Evidence map›Paper›PMID 26243210›Full record

ArticleNano letters2015

A Protein Rotaxane Controls the Translocation of Proteins Across a ClyA Nanopore.

Annemie Biesemans, Misha Soskine, Giovanni Maglia

Abstract read
In one paragraph

Article in Nano letters, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
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

29 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Nanopore Technology for the Application of Protein Detection.Nanomaterials (Basel, Switzerland) · 2021
    Review
  9. Article
  10. Biological Nanopores: Engineering on Demand.Life (Basel, Switzerland) · 2021
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  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

3 authors.

Annemie Biesemans *Department of Chemistry, University of Leuven, Leuven, 3001, Belgium.
Misha Soskine *Groningen Biomolecular Sciences & Biotechnology (GBB) Institute, University of Groningen, 9747 AG, Groningen, The Netherlands.
Giovanni MagliaGroningen Biomolecular Sciences & Biotechnology (GBB) Institute, University of Groningen, 9747 AG, Groningen, The Netherlands.

Funding

European Research Council 260884
6 · The paper itself

Abstract

Rotaxanes, pseudorotaxanes, and catenanes are supramolecular complexes with potential use in nanomachinery, molecular computing, and single-molecule studies. Here we constructed a protein rotaxane in which a polypeptide thread is encircled by a Cytolysin A (ClyA) nanopore and capped by two protein stoppers. The rotaxane could be switched between two states. At low negative applied potentials (<-50 mV) one of the protein stoppers resided inside the nanopore indefinitely. Under this configuration the rotaxane prevents the diffusion of protein molecules across the lipid bilayer and provides a useful platform for single-molecule analysis. High negative applied potentials (-100 mV) dismantled the interlocked rotaxane system by the forceful translocation of the protein stopper, allowing new proteins to be trapped inside or transported across the nanopore. The observed voltage threshold for the translocation of the protein stopper through the nanopore related well to the biphasic voltage dependence of the residence time measured for the freely diffusing protein stopper. We propose a model in which molecules translocate through a nanopore when the average dwell time decreases with the applied potential.

Indexed as

NanoporesEscherichia coliModels, MolecularPerforinProtein TransportRotaxanesSalmonella typhiTetrahydrofolate DehydrogenasePerforinRotaxanesTetrahydrofolate DehydrogenaseClyA nanoporeDHFRprotein translocationrotaxanevoltage-dependent residence time

Identifiers

PMID26243210
PMCPMC4606981

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Registered trials

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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.