Evidence map›Paper›PMID 34887543›Full record

ArticleCommunications biology2021

Energetics of lipid transport by the ABC transporter MsbA is lipid dependent.

Dawei Guo, Himansha Singh, Atsushi Shimoyama, Charlotte Guffick, Yakun Tang, Sam M Rowe, Timothy Noel, David R Spring, Koichi Fukase, Hendrik W van Veen

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.3field-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

13 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. Molecular mechanism of substrate transport by human peroxisomal ABCD3.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Article
  4. Article
  5. The inactivation ofiScience · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. 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

10 authors at 2 institutions in 2 countries.

Dawei GuoDepartment of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1PD, UK.
Himansha SinghDepartment of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1PD, UK.
Atsushi ShimoyamaDepartment of Chemistry, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.ORCID 0000-0003-1910-0450
Charlotte GuffickDepartment of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1PD, UK.
Yakun TangDepartment of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1PD, UK.
Sam M RoweDepartment of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.ORCID 0000-0003-4902-6685
Timothy NoelDepartment of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1PD, UK.
David R SpringDepartment of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.ORCID 0000-0001-7355-2824
Koichi FukaseDepartment of Chemistry, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan.
Hendrik W van VeenDepartment of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1PD, UK. hwv20@cam.ac.uk.ORCID 0000-0002-9658-8077
University of Cambridge · GBThe University of Osaka · JP

Funding

Biotechnology and Biological Sciences Research Council BB/R00224X/1
6 · The paper itself

Abstract

The ABC multidrug exporter MsbA mediates the translocation of lipopolysaccharides and phospholipids across the plasma membrane in Gram-negative bacteria. Although MsbA is structurally well characterised, the energetic requirements of lipid transport remain unknown. Here, we report that, similar to the transport of small-molecule antibiotics and cytotoxic agents, the flopping of physiologically relevant long-acyl-chain 1,2-dioleoyl (C18)-phosphatidylethanolamine in proteoliposomes requires the simultaneous input of ATP binding and hydrolysis and the chemical proton gradient as sources of metabolic energy. In contrast, the flopping of the large hexa-acylated (C12-C14) Lipid-A anchor of lipopolysaccharides is only ATP dependent. This study demonstrates that the energetics of lipid transport by MsbA is lipid dependent. As our mutational analyses indicate lipid and drug transport via the central binding chamber in MsbA, the lipid availability in the membrane can affect the drug transport activity and vice versa.

Indexed as

Energy MetabolismLipid MetabolismATP-Binding Cassette TransportersBacterial ProteinsBiological TransportEscherichia coliLactococcus lactisATP-Binding Cassette TransportersBacterial ProteinsMsbA protein, Bacteria

Identifiers

PMID34887543
PMCPMC8660845
OpenAlexW4200324864

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.