Evidence map›Paper›PMID 26458246›Full record

ArticleNature cell biology2015

High-speed depolymerization at actin filament ends jointly catalysed by Twinfilin and Srv2/CAP.

Adam B Johnston, Agnieszka Collins, Bruce L Goode

Abstract read
In one paragraph

Article in Nature cell biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing 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

81 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Regulation of actin dynamics by Twinfilin.Current opinion in cell biology · 2025
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Mechanisms of actin disassembly and turnover.The Journal of cell biology · 2023
    Review

21 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.

Adam B JohnstonDepartment of Biology, Rosenstiel Basic Medical Science Research Center, Brandeis University, Waltham, Massachusetts 02454, USA.
Agnieszka CollinsDepartment of Biology, Rosenstiel Basic Medical Science Research Center, Brandeis University, Waltham, Massachusetts 02454, USA.
Bruce L GoodeDepartment of Biology, Rosenstiel Basic Medical Science Research Center, Brandeis University, Waltham, Massachusetts 02454, USA.

Funding

MECHNISMS REGULATING ACTIN ASSEMBLYR01GM063691 · NIGMS · BRANDEIS UNIVERSITY · PI GOODE, BRUCE L · 2002 to 2019
$7.5M
GENETIC AND BIOCHEMICAL MECHANISMS OF REGULATIONT32GM007122 · NIGMS · BRANDEIS UNIVERSITY · PI LOVETT, SUSAN THOMAS · 1985 to 2020
$7.5M
NIGMS NIH HHS GM063691NIGMS NIH HHS R01 GM063691NIGMS NIH HHS T32 GM007122
6 · The paper itself

Abstract

Purified actin filaments depolymerize slowly, and cytosolic conditions strongly favour actin assembly over disassembly, which has left our understanding of how actin filaments are rapidly turned over in vivo incomplete. One mechanism for driving filament disassembly is severing by factors such as Cofilin. However, even after severing, pointed-end depolymerization remains slow and unable to fully account for observed rates of actin filament turnover in vivo. Here we describe a mechanism by which Twinfilin and Cyclase-associated protein work in concert to accelerate depolymerization of actin filaments by 3-fold and 17-fold at their barbed and pointed ends, respectively. This mechanism occurs even under assembly conditions, allowing reconstitution and direct visualization of individual filaments undergoing tunable, accelerated treadmilling. Further, we use specific mutations to demonstrate that this activity is critical for Twinfilin function in vivo. These findings fill a major gap in our knowledge of cellular disassembly mechanisms, and suggest that depolymerization and severing may be deployed separately or together to control the dynamics and architecture of distinct actin networks.

Indexed as

Actin CytoskeletonActinsAdaptor Proteins, Signal TransducingAnimalsCatalysisCofilin 1Cytoskeletal ProteinsHumansMicrofilament ProteinsMicroscopy, Electron, TransmissionMicroscopy, FluorescenceMutationPolymerizationRabbitsSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsActinsAdaptor Proteins, Signal TransducingCOF1 protein, S cerevisiaeCofilin 1Cytoskeletal ProteinsMicrofilament ProteinsSaccharomyces cerevisiae ProteinsSRV2 protein, S cerevisiaeTWF1 protein, S cerevisiae

Identifiers

PMID26458246
PMCPMC4808055

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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.