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. 1993 Apr;37(4):696–701. doi: 10.1128/aac.37.4.696

Mutations in the gyrA gene of a highly fluoroquinolone-resistant clinical isolate of Escherichia coli.

P Heisig 1, H Schedletzky 1, H Falkenstein-Paul 1
PMCID: PMC187737  PMID: 8388197

Abstract

We have determined the DNA sequence of the gyrA gene of the fluoroquinolone-resistant Escherichia coli isolate 205096 (MIC of ciprofloxacin, 128 micrograms/ml), which was recently demonstrated to be a gyrA mutant (P. Heisig and B. Wiedemann, Antimicrob. Agents Chemother. 35:2031-2036, 1991). Compared with the gyrA+ gene of E. coli K-12, 55 nucleotide changes were found. Three of these resulted in amino acid exchanges: Ser-83-->Leu, Asp-87-->Gly, and Asp-678-->Glu. A 0.7-kb DNA fragment containing two of these mutations (Ser-83-->Leu and Asp-87-->Gly) was isolated and fused in frame to the residual 3' coding region of gyrA+ in a plasmid to yield a chimeric gyrA gene (gyrA#). After introduction into E. coli 205096, this gyrA# gene does not increase the fluoroquinolone susceptibility of the resulting heterodiploid strain in a dominance test, while the gyrA+ gene does. The ciprofloxacin concentration necessary to inhibit by 90% (IC90) the supercoiling activity of gyrase isolated from E. coli 205096 is above 2,000 micrograms/ml. An identical result was found for gyrase reconstituted in vitro from the gyrB+ gene product and the chimeric gyrA# gene product. This is more than a 4,000-fold increase compared with the IC90 determined for gyrase from E. coli K-12 (gyrA+) (IC90, 0.5 microgram of ciprofloxacin per ml). No indications for the involvement of the gyrB gene or for alterations in quinolone permeation were found.

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Selected References

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  1. Aoyama H., Sato K., Kato T., Hirai K., Mitsuhashi S. Norfloxacin resistance in a clinical isolate of Escherichia coli. Antimicrob Agents Chemother. 1987 Oct;31(10):1640–1641. doi: 10.1128/aac.31.10.1640. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Barry A. L., Fuchs P. C., Pfaller M. A., Allen S. D., Gerlach E. H. Prevalence of fluoroquinolone-resistant bacterial isolates in four medical centers during the first quarter of 1990. Eur J Clin Microbiol Infect Dis. 1990 Dec;9(12):906–908. doi: 10.1007/BF01967511. [DOI] [PubMed] [Google Scholar]
  3. 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]
  4. Chai T. J., Foulds J. Escherichia coli K-12 tolF mutants: alterations in protein composition of the outer membrane. J Bacteriol. 1977 May;130(2):781–786. doi: 10.1128/jb.130.2.781-786.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Cullen M. E., Wyke A. W., Kuroda R., Fisher L. M. Cloning and characterization of a DNA gyrase A gene from Escherichia coli that confers clinical resistance to 4-quinolones. Antimicrob Agents Chemother. 1989 Jun;33(6):886–894. doi: 10.1128/aac.33.6.886. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Dimri G. P., Das H. K. Cloning and sequence analysis of gyrA gene of Klebsiella pneumoniae. Nucleic Acids Res. 1990 Jan 11;18(1):151–156. doi: 10.1093/nar/18.1.151. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Duckworth G. J., Williams J. D. Frequency of appearance of resistant variants to norfloxacin and nalidixic acid. J Antimicrob Chemother. 1984 May;13 (Suppl B):33–38. doi: 10.1093/jac/13.suppl_b.33. [DOI] [PubMed] [Google Scholar]
  8. Gellert M. DNA topoisomerases. Annu Rev Biochem. 1981;50:879–910. doi: 10.1146/annurev.bi.50.070181.004311. [DOI] [PubMed] [Google Scholar]
  9. Gellert M., Fisher L. M., O'Dea M. H. DNA gyrase: purification and catalytic properties of a fragment of gyrase B protein. Proc Natl Acad Sci U S A. 1979 Dec;76(12):6289–6293. doi: 10.1073/pnas.76.12.6289. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Hallett P., Maxwell A. Novel quinolone resistance mutations of the Escherichia coli DNA gyrase A protein: enzymatic analysis of the mutant proteins. Antimicrob Agents Chemother. 1991 Feb;35(2):335–340. doi: 10.1128/aac.35.2.335. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Hane M. W., Wood T. H. Escherichia coli K-12 mutants resistant to nalidixic acid: genetic mapping and dominance studies. J Bacteriol. 1969 Jul;99(1):238–241. doi: 10.1128/jb.99.1.238-241.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Heisig P., Wiedemann B. Use of a broad-host-range gyrA plasmid for genetic characterization of fluoroquinolone-resistant gram-negative bacteria. Antimicrob Agents Chemother. 1991 Oct;35(10):2031–2036. doi: 10.1128/aac.35.10.2031. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Hopewell R., Oram M., Briesewitz R., Fisher L. M. DNA cloning and organization of the Staphylococcus aureus gyrA and gyrB genes: close homology among gyrase proteins and implications for 4-quinolone action and resistance. J Bacteriol. 1990 Jun;172(6):3481–3484. doi: 10.1128/jb.172.6.3481-3484.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Horowitz D. S., Wang J. C. Mapping the active site tyrosine of Escherichia coli DNA gyrase. J Biol Chem. 1987 Apr 15;262(11):5339–5344. [PubMed] [Google Scholar]
  15. Inoue S., Ohue T., Yamagishi J., Nakamura S., Shimizu M. Mode of incomplete cross-resistance among pipemidic, piromidic, and nalidixic acids. Antimicrob Agents Chemother. 1978 Aug;14(2):240–245. doi: 10.1128/aac.14.2.240. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Mizuuchi K., Mizuuchi M., O'Dea M. H., Gellert M. Cloning and simplified purification of Escherichia coli DNA gyrase A and B proteins. J Biol Chem. 1984 Jul 25;259(14):9199–9201. [PubMed] [Google Scholar]
  17. Moniot-Ville N., Guibert J., Moreau N., Acar J. F., Collatz E., Gutmann L. Mechanisms of quinolone resistance in a clinical isolate of Escherichia coli highly resistant to fluoroquinolones but susceptible to nalidixic acid. Antimicrob Agents Chemother. 1991 Mar;35(3):519–523. doi: 10.1128/aac.35.3.519. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Nakamura S., Nakamura M., Kojima T., Yoshida H. gyrA and gyrB mutations in quinolone-resistant strains of Escherichia coli. Antimicrob Agents Chemother. 1989 Feb;33(2):254–255. doi: 10.1128/aac.33.2.254. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Oram M., Fisher L. M. 4-Quinolone resistance mutations in the DNA gyrase of Escherichia coli clinical isolates identified by using the polymerase chain reaction. Antimicrob Agents Chemother. 1991 Feb;35(2):387–389. doi: 10.1128/aac.35.2.387. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. Piddock L. J., Hall M. C., Walters R. N. Phenotypic characterization of quinolone-resistant mutants of Enterobacteriaceae selected from wild type, gyrA type and multiply-resistant (marA) type strains. J Antimicrob Chemother. 1991 Aug;28(2):185–198. doi: 10.1093/jac/28.2.185. [DOI] [PubMed] [Google Scholar]
  21. Piddock L. J., Wise R. Mechanisms of resistance to quinolones and clinical perspectives. J Antimicrob Chemother. 1989 Apr;23(4):475–480. doi: 10.1093/jac/23.4.475. [DOI] [PubMed] [Google Scholar]
  22. Reece R. J., Maxwell A. Tryptic fragments of the Escherichia coli DNA gyrase A protein. J Biol Chem. 1989 Nov 25;264(33):19648–19653. [PubMed] [Google Scholar]
  23. Richmond M. H., Wotton S. Comparative study of seven cephalosporins: susceptibility to beta-lactamases and ability to penetrate the surface layers of Escherichia coli. Antimicrob Agents Chemother. 1976 Aug;10(2):219–222. doi: 10.1128/aac.10.2.219. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Sanders C. C., Sanders W. E., Jr, Goering R. V., Werner V. Selection of multiple antibiotic resistance by quinolones, beta-lactams, and aminoglycosides with special reference to cross-resistance between unrelated drug classes. Antimicrob Agents Chemother. 1984 Dec;26(6):797–801. doi: 10.1128/aac.26.6.797. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. 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]
  26. Sherman R. A. Central catheter infection: single-versus triple-lumen catheters. Am J Med. 1989 Jul;87(1):2–3. doi: 10.1016/s0002-9343(89)80469-3. [DOI] [PubMed] [Google Scholar]
  27. Sreedharan S., Oram M., Jensen B., Peterson L. R., Fisher L. M. DNA gyrase gyrA mutations in ciprofloxacin-resistant strains of Staphylococcus aureus: close similarity with quinolone resistance mutations in Escherichia coli. J Bacteriol. 1990 Dec;172(12):7260–7262. doi: 10.1128/jb.172.12.7260-7262.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. Sreedharan S., Peterson L. R., Fisher L. M. Ciprofloxacin resistance in coagulase-positive and -negative staphylococci: role of mutations at serine 84 in the DNA gyrase A protein of Staphylococcus aureus and Staphylococcus epidermidis. Antimicrob Agents Chemother. 1991 Oct;35(10):2151–2154. doi: 10.1128/aac.35.10.2151. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Staudenbauer W. L., Orr E. DNA gyrase: affinity chromatography on novobiocin-Sepharose and catalytic properties. Nucleic Acids Res. 1981 Aug 11;9(15):3589–3603. doi: 10.1093/nar/9.15.3589. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Swanberg S. L., Wang J. C. Cloning and sequencing of the Escherichia coli gyrA gene coding for the A subunit of DNA gyrase. J Mol Biol. 1987 Oct 20;197(4):729–736. doi: 10.1016/0022-2836(87)90479-7. [DOI] [PubMed] [Google Scholar]
  31. Tabor S., Richardson C. C. A bacteriophage T7 RNA polymerase/promoter system for controlled exclusive expression of specific genes. Proc Natl Acad Sci U S A. 1985 Feb;82(4):1074–1078. doi: 10.1073/pnas.82.4.1074. [DOI] [PMC free article] [PubMed] [Google Scholar]
  32. Vieira J., Messing J. The pUC plasmids, an M13mp7-derived system for insertion mutagenesis and sequencing with synthetic universal primers. Gene. 1982 Oct;19(3):259–268. doi: 10.1016/0378-1119(82)90015-4. [DOI] [PubMed] [Google Scholar]
  33. Wang J. C. DNA topoisomerases. Annu Rev Biochem. 1985;54:665–697. doi: 10.1146/annurev.bi.54.070185.003313. [DOI] [PubMed] [Google Scholar]
  34. Watanabe M., Kotera Y., Yosue K., Inoue M., Mitsuhashi S. In vitro emergence of quinolone-resistant mutants of Escherichia coli, Enterobacter cloacae, and Serratia marcescens. Antimicrob Agents Chemother. 1990 Jan;34(1):173–175. doi: 10.1128/aac.34.1.173. [DOI] [PMC free article] [PubMed] [Google Scholar]
  35. Wyckoff E., Natalie D., Nolan J. M., Lee M., Hsieh T. Structure of the Drosophila DNA topoisomerase II gene. Nucleotide sequence and homology among topoisomerases II. J Mol Biol. 1989 Jan 5;205(1):1–13. doi: 10.1016/0022-2836(89)90361-6. [DOI] [PubMed] [Google Scholar]
  36. Yamagishi J., Yoshida H., Yamayoshi M., Nakamura S. Nalidixic acid-resistant mutations of the gyrB gene of Escherichia coli. Mol Gen Genet. 1986 Sep;204(3):367–373. doi: 10.1007/BF00331012. [DOI] [PubMed] [Google Scholar]
  37. Yoshida H., Bogaki M., Nakamura M., Nakamura S. Quinolone resistance-determining region in the DNA gyrase gyrA gene of Escherichia coli. Antimicrob Agents Chemother. 1990 Jun;34(6):1271–1272. doi: 10.1128/aac.34.6.1271. [DOI] [PMC free article] [PubMed] [Google Scholar]
  38. Yoshida H., Bogaki M., Nakamura M., Yamanaka L. M., Nakamura S. Quinolone resistance-determining region in the DNA gyrase gyrB gene of Escherichia coli. Antimicrob Agents Chemother. 1991 Aug;35(8):1647–1650. doi: 10.1128/aac.35.8.1647. [DOI] [PMC free article] [PubMed] [Google Scholar]
  39. Yoshida H., Kojima T., Yamagishi J., Nakamura S. Quinolone-resistant mutations of the gyrA gene of Escherichia coli. Mol Gen Genet. 1988 Jan;211(1):1–7. doi: 10.1007/BF00338386. [DOI] [PubMed] [Google Scholar]

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