Evidence map›Paper›PMID 18223085›Full record

ArticleJournal of bacteriology2008

Signal integration by the two-component signal transduction response regulator CpxR.

Alan J Wolfe, Niyati Parikh, Bruno P Lima, Bozena Zemaitaitis

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
6.7field-weighted citation impact, top 3% 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

68 citing papers in PubMed, 126 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
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  10. Regulation of phosphate starvation-specific responses inMicrobiology (Reading, England) · 2023
    Review
  11. Article
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  15. Article
  16. Role ofFrontiers in microbiology · 2021
    Article
  17. Article
  18. Article
  19. Article
  20. Article

8 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

4 authors.

Alan J WolfeDepartment of Microbiology and Immunology, Loyola University Medical School, 2160 S. First Ave., Bldg. 105, Maywood, IL 60153, USA. awolfe@lumc.edu
Niyati Parikh
Bruno P Lima
Bozena Zemaitaitis

Funding

Sensing central metabolic stressR01GM066130 · NIGMS · LOYOLA UNIVERSITY CHICAGO · PI WOLFE, ALAN J · 2004 to 2012
$2.7M
NIGMS NIH HHS GM066130NIGMS NIH HHS R01 GM066130
6 · The paper itself

Abstract

The CpxAR two-component signal transduction system in Escherichia coli and other pathogens senses diverse envelope stresses and promotes the transcription of a variety of genes that remedy these stresses. An important member of the CpxAR regulon is cpxP. The CpxA-dependent transcription of cpxP has been linked to stresses such as misfolded proteins and alkaline pH. It also has been proposed that acetyl phosphate, the intermediate of the phosphotransacetylase (Pta)-acetate kinase (AckA) pathway, can activate the transcription of cpxP in a CpxA-independent manner by donating its phosphoryl group to CpxR. We tested this hypothesis by measuring the transcription of cpxP using mutants with mutations in the CpxAR pathway, mutants with mutations in the Pta-AckA pathway, and mutants with a combination of both types of mutations. From this epistasis analysis, we learned that CpxR integrates diverse stimuli. The stimuli that originate in the envelope depend on CpxA, while those associated with growth and central metabolism depend on the Pta-AckA pathway. While CpxR could receive a phosphoryl group from acetyl phosphate, this global signal was not the primary trigger for CpxR activation associated with the Pta-AckA pathway. On the strength of these results, we contend that the interactions between central metabolism and signal transduction can be quite complex and that successful investigations of such interactions must include a complete epistatic analysis.

Indexed as

Bacterial ProteinsEscherichia coli ProteinsGene Expression Regulation, BacterialHydrogen-Ion ConcentrationModels, BiologicalMutationPhosphorylationPromoter Regions, GeneticProtein KinasesRegulonSignal TransductionTranscription, GeneticBacterial ProteinsCpxA protein, E coliCpxR protein, BacteriaEscherichia coli ProteinsProtein Kinases

Identifiers

PMID18223085
PMCPMC2293188
OpenAlexW2031678726

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.