Post-transcriptional regulation in higher eukaryotes: The role of the reporter gene in controlling expression (original) (raw)

Summary

We have investigated whether reporter genes influence cytoplasmic regulation of gene expression in tobacco and Chinese hamster ovary (CHO) cells. Two genes, uidA encoding β-glucuronidase (GUS) from Eseherichia coli and Luc, encoding firefly luciferase (LUC), were used to analyze the ability of a cap, polyadenylated tail, and the 5′- and 3′-untranslated regions (UTR) from tobacco mosaic virus (TMV) to regulate expression. The regulation associated with the 5′ cap structure and the TMV 5′-UTR, both of which enhance translational efficiency, was reporter gene-independent. The poly(A) tail and the TMV 3′-UTR, which is functionally equivalent to a poly(A) tail, increase translational efficiency as well as mRNA stability. The regulation associated with these 3′ ends was highly reporter gene-dependent; their effect on GUS expression was almost an order of magnitude greater than that on LUC expression. In tobacco, the tenfold reporter gene effect on poly(A) tail or TMV 3′-UTR function could not be explained by a differential impact on mRNA stability; GUS and LUC mRNA half-life increased only twofold when either the poly(A) tail or TMV 3′-UTR was present. In CHO cells, however, GUS mRNA was stabilized to a greater extent by a poly(A) tail or the TMV 3′-UTR than was LUC mRNA.

Access this article

Log in via an institution

Subscribe and save

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

Download references

Author information

Author notes

  1. Daniel R. Gallie
    Present address: Department of Biochemistry, University of California, 92521, Riverside, CA, USA
  2. John N. Feder
    Present address: Howard Hughes Medical Institute and Department of Physiology and Biochemistry, University of California, 94143, San Francisco, CA, USA

Authors and Affiliations

  1. Department of Biological Sciences, Stanford University, 94305-5020, Stanford, CA, USA
    Daniel R. Gallie, John N. Feder, Robert T. Schimke & Virginia Walbot

Authors

  1. Daniel R. Gallie
    You can also search for this author inPubMed Google Scholar
  2. John N. Feder
    You can also search for this author inPubMed Google Scholar
  3. Robert T. Schimke
    You can also search for this author inPubMed Google Scholar
  4. Virginia Walbot
    You can also search for this author inPubMed Google Scholar

Additional information

Communicated by H. Saedler

Rights and permissions

About this article

Cite this article

Gallie, D.R., Feder, J.N., Schimke, R.T. et al. Post-transcriptional regulation in higher eukaryotes: The role of the reporter gene in controlling expression.Molec. Gen. Genet. 228, 258–264 (1991). https://doi.org/10.1007/BF00282474

Download citation

Key words