Diffuse adherence, ST-I enterotoxin and CFA/IV colonization factor are encoded by the same plasmid in the Escherichia coli O29:H21 strain

Diffuse adherence, ST-I enterotoxin and CFA/IV colonization factor are encoded by the same plasmid in the Escherichia coli O29:H21 strain

Author Silva, R. M. Google Scholar
Giraldi, Regina Autor UNIFESP Google Scholar
Keller, Rogeria Autor UNIFESP Google Scholar
Campos, L. C. Google Scholar
Guth, Beatriz Ernestina Cabilio Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract Escherichia coli O29:H21 is a human enterotoxigenic serotype that produces heat-stable (ST-I) enterotoxin, adheres diffusely to HeLa cells, and presents colonization factor antigen IV (CFA/IV) composed of CS5CS6 surface antigens. In one strain studied the genes for diffuse adherence and CFA/IV (CS5CS6) production were found to be present in the same plasmid encoding ST-I. The virulence plasmid (Ent) presented two unrelated basic replicons homologous to repFIC and repW. Gene(s) encoding diffuse adherence did not share homology with the probe for F1845 fimbrial adhesin which is responsible for this phenotype in other E. coli strains. Ent plasmids containing genes for diffuse adherence have not been described previously.
Keywords Escherichia coli diffuse adherence
CFA/IV colonization factor
ST-I enterotoxin
RepFIC
RepW
Language English
Date 1996-08-01
Published in Brazilian Journal Of Medical And Biological Research. Sao Paulo: Assoc Bras Divulg Cientifica, v. 29, n. 8, p. 969-976, 1996.
ISSN 0100-879X (Sherpa/Romeo, impact factor)
Publisher Assoc Bras Divulg Cientifica
Extent 969-976
Access rights Closed access
Type Article
Web of Science ID WOS:A1996VD70600006
URI http://repositorio.unifesp.br/11600/43113

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