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"A cell division inhibitor SulA of Escherichia coli directly interacts with FtsZ through GTP hydrolysis."
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Higashitani A, Higashitani N, Horiuchi K
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Published April 6, 1995
in Biochem Biophys Res Commun
volume 209
.
Pubmed ID:
7726836
Abstract:
E. coli SulA is an SOS-inducible protein that inhibits cell division. FtsZ is a protein that plays a central role in bacterial cell division. Using purified SulA protein that was fused to the maltose binding protein, we demonstrate in vitro that SulA interacts with FtsZ to form a stable complex. The reaction requires GTP and Mg ion. GDP and GTP gamma S cannot substitute for GTP, which suggests that hydrolysis of GTP is required for the reaction. The complex is formed in a molar ratio of approximately one to one of the two proteins. It is likely that the complex formation represents the in vivo mechanism by which SulA inhibits cell division.
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Last modification of this entry: Oct. 11, 2010
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