Send to

Choose Destination
See comment in PubMed Commons below
Biotechniques. 1996 Sep;21(3):520-4.

Dual luminescence-based reporter gene assay for luciferase and beta-galactosidase.

Author information

  • 1Tropix, Inc., Bedford, MA, USA.


A unique combined luminescence assay for firefly (Photinus pyralis) luciferase and beta-galactosidase (beta-gal) reporter gene products is described. Luciferase and beta-gal activities are determined with the same aliquot of cell lysate prepared from cells contransfected with both reporter genes, thereby reducing manual labor and increasing experimental accuracy. With the Dual-Light assay system, luciferase activity is measured first with an enhanced luciferase assay, followed by quantitation of beta-gal with Galacton-Plus chemiluminescent substrate and Sapphire-II enhancer. Highly sensitive detection of luciferase (2 fg) and beta-gal (8 fg) is achieved with a dynamic range over seven orders of magnitude of enzyme concentration. Comparative analysis of both independent and combined (Dual-Light) detection methods for cells contransfected with luciferase and beta-gal reporter genes is also described.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Loading ...
    Write to the Help Desk