Role of Bacillus subtilis SpoIIIE in DNA transport across the mother cell-prespore division septum.
The SpoIIIE protein of Bacillus subtilis is required for chromosome segregation during spore formation. The COOH-terminal cytoplasmic part of SpoIIIE was shown to be a DNA-dependent adenosine triphosphatase (ATPase) capable of tracking along DNA in the presence of ATP, and the NH(2)-terminal part of the protein was found to mediate its localization to the division septum. Thus, during sporulation, SpoIIIE appears to act as a DNA pump that actively moves one of the replicated pair of chromosom...Expand abstract
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