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Journal of Bacteriology, April 2002, p. 2305-2309, Vol. 184, No. 8
0021-9193/02/$04.00+0     DOI: 10.1128/JB.184.8.2305-2309.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Type 4 Pilus Biogenesis and Type II-Mediated Protein Secretion by Vibrio cholerae Occur Independently of the TonB-Facilitated Proton Motive Force

Niranjan Bose,1 Shelley M. Payne,2 and Ronald K. Taylor1*

Department of Microbiology and Immunology, Dartmouth Medical School, Hanover, New Hampshire 03755,1 Section of Molecular Genetics and Microbiology, The University of Texas at Austin, Austin, Texas 787122

Received 17 August 2001/ Accepted 25 January 2002

In Vibrio cholerae, elaboration of toxin-coregulated pilus and protein secretion by the extracellular protein secretion apparatus occurred in the absence of both TonB systems. In contrast, the cognate putative ATPases were required for each process and could not substitute for each other.

* Corresponding author. Mailing address: Department of Microbiology and Immunology, HB7550, Dartmouth Medical School, Hanover, NH 03755. Phone: (603) 650-1632. Fax: (603) 650-1318. E-mail: ronald.k.taylor{at}dartmouth.edu.

Journal of Bacteriology, April 2002, p. 2305-2309, Vol. 184, No. 8
0021-9193/02/$04.00+0     DOI: 10.1128/JB.184.8.2305-2309.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



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