Skip to main content
Log in

An activity-independent selection system of thermostable protein variants

  • Brief Communication
  • Published:

From Nature Methods

View current issue Submit your manuscript

Abstract

We describe an activity-independent method for the selection of thermostable mutants of any protein. It is based on a fusion construct comprising the protein of interest and a thermostable antibiotic resistance reporter, in such a way that thermostable mutants provide increased resistance in a thermophile. We isolated thermostable mutants of three human interferons and of two enzymes to demonstrate the applicability of the system.

This is a preview of subscription content, log in via an institution to check access.

Access this article

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

Instant access to the full article PDF.

Figure 1: Kattv-fused IFNγ variants induce T. thermophilus growth relative to their thermostability level.
Figure 2: Thermoresistance kinetics of two thermostable mutants of IFNα, IFNβ and IFNγ.

Similar content being viewed by others

References

  1. Eijsink, V.G., Gaseidnes, S., Borchert, T.V. & van den Burg, B. Biomol. Eng. 22, 21–30 (2005).

    Article  CAS  Google Scholar 

  2. Shusta, E.V., Kieke, M.C., Parke, E., Kranz, D.M. & Wittrup, K.D. J. Mol. Biol. 292, 949–956 (1999).

    Article  CAS  Google Scholar 

  3. Shusta, E.V., Holler, P.D., Kieke, M.C., Kranz, D.M. & Wittrup, K.D. Nat. Biotechnol. 18, 754–759 (2000).

    Article  CAS  Google Scholar 

  4. Bommarius, A.S., Broering, J.M., Chaparro-Riggers, J.F. & Polizzi, K.M. Curr. Opin. Biotechnol. 17, 606–610 (2006).

    Article  CAS  Google Scholar 

  5. Matsumura, M. & Aiba, S. J. Biol. Chem. 260, 15298–15303 (1985).

    CAS  PubMed  Google Scholar 

  6. Waldo, G.S., Standish, B.M., Berendzen, J. & Terwilliger, T.C. Nat. Biotechnol. 17, 691–695 (1999).

    Article  CAS  Google Scholar 

  7. Maxwell, K.L., Mittermaier, A.K., Forman-Kay, J.D. & Davidson, A.R. Protein Sci. 8, 1908–1911 (1999).

    Article  CAS  Google Scholar 

  8. Slodowski, O., Bohm, J., Schone, B. & Otto, B. Eur. J. Biochem. 202, 1133–1140 (1991).

    Article  CAS  Google Scholar 

  9. Waschutza, G. et al. Protein Eng. 9, 905–912 (1996).

    Article  CAS  Google Scholar 

  10. Saboulard, D. et al. Biotechniques 39, 363–368 (2005).

    Article  CAS  Google Scholar 

  11. Delcourt, M. & Blesa, S. Method for massive mutagenesis. European patent 1311670 B1 and US patent 7202086 B2 (2001).

  12. Cabantous, S. et al. J. Struct. Funct. Genomics 6, 113–119 (2005).

    Article  CAS  Google Scholar 

  13. Park, C. & Marqusee, S. Nat. Methods 2, 207–212 (2005).

    Article  CAS  Google Scholar 

  14. Beeby, M. et al. PLoS Biol. 3, e309 (2005).

    Article  Google Scholar 

  15. Sieber, V., Pluckthun, A. & Schmid, F.X. Nat. Biotechnol. 16, 955–960 (1998).

    Article  CAS  Google Scholar 

Download references

Acknowledgements

We thank S. Blésa, J. Sylvestre, B. Winter and J.-C. Barale for useful discussions and comments on the manuscript and M.-A. Carriço, E. Matthieu and S. Jovelin for their technical help. We acknowledge financial support of projects BIO2004-02671 from Ministerio de Educación y Ciencia (MEC), S0505/PPQ/0344 from Comunidad Autónoma de Madrid to José Berenguer and an institutional grant from Fundación Ramón Areces to the Centro de Biología Molecular Severo Ochoa. E.B.-G. was supported by a fellowship from the MEC.

Author information

Authors and Affiliations

Authors

Contributions

H.C. contributed to design of libraries and construction and selection procedures. E.B.-G. and F.C. contributed to pNCK construction and initial settings and validation of the selection procedures in T. thermophilus. T.M. and L.G.'M. contributed to interferon and enzyme assays. M.D. and J.B. contributed to THR design and determining experimental settings.

Corresponding authors

Correspondence to José Berenguer or Marc Delcourt.

Ethics declarations

Competing interests

H.C., T.M. L.G.'M. and M.D. are employed by a private company, Biomethodes SA.

Supplementary information

Supplementary Text and Figures

Supplementary Figures 1–3, Supplementary Tables 1–2, Supplementary Methods (PDF 254 kb)

Rights and permissions

Reprints and permissions

About this article

Cite this article

Chautard, H., Blas-Galindo, E., Menguy, T. et al. An activity-independent selection system of thermostable protein variants. Nat Methods 4, 919–921 (2007). https://doi.org/10.1038/nmeth1090

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/nmeth1090

  • Springer Nature America, Inc.

This article is cited by

Navigation