Evidence map›Paper›PMID 9843943›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1998

Differential use of the signal recognition particle translocase targeting pathway for inner membrane protein assembly in Escherichia coli.

J W de Gier, P A Scotti, A Sääf, Q A Valent, A Kuhn, J Luirink, G von Heijne

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
9.7field-weighted citation impact, top 2% 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

37 citing papers in PubMed, 128 citations in OpenAlex.

  1. Review
  2. The Dynamic SecYEG Translocon.Frontiers in molecular biosciences · 2021
    Review
  3. Review
  4. Article
  5. Membrane localization of small proteins in Escherichia coli.The Journal of biological chemistry · 2011
    Article
  6. Article
  7. Rational design of a fusion partner for membrane protein expression in E. coli.Protein science : a publication of the Protein Society · 2009
    Article
  8. Article
  9. Article
  10. SPdb--a signal peptide database.BMC bioinformatics · 2005
    Article
  11. Article
  12. Article
  13. Article
  14. Ligand crowding at a nascent signal sequence.The Journal of cell biology · 2003
    Article
  15. A conserved function of YidC in the biogenesis of respiratory chain complexes.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

J W de GierDepartment of Biochemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm University, Sweden.
P A Scotti
A Sääf
Q A Valent
A Kuhn
J Luirink
G von Heijne
Stockholm University · SEUniversity of Hohenheim · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Assembly of several inner membrane proteins-leader peptidase (Lep), a Lep derivative (Lep-inv) that inserts with an inverted topology compared with the wild-type protein, the phage M13 procoat protein, and a procoat derivative (H1-procoat) with the hydrophobic core of the signal peptide replaced by a stretch from the first transmembrane segment in Lep-has been studied in vitro and in Escherichia coli strains that are conditional for the expression of either the 54 homologue (Ffh) or 4.5S RNA, which are the two components of the E. coli signal recognition particle (SRP), or SecE, an essential core component of the E. coli preprotein translocase. Membrane insertion has also been tested in a SecB null strain. Lep, Lep-inv, and H1-procoat require SRP for correct assembly into the inner membrane; in contrast, we find that wild-type procoat does not. Lep and, surprisingly, Lep-inv and H1-procoat fail to insert properly when SecE is depleted, whereas insertion of wild-type procoat is unaffected under these conditions. None of the proteins depend on SecB for assembly. These observations indicate that inner membrane proteins can assemble either by a mechanism in which SRP delivers the protein at the preprotein translocase or by what appears to be a direct integration into the lipid bilayer. The observed change in assembly mechanism when the hydrophobicity of the procoat signal peptide is increased demonstrates that the assembly of an inner membrane protein can be rerouted between different pathways.

Indexed as

Escherichia coli ProteinsBacterial ProteinsEscherichia coliMembrane ProteinsProtein Processing, Post-TranslationalSEC Translocation ChannelsSignal TransductionBacterial ProteinsEscherichia coli ProteinsMembrane ProteinsSecE protein, E coliSEC Translocation Channels

Identifiers

PMID9843943
PMCPMC24503
OpenAlexW2140873739

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.