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Infection and Immunity, October 2002, p. 5882-5886, Vol. 70, No. 10
0019-9567/02/$04.00+0     DOI: 10.1128/IAI.70.10.5882-5886.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Expression and Characterization of Flagella in Nonmotile Enteroinvasive Escherichia coli Isolated from Diarrhea Cases

Agda Andrade,1 Jorge A. Girón,2* Juliana M. K. Amhaz,1 Luiz R. Trabulsi,3 and Marina B. Martinez1

Departamento de Analises Clinicas e Toxicologicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo,1 Laboratorio de Microbiologia, Instituto Butantan, São Paulo, Brazil,3 Instituto de Ciencias, Benemérita Universidad Autonoma de Puebla, Puebla, Mexico2

Received 8 April 2002/ Returned for modification 28 May 2002/ Accepted 9 July 2002

We report that enteroinvasive Escherichia coli (EIEC) serotypes considered to be nonmotile produce an unusually large (77 kDa) flagellin that is assembled into functional flagellum filaments that allow the bacteria to swim in modified motility agar. The EIEC flagellin showed N-terminal identity to most common enterobacterial flagellins, especially those of the E. coli H7 serotype. These data are important in terms of the epidemiology, evolution, and biology of EIEC.

* Corresponding author. Mailing address: Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edificio 76 Complejo de Ciencias, Ciudad Universitaria, CP 72000 Puebla, Mexico. Phone: (52-222) 233-2010. Fax: (52-222) 244-4518. E-mail: jagiron{at}yahoo.com.

Editor: B. B. Finlay

Infection and Immunity, October 2002, p. 5882-5886, Vol. 70, No. 10
0019-9567/02/$04.00+0     DOI: 10.1128/IAI.70.10.5882-5886.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Lan, R., Alles, M. C., Donohoe, K., Martinez, M. B., Reeves, P. R. (2004). Molecular Evolutionary Relationships of Enteroinvasive Escherichia coli and Shigella spp.. Infect. Immun. 72: 5080-5088 [Abstract] [Full Text]  


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