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Journal of Bacteriology, January 2007, p. 284-287, Vol. 189, No. 1
0021-9193/07/$08.00+0     doi:10.1128/JB.01142-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

FoxB of Pseudomonas aeruginosa Functions in the Utilization of the Xenosiderophores Ferrichrome, Ferrioxamine B, and Schizokinen: Evidence for Transport Redundancy at the Inner Membrane{triangledown}

Páraic Ó Cuív, Damien Keogh, Paul Clarke, and Michael O'Connell*

School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland

Received 28 July 2006/ Accepted 11 October 2006

Expression of the inner membrane protein FoxB (PA2465) of Pseudomonas aeruginosa in mutants of Sinorhizobium meliloti that are defective in the utilization of ferrichrome, ferrioxamine B, and schizokinen resulted in the restoration of siderophore utilization. Mutagenesis of foxB in P. aeruginosa did not abolish siderophore utilization, suggesting that the function is redundant.

* Corresponding author. Mailing address: School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland. Phone: 353 1 7005318. Fax: 353 1 7005412. E-mail: michael.oconnell{at}dcu.ie.

{triangledown} Published ahead of print on 20 October 2006.

Journal of Bacteriology, January 2007, p. 284-287, Vol. 189, No. 1
0021-9193/07/$08.00+0     doi:10.1128/JB.01142-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.





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