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Journal of Bacteriology, May 1999, p. 2942-2946, Vol. 181, No. 9
0021-9193/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Synthesis of the sigma D Protein Is Not Sufficient To Trigger Expression of Motility Functions in Bacillus subtilis

Dong-Hui Yang, Johannes von Kalckreuth, and Rudolf Allmansberger*

Lehrstuhl für Mikrobiologie, Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany

Received 8 September 1998/Accepted 17 February 1999

The gene encoding sigma D, sigD, is transcribed from two promoter regions, the fla/che promoter region in front of the fla/che operon and PsigD directly in front of sigD. If sigma D is translated from transcripts originating from PsigD, the cell is unable to express motility functions but synthesizes autolysins. Therefore, one function of the additional promoter is to allow the cell to express autolysins without expressing motility functions as well.

* Corresponding author. Mailing address: Lehrstuhl für Mikrobiologie, Universität Erlangen-Nürnberg, Staudtstr. 5, D-91058 Erlangen, Germany. Phone: 49 9131 8528084. Fax: 49 9131 8528082. E-mail: rallmans{at}biologie.uni-erlangen.de.

Journal of Bacteriology, May 1999, p. 2942-2946, Vol. 181, No. 9
0021-9193/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.


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