BA254 Beta-galactosidase tag

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5 mg / €390.00
Please visit the country specific website of OriGene Technologies or contact your local Distributor to buy this product.

Quick Overview

Beta-galactosidase tag


Product Description for Beta-galactosidase tag

Beta-galactosidase tag.

Properties for Beta-galactosidase tag

Product Category Proteins & Growth Factors
Target Category
Quantity 5 mg
Synonyms Beta-Gal Fusion Protein, Beta-Gal tag, JW0335, Lactase, b0344, lacZ tag
Species (Protein) E. coli
Shipping to Worldwide
PDF datasheet View Datasheet
Manufacturer OriGene Technologies GmbH
Material safety datasheet MSDS for Proteins (de)

Datasheet Extract

Swiss Prot Num:
Purity 600 U/mg
Application Functional Assays.
Background 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.
General Readings
  1. CAS number 9031-11-2.
  2. EC
Storage Prior to reconstitution store at 2-8°C.
Following reconstitution store the protein undiluted at 2-8°C for one month
or (in aliquots) at -20°C for longer.
Avoid repeated freezing and thawing.
Shelf life: one year from despatch.
Source E.coli
Purified Beta-Galactosidase from E.coli.
Molecular weight:
540 kDa
Specific activity:
> 600 U/mg protein. 
One unit hydrolyses 1 μmole of p-nitrophenol-b-D-galactoside to p-nitrophenol per minute at 37ºC.
Buffer System:
74% Sucrose
Lyophilized purified protein from Escherichia coli
Restore with sterile distilled water or a dilute buffer of choice. 
Care should be taken during reconstitution as the protein may appear as a film at the bottom of the vial. We recommend that the vial is gently mixed after reconstitution.
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