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Journal of Bacteriology, December 2008, p. 8230-8233, Vol. 190, No. 24
0021-9193/08/$08.00+0     doi:10.1128/JB.01242-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

Dissecting the Role of the N-Terminal Region of the Escherichia coli Global Transcription Factor FNR {triangledown}

Aixin Yan{dagger} and Patricia J. Kiley*

Department of Biomolecular Chemistry, University of Wisconsin, Madison, Wisconsin, 53706

Received 5 September 2008/ Accepted 7 October 2008

The role of the N-terminal region of the transcription factor FNR, which immediately precedes the first ligand (Cys20) of the [4Fe-4S] cluster, was investigated. We found that truncation mutants that removed residues 2 to 16 and 2 to 17 had wild-type levels of FNR protein but surprisingly altered O2 regulation.

* Corresponding author. Mailing address: 1300 University Avenue, 574 Medical Science Center, Madison, WI 53706. Phone: (608) 262-6632. Fax: (608) 262-5253. E-mail: pjkiley{at}wisc.edu

{triangledown} Published ahead of print on 17 October 2008.

{dagger} Present address: School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China.

Journal of Bacteriology, December 2008, p. 8230-8233, Vol. 190, No. 24
0021-9193/08/$08.00+0     doi:10.1128/JB.01242-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.





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