Rasouly Aviram, Shenhar Yotam, Ron Eliora Z
Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel, 69978.
J Bacteriol. 2007 Aug;189(15):5779-81. doi: 10.1128/JB.00453-07. Epub 2007 May 25.
The conserved chaperone Hsp31 of Escherichia coli is transcribed at low temperatures by sigma(S) and repressed by H-NS, whereas at high temperature, transcription is by sigma70 independently of both sigma(S) and H-NS. Here we present evidence for an additional, novel, temperature-dependent control of Hsp31 expression by increased transcript stability.
大肠杆菌中保守的伴侣蛋白Hsp31在低温下由σ(S)转录,并受H-NS抑制,而在高温下,转录由σ70进行,独立于σ(S)和H-NS。在此,我们提供证据表明,通过增加转录本稳定性,Hsp31表达还存在一种额外的、新的温度依赖性调控。