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- Publisher
- Oxford University Press
- Copyright
- © 1991 Federation of European Microbiological Societies
- ISSN
- 0378-1097
- eISSN
- 1574-6968
- DOI
- 10.1111/j.1574-6968.1991.tb04487.x
- Publisher site
- See Article on Publisher Site
Abstract
Summary A DNA fragment that can functionally substitute for cfaD, the positive regulatory gene involved in expression of CFA/I fimbriae, has recently been cloned from an Escherichia coli strain of serotype O167:H5 that determination showed that Nucleotide sequence determination showed that the fragment contained a gene, csvR (Coli Surface Virulence factor Regulator) homologous to the cfaD gene, which encoded for a protein of 301 amino acid residues. The csvR gene was found to be located between two different insertion sequences. Comparison of the amino acid sequence of the CsvR and CfaD proteins showed that CsvR is 34 amino acid residues longer at the C-terminus and, in the sequence, it also contains an insertion of two amino acid residues. The similarity between CfaD and Rns, the positive regulator of CS1 and CS2 expression, is much higher (97%) than between CsvR and CfaD (87%). This is reflected by the fact that the level of expression of CFA/I fimbriae induced by CsvR is not as high as when expression is induced by CfaD or Rns. Regulatory sequence, Escherichia coli, Fimbriae, Nucleotide sequence, Enterotoxigenic REFERENCES [1] Gaastra W. de Graaf F.K. ( 1982 ) Microbiol. Rev. , 46 , 129 – 161 . PubMed [2] McConnell M.M. ( 1991 ) In Proceedings of FEMS Symposium on molecular pathogenesis of gastro-intestinal infections in press. Google Scholar Google Preview OpenURL Placeholder Text WorldCat COPAC [3] Hibberd M.L. McConnell M.M. Willshaw G.A. Smith H.R. Rowe B. ( 1991 ) J. Gen. Microbiol. , 137 , 1963 – 1970 . Crossref Search ADS PubMed [4] Caron J. Coffield L.M. Scott J.R. ( 1989 ) 2nd Ed., 86 , In Proc. Natl. Acad. Sci. U.S.A. , pp 963 – 967 . Google Scholar Google Preview OpenURL Placeholder Text WorldCat COPAC [5] Savelkoul P.H.M. Willshaw G.A. McConnell M.M. Smith H.R. Hamers A.M. van der Zeijst B.A.M. Gaastra W. ( 1990 ) Microbial Pathogenesis , 8 , 91 – 99 . Crossref Search ADS PubMed [6] Willshaw G.A. McConnell M.M. Smith H.R. Rowe B. ( 1990 ) FEMS Microbiol. Lett. , 68 , 255 – 260 . [7] Caron J. Scott J.R. ( 1990 ) Infect. Immun. , 58 , 874 – 878 . PubMed [8] Willshaw G.A. Smith H.R. McConnell M.M. Rowe B. ( 1991 ) FEMS Microbiol. Lett. , 82 , 125 – 130 . Crossref Search ADS [9] Thomas L.V. Rowe B. McConnell M.M. ( 1987 ) Infect. Immun. , 55 , 1929 – 1931 . PubMed [10] Schneider K. Beck C.F. ( 1986 ) Gene , 42 , 37 – 48 . Crossref Search ADS PubMed [11] Tartof K.D. Hobbs C.A. ( 1987 ) Bethesda Res. Lab. Focus , 9 , 12 . [12] Hamers A.M. Pel H.J. Willshaw G.A. Kusters J.G. van der Zeijst B.A.M. Gaastra W. ( 1989 ) Microb. Pathogenesis , 6 , 297 – 309 . Crossref Search ADS [13] Jordi B.J.A.M. van Vliet A.H.M. Willshaw G.A. van der Zeijst B.A.M. Gaastra W. ( 1991 ) FEMS Microbiol. Lett. , 80 , 265 – 270 . Crossref Search ADS [14] Nuijten P.J.M. van Asten F.J.A.M. Gaastra W. van der Zeijst B.A.M. ( 1990 ) J. Biol. Chem. , 265 , 17798 – 17804 . PubMed [15] Sanger F. Nicklen S. Coulson A.R. ( 1977 ) 2nd Ed., 74 , In Proc. Natl. Acad. Sci. U.S.A. , pp 5463 – 5467 . Google Scholar Google Preview OpenURL Placeholder Text WorldCat COPAC [16] Perez-Casal J. Swartley J.S. Scott J.R. ( 1990 ) Infect. Immun. , 58 , 3594 – 3600 . PubMed [17] Johnson J.R. ( 1991 ) Clin. Microbiol. Rev. , 4 , 80 – 128 . Crossref Search ADS PubMed [18] Heuzenroeder M.W. Neal B.L. Thomas C.J. Halter R. Manning P.A. ( 1989 ) Mol. Microbiol. , 3 , 303 – 310 . Crossref Search ADS PubMed [19] Knutton S. McConnell M.M. Rowe B. McNeish A.S. ( 1989 ) Infect. Immun. , 57 , 3364 – 3371 . PubMed This content is only available as a PDF. © 1991 Federation of European Microbiological Societies
Journal
FEMS Microbiology Letters – Oxford University Press
Published: Oct 1, 1991