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Journal of Bacteriology, August 2004, p. 5551-5554, Vol. 186, No. 16
0021-9193/04/$08.00+0 DOI: 10.1128/JB.186.16.5551-5554.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
Australian Bacterial Pathogenesis Program, Department of Microbiology, Monash University, Clayton 3800, Australia
Received 17 March 2004/ Accepted 7 May 2004
Pathogenicity islands are capable of excision and insertion within bacterial chromosomes. We describe a protein, Rox, that stimulates excision of the Shigella resistance locus pathogenicity island in Shigella flexneri. Sequence analysis suggests that Rox belongs to a new subfamily of recombination directionality factors, which includes proteins from P4, enterohemorrhagic Escherichia coli, and Yersinia pestis.
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