Escherichia coli Beta-Galactosidase is an inducible tetrameric enzyme coded by the lac Z gene of the lac operon that is often used as a reporter to assess the efficiency of transfection. It is a metalloenzyme that splits lactose into glucose and galactose. It hydrolyzes terminal, non-reducing beta-D-galactose residues in beta-D-galactosides.
Purified protein from Escherichia coli - lyophilised
Reconstitute with 1.0ml sterile distilled water or aqueous buffer of choice. Care should be taken during reconstitution as the protein may appear as a film at the bottom of the vial. Bio-Rad recommend that the vial is gently mixed after reconstitution.
>600 U/mg proteinOne unit hydrolyses 1 µmole of p-nitrophenol-b-D-galactoside to p-nitrophenol per minute at 37ºC.
Approx. Protein Concentrations
Protein content is approximately 20-25% of total weight
Reagents In The Kit
Preparing The Antibody
Phosphate buffered saline
Prior to reconstitution store at +4oC. After reconstitution store at -20oC. Storage in frost-free freezers is not recommended. This product should be stored undiluted. Avoid repeated freezing and thawing as this may denature the protein. Should this product contain a precipitate we recommend microcentrifugation before use.
This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using the appropriate negative/positive controls.