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Journal of Bacteriology, January 2000, p. 518-521, Vol. 182, No. 2
0021-9193/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.

opdA, a Salmonella enterica Serovar Typhimurium Gene Encoding a Protease, Is Part of an Operon Regulated by Heat Shock

Christopher A. Conlindagger and Charles G. Miller*

Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801

Received 14 June 1999/Accepted 21 October 1999

The opdA (prlC) gene of Salmonella enterica serovar Typhimurium and Escherichia coli encodes the metalloprotease oligopeptidase A (OpdA). We report that opdA is cotranscribed with a downstream open reading frame, yhiQ. Transcription of this operon is induced after a temperature shift (30 to 42°C), and this induction depends on the heat shock sigma factor encoded by the rpoH (htpR) gene.

* Corresponding author. Mailing address: Department of Microbiology, University of Illinois at Urbana-Champaign, B103 CLSL, 601 S. Goodwin, Urbana, IL 61801. Phone: (217) 244-8418. Fax: (217) 244-6697. E-mail: charlesm{at}uiuc.edu.

dagger Present address: Department of Biological Sciences, Mankato State University, Mankato, MN 56002-8400.

Journal of Bacteriology, January 2000, p. 518-521, Vol. 182, No. 2
0021-9193/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.




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