Evidence map›Paper›PMID 12670966›Full record

ArticleJournal of bacteriology2003

Signal detection and target gene induction by the CpxRA two-component system.

Patricia A DiGiuseppe, Thomas J Silhavy

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 122 papers.

0numbers the graph read from it
0cells of the map it votes in
122citing papers in PubMed
4.0field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

122 citing papers in PubMed, 223 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Cpx-signalling innpj antimicrobials and resistance · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Simulated Colonic Fluid Replicates theInfection and immunity · 2022
    Article
  15. Article
  16. Article
  17. Protein design-scapes generated by microfluidic DNA assembly elucidate domain coupling in the bacterial histidine kinase CpxA.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  18. Role ofFrontiers in microbiology · 2021
    Article
  19. Article
  20. Article

62 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Patricia A DiGiuseppeDepartment of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA.
Thomas J Silhavy
Princeton University · US

Funding

PREDOCTORAL TRAINING PROGRAM IN GENETICST32GM007388 · NIGMS · PRINCETON UNIVERSITY · PI CRISTEA, ILEANA M. · 1985 to 2022
$27.4M
GENETIC ANALYSIS OF PROTEIN EXPORTR37GM034821 · NIGMS · PRINCETON UNIVERSITY · PI SILHAVY, THOMAS J. · 1999 to 2008
$4.9M
GENETIC ANALYSIS OF PROTEIN EXPORTR01GM034821 · NIGMS · PRINCETON UNIVERSITY · PI SILHAVY, THOMAS J. · 1985 to 2015
$4.7M
NIGMS NIH HHS GM07388NIGMS NIH HHS GM34821NIGMS NIH HHS R01 GM034821NIGMS NIH HHS R37 GM034821NIGMS NIH HHS T32 GM007388
6 · The paper itself

Abstract

The Cpx pathway is a two-component signal transduction system that senses a variety of envelope stresses, including misfolded proteins, and responds by upregulating periplasmic folding and trafficking factors. CpxA resides in the inner membrane and has both kinase and phosphatase activities. CpxR, the response regulator, mediates a response by activating transcription of stress-combative genes. Signal transduction is subject to feedback inhibition via regulon member CpxP and autoamplification. Recently, it was shown that the Cpx pathway is also upregulated when cells adhere to hydrophobic surfaces and that this response is dependent on the outer membrane lipoprotein NlpE. Here we show that while NlpE is required for induction of the Cpx pathway by adhesion, induction by envelope stress and during growth is NlpE independent. We show that while all of the envelope stresses tested induce the Cpx pathway in a manner that is dependent on the periplasmic domain of CpxA, induction during growth is independent of CpxA. Therefore, we propose that the Cpx pathway can sense inducing cues that enter the signaling pathway at three distinct points. Although CpxP is not required for induction of the Cpx pathway, we show that its activity as a negative regulator of CpxA is inactivated by envelope stress. Moreover, the cpxP promoter is more inducible than any other regulon member tested. Consistent with these results, we suggest that CpxP performs a second function, most likely that of a chaperone. Finally, we show that two Cpx-regulated genes are differentially upregulated in response to different envelope stresses, suggesting the existence of three stress-responsive systems.

Indexed as

Escherichia coli ProteinsSignal TransductionAdaptation, PhysiologicalBacterial AdhesionBacterial Outer Membrane ProteinsBacterial ProteinsGene ExpressionGram-Negative BacteriaLipoproteinsMembrane ProteinsMolecular ChaperonesPeriplasmProtein KinasesRegulonTranscription, GeneticBacterial Outer Membrane ProteinsBacterial ProteinsCpxA protein, bacteriaCpxP protein, bacteriaCpxR protein, BacteriaEscherichia coli ProteinsLipoproteinsMembrane ProteinsMolecular ChaperonesNlpE protein, E coliProtein Kinases

Identifiers

PMID12670966
PMCPMC152615
OpenAlexW2116021469

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.