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Bipolar Localization of the Replication Origin Regions of Chromosomes in Vegetative and Sporulating Cells of B. subtilis

Author(s)
Webb, Chris D; Teleman, Aurelio; Gordon, Scott; Straight, Aaron; Belmont, Andrew; Lin, Daniel Chi-Hong; Wright, Andrew; Losick, Richard; Grossman, Alan Davis; ... Show more Show less
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Abstract
To investigate chromosome segregation in B. subtilis, we introduced tandem copies of the lactose operon operator into the chromosome near the replication origin or terminus. We then visualized the position of the operator cassettes with green fluorescent protein fused to the LacI repressor. In sporulating bacteria, which undergo asymmetric cell division, origins localized near each pole of the cell whereas termini were restricted to the middle. In growing cells, which undergo binary fission, origins were observed at various positions but preferentially toward the poles early in the cell cycle. In contrast, termini showed little preference for the poles. These results indicate the existence of a mitotic-like apparatus that is responsible for moving the origin regions of newly formed chromosomes toward opposite ends of the cell.
Date issued
1997-03
URI
http://hdl.handle.net/1721.1/83854
Department
Massachusetts Institute of Technology. Department of Biology
Journal
Cell
Publisher
Elsevier
Citation
Webb, Chris D, Aurelio Teleman, Scott Gordon, Aaron Straight, Andrew Belmont, Daniel Chi-Hong Lin, Alan D Grossman, Andrew Wright, and Richard Losick. “Bipolar Localization of the Replication Origin Regions of Chromosomes in Vegetative and Sporulating Cells of B. subtilis.” Cell 88, no. 5 (March 1997): 667-674. Copyright © 1997 Cell Press
Version: Final published version
ISSN
00928674
1097-4172

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