Journal
JOURNAL OF BACTERIOLOGY
Volume 182, Issue 3, Pages 833-836Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/JB.182.3.833-836.2000
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Funding
- Wellcome Trust Funding Source: Medline
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The enterobacterial flhDC master operon activates expression of the flagellar biogenesis gene hierarchy and also represses cell division. During Proteus mirabilis differentiation into elongated hyperflagellated swarm cells, flhDC transcription is strongly but transiently increased. We show that concentration of the FlhD and FlhC proteins is also tightly controlled at the posttranslational level. This is achieved by protein degradation, which is most severe after differentiation when the half-life of both proteins is ca. 2 min. Degradation is energy dependent and putatively involves the Lon protease.
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