Evidence map›Paper›PMID 28423018›Full record

ArticlePloS one2017

Comprehensive analysis of phospholipids and glycolipids in the opportunistic pathogen Enterococcus faecalis.

Rafi Rashid, Amaury Cazenave-Gassiot, Iris H Gao, Zeus J Nair, Jaspal K Kumar, Liang Gao, Kimberly A Kline, Markus R Wenk

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
7.2field-weighted citation impact, top 3% 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

47 citing papers in PubMed, 84 citations in OpenAlex.

  1. Article
  2. Article
  3. A two-component system signaling hub controls enterococcal membrane remodeling in response to daptomycin.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Review
  5. Genomic insights intoFrontiers in veterinary science · 2026
    Article
  6. Article
  7. Cyclodextrin derivatives that exhibitRSC medicinal chemistry · 2025
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. The Synthetic Peptide LyeTx I mn∆K, Derived fromAntibiotics (Basel, Switzerland) · 2024
    Article
  15. Profiling Antibiotic Susceptibility among DistinctAntibiotics (Basel, Switzerland) · 2023
    Article
  16. Article
  17. Article
  18. Article
  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

8 authors at 3 institutions in 1 country.

Rafi RashidSingapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, Singapore.
Amaury Cazenave-GassiotSingapore Lipidomics Incubator, National University of Singapore, Singapore, Singapore.
Iris H GaoSingapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, Singapore.
Zeus J NairSingapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, Singapore.
Jaspal K KumarSingapore Lipidomics Incubator, National University of Singapore, Singapore, Singapore.
Liang GaoSingapore Lipidomics Incubator, National University of Singapore, Singapore, Singapore.
Kimberly A KlineSingapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, Singapore.
Markus R WenkSingapore Lipidomics Incubator, National University of Singapore, Singapore, Singapore.
National University of Singapore · SGNanyang Technological University · SGSingapore Centre for Environmental Life Sciences Engineering · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Enterococcus faecalis is a Gram-positive, opportunistic, pathogenic bacterium that causes a significant number of antibiotic-resistant infections in hospitalized patients. The development of antibiotic resistance in hospital-associated pathogens is a formidable public health threat. In E. faecalis and other Gram-positive pathogens, correlations exist between lipid composition and antibiotic resistance. Resistance to the last-resort antibiotic daptomycin is accompanied by a decrease in phosphatidylglycerol (PG) levels, whereas multiple peptide resistance factor (MprF) converts anionic PG into cationic lysyl-PG via a trans-esterification reaction, providing resistance to cationic antimicrobial peptides. Unlike previous studies that relied on thin layer chromatography and spectrophotometry, we have performed liquid chromatography-tandem mass spectrometry (LC-MS/MS) directly on lipids extracted from E. faecalis, and quantified the phospholipids through multiple reaction monitoring (MRM). In the daptomycin-sensitive E. faecalis strain OG1RF, we have identified 17 PGs, 8 lysyl-PGs (LPGs), 23 cardiolipins (CL), 3 glycerophospho-diglucosyl-diacylglycerols (GPDGDAG), 5 diglucosyl-diacylglycerols (DGDAG), 3 diacylglycerols (DAGs), and 4 triacylglycerols (TAGs). We have quantified PG and shown that PG levels vary during growth of E. faecalis in vitro. We also show that two daptomycin-resistant (DapR) strains of E. faecalis have substantially lower levels of PG and LPG levels. Since LPG levels in these strains are lower, daptomycin resistance is likely due to the reduction in PG. This lipidome map is the first comprehensive analysis of membrane phospholipids and glycolipids in the important human pathogen E. faecalis, for which antimicrobial resistance and altered lipid homeostasis have been intimately linked.

Indexed as

Anti-Bacterial AgentsBiotransformationCardiolipinsChromatography, LiquidDaptomycinDiglyceridesDrug Resistance, Multiple, BacterialEnterococcus faecalisLipid MetabolismLysineMetabolomicsPhosphatidylglycerolsTandem Mass SpectrometryTriglyceridesAnti-Bacterial AgentsCardiolipinsDaptomycinDiglyceridesLysinelysylphosphatidylglycerolPhosphatidylglycerolsTriglycerides

Identifiers

PMID28423018
PMCPMC5397010
OpenAlexW2606057578

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.