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Upstream activator sequences are present in the promoters of nitrogen fixation genes

Abstract

Nitrogen fixation (nif) genes in Klebsiella pneumoniae are controlled by a transcriptional activation mechanism which requires the ntrA gene product acting concert with either the ntrC or nifA products (reviewed in ref. 1). The nif promoters lack the canonical −35, −10 promoter elements and instead their activation requires nucleotide sequences located around −24 and −12 (refs 2–4). We have now identified and characterized a further essential promoter sequence in the K. pneumoniae nifH, nifU, nifB and ORF promoters, located more than 100 base pairs (bp) from the transcription start site. This promoter element is required for nifA- but not ntrC-mediated activation and for the inhibition of chromosomal nif expression observed when cells harbour multiple copies of certain nif promoters5. The upstream sequence is conserved among 10 Rhizobium and 2 Azotobacter nif promoters. We show that the positioning and orientation of the upstream sequence is not critical for promoter activity up to a distance of 2 kilobases (kb) and that the upstream sequence is itself transcriptionally inactive, probably acting in cis with the downstream sequences to produce a fully active promoter. Thus, an extended promoter structure is required for nif gene expression.

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References

  1. Dixon, R. A. J. gen. Microbiol. 130, 2745–2755 (1984).

    CAS  PubMed  Google Scholar 

  2. Brown, S. E. & Ausubel, F. M. J. Bact. 157, 143–147 (1984).

    CAS  PubMed  Google Scholar 

  3. Ow, D. W., Xiong, Y., Gu, Q. & Shen, S.-C. J. Bact. 161, 868–874 (1985).

    CAS  PubMed  Google Scholar 

  4. Buck, M., Khan, H. & Dixon, R. Nucleic Acids Res. 13, 7621–7638 (1985).

    Article  CAS  Google Scholar 

  5. Buchanan-Wollaston, V., Cannon, M. C. & Cannon, F. C. Molec. gen. Genet. 184, 102–106 (1981).

    Article  CAS  Google Scholar 

  6. Travers, A. A., Lamond, A. I., Mace, H. A. F. & Berman, M. L. Cell 35, 265–273 (1983).

    Article  CAS  Google Scholar 

  7. Gicquel-Sanzey, B. & Cossart, P. EMBO J. 1, 591–595 (1983).

    Article  Google Scholar 

  8. Drummond, M., Whitty, P. & Wootton, J. EMBO J. 5, 441–447 (1986).

    Article  CAS  Google Scholar 

  9. Riedel, G. E., Brown, S. E. & Ausubel, F. M. J. Bact. 153, 45–56 (1983).

    CAS  PubMed  Google Scholar 

  10. Drummond, M., Clements, J., Merrick, M. & Dixon, R. Nature 301, 302–307 (1983).

    Article  ADS  CAS  Google Scholar 

  11. Raibaud, O. & Schwartz, M. A. Rev. Genet. 18, 173–206 (1984).

    Article  CAS  Google Scholar 

  12. Dunn, T. M., Hahn, S., Ogden, S. & Schlief, R. F. Proc. natn. Acad. Sci. U.S.A. 81, 5017–5020 (1984).

    Article  ADS  CAS  Google Scholar 

  13. Majumdar, A. & Adhya, S. Proc. natn. Acad. Sci. U.S.A. 81, 6100–6104 (1984).

    Article  ADS  CAS  Google Scholar 

  14. Better, M., Ditta, G. & Helinski, D. EMBO J. 4, 2419–2424 (1985).

    Article  CAS  Google Scholar 

  15. Dynan, W. S. & Tjian, R. Nature 316, 774–778 (1985).

    Article  ADS  CAS  Google Scholar 

  16. Scott, K. F., Rolfe, B. G. & Shine, J. J. molec. appl. Genet. 1, 71–81 (1981).

    CAS  Google Scholar 

  17. Sundaresan, V., Jones, J. D. G., Ow, D. W. & Ausubel, F. M. Nature 301, 727–732 (1983).

    Article  ADS  Google Scholar 

  18. Scott, K. F., Rolfe, B. G. & Shine, J. DNA 2, 149–155 (1983).

    Article  CAS  Google Scholar 

  19. Scott, K. F., Rolfe, B. G. & Shine, J. DNA 2, 141–148 (1983).

    Article  CAS  Google Scholar 

  20. Weinman, J. J., Fellows, F. F., Gresshoff, P. M., Shine, J. & Scott, K. F. Nucleic Acids Res. 12, 8329–8344 (1984).

    Article  CAS  Google Scholar 

  21. Quinto, C. et al Proc. natn. Acad. Sci. U.S.A. 82, 1170–1174 (1985).

    Article  ADS  CAS  Google Scholar 

  22. Fuhrmann, M. & Hennecke, H. J. Bact. 158, 1005–1011 (1984).

    CAS  PubMed  Google Scholar 

  23. Kaluza, K. & Hennecke, H. Molec. gen. Genet. 196, 35–42 (1984).

    Article  CAS  Google Scholar 

  24. Yum, A. C. & Szalay, A. Proc. natn. Acad. Sci. 81, 7358–7362 (1984).

    Article  ADS  Google Scholar 

  25. Better, M., Lewis, B., Corbin, D., Ditta, G. & Helinski, D. R. Cell 35, 479–485 (1983).

    Article  CAS  Google Scholar 

  26. Brigle, K. E., Newton, W. E. & Dean, D. R. Gene 37, 37–44 (1985).

    Article  CAS  Google Scholar 

  27. Dean, D. R. & Brigle, K.-E. Proc. natn. Acad. Sci. U.S.A. 82, 5720–5723 (1985).

    Article  ADS  CAS  Google Scholar 

  28. Schofield, P. R. & Watson, J. M. Nucleic Acids Res. 13, 3407–3418 (1985).

    Article  CAS  Google Scholar 

  29. Hawley, D. K. & McClure, W. R. Nucleic Acids Res. 11, 2237–2255 (1983).

    Article  CAS  Google Scholar 

  30. Casadaban, M. J., Chou, J. & Cohen, S. N. J. Bact., 143, 971–980 (1980).

    CAS  PubMed  Google Scholar 

  31. Prentki, P. & Krisch, H. M. Gene 29, 303–313 (1984).

    Article  CAS  Google Scholar 

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Buck, M., Miller, S., Drummond, M. et al. Upstream activator sequences are present in the promoters of nitrogen fixation genes. Nature 320, 374–378 (1986). https://doi.org/10.1038/320374a0

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