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β-Galactosidase, ≥50 U/mg
β-Galactosidase is useful for the structural investigation of carbohydrate, the determination of lactose (foodstuff analysis) and as an enzyme label for enzyme immunoassay.
Enzyme label for enzyme immunoassay
|Alternate Names||Lactase; β-D-Galactoside galactohydrolase; β-Galactoside galactohydrolase; β-D-Galactopyranosidase; β-Lactosidase|
|Application Notes||β-Galactosidase is useful for the structural investigation of carbohydrate, the determination of lactose (foodstuff analysis) and as an enzyme label for enzyme immunoassay.|
|Base Catalog Number||104939|
|Biochemical Physiological Actions||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.|
|Isoelectric Point||4.61 (Lit.)|
|Personal Protective Equipment||Eyeshields, Gloves, Respirator filter|
|Specific Activity||≥50 u/mg|
|Specificity||Substrate Specificity: The enzyme specifically hydrolyzes β-D-galactosyl linkage|
|Unit Definition||One unit catalyzes the hydrolysis of 1 μmole of o-nitrophenyl-β-D-galactopyranoside per minute at 25 °C, pH 7.5.|