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pSV-β-Galactosidase Control Vector

0325VA-W

Monitors Transfection Efficiencies of Mammalian Cells

  • Co-transfect into cells as the control reporter in a dual-reporter assay
  • Assay in cell extracts using spectrophotometric, fluorescent or chemiluminescent methods
  • Can be used for in situ histochemical analysis using X-gal substrate

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Catalog number selected: E1081

$ 123.00 Your price: Log In

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pSV-β-Galactosidase Control Vector
20μg
$ 123.00
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The pSV-β-Galactosidase Control Vector is a positive control vector that can be transfected individually or co-transfected with your DNA of interest.. The SV40 early promoter and enhancer drive transcription of the lacZ gene, which encodes the β-galactosidase enzyme. β-galactosidase is an excellent reporter enzyme that can be assayed quickly and directly in cell extracts using spectrophotometric, fluorescent or chemiluminescent assays. This reporter enzyme is also widely used for in situ histochemical analysis using the substrate X-Gal.

The pSV-β-Galactosidase Control Vector can be co-transfected with your DNA of interest. For example, co-transfection with firefly luciferase gene vectors (pGL3 Vectors) provide cell extracts that can be assayed for both luciferase and β-galactosidase activities. In this manner, the pSV-β-Galactosidase Vector acts as an internal control for transient expression assays. A negative control extract, prepared from mock-transfected cells, should also be assayed for the presence of endogenous β-galactosidase activity in cultured cells. In addition, co-transfection with chloramphenicol acetyltransferase reporter gene vectors (pCAT™3 Vectors) permits assaying for both CAT and β-galactosidase activities.

The pSV-β-Galactosidase Vector is a modification of pRSV-β-Gal with SV40 and pUC18 sequences substituted for RSV and pBR322 sequences. The pSV-β-Galactosidase Vector will express β-galactosidase in E. coli due to the presence of the E. coli gpt promoter located upstream of the lacZ gene. Colonies of E. coli containing the pSV-β-Galactosidase Vector will appear blue when plated on media containing X-Gal.

References

  1. Hall, C.V. et al. (1983) J. Mol. Appl. Genet. 2, 101–9.
  2. Rosenthal, N. (1987) Meth. Enzymol. 152, 704–20.
  3. Silhavy, T. et al. (1984) In: Experiments with Gene Fusions, Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, 266.
  4. Schenborn, E. and Groskreutz, D. (1999) Mol. Biotechnol. 13, 29–44.
  5. Lim, K. and Chae, C.B. (1989) BioTechniques 7, 576–9.

Sequence Information

pSV-β-Galactosidase Vector GenBank® Accession Number X65335 and vector sequence text file.

Protocols

Specifications

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Item Part # Size

pSV-β-Galactosidase Control Vector

E108A 1 × 20μg

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Use Restrictions

For Research Use Only. Not for Use in Diagnostic Procedures.

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