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. 1993 Apr 1;90(7):2999–3003. doi: 10.1073/pnas.90.7.2999

Sites of predicted stress-induced DNA duplex destabilization occur preferentially at regulatory loci.

C J Benham 1
PMCID: PMC46224  PMID: 8385354

Abstract

This paper describes a computational method to predict the sites on a DNA molecule where imposed superhelical stresses destabilize the duplex. Several DNA sequences are analyzed in this way, including the pBR322 and ColE1 plasmids, bacteriophage f1, and the polyoma and bovine papilloma virus genomes. Superhelical destabilization in these molecules is predicted to occur at small numbers of discrete sites, most of which are within regulatory regions. The most destabilized sites include the terminator and promoter regions of specific plasmid operons, the LexA binding sites of genes under SOS control, the intergenic control region of bacteriophage f1, and the polyadenylylation sites in eukaryotic viruses. These results demonstrate the existence of close correspondences between sites of predicted superhelical duplex destabilization and specific types of regulatory regions. The use of these correspondences to supplement string-matching techniques in the search for regulatory loci is discussed.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Baker T. A., Sekimizu K., Funnell B. E., Kornberg A. Extensive unwinding of the plasmid template during staged enzymatic initiation of DNA replication from the origin of the Escherichia coli chromosome. Cell. 1986 Apr 11;45(1):53–64. doi: 10.1016/0092-8674(86)90537-4. [DOI] [PubMed] [Google Scholar]
  2. Beattie K. L., Wiegand R. C., Radding C. M. Uptake of homologous single-stranded fragments by superhelical DNA. II. Characterization of the reaction. J Mol Biol. 1977 Nov;116(4):783–803. doi: 10.1016/0022-2836(77)90271-6. [DOI] [PubMed] [Google Scholar]
  3. Benham C. J. Energetics of the strand separation transition in superhelical DNA. J Mol Biol. 1992 Jun 5;225(3):835–847. doi: 10.1016/0022-2836(92)90404-8. [DOI] [PubMed] [Google Scholar]
  4. Brahms J. G., Dargouge O., Brahms S., Ohara Y., Vagner V. Activation and inhibition of transcription by supercoiling. J Mol Biol. 1985 Feb 20;181(4):455–465. doi: 10.1016/0022-2836(85)90419-x. [DOI] [PubMed] [Google Scholar]
  5. Chan P. T., Ohmori H., Tomizawa J., Lebowitz J. Nucleotide sequence and gene organization of ColE1 DNA. J Biol Chem. 1985 Jul 25;260(15):8925–8935. [PubMed] [Google Scholar]
  6. 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]
  7. 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]
  8. Drew H. R., Weeks J. R., Travers A. A. Negative supercoiling induces spontaneous unwinding of a bacterial promoter. EMBO J. 1985 Apr;4(4):1025–1032. doi: 10.1002/j.1460-2075.1985.tb03734.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Ebina Y., Nakazawa A. Cyclic AMP-dependent initiation and rho-dependent termination of colicin E1 gene transcription. J Biol Chem. 1983 Jun 10;258(11):7072–7078. [PubMed] [Google Scholar]
  10. Gellert M. DNA topoisomerases. Annu Rev Biochem. 1981;50:879–910. doi: 10.1146/annurev.bi.50.070181.004311. [DOI] [PubMed] [Google Scholar]
  11. Goldstein E., Drlica K. Regulation of bacterial DNA supercoiling: plasmid linking numbers vary with growth temperature. Proc Natl Acad Sci U S A. 1984 Jul;81(13):4046–4050. doi: 10.1073/pnas.81.13.4046. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. 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]
  13. Hill D. F., Petersen G. B. Nucleotide sequence of bacteriophage f1 DNA. J Virol. 1982 Oct;44(1):32–46. doi: 10.1128/jvi.44.1.32-46.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Horiuchi K. Interaction between gene II protein and the DNA replication origin of bacteriophage f1. J Mol Biol. 1986 Mar 20;188(2):215–223. doi: 10.1016/0022-2836(86)90306-2. [DOI] [PubMed] [Google Scholar]
  15. Isberg R. R., Syvanen M. DNA gyrase is a host factor required for transposition of Tn5. Cell. 1982 Aug;30(1):9–18. doi: 10.1016/0092-8674(82)90006-x. [DOI] [PubMed] [Google Scholar]
  16. Kowalski D., Eddy M. J. The DNA unwinding element: a novel, cis-acting component that facilitates opening of the Escherichia coli replication origin. EMBO J. 1989 Dec 20;8(13):4335–4344. doi: 10.1002/j.1460-2075.1989.tb08620.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Kowalski D., Natale D. A., Eddy M. J. Stable DNA unwinding, not "breathing," accounts for single-strand-specific nuclease hypersensitivity of specific A+T-rich sequences. Proc Natl Acad Sci U S A. 1988 Dec;85(24):9464–9468. doi: 10.1073/pnas.85.24.9464. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Malkhosyan S. R., Panchenko YuA, Rekesh A. N. A physiological role for DNA supercoiling in the anaerobic regulation of colicin gene expression. Mol Gen Genet. 1991 Feb;225(2):342–345. doi: 10.1007/BF00269868. [DOI] [PubMed] [Google Scholar]
  19. Miller J. H., Nelson J. M., Ye M., Swenberg C. E., Speicher J. M., Benham C. J. Negative supercoiling increases the sensitivity of plasmid DNA to single-strand break induction by X-rays. Int J Radiat Biol. 1991 Apr;59(4):941–949. doi: 10.1080/09553009114550831. [DOI] [PubMed] [Google Scholar]
  20. Mizutani M., Ura K., Hirose S. DNA superhelicity affects the formation of transcription preinitiation complex on eukaryotic genes differently. Nucleic Acids Res. 1991 Jun 11;19(11):2907–2911. doi: 10.1093/nar/19.11.2907. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Ni Bhriain N., Dorman C. J., Higgins C. F. An overlap between osmotic and anaerobic stress responses: a potential role for DNA supercoiling in the coordinate regulation of gene expression. Mol Microbiol. 1989 Jul;3(7):933–942. doi: 10.1111/j.1365-2958.1989.tb00243.x. [DOI] [PubMed] [Google Scholar]
  22. Phizicky E. M., Roberts J. W. Induction of SOS functions: regulation of proteolytic activity of E. coli RecA protein by interaction with DNA and nucleoside triphosphate. Cell. 1981 Jul;25(1):259–267. doi: 10.1016/0092-8674(81)90251-8. [DOI] [PubMed] [Google Scholar]
  23. Pruss G. J., Drlica K. DNA supercoiling and prokaryotic transcription. Cell. 1989 Feb 24;56(4):521–523. doi: 10.1016/0092-8674(89)90574-6. [DOI] [PubMed] [Google Scholar]
  24. Richet E., Abcarian P., Nash H. A. The interaction of recombination proteins with supercoiled DNA: defining the role of supercoiling in lambda integrative recombination. Cell. 1986 Sep 26;46(7):1011–1021. doi: 10.1016/0092-8674(86)90700-2. [DOI] [PubMed] [Google Scholar]
  25. Richet E., Raibaud O. Supercoiling is essential for the formation and stability of the initiation complex at the divergent malEp and malKp promoters. J Mol Biol. 1991 Apr 5;218(3):529–542. doi: 10.1016/0022-2836(91)90699-7. [DOI] [PubMed] [Google Scholar]
  26. Soeda E., Arrand J. R., Smolar N., Walsh J. E., Griffin B. E. Coding potential and regulatory signals of the polyoma virus genome. Nature. 1980 Jan 31;283(5746):445–453. doi: 10.1038/283445a0. [DOI] [PubMed] [Google Scholar]
  27. Vinograd J., Lebowitz J., Watson R. Early and late helix-coil transitions in closed circular DNA. The number of superhelical turns in polyoma DNA. J Mol Biol. 1968 Apr 14;33(1):173–197. doi: 10.1016/0022-2836(68)90287-8. [DOI] [PubMed] [Google Scholar]
  28. Wu H. Y., Shyy S. H., Wang J. C., Liu L. F. Transcription generates positively and negatively supercoiled domains in the template. Cell. 1988 May 6;53(3):433–440. doi: 10.1016/0092-8674(88)90163-8. [DOI] [PubMed] [Google Scholar]
  29. 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]

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