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Journal of Bacteriology, March 2007, p. 2119-2124, Vol. 189, No. 5
0021-9193/07/$08.00+0     doi:10.1128/JB.01362-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Bacteroides fragilis Synthesizes a DNA Invertase Affecting both a Local and a Distant Region{triangledown}

Hazeline Roche-Hakansson, Maria Chatzidaki-Livanis, Michael J. Coyne, and Laurie E. Comstock*

Channing Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts

Received 28 August 2006/ Accepted 8 December 2006

The activity of a fourth conserved tyrosine site-specific recombinase (Tsr) of Bacteroides fragilis was characterized. Its gene, tsr19, is adjacent to mpi, encoding the global DNA invertase regulating capsular polysaccharide biosynthesis. Unlike the other described Tsrs of B. fragilis, Tsr19 brings about inversion of two DNA regions, one local and one located distantly.

* Corresponding author. Mailing address: Channing Laboratory, 181 Longwood Avenue, Boston, MA 02115. Phone: (617) 525-7822. Fax: (617) 264-5193. E-mail: lcomstock{at}channing.harvard.edu.

{triangledown} Published ahead of print on 22 December 2006.

Journal of Bacteriology, March 2007, p. 2119-2124, Vol. 189, No. 5
0021-9193/07/$08.00+0     doi:10.1128/JB.01362-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

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  • Chatzidaki-Livanis, M., Coyne, M. J., Roche-Hakansson, H., Comstock, L. E. (2008). Expression of a Uniquely Regulated Extracellular Polysaccharide Confers a Large-Capsule Phenotype to Bacteroides fragilis. J. Bacteriol. 190: 1020-1026 [Abstract] [Full Text]  
  • Coyne, M. J., Comstock, L. E. (2008). Niche-Specific Features of the Intestinal Bacteroidales. J. Bacteriol. 190: 736-742 [Abstract] [Full Text]  


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