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Cited by 273

The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.

The sigma(E) and the Cpx signal transduction systems control the synthesis of periplasmic protein-folding enzymes in Escherichia coli.

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Danese, P N, Silhavy, T J·1997·Genes & Development

Abstract

In Escherichia coli, the heat shock-inducible sigma-factor sigma(E) and the Cpx two-component signal transduction system are both attuned to extracytoplasmic stimuli. For example, sigma(E) activity rises in response to the overproduction of various outer-membrane proteins. Similarly, the activity of the Cpx signal transduction pathway, which consists of an inner-membrane sensor (CpxA) and a cognate response regulator (CpxR), is stimulated by overproduction of the outer-membrane lipoprotein, NlpE. In response to these extracytoplasmic stimuli, sigma(E) and CpxA/CpxR stimulate the transcription of degP, which encodes a periplasmic protease. This suggests that CpxA/CpxR and sigma(E) both mediate protein turnover within the bacterial envelope. Here, we show that CpxA/CpxR and sigma(E) also control the synthesis of periplasmic enzymes that can facilitate protein-folding reactions. Specifically, sigma(E) controls transcription of fkpA, which specifies a periplasmic peptidyl-prolyl cis/trans isomerase. Similarly, the Cpx system controls transcription of the dsbA locus, which encodes a periplasmic enzyme required for efficient disulfide bond formation in several extracytoplasmic proteins. Taken together, these results indicate that sigma(E) and CpxA/CpxR are involved in regulating both protein-turnover and protein-folding activities within the bacterial envelope.

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Metadata

Authors
Danese, P. N., & Silhavy, T. J.
Venue
Genes & Development
Published
1997-05-01
Volume
11
Issue
9
Pages
1183-1193
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2009376936
Cited by
273
References
30
Type
posted content
Language
en
Open access
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CoChat. (2026). Citation check: The sigma(E) and the Cpx signal transduction systems control the synthesis of periplasmic protein-folding enzymes in Escherichia coli. https://app.cochat.ai/papers/10.1101/gad.11.9.1183
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Danese, P. N., & Silhavy, T. J. (1997). The sigma(E) and the Cpx signal transduction systems control the synthesis of periplasmic protein-folding enzymes in Escherichia coli. Genes & Development. https://doi.org/10.1101/gad.11.9.1183

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