 37°C.

l  存储

存储温度

2-8°C

l  注意事项及免责声明

本产品仅用于实验研究，不得作为药物使用，不得用于家用或其它用途。

l  参考文献

1.    http://www.drugbank.ca

2.    https://ncit.nci.nih.gov

3.    https://www.ncbi.nlm.nih.gov