Evidence map›Paper›PMID 27537185›Full record

ArticlePloS one2016

The O-Antigen Flippase Wzk Can Substitute for MurJ in Peptidoglycan Synthesis in Helicobacter pylori and Escherichia coli.

Wael Elhenawy, Rebecca M Davis, Jutta Fero, Nina R Salama, Mario F Felman, Natividad Ruiz

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 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 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
4.5field-weighted citation impact, top 6% 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

18 citing papers in PubMed, 31 citations in OpenAlex.

  1. Analysis of essential genes inJournal of bacteriology · 2025
    Article
  2. Analysis of Essential Genes inbioRxiv : the preprint server for biology · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Structure and Mechanism of the Lipid Flippase MurJ.Annual review of biochemistry · 2022
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Regulation of peptidoglycan synthesis and remodelling.Nature reviews. Microbiology · 2020
    Review
  12. Article
  13. Structure and mutagenic analysis of the lipid II flippase MurJ fromProceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Wael ElhenawyDepartment of Biological Sciences, University of Alberta, Edmonton T6G 2E9, Alberta, Canada.
Rebecca M DavisDepartment of Microbiology, The Ohio State University, Columbus, OH 43210, United States of America.
Jutta FeroDivision of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, United States of America.
Nina R SalamaDivision of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, United States of America.
Mario F FelmanDepartment of Biological Sciences, University of Alberta, Edmonton T6G 2E9, Alberta, Canada.
Natividad RuizDepartment of Microbiology, The Ohio State University, Columbus, OH 43210, United States of America.ORCID http://orcid.org/0000-0002-6369-2206
Fred Hutch Cancer Center · USThe Ohio State University · USUniversity of Alberta · CA

Funding

Envelope Biogenesis in Gram-negative BacteriaR01GM100951 · NIGMS · OHIO STATE UNIVERSITY · PI RUIZ, NATIVIDAD · 2012 to 2023
$3.7M
Elucidation of a bacterial cell shape generating program and pathogenic functionsR01AI094839 · NIAID · FRED HUTCHINSON CANCER RESEARCH CENTER · PI SALAMA, NINA · 2012 to 2016
$2.1M
NIAID NIH HHS R01 AI094839NIGMS NIH HHS R01 GM100951
6 · The paper itself

Abstract

The peptidoglycan (PG) cell wall is an essential component of the cell envelope of most bacteria. Biogenesis of PG involves a lipid-linked disaccharide-pentapeptide intermediate called lipid II, which must be translocated across the cytoplasmic membrane after it is synthesized in the inner leaflet of this bilayer. Accordingly, it has been demonstrated that MurJ, the proposed lipid II flippase in Escherichia coli, is required for PG biogenesis, and thereby viability. In contrast, MurJ is not essential in Bacillus subtilis because this bacterium produces AmJ, an unrelated protein that is functionally redundant with MurJ. In this study, we investigated why MurJ is not essential in the prominent gastric pathogen, Helicobacter pylori. We found that in this bacterium, Wzk, the ABC (ATP-binding cassette) transporter that flips the lipid-linked O- or Lewis- antigen precursors across the inner membrane, is redundant with MurJ for cell viability. Heterologous expression of wzk in E. coli also suppresses the lethality caused by the loss of murJ. Furthermore, we show that this cross-species complementation is abolished when Wzk is inactivated by mutations that target a domain predicted to be required for ATPase activity. Our results suggest that Wzk can flip lipid II, implying that Wzk is the flippase with the most relaxed specificity for lipid-linked saccharides ever identified.

Indexed as

Antigens, BacterialATP-Binding Cassette TransportersCell MembraneEscherichia coliEscherichia coli ProteinsGlycosylationHelicobacter pyloriMembrane Transport ProteinsPeptidoglycanPhospholipid Transfer ProteinsAntigens, BacterialATP-Binding Cassette TransportersEscherichia coli ProteinsMembrane Transport ProteinsMurJ protein, E coliPeptidoglycanPhospholipid Transfer ProteinsWzx protein, E coli

Identifiers

PMID27537185
PMCPMC4990322
OpenAlexW2509369257

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.