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Journal of Bacteriology, February 2007, p. 1478-1481, Vol. 189, No. 4
0021-9193/07/$08.00+0     doi:10.1128/JB.01125-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Derepression of Excision of Integrative and Potentially Conjugative Elements from Streptococcus thermophilus by DNA Damage Response: Implication of a cI-Related Repressor{triangledown}

Xavier Bellanger, Catherine Morel, Bernard Decaris, and Gérard Guédon*

Laboratoire de Génétique et Microbiologie UMR1128, INRA, IFR110, Université Henri Poincaré Nancy 1, F-54506 Vandoeuvre-lès-Nancy, France

Received 27 July 2006/ Accepted 9 November 2006

A DNA-damaging agent, mitomycin C, derepresses the site-specific excision of two integrative and potentially conjugative elements from Streptococcus thermophilus, ICESt1 and ICESt3. The regulation pathway involves a repressor related to phage lambda cI repressor. It could also involve a putative regulator related to another type of phage repressors, the "cI-like" repressors.

* Corresponding author. Mailing address: Laboratoire de Génétique et Microbiologie UMR1128, INRA, Faculté des Sciences et Techniques, Université Henri Poincaré Nancy 1, 1 Bd des Aiguillettes, BP239, F-54506 Vandoeuvre-lès-Nancy, France. Phone: (33) 03 83 68 49 72. Fax: (33) 03 83 68 11 76. E-mail: guedon{at}nancy.inra.fr.

{triangledown} Published ahead of print on 17 November 2006.

Journal of Bacteriology, February 2007, p. 1478-1481, Vol. 189, No. 4
0021-9193/07/$08.00+0     doi:10.1128/JB.01125-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.





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