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Control of Development by Altered Localization of a Transcription Factor in B. subtilis

Author(s)
Lin, Daniel Chi-Hong; Quisel, John D.; Grossman, Alan D.
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Abstract
In B. subtilis, the chromosome partitioning proteins Soj (ParA) and Spo0J (ParB) regulate the initiation of sporulation. Soj is a negative regulator of sporulation gene expression, and Spo0J antagonizes Soj function. Using fusions of Soj to green fluorescent protein, we found that Soj localized near the cell poles and upon entry into stationary phase oscillated from pole to pole. In the absence of Spo0J, Soj was associated predominantly with DNA. By in vivo cross-linking and immunoprecipitation, we found that Soj physically associates with developmentally regulated promoters, and this association increased in the absence of Spo0J. These results show that Soj switches localization and function depending on the chromosome partitioning protein Spo0J. We further show that mutations in the Soj ATPase domain disrupt localization and function and render Soj insensitive to regulation by Spo0J.
Date issued
1999-11
URI
http://hdl.handle.net/1721.1/83847
Department
Massachusetts Institute of Technology. Department of Biology
Journal
Molecular Cell
Publisher
Elsevier
Citation
Quisel, John D, Daniel Chi-Hong Lin, and Alan D Grossman. “Control of Development by Altered Localization of a Transcription Factor in B. subtilis.” Molecular Cell 4, no. 5 (November 1999): 665-672. Copyright © 1999 Cell Press.
Version: Final published version
ISSN
10972765
1097-4164

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