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. 1986 Mar;165(3):763–770. doi: 10.1128/jb.165.3.763-770.1986

Defect in expression of heat-shock proteins at high temperature in xthA mutants.

K H Paek, G C Walker
PMCID: PMC214494  PMID: 3512522

Abstract

Escherichia coli mutants lacking exonuclease III (xthA) are defective in the induction of heat-shock proteins upon severe heat-shock treatment (upshift from 30 to 50 degrees C) but not mild heat-shock treatment (upshift from 30 to 42 degrees C). We show that this defect is due to the xthA mutation by complementation. Furthermore, increasing the gene dosage of xthA+ prolongs the synthesis of heat shock proteins seen after a shift to 42 degrees C. Increasing the gene dosage of htpR+ partially suppresses the defect of xthA mutants in the synthesis of heat-shock proteins at 50 degrees C. When an xthA strain was incubated at 42 degrees C before a shift to 50 degrees C, it was then able to carry out the synthesis of heat-shock proteins at 50 degrees C.

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Selected References

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

  1. Bloch P. L., Phillips T. A., Neidhardt F. C. Protein identifications of O'Farrell two-dimensional gels: locations of 81 Escherichia coli proteins. J Bacteriol. 1980 Mar;141(3):1409–1420. doi: 10.1128/jb.141.3.1409-1420.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Chang A. C., Cohen S. N. Construction and characterization of amplifiable multicopy DNA cloning vehicles derived from the P15A cryptic miniplasmid. J Bacteriol. 1978 Jun;134(3):1141–1156. doi: 10.1128/jb.134.3.1141-1156.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Christman M. F., Morgan R. W., Jacobson F. S., Ames B. N. Positive control of a regulon for defenses against oxidative stress and some heat-shock proteins in Salmonella typhimurium. Cell. 1985 Jul;41(3):753–762. doi: 10.1016/s0092-8674(85)80056-8. [DOI] [PubMed] [Google Scholar]
  4. Cohen S. N., Chang A. C. Revised interpretation of the origin of the pSC101 plasmid. J Bacteriol. 1977 Nov;132(2):734–737. doi: 10.1128/jb.132.2.734-737.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Cooper S., Ruettinger T. A temperature sensitive nonsense mutation affecting the synthesis of a major protein of Escherichia coli K12. Mol Gen Genet. 1975 Aug 5;139(2):167–176. doi: 10.1007/BF00264696. [DOI] [PubMed] [Google Scholar]
  6. Demple B., Halbrook J., Linn S. Escherichia coli xth mutants are hypersensitive to hydrogen peroxide. J Bacteriol. 1983 Feb;153(2):1079–1082. doi: 10.1128/jb.153.2.1079-1082.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Demple B., Linn S. 5,6-Saturated thymine lesions in DNA: production by ultraviolet light or hydrogen peroxide. Nucleic Acids Res. 1982 Jun 25;10(12):3781–3789. doi: 10.1093/nar/10.12.3781. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Elledge S. J., Walker G. C. Proteins required for ultraviolet light and chemical mutagenesis. Identification of the products of the umuC locus of Escherichia coli. J Mol Biol. 1983 Feb 25;164(2):175–192. doi: 10.1016/0022-2836(83)90074-8. [DOI] [PubMed] [Google Scholar]
  9. Goff S. A., Casson L. P., Goldberg A. L. Heat shock regulatory gene htpR influences rates of protein degradation and expression of the lon gene in Escherichia coli. Proc Natl Acad Sci U S A. 1984 Nov;81(21):6647–6651. doi: 10.1073/pnas.81.21.6647. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Grossman A. D., Erickson J. W., Gross C. A. The htpR gene product of E. coli is a sigma factor for heat-shock promoters. Cell. 1984 Sep;38(2):383–390. doi: 10.1016/0092-8674(84)90493-8. [DOI] [PubMed] [Google Scholar]
  11. Krueger J. H., Walker G. C. groEL and dnaK genes of Escherichia coli are induced by UV irradiation and nalidixic acid in an htpR+-dependent fashion. Proc Natl Acad Sci U S A. 1984 Mar;81(5):1499–1503. doi: 10.1073/pnas.81.5.1499. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. 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]
  13. Lee P. C., Bochner B. R., Ames B. N. AppppA, heat-shock stress, and cell oxidation. Proc Natl Acad Sci U S A. 1983 Dec;80(24):7496–7500. doi: 10.1073/pnas.80.24.7496. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Mandel M., Higa A. Calcium-dependent bacteriophage DNA infection. J Mol Biol. 1970 Oct 14;53(1):159–162. doi: 10.1016/0022-2836(70)90051-3. [DOI] [PubMed] [Google Scholar]
  15. Milcarek C., Weiss B. Mutants of Escherichia coli with altered deoxyribonucleases. I. Isolation and characterization of mutants for exonuclease 3. J Mol Biol. 1972 Jul 21;68(2):303–318. doi: 10.1016/0022-2836(72)90215-x. [DOI] [PubMed] [Google Scholar]
  16. Neidhardt F. C., VanBogelen R. A., Lau E. T. Molecular cloning and expression of a gene that controls the high-temperature regulon of Escherichia coli. J Bacteriol. 1983 Feb;153(2):597–603. doi: 10.1128/jb.153.2.597-603.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Neidhardt F. C., VanBogelen R. A., Vaughn V. The genetics and regulation of heat-shock proteins. Annu Rev Genet. 1984;18:295–329. doi: 10.1146/annurev.ge.18.120184.001455. [DOI] [PubMed] [Google Scholar]
  18. 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]
  19. Rogers S. G., Weiss B. Cloning of the exonuclease III gene of Escherichia coli. Gene. 1980 Nov;11(3-4):187–195. doi: 10.1016/0378-1119(80)90059-1. [DOI] [PubMed] [Google Scholar]
  20. Rogers S. G., Weiss B. Exonuclease III of Escherichia coli K-12, an AP endonuclease. Methods Enzymol. 1980;65(1):201–211. doi: 10.1016/s0076-6879(80)65028-9. [DOI] [PubMed] [Google Scholar]
  21. Sancar A., Wharton R. P., Seltzer S., Kacinski B. M., Clarke N. D., Rupp W. D. Identification of the uvrA gene product. J Mol Biol. 1981 May 5;148(1):45–62. doi: 10.1016/0022-2836(81)90234-5. [DOI] [PubMed] [Google Scholar]
  22. Tilly K., McKittrick N., Zylicz M., Georgopoulos C. The dnaK protein modulates the heat-shock response of Escherichia coli. Cell. 1983 Sep;34(2):641–646. doi: 10.1016/0092-8674(83)90396-3. [DOI] [PubMed] [Google Scholar]
  23. Tobe T., Ito K., Yura T. Isolation and physical mapping of temperature-sensitive mutants defective in heat-shock induction of proteins in Escherichia coli. Mol Gen Genet. 1984;195(1-2):10–16. doi: 10.1007/BF00332716. [DOI] [PubMed] [Google Scholar]
  24. Walker G. C. Mutagenesis and inducible responses to deoxyribonucleic acid damage in Escherichia coli. Microbiol Rev. 1984 Mar;48(1):60–93. doi: 10.1128/mr.48.1.60-93.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. Yamamori T., Ito K., Nakamura Y., Yura T. Transient regulation of protein synthesis in Escherichia coli upon shift-up of growth temperature. J Bacteriol. 1978 Jun;134(3):1133–1140. doi: 10.1128/jb.134.3.1133-1140.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]

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