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. 1990 Apr;58(4):874–878. doi: 10.1128/iai.58.4.874-878.1990

A rns-like regulatory gene for colonization factor antigen I (CFA/I) that controls expression of CFA/I pilin.

J Caron 1, J R Scott 1
PMCID: PMC258554  PMID: 1969396

Abstract

Colonization factor antigens (CFA) are needed for adherence of human enterotoxigenic Escherichia coli (ETEC) strains to their hosts. The CFA/II antigens, CS1 and CS2, which are found in some ETEC strains, require the plasmid-encoded gene rns for expression (J. Caron, L. M. Coffield, and J. R. Scott, Proc. Natl. Acad. Sci. USA 86:963-967, 1989). Other ETEC strains express CFA/I, whose synthesis and assembly require genes on two unlinked regions (regions 1 and 2) of a plasmid (G. A. Willshaw, H. R. Smith, and B. Rowe, FEMS Microbiol. Lett. 16:101-106, 1983). We report that CFA/I region 2 DNA can substitute for rns to cause expression of CS1 and CS2. The cfaR gene in region 2 is defined by a mutation abolishing both expression of CFA/I and complementation of a rns mutant for expression of CS1 or CS2. In a strain containing only region 1, complementation for expression of CFA/I by a plasmid containing rns+ is inefficient but is adequate to cause hemagglutination by the CFA/I adhesin.

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Selected References

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  1. Anderson D. G., Moseley S. L. Escherichia coli F41 adhesin: genetic organization, nucleotide sequence, and homology with the K88 determinant. J Bacteriol. 1988 Oct;170(10):4890–4896. doi: 10.1128/jb.170.10.4890-4896.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Black R. E., Brown K. H., Becker S., Alim A. R., Huq I. Longitudinal studies of infectious diseases and physical growth of children in rural Bangladesh. II. Incidence of diarrhea and association with known pathogens. Am J Epidemiol. 1982 Mar;115(3):315–324. doi: 10.1093/oxfordjournals.aje.a113308. [DOI] [PubMed] [Google Scholar]
  3. Caron J., Coffield L. M., Scott J. R. A plasmid-encoded regulatory gene, rns, required for expression of the CS1 and CS2 adhesins of enterotoxigenic Escherichia coli. Proc Natl Acad Sci U S A. 1989 Feb;86(3):963–967. doi: 10.1073/pnas.86.3.963. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Coleman R. D., Dunst R. W., Hill C. W. A double base change in alternate base pairs induced by ultraviolet irradiation in a glycine transfer RNA gene. Mol Gen Genet. 1980 Jan;177(2):213–222. doi: 10.1007/BF00267432. [DOI] [PubMed] [Google Scholar]
  5. Cornelis G., Sluiters C., de Rouvroit C. L., Michiels T. Homology between virF, the transcriptional activator of the Yersinia virulence regulon, and AraC, the Escherichia coli arabinose operon regulator. J Bacteriol. 1989 Jan;171(1):254–262. doi: 10.1128/jb.171.1.254-262.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Evans D. G., Evans D. J., Jr New surface-associated heat-labile colonization factor antigen (CFA/II) produced by enterotoxigenic Escherichia coli of serogroups O6 and O8. Infect Immun. 1978 Aug;21(2):638–647. doi: 10.1128/iai.21.2.638-647.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Evans D. G., Evans D. J., Jr, Tjoa W. Hemagglutination of human group A erythrocytes by enterotoxigenic Escherichia coli isolated from adults with diarrhea: correlation with colonization factor. Infect Immun. 1977 Nov;18(2):330–337. doi: 10.1128/iai.18.2.330-337.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Evans D. G., Silver R. P., Evans D. J., Jr, Chase D. G., Gorbach S. L. Plasmid-controlled colonization factor associated with virulence in Esherichia coli enterotoxigenic for humans. Infect Immun. 1975 Sep;12(3):656–667. doi: 10.1128/iai.12.3.656-667.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Feinberg A. P., Vogelstein B. A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity. Anal Biochem. 1983 Jul 1;132(1):6–13. doi: 10.1016/0003-2697(83)90418-9. [DOI] [PubMed] [Google Scholar]
  10. Kato J., Ito K., Nakamura A., Watanabe H. Cloning of regions required for contact hemolysis and entry into LLC-MK2 cells from Shigella sonnei form I plasmid: virF is a positive regulator gene for these phenotypes. Infect Immun. 1989 May;57(5):1391–1398. doi: 10.1128/iai.57.5.1391-1398.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Maurer L., Orndorff P. E. Identification and characterization of genes determining receptor binding and pilus length of Escherichia coli type 1 pili. J Bacteriol. 1987 Feb;169(2):640–645. doi: 10.1128/jb.169.2.640-645.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Merson M. H., Morris G. K., Sack D. A., Wells J. G., Feeley J. C., Sack R. B., Creech W. B., Kapikian A. Z., Gangarosa E. J. Travelers' diarrhea in Mexico. A prospective study of physicians and family members attending a congress. N Engl J Med. 1976 Jun 10;294(24):1299–1305. doi: 10.1056/NEJM197606102942401. [DOI] [PubMed] [Google Scholar]
  13. Messing J., Crea R., Seeburg P. H. A system for shotgun DNA sequencing. Nucleic Acids Res. 1981 Jan 24;9(2):309–321. doi: 10.1093/nar/9.2.309. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Mooi F. R., de Graaf F. K. Molecular biology of fimbriae of enterotoxigenic Escherichia coli. Curr Top Microbiol Immunol. 1985;118:119–138. doi: 10.1007/978-3-642-70586-1_7. [DOI] [PubMed] [Google Scholar]
  15. Sakai T., Sasakawa C., Yoshikawa M. Expression of four virulence antigens of Shigella flexneri is positively regulated at the transcriptional level by the 30 kiloDalton virF protein. Mol Microbiol. 1988 Sep;2(5):589–597. doi: 10.1111/j.1365-2958.1988.tb00067.x. [DOI] [PubMed] [Google Scholar]
  16. Scott J. R. A turbid plaque-forming mutant of phage P1 that cannot lysogenize Escherichia coli. Virology. 1974 Dec;62(2):344–349. doi: 10.1016/0042-6822(74)90397-3. [DOI] [PubMed] [Google Scholar]
  17. Smith H. R., Willshaw G. A., Rowe B. Mapping of a plasmid, coding for colonization, factor antigen I and heat-stable enterotoxin production, isolated from an enterotoxigenic strain of Escherichia coli. J Bacteriol. 1982 Jan;149(1):264–275. doi: 10.1128/jb.149.1.264-275.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Smith H. W., Linggood M. A. Observations on the pathogenic properties of the K88, Hly and Ent plasmids of Escherichia coli with particular reference to porcine diarrhoea. J Med Microbiol. 1971 Nov;4(4):467–485. doi: 10.1099/00222615-4-4-467. [DOI] [PubMed] [Google Scholar]
  19. Willshaw G. A., Smith H. R., McConnell M. M., Rowe B. Expression of cloned plasmid regions encoding colonization factor antigen I (CFA/I) in Escherichia coli. Plasmid. 1985 Jan;13(1):8–16. doi: 10.1016/0147-619x(85)90051-4. [DOI] [PubMed] [Google Scholar]

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