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Extra cytoplasmic function σ factor activation
Journal article   Peer reviewed

Extra cytoplasmic function σ factor activation

Theresa D Ho and Craig D Ellermeier
Current opinion in microbiology, Vol.15(2), pp.182-188
04/2012
DOI: 10.1016/j.mib.2012.01.001
PMCID: PMC3320685
PMID: 22381678

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Abstract

The bacterial cell envelope is essential for cell viability and is a target for numerous antibiotics and host immune defenses. Thus bacteria must sense and respond to damage to the cell envelope. Many bacteria utilize alternative σ factors such as extracytoplasmic function (ECF) σ factors to respond to cell envelope stress. Although ECF σ factors are utilized by both Gram negative and Gram positive bacteria to respond to cell envelope stress, the mechanisms of sensing differ. In this review, we examine the events and proteins that are required for activation of two model extracytoplasmic function σ factors, σ(E) in E. coli and σ(W) in B. subtilis.
Sigma Factor - metabolism Escherichia coli - genetics Bacterial Proteins - genetics Escherichia coli - metabolism Bacterial Proteins - metabolism Gene Expression Regulation, Bacterial Sigma Factor - genetics Bacillus subtilis - metabolism Bacillus subtilis - genetics

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