Evidence map›Paper›PMID 11980707›Full record

ArticleThe EMBO journal2002

A polytopic membrane protein displays a reversible topology dependent on membrane lipid composition.

Mikhail Bogdanov, Phillip N Heacock, William Dowhan

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 112 papers.

0numbers the graph read from it
0cells of the map it votes in
112citing papers in PubMed
5.8field-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

112 citing papers in PubMed, 240 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Synthetic Lipid Biology.Chemical reviews · 2025
    Review
  9. Article
  10. Article
  11. Article
  12. Structure and function ofProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Review
  20. Review

52 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Mikhail BogdanovDepartment of Biochemistry and Molecular Biology, Medical School, University of Texas-Houston, Houston, TX 77225, USA.
Phillip N Heacock
William Dowhan
University of Houston · US

Funding

Structure and Function in Membrane ProteinsR37GM020478 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI DOWHAN, WILLIAM · 2005 to 2015
$5.4M
STRUCTURE/FUNCTION OF MEMBRANE PROTEINSR01GM020478 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI DOWHAN, WILLIAM · 1985 to 2004
$1.8M
KARYOPHERIN X, A NOVEL TRANSPORT RECEPTORF32GM020478 · NIGMS · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI PLAFKER, SCOTT M · 2000 to 2000
$38k
NIGMS NIH HHS F32 GM020478NIGMS NIH HHS GM-20478NIGMS NIH HHS R01 GM020478NIGMS NIH HHS R37 GM020478
6 · The paper itself

Abstract

To address the role of phospholipids in the topological organization of polytopic membrane proteins, the function and assembly of lactose permease (LacY) was studied in mutants of Escherichia coli lacking phosphatidylethanolamine (PE). PE is required for the proper conformation and active transport function of LacY. The N-terminal half of LacY assembled in PE-lacking cells adopts an inverted topology in which normally non-translocated domains are translocated and vice versa. Post-assembly synthesis of PE triggers a conformational change, resulting in a lipid-dependent recovery of normal conformation and topology of at least one LacY subdomain accompanied by restoration of active transport. These results demonstrate that membrane protein topology once attained can be changed in a reversible manner in response to alterations in phospholipid composition, and may be subject to post-assembly proofreading to correct misfolded structures.

Indexed as

Escherichia coli ProteinsMonosaccharide Transport ProteinsSymportersCell MembraneEscherichia coliMembrane LipidsMembrane Transport ProteinsPhosphatidylethanolaminesProtein ConformationProtein Structure, SecondaryEscherichia coli Proteinslactose permeaseLacY protein, E coliMembrane LipidsMembrane Transport ProteinsMonosaccharide Transport ProteinsPhosphatidylethanolaminesSymporters

Identifiers

PMID11980707
PMCPMC125992
OpenAlexW1968311587

What OpenQuestion holds

Textmetadata
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.