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Journal of Bacteriology, June 2005, p. 3873-3877, Vol. 187, No. 11
0021-9193/05/$08.00+0     doi:10.1128/JB.187.11.3873-3877.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Osmotic Regulation of the Escherichia coli bdm (Biofilm-Dependent Modulation) Gene by the RcsCDB His-Asp Phosphorelay

Anne Francez-Charlot, Marie-Pierre Castanié-Cornet, Claude Gutierrez, and Kaymeuang Cam*

Laboratoire de Microbiologie et de Génétique Moléculaire, Centre National de la Recherche Scientifique, 118 Route de Narbonne, 31062 Toulouse, France

Received 30 September 2004/ Accepted 22 February 2005

The RcsCDB His-Asp phosphorelay is shown to positively regulate the bdm (biofilm-dependent modulation) and sra (stationary-phase-induced ribosome-associated protein) genes in Escherichia coli. The regulation is direct and requires an RcsB box next to the bdm –35 element. In addition, bdm is shown to be activated by osmotic shock in an Rcs-dependent way.

* Corresponding author. Mailing address: Laboratoire de Microbiologie et de Génétique Moléculaire, Centre National de la Recherche Scientifique, 118 Route de Narbonne, 31062 Toulouse, France. Phone: (33) 561335963. Fax: (33) 561335886. E-mail: cam{at}ibcg.biotoul.fr.

Journal of Bacteriology, June 2005, p. 3873-3877, Vol. 187, No. 11
0021-9193/05/$08.00+0     doi:10.1128/JB.187.11.3873-3877.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



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