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. 1990 Jul;172(7):4118–4121. doi: 10.1128/jb.172.7.4118-4121.1990

Transcriptional induction of purple membrane and gas vesicle synthesis in the archaebacterium Halobacterium halobium is blocked by a DNA gyrase inhibitor.

C F Yang 1, S DasSarma 1
PMCID: PMC213402  PMID: 2163398

Abstract

We have investigated the expression of the bacteriorhodopsin gene (bop) and the gas vesicle protein gene (gvpA) in the extremely halophilic archaebacterium Halobacterium halobium, using primer-directed reverse transcription of RNA to quantify message levels. The level of gvpA gene transcript was found to increase about 5-fold from early to mid-logarithmic growth phase, while the level of bop gene transcript increased about 20-fold from mid-logarithmic to stationary phase. Transcriptional induction of both the gvpA and bop genes was significantly reduced by aeration and almost completely blocked by the DNA gyrase inhibitor novobiocin.

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Selected References

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