Evidence map›Paper›PMID 23474543›Full record

ArticleNature nanotechnology2013

Multistep protein unfolding during nanopore translocation.

David Rodriguez-Larrea, Hagan Bayley

Abstract read
In one paragraph

Article in Nature nanotechnology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 114 papers.

0numbers the graph read from it
0cells of the map it votes in
114citing papers in PubMed
18.4field-weighted citation impact, top 1% 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

114 citing papers in PubMed, 307 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Regulation of Protein Transport in Functionalized PET Nanopores.The journal of physical chemistry. B · 2025
    Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Single-Molecule Electrical Profiling of Peptides and Proteins.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Electro-Osmotic Flow Generation via a Sticky Ion Action.bioRxiv : the preprint server for biology · 2023
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

54 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

2 authors at 1 institution in 1 country.

David Rodriguez-LarreaDepartment of Chemistry, University of Oxford, Oxford OX1 3TA, UK.
Hagan Bayley
University of Oxford · GB

Funding

Single-Molecule DNA Sequencing with Engineered NanoporesR01HG003709 · NHGRI · SCRIPPS RESEARCH INSTITUTE, THE · PI GHADIRI, M. REZA · 2005 to 2017
$13.2M
NHGRI NIH HHS R01 HG003709
6 · The paper itself

Abstract

Cells are divided into compartments and separated from the environment by lipid bilayer membranes. Essential molecules are transported back and forth across the membranes. We have investigated how folded proteins use narrow transmembrane pores to move between compartments. During this process, the proteins must unfold. To examine co-translocational unfolding of individual molecules, we tagged protein substrates with oligonucleotides to enable potential-driven unidirectional movement through a model protein nanopore, a process that differs fundamentally from extension during force spectroscopy measurements. Our findings support a four-step translocation mechanism for model thioredoxin substrates. First, the DNA tag is captured by the pore. Second, the oligonucleotide is pulled through the pore, causing local unfolding of the C terminus of the thioredoxin adjacent to the pore entrance. Third, the remainder of the protein unfolds spontaneously. Finally, the unfolded polypeptide diffuses through the pore into the recipient compartment. The unfolding pathway elucidated here differs from those revealed by denaturation experiments in solution, for which two-state mechanisms have been proposed.

Indexed as

NanoporesProtein UnfoldingAnimalsBacterial ToxinsElectricityEscherichia coliHemolysin ProteinsKineticsLipid BilayersModels, MolecularMutationOligonucleotidesRabbitsThioredoxinsUreaBacterial ToxinsHemolysin ProteinsLipid BilayersOligonucleotidesstaphylococcal alpha-toxinThioredoxinsUrea

Identifiers

PMID23474543
PMCPMC4830145
OpenAlexW2047410075

What OpenQuestion holds

Textmetadata
LicenceTDM
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.