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. 1987 Jan;169(1):260–271. doi: 10.1128/jb.169.1.260-271.1987

Complementation of nitrogen-regulatory (ntr-like) mutations in Rhodobacter capsulatus by an Escherichia coli gene: cloning and sequencing of the gene and characterization of the gene product.

P Allibert, J C Willison, P M Vignais
PMCID: PMC211762  PMID: 3025172

Abstract

In vivo genetic engineering by R' plasmid formation was used to isolate an Escherichia coli gene that restored the Ntr+ phenotype to Ntr- mutants of the photosynthetic bacterium Rhodobacter capsulatus (formerly Rhodopseudomonas capsulata; J. F. Imhoff, H. G. Trüper, and N. Pfenning, Int. J. Syst. Bacteriol. 34:340-343, 1984). Nucleotide sequencing of the gene revealed no homology to the ntr genes of Klebsiella pneumoniae. Furthermore, hybridization experiments between the cloned gene and different F' plasmids indicated that the gene is located between 34 and 39 min on the E. coli genetic map and is therefore unlinked to the known ntr genes. The molecular weight of the gene product, deduced from the nucleotide sequence, was 30,563. After the gene was cloned in an expression vector, the gene product was purified. It was shown to have a pI of 5.8 and to behave as a dimer during gel filtration and on sucrose density gradients. Antibodies raised against the purified protein revealed the presence of this protein in R. capsulatus strains containing the E. coli gene, but not in other strains. Moreover, elimination of the plasmid carrying the E. coli gene from complemented strains resulted in the loss of the Ntr+ phenotype. Complementation of the R. capsulatus mutations by the E. coli gene therefore occurs in trans and results from the synthesis of a functional gene product.

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Selected References

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  1. Adler H. I., Fisher W. D., Cohen A., Hardigree A. A. MINIATURE escherichia coli CELLS DEFICIENT IN DNA. Proc Natl Acad Sci U S A. 1967 Feb;57(2):321–326. doi: 10.1073/pnas.57.2.321. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Ausubel F. M. Regulation of nitrogen fixation genes. Cell. 1984 May;37(1):5–6. doi: 10.1016/0092-8674(84)90294-0. [DOI] [PubMed] [Google Scholar]
  3. Avtges P., Kranz R. G., Haselkorn R. Isolation and organization of genes for nitrogen fixation in Rhodopseudomonas capsulata. Mol Gen Genet. 1985;201(3):363–369. doi: 10.1007/BF00331324. [DOI] [PubMed] [Google Scholar]
  4. Backman K. C., Chen Y. M., Ueno-Nishio S., Magasanik B. The product of glnL is not essential for regulation of bacterial nitrogen assimilation. J Bacteriol. 1983 Apr;154(1):516–519. doi: 10.1128/jb.154.1.516-519.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Beatty J. T., Cohen S. N. Hybridization of cloned Rhodopseudomonas capsulata photosynthesis genes with DNA from other photosynthetic bacteria. J Bacteriol. 1983 Jun;154(3):1440–1445. doi: 10.1128/jb.154.3.1440-1445.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Bender R. A., Snyder P. M., Bueno R., Quinto M., Magasanik B. Nitrogen regulation system of Klebsiella aerogenes: the nac gene. J Bacteriol. 1983 Oct;156(1):444–446. doi: 10.1128/jb.156.1.444-446.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Birnboim H. C., Doly J. A rapid alkaline extraction procedure for screening recombinant plasmid DNA. Nucleic Acids Res. 1979 Nov 24;7(6):1513–1523. doi: 10.1093/nar/7.6.1513. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Bittner M., Kupferer P., Morris C. F. Electrophoretic transfer of proteins and nucleic acids from slab gels to diazobenzyloxymethyl cellulose or nitrocellulose sheets. Anal Biochem. 1980 Mar 1;102(2):459–471. doi: 10.1016/0003-2697(80)90182-7. [DOI] [PubMed] [Google Scholar]
  9. Boyer H. W., Roulland-Dussoix D. A complementation analysis of the restriction and modification of DNA in Escherichia coli. J Mol Biol. 1969 May 14;41(3):459–472. doi: 10.1016/0022-2836(69)90288-5. [DOI] [PubMed] [Google Scholar]
  10. Bradford M. M. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem. 1976 May 7;72:248–254. doi: 10.1006/abio.1976.9999. [DOI] [PubMed] [Google Scholar]
  11. Broach J., Neumann C., Kustu S. Mutant strains (nit) of Salmonella typhimurium with a pleiotropic defect in nitrogen metabolism. J Bacteriol. 1976 Oct;128(1):86–98. doi: 10.1128/jb.128.1.86-98.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Bueno R., Pahel G., Magasanik B. Role of glnB and glnD gene products in regulation of the glnALG operon of Escherichia coli. J Bacteriol. 1985 Nov;164(2):816–822. doi: 10.1128/jb.164.2.816-822.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Buikema W. J., Szeto W. W., Lemley P. V., Orme-Johnson W. H., Ausubel F. M. Nitrogen fixation specific regulatory genes of Klebsiella pneumoniae and Rhizobium meliloti share homology with the general nitrogen regulatory gene ntrC of K. pneumoniae. Nucleic Acids Res. 1985 Jun 25;13(12):4539–4555. doi: 10.1093/nar/13.12.4539. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Chang J. Y. Manual micro-sequence analysis of polypeptides using dimethylaminoazobenzene isothiocyanate. Methods Enzymol. 1983;91:455–466. doi: 10.1016/s0076-6879(83)91043-1. [DOI] [PubMed] [Google Scholar]
  15. Chou P. Y., Fasman G. D. Prediction of the secondary structure of proteins from their amino acid sequence. Adv Enzymol Relat Areas Mol Biol. 1978;47:45–148. doi: 10.1002/9780470122921.ch2. [DOI] [PubMed] [Google Scholar]
  16. Close T. J., Shanmugam K. T. Genetic analysis of a pleiotropic mutant of Klebsiella pneumoniae affected in nitrogen metabolism. J Gen Microbiol. 1980 Feb;116(2):501–510. doi: 10.1099/00221287-116-2-501. [DOI] [PubMed] [Google Scholar]
  17. De Blas A. L., Cherwinski H. M. Detection of antigens on nitrocellulose paper immunoblots with monoclonal antibodies. Anal Biochem. 1983 Aug;133(1):214–219. doi: 10.1016/0003-2697(83)90245-2. [DOI] [PubMed] [Google Scholar]
  18. Ditta G., Stanfield S., Corbin D., Helinski D. R. Broad host range DNA cloning system for gram-negative bacteria: construction of a gene bank of Rhizobium meliloti. Proc Natl Acad Sci U S A. 1980 Dec;77(12):7347–7351. doi: 10.1073/pnas.77.12.7347. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Dixon R. A. The genetic complexity of nitrogen fixation. The ninth Fleming lecture. J Gen Microbiol. 1984 Nov;130(11):2745–2755. doi: 10.1099/00221287-130-11-2745. [DOI] [PubMed] [Google Scholar]
  20. Dretzen G., Bellard M., Sassone-Corsi P., Chambon P. A reliable method for the recovery of DNA fragments from agarose and acrylamide gels. Anal Biochem. 1981 Apr;112(2):295–298. doi: 10.1016/0003-2697(81)90296-7. [DOI] [PubMed] [Google Scholar]
  21. Drummond M., Whitty P., Wootton J. Sequence and domain relationships of ntrC and nifA from Klebsiella pneumoniae: homologies to other regulatory proteins. EMBO J. 1986 Feb;5(2):441–447. doi: 10.1002/j.1460-2075.1986.tb04230.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Dupuis A., Lunardi J., Issartel J. P., Vignais P. V. Interactions between the oligomycin sensitivity conferring protein (OSCP) and beef heart mitochondrial F1-ATPase. 2. Identification of the interacting F1 subunits by cross-linking. Biochemistry. 1985 Jan 29;24(3):734–739. doi: 10.1021/bi00324a030. [DOI] [PubMed] [Google Scholar]
  23. Espin G., Alvarez-Morales A., Cannon F., Dixon R., Merrick M. Cloning of the glnA, ntrB and ntrC genes of Klebsiella pneumoniae and studies of their role in regulation of the nitrogen fixation (nif) gene cluster. Mol Gen Genet. 1982;186(4):518–524. doi: 10.1007/BF00337959. [DOI] [PubMed] [Google Scholar]
  24. Ferro-Luzzi Ames G., Nikaido K. Nitrogen regulation in Salmonella typhimurium. Identification of an ntrC protein-binding site and definition of a consensus binding sequence. EMBO J. 1985 Feb;4(2):539–547. doi: 10.1002/j.1460-2075.1985.tb03662.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. Hawkes T., Merrick M., Dixon R. Interaction of purified NtrC protein with nitrogen regulated promoters from Klebsiella pneumoniae. Mol Gen Genet. 1985;201(3):492–498. doi: 10.1007/BF00331345. [DOI] [PubMed] [Google Scholar]
  26. Hawley D. K., McClure W. R. Compilation and analysis of Escherichia coli promoter DNA sequences. Nucleic Acids Res. 1983 Apr 25;11(8):2237–2255. doi: 10.1093/nar/11.8.2237. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Higgins C. F., Ames G. F., Barnes W. M., Clement J. M., Hofnung M. A novel intercistronic regulatory element of prokaryotic operons. Nature. 1982 Aug 19;298(5876):760–762. doi: 10.1038/298760a0. [DOI] [PubMed] [Google Scholar]
  28. Hillmer P., Gest H. H2 metabolism in the photosynthetic bacterium Rhodopseudomonas capsulata: H2 production by growing cultures. J Bacteriol. 1977 Feb;129(2):724–731. doi: 10.1128/jb.129.2.724-731.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Hirschman J., Wong P. K., Sei K., Keener J., Kustu S. Products of nitrogen regulatory genes ntrA and ntrC of enteric bacteria activate glnA transcription in vitro: evidence that the ntrA product is a sigma factor. Proc Natl Acad Sci U S A. 1985 Nov;82(22):7525–7529. doi: 10.1073/pnas.82.22.7525. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Hunt T. P., Magasanik B. Transcription of glnA by purified Escherichia coli components: core RNA polymerase and the products of glnF, glnG, and glnL. Proc Natl Acad Sci U S A. 1985 Dec;82(24):8453–8457. doi: 10.1073/pnas.82.24.8453. [DOI] [PMC free article] [PubMed] [Google Scholar]
  31. Ish-Horowicz D., Burke J. F. Rapid and efficient cosmid cloning. Nucleic Acids Res. 1981 Jul 10;9(13):2989–2998. doi: 10.1093/nar/9.13.2989. [DOI] [PMC free article] [PubMed] [Google Scholar]
  32. Kranz R. G., Haselkorn R. Characterization of nif regulatory genes in Rhodopseudomonas capsulata using lac gene fusions. Gene. 1985;40(2-3):203–215. doi: 10.1016/0378-1119(85)90043-5. [DOI] [PubMed] [Google Scholar]
  33. 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]
  34. Link G., Langridge U. Structure of the chloroplast gene for the precursor of the Mr 32,000 photosystem II protein from mustard (Sinapis alba L.). Nucleic Acids Res. 1984 Jan 25;12(2):945–958. doi: 10.1093/nar/12.2.945. [DOI] [PMC free article] [PubMed] [Google Scholar]
  35. MARTIN R. G., AMES B. N. A method for determining the sedimentation behavior of enzymes: application to protein mixtures. J Biol Chem. 1961 May;236:1372–1379. [PubMed] [Google Scholar]
  36. MacFarlane S. A., Merrick M. The nucleotide sequence of the nitrogen regulation gene ntrB and the glnA-ntrBC intergenic region of Klebsiella pneumoniae. Nucleic Acids Res. 1985 Nov 11;13(21):7591–7606. doi: 10.1093/nar/13.21.7591. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. Magasanik B. Genetic control of nitrogen assimilation in bacteria. Annu Rev Genet. 1982;16:135–168. doi: 10.1146/annurev.ge.16.120182.001031. [DOI] [PubMed] [Google Scholar]
  38. Marrs B. Mobilization of the genes for photosynthesis from Rhodopseudomonas capsulata by a promiscuous plasmid. J Bacteriol. 1981 Jun;146(3):1003–1012. doi: 10.1128/jb.146.3.1003-1012.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  39. Meagher R. B., Tait R. C., Betlach M., Boyer H. W. Protein expression in E. coli minicells by recombinant plasmids. Cell. 1977 Mar;10(3):521–536. doi: 10.1016/0092-8674(77)90039-3. [DOI] [PubMed] [Google Scholar]
  40. Merrick M. J., Gibbins J. R. The nucleotide sequence of the nitrogen-regulation gene ntrA of Klebsiella pneumoniae and comparison with conserved features in bacterial RNA polymerase sigma factors. Nucleic Acids Res. 1985 Nov 11;13(21):7607–7620. doi: 10.1093/nar/13.21.7607. [DOI] [PMC free article] [PubMed] [Google Scholar]
  41. Merrick M. J., Stewart W. D. Studies on the regulation and function of the Klebsiella pneumoniae ntrA gene. Gene. 1985;35(3):297–303. doi: 10.1016/0378-1119(85)90008-3. [DOI] [PubMed] [Google Scholar]
  42. Ninfa A. J., Magasanik B. Covalent modification of the glnG product, NRI, by the glnL product, NRII, regulates the transcription of the glnALG operon in Escherichia coli. Proc Natl Acad Sci U S A. 1986 Aug;83(16):5909–5913. doi: 10.1073/pnas.83.16.5909. [DOI] [PMC free article] [PubMed] [Google Scholar]
  43. O'Farrell P. H. High resolution two-dimensional electrophoresis of proteins. J Biol Chem. 1975 May 25;250(10):4007–4021. [PMC free article] [PubMed] [Google Scholar]
  44. O'Farrell P. H., Kutter E., Nakanishi M. A restriction map of the bacteriophage T4 genome. Mol Gen Genet. 1980;179(2):421–435. doi: 10.1007/BF00425473. [DOI] [PMC free article] [PubMed] [Google Scholar]
  45. Pabo C. O., Sauer R. T. Protein-DNA recognition. Annu Rev Biochem. 1984;53:293–321. doi: 10.1146/annurev.bi.53.070184.001453. [DOI] [PubMed] [Google Scholar]
  46. Plamann M. D., Stauffer L. T., Urbanowski M. L., Stauffer G. V. Complete nucleotide sequence of the E. coli glyA gene. Nucleic Acids Res. 1983 Apr 11;11(7):2065–2075. doi: 10.1093/nar/11.7.2065. [DOI] [PMC free article] [PubMed] [Google Scholar]
  47. Poncz M., Solowiejczyk D., Ballantine M., Schwartz E., Surrey S. "Nonrandom" DNA sequence analysis in bacteriophage M13 by the dideoxy chain-termination method. Proc Natl Acad Sci U S A. 1982 Jul;79(14):4298–4302. doi: 10.1073/pnas.79.14.4298. [DOI] [PMC free article] [PubMed] [Google Scholar]
  48. Reitzer L. J., Magasanik B. Transcription of glnA in E. coli is stimulated by activator bound to sites far from the promoter. Cell. 1986 Jun 20;45(6):785–792. doi: 10.1016/0092-8674(86)90553-2. [DOI] [PubMed] [Google Scholar]
  49. Riess G., Holloway B. W., Pühler A. R68.45, a plasmid with chromosome mobilizing ability (Cma) carries a tandem duplication. Genet Res. 1980 Aug;36(1):99–109. doi: 10.1017/s0016672300019704. [DOI] [PubMed] [Google Scholar]
  50. Rocha M., Vázquez M., Garciarrubio A., Covarrubias A. A. Nucleotide sequence of the glnA-glnL intercistronic region of Escherichia coli. Gene. 1985;37(1-3):91–99. doi: 10.1016/0378-1119(85)90261-6. [DOI] [PubMed] [Google Scholar]
  51. Sanger F., Coulson A. R. A rapid method for determining sequences in DNA by primed synthesis with DNA polymerase. J Mol Biol. 1975 May 25;94(3):441–448. doi: 10.1016/0022-2836(75)90213-2. [DOI] [PubMed] [Google Scholar]
  52. Sanger F., Nicklen S., Coulson A. R. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463–5467. doi: 10.1073/pnas.74.12.5463. [DOI] [PMC free article] [PubMed] [Google Scholar]
  53. Smith G. R., Halpern Y. S., Magasanik B. Genetic and metabolic control of enzymes responsible for histidine degradation in Salmonella typhimurium. 4-imidazolone-5-propionate amidohydrolase and N-formimino-L-glutamate formiminohydrolase. J Biol Chem. 1971 May 25;246(10):3320–3329. [PubMed] [Google Scholar]
  54. Soberon X., Covarrubias L., Bolivar F. Construction and characterization of new cloning vehicles. IV. Deletion derivatives of pBR322 and pBR325. Gene. 1980 May;9(3-4):287–305. doi: 10.1016/0378-1119(90)90328-o. [DOI] [PubMed] [Google Scholar]
  55. Taylor D. P., Cohen S. N., Clark W. G., Marrs B. L. Alignment of genetic and restriction maps of the photosynthesis region of the Rhodopseudomonas capsulata chromosome by a conjugation-mediated marker rescue technique. J Bacteriol. 1983 May;154(2):580–590. doi: 10.1128/jb.154.2.580-590.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  56. Toukdarian A., Kennedy C. Regulation of nitrogen metabolism in Azotobacter vinelandii: isolation of ntr and glnA genes and construction of ntr mutants. EMBO J. 1986 Feb;5(2):399–407. doi: 10.1002/j.1460-2075.1986.tb04225.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  57. 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]
  58. Vignais P. M., Colbeau A., Willison J. C., Jouanneau Y. Hydrogenase, nitrogenase, and hydrogen metabolism in the photosynthetic bacteria. Adv Microb Physiol. 1985;26:155–234. doi: 10.1016/s0065-2911(08)60397-5. [DOI] [PubMed] [Google Scholar]
  59. Wahl G. M., Stern M., Stark G. R. Efficient transfer of large DNA fragments from agarose gels to diazobenzyloxymethyl-paper and rapid hybridization by using dextran sulfate. Proc Natl Acad Sci U S A. 1979 Aug;76(8):3683–3687. doi: 10.1073/pnas.76.8.3683. [DOI] [PMC free article] [PubMed] [Google Scholar]
  60. Wall J. D., Johansson B. C., Gest H. A pleiotropic mutant of Rhodopseudomonas capsulata defective in nitrogen metabolism. Arch Microbiol. 1977 Dec 15;115(3):259–263. doi: 10.1007/BF00446450. [DOI] [PubMed] [Google Scholar]
  61. Weaver P. F., Wall J. D., Gest H. Characterization of Rhodopseudomonas capsulata. Arch Microbiol. 1975 Nov 7;105(3):207–216. doi: 10.1007/BF00447139. [DOI] [PubMed] [Google Scholar]
  62. Yanisch-Perron C., Vieira J., Messing J. Improved M13 phage cloning vectors and host strains: nucleotide sequences of the M13mp18 and pUC19 vectors. Gene. 1985;33(1):103–119. doi: 10.1016/0378-1119(85)90120-9. [DOI] [PubMed] [Google Scholar]
  63. Youvan D. C., Elder J. T., Sandlin D. E., Zsebo K., Alder D. P., Panopoulos N. J., Marrs B. L., Hearst J. E. R-prime site-directed transposon Tn7 mutagenesis of the photosynthetic apparatus in Rhodopseudomonas capsulata. J Mol Biol. 1982 Nov 25;162(1):17–41. doi: 10.1016/0022-2836(82)90160-7. [DOI] [PubMed] [Google Scholar]
  64. Zhu Y. S., Kaplan S. Effects of light, oxygen, and substrates on steady-state levels of mRNA coding for ribulose-1,5-bisphosphate carboxylase and light-harvesting and reaction center polypeptides in Rhodopseudomonas sphaeroides. J Bacteriol. 1985 Jun;162(3):925–932. doi: 10.1128/jb.162.3.925-932.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  65. Zsebo K. M., Wu F., Hearst J. E. Tn5.7 construction and physical mapping of pRPS404 containing photosynthetic genes from Rhodopseudomonas capsulata. Plasmid. 1984 Mar;11(2):182–184. doi: 10.1016/0147-619x(84)90023-4. [DOI] [PubMed] [Google Scholar]
  66. de Boer H. A., Comstock L. J., Vasser M. The tac promoter: a functional hybrid derived from the trp and lac promoters. Proc Natl Acad Sci U S A. 1983 Jan;80(1):21–25. doi: 10.1073/pnas.80.1.21. [DOI] [PMC free article] [PubMed] [Google Scholar]

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