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. 1982 Jul;151(1):524–527. doi: 10.1128/jb.151.1.524-527.1982

Bacillus subtilis DNA gyrase: purification of subunits and reconstitution of supercoiling activity.

E Orr, W L Staudenbauer
PMCID: PMC220277  PMID: 6282812

Abstract

DNA gyrase from Bacillus subtilis 168 was purified by affinity chromatography on novobiocin-Sepharose and shown to consist of two subunits, A and B, with molecular weights of 100,000 and 85,000, respectively. The B subunits, which contains novobiocin-sensitive. ATPase activity, could complement the gyrA protein of Escherichia coli. No complementation was detected between the A subunit and the E. coli gyrB protein.

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Selected References

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  1. 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]
  2. Gellert M. DNA topoisomerases. Annu Rev Biochem. 1981;50:879–910. doi: 10.1146/annurev.bi.50.070181.004311. [DOI] [PubMed] [Google Scholar]
  3. Gellert M., Mizuuchi K., O'Dea M. H., Nash H. A. DNA gyrase: an enzyme that introduces superhelical turns into DNA. Proc Natl Acad Sci U S A. 1976 Nov;73(11):3872–3876. doi: 10.1073/pnas.73.11.3872. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Klevan L., Wang J. C. Deoxyribonucleic acid gyrase-deoxyribonucleic acid complex containing 140 base pairs of deoxyribonucleic acid and an alpha 2 beta 2 protein core. Biochemistry. 1980 Nov 11;19(23):5229–5234. doi: 10.1021/bi00564a012. [DOI] [PubMed] [Google Scholar]
  5. 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]
  6. Liu L. F., Wang J. C. Micrococcus luteus DNA gyrase: active components and a model for its supercoiling of DNA. Proc Natl Acad Sci U S A. 1978 May;75(5):2098–2102. doi: 10.1073/pnas.75.5.2098. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Orr E., Fairweather N. F., Holland I. B., Pritchard R. H. Isolation and characterisation of a strain carrying a conditional lethal mutation in the cou gene of Escherichia coli K12. Mol Gen Genet. 1979;177(1):103–112. doi: 10.1007/BF00267259. [DOI] [PubMed] [Google Scholar]
  8. Orr E., Staudenbauer W. L. An Escherichia coli mutant thermosensitive in the B subunit of DNA gyrase: effect on the structure and replication of the colicin E1 plasmid in vitro. Mol Gen Genet. 1981;181(1):52–56. doi: 10.1007/BF00339004. [DOI] [PubMed] [Google Scholar]
  9. Shlomai J., Polder L., Arai K., Kornberg A. Replication of phi X174 dna with purified enzymes. I. Conversion of viral DNA to a supercoiled, biologically active duplex. J Biol Chem. 1981 May 25;256(10):5233–5238. [PubMed] [Google Scholar]
  10. Spector T. Refinement of the coomassie blue method of protein quantitation. A simple and linear spectrophotometric assay for less than or equal to 0.5 to 50 microgram of protein. Anal Biochem. 1978 May;86(1):142–146. doi: 10.1016/0003-2697(78)90327-5. [DOI] [PubMed] [Google Scholar]
  11. 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]
  12. Sugino A., Bott K. F. Bacillus subtilis deoxyribonucleic acid gyrase. J Bacteriol. 1980 Mar;141(3):1331–1339. doi: 10.1128/jb.141.3.1331-1339.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]

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