ß-Galactosidase Assay (CPRG)

ß-Galactosidase Assay (CPRG)

Product Information

Product Overview:

ß-Galactosidase Assay (CPRG) provides an easy, rapid, and highly sensitive method for determining the ß-galactosidase activity in the lysates of cells transfected with a ß-galactosidase expression construct. The ß-Galactosidase Assay (CPRG) assay uses chlorophenol red-ß-D-galactopyranoside (CPRG), which is up to 10 times more sensitive than the classic o-nitrophenyl-ß-D-galactopyranoside (ONPG) ß-Galactosidase assays. This increased sensitivity makes it simpler to measure ß-galactosidase activity in cells that are difficult to transfect or have low ß-galactosidase activity expression.ß-galactosidase catalyzes the hydrolysis of the galactoside analog chlorophenol red-ß-D-galactopyranoside (CPRG). Cell lysates are incubated with the supplied reagents and the ß-Galactosidase converts the yellow-orange CPRG substrate into the red chromophore chlorophenol red, yielding a dark red solution. The ß-galactosidase gene functions well as a reporter gene because the protein product is extremely stable, resistant to proteolytic degradation in cellular lysates, and easily assayed. The levels of activity ß-galactosidase expression can be quickly measured by this method. ß-Galactosidase activity is measured using a spectrophotometer or a microplate reader to determine the amount of substrate converted at 570–595 nm. Although the CPRG ß-Galactosidase Assay Kit provides all the required reagents for 500 micro-assays in a 96-well plate, it is easily adapted for different assay size.


Monitor levels of transfection in cells


Colorimetric Assay~10X More Sensitive than ONPG Assays500 Microwell AssaysScalable

Catalog#: 786-651
LID#: 4584A
Quantity :
Order by Phone or Fax: 1.800.316.3081


Warehouse Storage Temp-20C
DescriptionA sensitive, colorimetric assay for beta galactosidase
Unit SizeKit
Safety StatementsFor Research Use Only
Sample AvailabilityYes
Synonymbeta galactosidase asay, beta gal, b-gal, CPRG, chlorophenol, chlorophenol red-ß-D-galactopyranoside, ONPG, CPRG, transfection, reporter

Shipping & Handling

Estimated Ship Time: 2 Business Days

Shipped In: Ambient

Hazardous Material: No


Shelf Life: 12 MONTHS

Storage Temperature: 4C

Customer Reviews

Average Customer Rating
Review & Rating Distribution