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Journal of Bacteriology, April 2005, p. 2532-2536, Vol. 187, No. 7
0021-9193/05/$08.00+0     doi:10.1128/JB.187.7.2532-2536.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Soj Antagonizes Spo0A Activation of Transcription in Bacillus subtilis

Brett N. McLeod and George B. Spiegelman*

Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada

Received 20 October 2004/ Accepted 28 December 2004

The ParA family protein Soj appears to negatively regulate sporulation in Bacillus subtilis by inhibiting transcription from promoters that are activated by phosphorylated Spo0A. We tested in vitro Soj inhibition of Spo0A-independent variants of a promoter that Soj inhibited (PspoIIG). Transcription from the variants was less sensitive to Soj inhibition, suggesting that inhibition of wild-type PspoIIG was linked to transcription activation by Spo0A.

* Corresponding author. Mailing address: Department of Microbiology and Immunology, University of British Columbia, 6174 University Blvd., Vancouver, British Columbia V6T 1Z3, Canada. Phone: (604) 822-2036. Fax: (604) 822-6041. E-mail: spie{at}interchange.ubc.ca.

Journal of Bacteriology, April 2005, p. 2532-2536, Vol. 187, No. 7
0021-9193/05/$08.00+0     doi:10.1128/JB.187.7.2532-2536.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



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