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Journal of Bacteriology, June 2007, p. 4544-4546, Vol. 189, No. 12
0021-9193/07/$08.00+0     doi:10.1128/JB.01831-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Localization of PcsB of Streptococcus pneumoniae and Its Differential Expression in Response to Stress{triangledown}

Megumi F. Mills,1 Mary E. Marquart,1 and Larry S. McDaniel1,2,3*

Departments of Microbiology,1 Surgery,2 Medicine, The University of Mississippi Medical Center, Jackson, Mississippi 392163

Received 6 December 2006/ Accepted 10 April 2007

PcsB of Streptococcus pneumoniae is an essential hydrolase involved in the separation of dividing cells. In this study, it was found that PcsB localizes to the plasma membrane and is released into the growth environment, yet it is detectable on the pneumococcal surface by flow cytometry analysis. High temperature and osmolarity led to upregulation of pcsB expression.

* Corresponding author. Mailing address: Department of Microbiology, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216. Phone: (601) 984-6880. Fax: (601) 984-1708. E-mail: LMcDaniel{at}microbio.umsmed.edu

{triangledown} Published ahead of print on 20 April 2007.

Journal of Bacteriology, June 2007, p. 4544-4546, Vol. 189, No. 12
0021-9193/07/$08.00+0     doi:10.1128/JB.01831-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.





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