Evidence map›Paper›PMID 11698367›Full record

ArticleJournal of bacteriology2001

Genetic evidence for parallel pathways of chaperone activity in the periplasm of Escherichia coli.

A E Rizzitello, J R Harper, T J Silhavy

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 124 papers.

0numbers the graph read from it
0cells of the map it votes in
124citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

124 citing papers in PubMed, 248 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. The roles of theJournal of bacteriology · 2026
    Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Cracking outer membrane biogenesis.Biochimica et biophysica acta. Molecular cell research · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. Chaperones Skp and SurA dynamically expand unfolded OmpX and synergistically disassemble oligomeric aggregates.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  19. Article
  20. The sacrificial adaptor protein Skp functions to remove stalled substrates from the β-barrel assembly machine.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article

64 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

3 authors at 1 institution in 1 country.

A E RizzitelloDepartment of Molecular Biology, Princeton University, Princeton, NJ 08544, USA.
J R Harper
T 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 GM 07388NIGMS NIH HHS GM 34821NIGMS NIH HHS R01 GM034821NIGMS NIH HHS R37 GM034821NIGMS NIH HHS T32 GM007388
6 · The paper itself

Abstract

The periplasm of Escherichia coli contains many proteins proposed to have redundant functions in protein folding. Using depletion analysis, we directly demonstrated that null mutations in skp and surA, as well as in degP and surA, result in synthetic phenotypes, suggesting that Skp, SurA, and DegP are functionally redundant. The Deltaskp surA::kan combination has a bacteriostatic effect and leads to filamentation, while the degP::Tn10 surA::kan combination is bactericidal. The steady-state levels of several envelope proteins are greatly reduced upon depletion of a wild-type copy of surA in both instances. We suggest that the functional redundancy of Skp, SurA, and DegP lies in the periplasmic chaperone activity. Taken together, our data support a model in which the periplasm of E. coli contains parallel pathways for chaperone activity. In particular, we propose that Skp and DegP are components of the same pathway and that SurA is a component of a separate pathway. The loss of either pathway has minimal effects on the cell, while the loss of both pathways results in the synthetic phenotypes observed.

Indexed as

Carrier ProteinsEscherichia coli ProteinsBacterial Outer Membrane ProteinsDNA-Binding ProteinsDNA Transposable ElementsEscherichia coliMolecular ChaperonesMutationPeptidylprolyl IsomerasePeriplasmPhenotypePorinsReceptors, VirusBacterial Outer Membrane ProteinsCarrier ProteinsDNA-Binding ProteinsDNA Transposable ElementsEscherichia coli ProteinsmaltoporinsMolecular ChaperonesOMPA outer membrane proteinsPeptidylprolyl Isomeraseperiplasmic peptidylprolyl cis-trans isomerasePorinsReceptors, VirusSkp protein, E coliSurA protein, E coli

Identifiers

PMID11698367
PMCPMC95519
OpenAlexW2153932901

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.