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Journal of Bacteriology, December 2007, p. 9122-9125, Vol. 189, No. 24
0021-9193/07/$08.00+0     doi:10.1128/JB.01451-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Transposon Tn7 Directs Transposition into the Genome of Filamentous Bacteriophage M13 Using the Element-Encoded TnsE Protein

Jessica A. Finn,⁰ Adam R. Parks, and Joseph E. Peters^*

Department of Microbiology, Cornell University, Ithaca, New York

Received 7 September 2007/ Accepted 26 September 2007

The bacterial transposon Tn7 has a pathway of transposition that preferentially targets conjugal plasmids. We propose that this same transposition pathway recognizes a structure or complex found during filamentous bacteriophage replication, likely by targeting negative-strand synthesis. The ability to insert into both plasmid and bacteriophage DNAs that are capable of cell-to-cell transfer would help explain the wide distribution of Tn7 relatives.

Published ahead of print on 5 October 2007.

Present address: NYU Medical Center, 550 First Ave., New York, NY 10016.