Evidence map›Paper›PMID 32494739›Full record

ArticleScience advances2020

Direct observation of a coil-to-helix contraction triggered by vinculin binding to talin.

Rafael Tapia-Rojo, Alvaro Alonso-Caballero, Julio M Fernandez

Abstract read
In one paragraph

Article in Science advances, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing 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

27 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Biphasic mechanochemistry of single-chain polymerization.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Allosteric activation of vinculin by talin.Nature communications · 2023
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Protein-Protein Interaction Prediction for Targeted Protein Degradation.International journal of molecular sciences · 2022
    Article
  17. Article
  18. Article
  19. ATP allosterically stabilizes integrin-linked kinase for efficient force generation.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  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.

Rafael Tapia-RojoDepartment of Biological Sciences, Columbia University, New York, NY 10027, USA.ORCID 0000-0002-9460-2859
Alvaro Alonso-CaballeroDepartment of Biological Sciences, Columbia University, New York, NY 10027, USA.ORCID 0000-0003-0284-2562
Julio M FernandezDepartment of Biological Sciences, Columbia University, New York, NY 10027, USA.ORCID 0000-0002-1711-0711

Funding

Protein dynamics under forceR35GM129962 · NIGMS · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI FERNANDEZ, JULIO M · 2019 to 2020
$727k
NIGMS NIH HHS R35 GM129962
6 · The paper itself

Abstract

Vinculin binds unfolded talin domains in focal adhesions, which recruits actin filaments to reinforce the mechanical coupling of this organelle. However, it remains unknown how this interaction is regulated and its impact on the force transmission properties of this mechanotransduction pathway. Here, we use magnetic tweezers to measure the interaction between vinculin head and the talin R3 domain under physiological forces. For the first time, we resolve individual binding events as a short contraction of the unfolded talin polypeptide caused by the reformation of the vinculin-binding site helices, which dictates a biphasic mechanism that regulates this interaction. Force favors vinculin binding by unfolding talin and exposing the vinculin-binding sites; however, the coil-to-helix contraction introduces an energy penalty that increases with force, defining an optimal binding regime. This mechanism implies that the talin-vinculin-actin association could operate as a negative feedback mechanism to stabilize force on focal adhesions.

Identifiers

PMID32494739
PMCPMC7244311

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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.