Skip to main content
PMC home page
Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1986 Jul;83(14):5057–5061. doi: 10.1073/pnas.83.14.5057

Escherichia coli mutS-encoded protein binds to mismatched DNA base pairs.

S S Su, P Modrich
PMCID: PMC323889  PMID: 3014530

Abstract

The Escherichia coli mutS gene product is involved in mismatch correction in this organism. We have purified a biologically active form of the 97,000 Mr protein to near homogeneity from an overproducing strain. Enzymatic and chemical protection ("footprinting") experiments have demonstrated that mutS-encoded protein specifically binds to DNA regions containing a single base-pair mismatch. The protein displayed variable affinity for the limited set of mismatches tested (G-T greater than G-A approximately equal to A-C greater than T-C).

Full text

PDF
5057

Images in this article

5058Image
on p.5058
5058Image
on p.5058
5059Image
on p.5059
5060Image
on p.5060

Selected References

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

  1. Brown T., Kennard O., Kneale G., Rabinovich D. High-resolution structure of a DNA helix containing mismatched base pairs. Nature. 1985 Jun 13;315(6020):604–606. doi: 10.1038/315604a0. [DOI] [PubMed] [Google Scholar]
  2. Cheng S. C., Kim R., King K., Kim S. H., Modrich P. Isolation of gram quantities of EcoRI restriction and modification enzymes from an overproducing strain. J Biol Chem. 1984 Sep 25;259(18):11571–11575. [PubMed] [Google Scholar]
  3. Cheng S. C., Modrich P. Positive-selection cloning vehicle useful for overproduction of hybrid proteins. J Bacteriol. 1983 May;154(2):1005–1008. doi: 10.1128/jb.154.2.1005-1008.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Claverys J. P., Méjean V., Gasc A. M., Sicard A. M. Mismatch repair in Streptococcus pneumoniae: relationship between base mismatches and transformation efficiencies. Proc Natl Acad Sci U S A. 1983 Oct;80(19):5956–5960. doi: 10.1073/pnas.80.19.5956. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Dohet C., Wagner R., Radman M. Repair of defined single base-pair mismatches in Escherichia coli. Proc Natl Acad Sci U S A. 1985 Jan;82(2):503–505. doi: 10.1073/pnas.82.2.503. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Galas D. J., Schmitz A. DNAse footprinting: a simple method for the detection of protein-DNA binding specificity. Nucleic Acids Res. 1978 Sep;5(9):3157–3170. doi: 10.1093/nar/5.9.3157. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Glickman B. W., Radman M. Escherichia coli mutator mutants deficient in methylation-instructed DNA mismatch correction. Proc Natl Acad Sci U S A. 1980 Feb;77(2):1063–1067. doi: 10.1073/pnas.77.2.1063. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Hertzberg R. P., Dervan P. B. Cleavage of DNA with methidiumpropyl-EDTA-iron(II): reaction conditions and product analyses. Biochemistry. 1984 Aug 14;23(17):3934–3945. doi: 10.1021/bi00312a022. [DOI] [PubMed] [Google Scholar]
  9. Jorgensen R. A., Rothstein S. J., Reznikoff W. S. A restriction enzyme cleavage map of Tn5 and location of a region encoding neomycin resistance. Mol Gen Genet. 1979;177(1):65–72. doi: 10.1007/BF00267254. [DOI] [PubMed] [Google Scholar]
  10. Kramer B., Kramer W., Fritz H. J. Different base/base mismatches are corrected with different efficiencies by the methyl-directed DNA mismatch-repair system of E. coli. Cell. 1984 Oct;38(3):879–887. doi: 10.1016/0092-8674(84)90283-6. [DOI] [PubMed] [Google Scholar]
  11. Kumura K., Sekiguchi M. Identification of the uvrD gene product of Escherichia coli as DNA helicase II and its induction by DNA-damaging agents. J Biol Chem. 1984 Feb 10;259(3):1560–1565. [PubMed] [Google Scholar]
  12. Lacks S. A., Dunn J. J., Greenberg B. Identification of base mismatches recognized by the heteroduplex-DNA-repair system of Streptococcus pneumoniae. Cell. 1982 Dec;31(2 Pt 1):327–336. doi: 10.1016/0092-8674(82)90126-x. [DOI] [PubMed] [Google Scholar]
  13. 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]
  14. Lu A. L., Clark S., Modrich P. Methyl-directed repair of DNA base-pair mismatches in vitro. Proc Natl Acad Sci U S A. 1983 Aug;80(15):4639–4643. doi: 10.1073/pnas.80.15.4639. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Lu A. L., Welsh K., Clark S., Su S. S., Modrich P. Repair of DNA base-pair mismatches in extracts of Escherichia coli. Cold Spring Harb Symp Quant Biol. 1984;49:589–596. doi: 10.1101/sqb.1984.049.01.066. [DOI] [PubMed] [Google Scholar]
  16. Maxam A. M., Gilbert W. Sequencing end-labeled DNA with base-specific chemical cleavages. Methods Enzymol. 1980;65(1):499–560. doi: 10.1016/s0076-6879(80)65059-9. [DOI] [PubMed] [Google Scholar]
  17. Nevers P., Spatz H. C. Escherichia coli mutants uvr D and uvr E deficient in gene conversion of lambda-heteroduplexes. Mol Gen Genet. 1975 Aug 27;139(3):233–243. doi: 10.1007/BF00268974. [DOI] [PubMed] [Google Scholar]
  18. Pang P. P., Lundberg A. S., Walker G. C. Identification and characterization of the mutL and mutS gene products of Salmonella typhimurium LT2. J Bacteriol. 1985 Sep;163(3):1007–1015. doi: 10.1128/jb.163.3.1007-1015.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Patel D. J., Kozlowski S. A., Ikuta S., Itakura K. Dynamics of DNA duplexes containing internal G.T, G.A, A.C, and T.C pairs: hydrogen exchange at and adjacent to mismatch sites. Fed Proc. 1984 Aug;43(11):2663–2670. [PubMed] [Google Scholar]
  20. Pirrotta V., Bickle T. A. General purification schemes for restriction endonucleases. Methods Enzymol. 1980;65(1):89–95. doi: 10.1016/s0076-6879(80)65013-7. [DOI] [PubMed] [Google Scholar]
  21. Pukkila P. J., Peterson J., Herman G., Modrich P., Meselson M. Effects of high levels of DNA adenine methylation on methyl-directed mismatch repair in Escherichia coli. Genetics. 1983 Aug;104(4):571–582. doi: 10.1093/genetics/104.4.571. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. SAITO H., MIURA K. I. PREPARATION OF TRANSFORMING DEOXYRIBONUCLEIC ACID BY PHENOL TREATMENT. Biochim Biophys Acta. 1963 Aug 20;72:619–629. [PubMed] [Google Scholar]
  23. Sancar A., Rupp W. D. Cloning of uvrA, lexC and ssb genes of Escherichia coli. Biochem Biophys Res Commun. 1979 Sep 12;90(1):123–129. doi: 10.1016/0006-291x(79)91598-5. [DOI] [PubMed] [Google Scholar]
  24. 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]
  25. Southern E. M. Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975 Nov 5;98(3):503–517. doi: 10.1016/s0022-2836(75)80083-0. [DOI] [PubMed] [Google Scholar]
  26. Wagner R., Jr, Meselson M. Repair tracts in mismatched DNA heteroduplexes. Proc Natl Acad Sci U S A. 1976 Nov;73(11):4135–4139. doi: 10.1073/pnas.73.11.4135. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. White R. L., Fox M. S. On the molecular basis of high negative interference. Proc Natl Acad Sci U S A. 1974 Apr;71(4):1544–1548. doi: 10.1073/pnas.71.4.1544. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. Winberg G., Hammarskjöld M. L. Isolation of DNA from agarose gels using DEAE-paper. Application to restriction site mapping of adenovirus type 16 DNA. Nucleic Acids Res. 1980 Jan 25;8(2):253–264. doi: 10.1093/nar/8.2.253. [DOI] [PMC free article] [PubMed] [Google Scholar]

Articles from Proceedings of the National Academy of Sciences of the United States of America are provided here courtesy of National Academy of Sciences

RESOURCES