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Journal of Bacteriology, November 2005, p. 7840-7844, Vol. 187, No. 22
0021-9193/05/$08.00+0     doi:10.1128/JB.187.22.7840-7844.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Polar Localization of a Soluble Methyl-Accepting Protein of Pseudomonas aeruginosa

Sonia L. Bardy and Janine R. Maddock*

Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, Michigan 48109

Received 13 July 2005/ Accepted 31 August 2005

A soluble methyl-accepting chemotaxis protein (MCP) of Pseudomonas aeruginosa, McpS, showed polar localization by immunofluorescence microscopy. Overexpression of McpS resulted in a dominant-negative effect on chemotaxis and caused a loss of polar clustering of the general MCP population. The polar localization of a soluble MCP defines a third, and unexpected, paradigm for cellular MCP localization.

* Corresponding author. Mailing address: Molecular, Cellular and Developmental Biology, University of Michigan, 830 N. University Ave., Ann Arbor, MI 48109. Phone: (734) 936-8068. Fax: (734) 647-0884. E-mail: maddock{at}umich.edu.

Journal of Bacteriology, November 2005, p. 7840-7844, Vol. 187, No. 22
0021-9193/05/$08.00+0     doi:10.1128/JB.187.22.7840-7844.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.





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