Evidence map›Paper›PMID 32314962›Full record

ArticleeLife2020

A single power stroke by ATP binding drives substrate translocation in a heterodimeric ABC transporter.

Erich Stefan, Susanne Hofmann, Robert Tampé

Open access · goldAbstract read
In one paragraph

Article in eLife, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.5field-weighted citation impact, top 9% 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

25 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Molecular mechanism of substrate transport by human peroxisomal ABCD3.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. Article
  7. Interdomain communication in a homodimeric ABC transporter.The Journal of biological chemistry · 2024
    Article
  8. Article
  9. ABC Transporters in Bacterial Nanomachineries.International journal of molecular sciences · 2023
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
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  20. Review
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.

Erich StefanInstitute of Biochemistry, Goethe University Frankfurt, Biocenter, Germany.
Susanne HofmannInstitute of Biochemistry, Goethe University Frankfurt, Biocenter, Germany.
Robert TampéInstitute of Biochemistry, Goethe University Frankfurt, Biocenter, Germany.ORCID 0000-0002-0403-2160
Goethe University Frankfurt · DE

Funding

Deutsche Forschungsgemeinschaft SFB 807Deutsche Forschungsgemeinschaft Ta157/12-1European Commission ERC_Ad 789121European Research Council ERC_Ad 789121
6 · The paper itself

Abstract

ATP-binding cassette (ABC) transporters constitute the largest family of primary active transporters, responsible for many physiological processes and human maladies. However, the mechanism how chemical energy of ATP facilitates translocation of chemically diverse compounds across membranes is poorly understood. Here, we advance the quantitative mechanistic understanding of the heterodimeric ABC transporter TmrAB, a functional homolog of the transporter associated with antigen processing (TAP) by single-turnover analyses at single-liposome resolution. We reveal that a single conformational switch by ATP binding drives unidirectional substrate translocation. After this power stroke, ATP hydrolysis and phosphate release launch the return to the resting state, which facilitates nucleotide exchange and a new round of substrate binding and translocation. In contrast to hitherto existing steady-state assays, our single-turnover approach uncovers the power stroke in substrate translocation and the tight chemomechanical coupling in these molecular machines.

Indexed as

Models, MolecularAdenosine TriphosphateAnimalsATP-Binding Cassette TransportersBiological Transport, ActiveHumansAdenosine TriphosphateATP-Binding Cassette TransportersABC transporterbiochemistrychemical biologyconformational transitionE. colihumanmembrane proteinsmolecular biophysicsmolecular machinesmultidrug resistencepeptide transportsingle-turnover analysisstructural biologyTAPtransporter associated with antigen processing

Identifiers

PMID32314962
PMCPMC7205462
OpenAlexW3016474366

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.