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. 1989 May;55(5):1157–1164. doi: 10.1128/aem.55.5.1157-1164.1989

Hydrogenase synthesis in Bradyrhizobium japonicum Hupc mutants is altered in sensitivity to DNA gyrase inhibitors.

P D Novak 1, R J Maier 1
PMCID: PMC184270  PMID: 2547335

Abstract

In the Hupc mutants of Bradyrhizobium japonicum SR, regulation of expression of hydrogenase is altered; the mutants synthesize hydrogenase constitutively in the presence of atmospheric levels of oxygen. The DNA gyrase inhibitors nalidixic acid, novobiocin, and coumermycin were used to inhibit growth of wild-type and mutant cells. For each inhibitor tested, growth of mutant and wild-type strains was equally sensitive. However, in contrast to the wild type, the Hupc mutants synthesized hydrogenase in the presence of high levels of any inhibitor. Cells were incubated with the drugs and simultaneously labeled with 14C-labeled amino acids, and hydrogenase was immunoprecipitated with antibody to the large subunit of the enzyme. Fluorograms of antibody blots then were scanned to determine the relative amount of hydrogenase (large subunit) synthesized in the presence or absence of the gyrase inhibitors. The amount of hydrogenase synthesized by the Hupc mutants in the presence of 300 micrograms of nalidixic acid per ml was near the level of enzyme synthesized in the absence of the inhibitor. No hydrogenase was detected in antibody blots of wild-type cultures which were derepressed for hydrogenase in the presence of 100 micrograms of coumermycin or novobiocin per ml. In contrast, hydrogenase was synthesized by the Hupc mutants in the presence of 100 micrograms of either drug per ml. The amount synthesized ranged from 5 to 32% and 20 to 49%, respectively, of that in the absence of those inhibitors, but nevertheless, hydrogenase synthesis was detected in all of the mutants examined.(ABSTRACT TRUNCATED AT 250 WORDS)

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Selected References

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  1. Axley M. J., Stadtman T. C. Anaerobic induction of Escherichia coli formate dehydrogenase (hydrogenase-linked) is enhanced by gyrase inactivation. Proc Natl Acad Sci U S A. 1988 Feb;85(4):1023–1027. doi: 10.1073/pnas.85.4.1023. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Bishop P. E., Guevara J. G., Engelke J. A., Evans H. J. Relation between Glutamine Synthetase and Nitrogenase Activities in the Symbiotic Association between Rhizobium japonicum and Glycine max. Plant Physiol. 1976 Apr;57(4):542–546. doi: 10.1104/pp.57.4.542. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Cozzarelli N. R. DNA gyrase and the supercoiling of DNA. Science. 1980 Feb 29;207(4434):953–960. doi: 10.1126/science.6243420. [DOI] [PubMed] [Google Scholar]
  4. Dorman C. J., Barr G. C., Ni Bhriain N., Higgins C. F. DNA supercoiling and the anaerobic and growth phase regulation of tonB gene expression. J Bacteriol. 1988 Jun;170(6):2816–2826. doi: 10.1128/jb.170.6.2816-2826.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Drlica K. Biology of bacterial deoxyribonucleic acid topoisomerases. Microbiol Rev. 1984 Dec;48(4):273–289. doi: 10.1128/mr.48.4.273-289.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Gellert M. DNA topoisomerases. Annu Rev Biochem. 1981;50:879–910. doi: 10.1146/annurev.bi.50.070181.004311. [DOI] [PubMed] [Google Scholar]
  7. Gudas L. J., Pardee A. B. Model for regulation of Escherichia coli DNA repair functions. Proc Natl Acad Sci U S A. 1975 Jun;72(6):2330–2334. doi: 10.1073/pnas.72.6.2330. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Higgins C. F., Dorman C. J., Stirling D. A., Waddell L., Booth I. R., May G., Bremer E. A physiological role for DNA supercoiling in the osmotic regulation of gene expression in S. typhimurium and E. coli. Cell. 1988 Feb 26;52(4):569–584. doi: 10.1016/0092-8674(88)90470-9. [DOI] [PubMed] [Google Scholar]
  9. Higgins N. P., Cozzarelli N. R. The binding of gyrase to DNA: analysis by retention by nitrocellulose filters. Nucleic Acids Res. 1982 Nov 11;10(21):6833–6847. doi: 10.1093/nar/10.21.6833. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Jovanovich S. B., Lebowitz J. Estimation of the effect of coumermycin A1 on Salmonella typhimurium promoters by using random operon fusions. J Bacteriol. 1987 Oct;169(10):4431–4435. doi: 10.1128/jb.169.10.4431-4435.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Kranz R. G., Haselkorn R. Anaerobic regulation of nitrogen-fixation genes in Rhodopseudomonas capsulata. Proc Natl Acad Sci U S A. 1986 Sep;83(18):6805–6809. doi: 10.1073/pnas.83.18.6805. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
  13. Liu L. F., Davis J. L., Calendar R. Novel topologically knotted DNA from bacteriophage P4 capsids: studies with DNA topoisomerases. Nucleic Acids Res. 1981 Aug 25;9(16):3979–3989. doi: 10.1093/nar/9.16.3979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Maier R. J., Hanus F. J., Evans H. J. Regulation of hydrogenase in Rhizobium japonicum. J Bacteriol. 1979 Feb;137(2):825–829. doi: 10.1128/jb.137.2.825-829.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Maier R. J. Rhizobium japonicum mutant strains unable to grow chemoautotrophically with H2. J Bacteriol. 1981 Jan;145(1):533–540. doi: 10.1128/jb.145.1.533-540.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Manes S. H., Pruss G. J., Drlica K. Inhibition of RNA synthesis by oxolinic acid is unrelated to average DNA supercoiling. J Bacteriol. 1983 Jul;155(1):420–423. doi: 10.1128/jb.155.1.420-423.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. McClure W. R. Mechanism and control of transcription initiation in prokaryotes. Annu Rev Biochem. 1985;54:171–204. doi: 10.1146/annurev.bi.54.070185.001131. [DOI] [PubMed] [Google Scholar]
  18. Menzel R., Gellert M. Fusions of the Escherichia coli gyrA and gyrB control regions to the galactokinase gene are inducible by coumermycin treatment. J Bacteriol. 1987 Mar;169(3):1272–1278. doi: 10.1128/jb.169.3.1272-1278.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Merberg D., Maier R. J. Coordinate expression of hydrogenase and ribulose bisphosphate carboxylase in Rhizobium japonicum Hupc mutants. J Bacteriol. 1984 Oct;160(1):448–450. doi: 10.1128/jb.160.1.448-450.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. Merberg D., Maier R. J. Mutants of Rhizobium japonicum with Increased Hydrogenase Activity. Science. 1983 Jun 3;220(4601):1064–1065. doi: 10.1126/science.220.4601.1064. [DOI] [PubMed] [Google Scholar]
  21. Merberg D., O'Hara E. B., Maier R. J. Regulation of hydrogenase in Rhizobium japonicum: analysis of mutants altered in regulation by carbon substrates and oxygen. J Bacteriol. 1983 Dec;156(3):1236–1242. doi: 10.1128/jb.156.3.1236-1242.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Mizuuchi K., Fisher L. M., O'Dea M. H., Gellert M. DNA gyrase action involves the introduction of transient double-strand breaks into DNA. Proc Natl Acad Sci U S A. 1980 Apr;77(4):1847–1851. doi: 10.1073/pnas.77.4.1847. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Neidhardt F. C., VanBogelen R. A., Vaughn V. The genetics and regulation of heat-shock proteins. Annu Rev Genet. 1984;18:295–329. doi: 10.1146/annurev.ge.18.120184.001455. [DOI] [PubMed] [Google Scholar]
  24. Nixon B. T., Ronson C. W., Ausubel F. M. Two-component regulatory systems responsive to environmental stimuli share strongly conserved domains with the nitrogen assimilation regulatory genes ntrB and ntrC. Proc Natl Acad Sci U S A. 1986 Oct;83(20):7850–7854. doi: 10.1073/pnas.83.20.7850. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. Novak P. D., Maier R. J. Inhibition of hydrogenase synthesis by DNA gyrase inhibitors in Bradyrhizobium japonicum. J Bacteriol. 1987 Jun;169(6):2708–2712. doi: 10.1128/jb.169.6.2708-2712.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  26. O'Brian M. R., Maier R. J. Expression of cytochrome o in hydrogen uptake constitutive mutants of Rhizobium japonicum. J Bacteriol. 1985 Feb;161(2):507–514. doi: 10.1128/jb.161.2.507-514.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Ronson C. W., Nixon B. T., Ausubel F. M. Conserved domains in bacterial regulatory proteins that respond to environmental stimuli. Cell. 1987 Jun 5;49(5):579–581. doi: 10.1016/0092-8674(87)90530-7. [DOI] [PubMed] [Google Scholar]
  28. Rudd K. E., Menzel R. his operons of Escherichia coli and Salmonella typhimurium are regulated by DNA supercoiling. Proc Natl Acad Sci U S A. 1987 Jan;84(2):517–521. doi: 10.1073/pnas.84.2.517. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Ryan M. J. Coumermycin A1: A preferential inhibitor of replicative DNA synthesis in Escherichia coli. I. In vivo characterization. Biochemistry. 1976 Aug 24;15(17):3769–3777. doi: 10.1021/bi00662a020. [DOI] [PubMed] [Google Scholar]
  30. Sanzey B. Modulation of gene expression by drugs affecting deoxyribonucleic acid gyrase. J Bacteriol. 1979 Apr;138(1):40–47. doi: 10.1128/jb.138.1.40-47.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  31. Shaw D. J., Rice D. W., Guest J. R. Homology between CAP and Fnr, a regulator of anaerobic respiration in Escherichia coli. J Mol Biol. 1983 May 15;166(2):241–247. doi: 10.1016/s0022-2836(83)80011-4. [DOI] [PubMed] [Google Scholar]
  32. Shuman H., Schwartz M. The effect of nalidixic acid on the expression of some genes in Escherichia coli K-12. Biochem Biophys Res Commun. 1975 May 5;64(1):204–209. doi: 10.1016/0006-291x(75)90239-9. [DOI] [PubMed] [Google Scholar]
  33. Sternglanz R., DiNardo S., Voelkel K. A., Nishimura Y., Hirota Y., Becherer K., Zumstein L., Wang J. C. Mutations in the gene coding for Escherichia coli DNA topoisomerase I affect transcription and transposition. Proc Natl Acad Sci U S A. 1981 May;78(5):2747–2751. doi: 10.1073/pnas.78.5.2747. [DOI] [PMC free article] [PubMed] [Google Scholar]
  34. Stults L. W., Moshiri F., Maier R. J. Aerobic purification of hydrogenase from Rhizobium japonicum by affinity chromatography. J Bacteriol. 1986 Jun;166(3):795–800. doi: 10.1128/jb.166.3.795-800.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  35. Suissa M., Reid G. A. Preparation and use of antibodies against insoluble membrane proteins. Methods Enzymol. 1983;97:305–311. doi: 10.1016/0076-6879(83)97142-2. [DOI] [PubMed] [Google Scholar]
  36. Towbin H., Staehelin T., Gordon J. Electrophoretic transfer of proteins from polyacrylamide gels to nitrocellulose sheets: procedure and some applications. Proc Natl Acad Sci U S A. 1979 Sep;76(9):4350–4354. doi: 10.1073/pnas.76.9.4350. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. Wang J. C. DNA topoisomerases. Annu Rev Biochem. 1985;54:665–697. doi: 10.1146/annurev.bi.54.070185.003313. [DOI] [PubMed] [Google Scholar]
  38. Whitson P. A., Hsieh W. T., Wells R. D., Matthews K. S. Influence of supercoiling and sequence context on operator DNA binding with lac repressor. J Biol Chem. 1987 Oct 25;262(30):14592–14599. [PubMed] [Google Scholar]
  39. Winans S. C., Ebert P. R., Stachel S. E., Gordon M. P., Nester E. W. A gene essential for Agrobacterium virulence is homologous to a family of positive regulatory loci. Proc Natl Acad Sci U S A. 1986 Nov;83(21):8278–8282. doi: 10.1073/pnas.83.21.8278. [DOI] [PMC free article] [PubMed] [Google Scholar]
  40. Yamamoto N., Droffner M. L. Mechanisms determining aerobic or anaerobic growth in the facultative anaerobe Salmonella typhimurium. Proc Natl Acad Sci U S A. 1985 Apr;82(7):2077–2081. doi: 10.1073/pnas.82.7.2077. [DOI] [PMC free article] [PubMed] [Google Scholar]
  41. Yang H. L., Heller K., Gellert M., Zubay G. Differential sensitivity of gene expression in vitro to inhibitors of DNA gyrase. Proc Natl Acad Sci U S A. 1979 Jul;76(7):3304–3308. doi: 10.1073/pnas.76.7.3304. [DOI] [PMC free article] [PubMed] [Google Scholar]
  42. van Berkum P. Expression of uptake hydrogenase and hydrogen oxidation during heterotrophic growth of Bradyrhizobium japonicum. J Bacteriol. 1987 Oct;169(10):4565–4569. doi: 10.1128/jb.169.10.4565-4569.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]

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