Evidence map›Paper›PMID 27795390›Full record

ArticlemBio2016

Identification of a New Lipoprotein Export Signal in Gram-Negative Bacteria.

Frédéric Lauber, Guy Richard Cornelis, Francesco Renzi

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in mBio, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

35 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Structural basis of iron piracy by human gutProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Co-opting the bacterial lipoprotein pathway for the biosynthesis of lipidated macrocyclic peptides.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. Identification and characterization of the functional LolB ortholog inbioRxiv : the preprint server for biology · 2026
    Article
  6. Article
  7. Article
  8. Glycoside hydrolase-mediated glucomannan catabolism inProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Lessons from the model gut BacteroidalesJournal of bacteriology · 2025
    Review
  10. Bam complex redefined in Bacteroidota.Nature microbiology · 2025
    Article
  11. Article
  12. DNA-utilization loci enable exogenous DNA metabolism in gut Bacteroidales.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Dual membrane-spanning anti-sigma factors regulate vesiculation inProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  18. Article
  19. A molecular toolkit for heterologous protein secretion acrossbioRxiv : the preprint server for biology · 2023
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Frédéric LauberDépartement de Biologie, Unité de Recherche en Biologie des Microorganismes (URBM), Université de Namur, Namur, Belgium.
Guy Richard CornelisDépartement de Biologie, Unité de Recherche en Biologie des Microorganismes (URBM), Université de Namur, Namur, Belgium.
Francesco RenziDépartement de Biologie, Unité de Recherche en Biologie des Microorganismes (URBM), Université de Namur, Namur, Belgium francesco.renzi@unamur.be.
University of Namur · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bacteria of the phylum Bacteroidetes, including commensal organisms and opportunistic pathogens, harbor abundant surface-exposed multiprotein membrane complexes (Sus-like systems) involved in carbohydrate acquisition. These complexes have been mostly linked to commensalism, and in some instances, they have also been shown to play a role in pathogenesis. Sus-like systems are mainly composed of lipoproteins anchored to the outer membrane and facing the external milieu. This lipoprotein localization is uncommon in most studied Gram-negative bacteria, while it is widespread in Bacteroidetes Little is known about how these complexes assemble and particularly about how lipoproteins reach the bacterial surface. Here, by bioinformatic analyses, we identify a lipoprotein export signal (LES) at the N termini of surface-exposed lipoproteins of the human pathogen Capnocytophaga canimorsus corresponding to K-(D/E) IMPORTANCE: Bacteria of the phylum Bacteroidetes are important human commensals and pathogens. Understanding their biology is therefore a key question for human health. A main feature of these bacteria is the presence of abundant lipoproteins at their surface that play a role in nutrient acquisition. To date, the underlying mechanism of lipoprotein transport is unknown. We show for the first time that Bacteroidetes surface lipoproteins share an N-terminal signal that drives surface localization. The localization and overall negative charge of the lipoprotein export signal (LES) are crucial for its role. Overall, our findings provide the first evidence that Bacteroidetes are endowed with a new bacterial lipoprotein export pathway that flips lipoproteins across the outer membrane.

Indexed as

Protein Sorting SignalsBacteroides fragilisCapnocytophagaComputational BiologyDNA Mutational AnalysisFlavobacteriumLipoproteinsMembrane ProteinsProtein TransportLipoproteinsMembrane ProteinsProtein Sorting Signals

Identifiers

PMID27795390
PMCPMC5080379
OpenAlexW2533114037

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.