Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1997 Nov;179(21):6862-4.
doi: 10.1128/jb.179.21.6862-6864.1997.

SigmaE is an essential sigma factor in Escherichia coli

A De Las Peñas  1 , L Connolly, C A Gross
Affiliations

SigmaE is an essential sigma factor in Escherichia coli

A De Las Peñas et al. J Bacteriol. 1997 Nov.

Abstract

SigmaE is an alternative sigma factor that controls the extracytoplasmic stress response in Escherichia coli. SigmaE is essential at high temperatures but was previously thought to be nonessential at temperatures below 37 degrees C. We present evidence that sigmaE is an essential sigma factor at all temperatures. Cells lacking sigmaE are able to grow at low temperatures because of the presence of a frequently arising, unlinked suppressor mutation.

PubMed Disclaimer

References

    1. Genes Dev. 1987 Jul;1(5):419-32 - PubMed
    1. Mol Microbiol. 1997 Apr;24(2):373-85 - PubMed
    1. Nucleic Acids Res. 1988 Nov 11;16(21):10053-67 - PubMed
    1. J Bacteriol. 1989 Mar;171(3):1574-84 - PubMed
    1. J Bacteriol. 1989 May;171(5):2689-96 - PubMed

Publication types

MeSH terms

LinkOut - more resources