Evidence map›Paper›PMID 26149544›Full record

ArticleScientific reports2015

Trapped lipopolysaccharide and LptD intermediates reveal lipopolysaccharide translocation steps across the Escherichia coli outer membrane.

Xuejun Li, Yinghong Gu, Haohao Dong, Wenjian Wang, Changjiang Dong

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
5.4field-weighted citation impact, top 4% 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, 63 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Small siphophage binding to an open state of the LptDE outer membrane lipopolysaccharide translocon.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Lipid Transport Across Bacterial Membranes.Annual review of cell and developmental biology · 2022
    Review
  15. Article
  16. Article
  17. Review
  18. Border Control: Regulating LPS Biogenesis.Trends in microbiology · 2021
    Review
  19. Article
  20. Article
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

5 authors at 4 institutions in 2 countries.

Xuejun LiBiomedical Research Centre, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
Yinghong GuBiomedical Research Centre, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
Haohao DongBiomedical Sciences Research Complex, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK.
Wenjian WangLaboratory of Department of Surgery, the First Affiliated Hospital, Sun Yat-sen University, 58 Zhongshan Road II, Guangzhou, Guangdong, 510080, China.
Changjiang DongBiomedical Research Centre, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
University of East Anglia · GBNorwich Research Park · GBSun Yat-sen University · CNUniversity of St Andrews · GB

Funding

Medical Research Council G1100110Wellcome Trust WT106121MA
6 · The paper itself

Abstract

Lipopolysaccharide (LPS) is a main component of the outer membrane of Gram-negative bacteria, which is essential for the vitality of most Gram-negative bacteria and plays a critical role for drug resistance. LptD/E complex forms a N-terminal LPS transport slide, a hydrophobic intramembrane hole and the hydrophilic channel of the barrel, for LPS transport, lipid A insertion and core oligosaccharide and O-antigen polysaccharide translocation, respectively. However, there is no direct evidence to confirm that LptD/E transports LPS from the periplasm to the external leaflet of the outer membrane. By replacing LptD residues with an unnatural amino acid p-benzoyl-L-phenyalanine (pBPA) and UV-photo-cross-linking in E.coli, the translocon and LPS intermediates were obtained at the N-terminal domain, the intramembrane hole, the lumenal gate, the lumen of LptD channel, and the extracellular loop 1 and 4, providing the first direct evidence and "snapshots" to reveal LPS translocation steps across the outer membrane.

Indexed as

Bacterial Outer Membrane ProteinsBenzophenonesBiological TransportCell MembraneEscherichia coliEscherichia coli ProteinsHydrophobic and Hydrophilic InteractionsLipopolysaccharidesO AntigensPeriplasmPhenylalanineProtein BindingProtein Structure, SecondaryUltraviolet Rays4-benzoylphenylalanineBacterial Outer Membrane ProteinsBenzophenonesEscherichia coli ProteinsLipopolysaccharidesLptD protein, E coliO AntigensPhenylalanine

Identifiers

PMID26149544
PMCPMC4493717
OpenAlexW1477452881

What OpenQuestion holds

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LicenceCC BY
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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.