Skip to main content
Journal of Bacteriology logoLink to Journal of Bacteriology
. 1996 Oct;178(19):5790–5792. doi: 10.1128/jb.178.19.5790-5792.1996

The nucleoid protein H-NS facilitates chromosome DNA replication in Escherichia coli dnaA mutants.

T Katayama 1, M Takata 1, K Sekimizu 1
PMCID: PMC178422  PMID: 8824628

Abstract

Growth inhibition of the dnaA(Cs) mutant, which overinitiates chromosome replication, was shown to be dependent upon the nucleoid protein H-NS. [3H]thymine incorporation experiments indicated that the absence of H-NS inhibited overreplication by the dnaA(Cs) mutant. In addition, the temperature-sensitive phenotype of a dnaA46 mutant was enhanced by disruption of H-NS. These observations suggest that H-NS directly or indirectly facilitates the initiation of chromosome replication.

Full Text

The Full Text of this article is available as a PDF (173.5 KB).

Selected References

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

  1. Braun R. E., O'Day K., Wright A. Cloning and characterization of dnaA(Cs), a mutation which leads to overinitiation of DNA replication in Escherichia coli K-12. J Bacteriol. 1987 Sep;169(9):3898–3903. doi: 10.1128/jb.169.9.3898-3903.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Craig N. L., Nash H. A. E. coli integration host factor binds to specific sites in DNA. Cell. 1984 Dec;39(3 Pt 2):707–716. doi: 10.1016/0092-8674(84)90478-1. [DOI] [PubMed] [Google Scholar]
  3. Dixon N. E., Kornberg A. Protein HU in the enzymatic replication of the chromosomal origin of Escherichia coli. Proc Natl Acad Sci U S A. 1984 Jan;81(2):424–428. doi: 10.1073/pnas.81.2.424. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Drlica K., Rouviere-Yaniv J. Histonelike proteins of bacteria. Microbiol Rev. 1987 Sep;51(3):301–319. doi: 10.1128/mr.51.3.301-319.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Filutowicz M., Ross W., Wild J., Gourse R. L. Involvement of Fis protein in replication of the Escherichia coli chromosome. J Bacteriol. 1992 Jan;174(2):398–407. doi: 10.1128/jb.174.2.398-407.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Friedrich K., Gualerzi C. O., Lammi M., Losso M. A., Pon C. L. Proteins from the prokaryotic nucleoid. Interaction of nucleic acids with the 15 kDa Escherichia coli histone-like protein H-NS. FEBS Lett. 1988 Feb 29;229(1):197–202. doi: 10.1016/0014-5793(88)80826-3. [DOI] [PubMed] [Google Scholar]
  7. Gille H., Egan J. B., Roth A., Messer W. The FIS protein binds and bends the origin of chromosomal DNA replication, oriC, of Escherichia coli. Nucleic Acids Res. 1991 Aug 11;19(15):4167–4172. doi: 10.1093/nar/19.15.4167. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Hodges-Garcia Y., Hagerman P. J., Pettijohn D. E. DNA ring closure mediated by protein HU. J Biol Chem. 1989 Sep 5;264(25):14621–14623. [PubMed] [Google Scholar]
  9. Hwang D. S., Kaguni J. M. Purification and characterization of the dnaA46 gene product. J Biol Chem. 1988 Aug 5;263(22):10625–10632. [PubMed] [Google Scholar]
  10. Hwang D. S., Kornberg A. Opening of the replication origin of Escherichia coli by DnaA protein with protein HU or IHF. J Biol Chem. 1992 Nov 15;267(32):23083–23086. [PubMed] [Google Scholar]
  11. Kaidow A., Wachi M., Nakamura J., Magae J., Nagai K. Anucleate cell production by Escherichia coli delta hns mutant lacking a histone-like protein, H-NS. J Bacteriol. 1995 Jun;177(12):3589–3592. doi: 10.1128/jb.177.12.3589-3592.1995. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Kano Y., Imamoto F. Requirement of integration host factor (IHF) for growth of Escherichia coli deficient in HU protein. Gene. 1990 Apr 30;89(1):133–137. doi: 10.1016/0378-1119(90)90216-e. [DOI] [PubMed] [Google Scholar]
  13. Kano Y., Ogawa T., Ogura T., Hiraga S., Okazaki T., Imamoto F. Participation of the histone-like protein HU and of IHF in minichromosomal maintenance in Escherichia coli. Gene. 1991 Jul 15;103(1):25–30. doi: 10.1016/0378-1119(91)90386-p. [DOI] [PubMed] [Google Scholar]
  14. Katayama T., Crooke E. DnaA protein is sensitive to a soluble factor and is specifically inactivated for initiation of in vitro replication of the Escherichia coli minichromosome. J Biol Chem. 1995 Apr 21;270(16):9265–9271. doi: 10.1074/jbc.270.16.9265. [DOI] [PubMed] [Google Scholar]
  15. Katayama T., Crooke E., Sekimizu K. Characterization of Escherichia coli DnaAcos protein in replication systems reconstituted with highly purified proteins. Mol Microbiol. 1995 Dec;18(5):813–820. doi: 10.1111/j.1365-2958.1995.18050813.x. [DOI] [PubMed] [Google Scholar]
  16. Katayama T., Kornberg A. Hyperactive initiation of chromosomal replication in vivo and in vitro by a mutant initiator protein, DnaAcos, of Escherichia coli. J Biol Chem. 1994 Apr 29;269(17):12698–12703. [PubMed] [Google Scholar]
  17. Katayama T., Nagata T. Initiation of chromosomal DNA replication which is stimulated without oversupply of DnaA protein in Escherichia coli. Mol Gen Genet. 1991 May;226(3):491–502. doi: 10.1007/BF00260663. [DOI] [PubMed] [Google Scholar]
  18. Katayama T. The mutant DnaAcos protein which overinitiates replication of the Escherichia coli chromosome is inert to negative regulation for initiation. J Biol Chem. 1994 Sep 2;269(35):22075–22079. [PubMed] [Google Scholar]
  19. Kellenberger-Gujer G., Podhajska A. J., Caro L. A cold sensitive dnaA mutant of E. coli which overinitiates chromosome replication at low temperature. Mol Gen Genet. 1978 Jun 1;162(1):9–16. doi: 10.1007/BF00333845. [DOI] [PubMed] [Google Scholar]
  20. Kimura T., Asai T., Imai M., Takanami M. Methylation strongly enhances DNA bending in the replication origin region of the Escherichia coli chromosome. Mol Gen Genet. 1989 Oct;219(1-2):69–74. doi: 10.1007/BF00261159. [DOI] [PubMed] [Google Scholar]
  21. Murakami Y., Ohmori H., Yura T., Nagata T. Requirement of the Escherichia coli dnaA gene function for ori-2-dependent mini-F plasmid replication. J Bacteriol. 1987 Apr;169(4):1724–1730. doi: 10.1128/jb.169.4.1724-1730.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Ogawa T., Baker T. A., van der Ende A., Kornberg A. Initiation of enzymatic replication at the origin of the Escherichia coli chromosome: contributions of RNA polymerase and primase. Proc Natl Acad Sci U S A. 1985 Jun;82(11):3562–3566. doi: 10.1073/pnas.82.11.3562. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Owen-Hughes T. A., Pavitt G. D., Santos D. S., Sidebotham J. M., Hulton C. S., Hinton J. C., Higgins C. F. The chromatin-associated protein H-NS interacts with curved DNA to influence DNA topology and gene expression. Cell. 1992 Oct 16;71(2):255–265. doi: 10.1016/0092-8674(92)90354-f. [DOI] [PubMed] [Google Scholar]
  24. Pettijohn D. E. Histone-like proteins and bacterial chromosome structure. J Biol Chem. 1988 Sep 15;263(26):12793–12796. [PubMed] [Google Scholar]
  25. Polaczek P. Bending of the origin of replication of E. coli by binding of IHF at a specific site. New Biol. 1990 Mar;2(3):265–271. [PubMed] [Google Scholar]
  26. Roth A., Urmoneit B., Messer W. Functions of histone-like proteins in the initiation of DNA replication at oriC of Escherichia coli. Biochimie. 1994;76(10-11):917–923. doi: 10.1016/0300-9084(94)90016-7. [DOI] [PubMed] [Google Scholar]
  27. Skarstad K., Baker T. A., Kornberg A. Strand separation required for initiation of replication at the chromosomal origin of E.coli is facilitated by a distant RNA--DNA hybrid. EMBO J. 1990 Jul;9(7):2341–2348. doi: 10.1002/j.1460-2075.1990.tb07406.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. Spurio R., Dürrenberger M., Falconi M., La Teana A., Pon C. L., Gualerzi C. O. Lethal overproduction of the Escherichia coli nucleoid protein H-NS: ultramicroscopic and molecular autopsy. Mol Gen Genet. 1992 Jan;231(2):201–211. doi: 10.1007/BF00279792. [DOI] [PubMed] [Google Scholar]
  29. Ussery D. W., Hinton J. C., Jordi B. J., Granum P. E., Seirafi A., Stephen R. J., Tupper A. E., Berridge G., Sidebotham J. M., Higgins C. F. The chromatin-associated protein H-NS. Biochimie. 1994;76(10-11):968–980. doi: 10.1016/0300-9084(94)90022-1. [DOI] [PubMed] [Google Scholar]
  30. Yamada H., Muramatsu S., Mizuno T. An Escherichia coli protein that preferentially binds to sharply curved DNA. J Biochem. 1990 Sep;108(3):420–425. doi: 10.1093/oxfordjournals.jbchem.a123216. [DOI] [PubMed] [Google Scholar]
  31. Yamada H., Yoshida T., Tanaka K., Sasakawa C., Mizuno T. Molecular analysis of the Escherichia coli hns gene encoding a DNA-binding protein, which preferentially recognizes curved DNA sequences. Mol Gen Genet. 1991 Nov;230(1-2):332–336. doi: 10.1007/BF00290685. [DOI] [PubMed] [Google Scholar]
  32. Yasuzawa K., Hayashi N., Goshima N., Kohno K., Imamoto F., Kano Y. Histone-like proteins are required for cell growth and constraint of supercoils in DNA. Gene. 1992 Dec 1;122(1):9–15. doi: 10.1016/0378-1119(92)90026-l. [DOI] [PubMed] [Google Scholar]
  33. Yoshida T., Ueguchi C., Yamada H., Mizuno T. Function of the Escherichia coli nucleoid protein, H-NS: molecular analysis of a subset of proteins whose expression is enhanced in a hns deletion mutant. Mol Gen Genet. 1993 Feb;237(1-2):113–122. doi: 10.1007/BF00282791. [DOI] [PubMed] [Google Scholar]
  34. van der Ende A., Baker T. A., Ogawa T., Kornberg A. Initiation of enzymatic replication at the origin of the Escherichia coli chromosome: primase as the sole priming enzyme. Proc Natl Acad Sci U S A. 1985 Jun;82(12):3954–3958. doi: 10.1073/pnas.82.12.3954. [DOI] [PMC free article] [PubMed] [Google Scholar]

Articles from Journal of Bacteriology are provided here courtesy of American Society for Microbiology (ASM)

RESOURCES