Evidence map›Paper›PMID 29928893›Full record

ArticleJournal of molecular biology2018

Species-Specific Functions of Twinfilin in Actin Filament Depolymerization.

Denise M Hilton, Rey M Aguilar, Adam B Johnston, Bruce L Goode

Open access · hybridAbstract read
In one paragraph

Article in Journal of molecular biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.8field-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

32 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Regulation of actin dynamics by Twinfilin.Current opinion in cell biology · 2025
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Mechanisms of actin disassembly and turnover.The Journal of cell biology · 2023
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Drebrin, an actin-binding protein, is required for lens morphogenesis and growth.Developmental dynamics : an official publication of the American Association of Anatomists · 2021
    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

4 authors at 1 institution in 1 country.

Denise M HiltonDepartment of Biology, Rosenstiel Basic Medical Science Research Center, Brandeis University, Waltham, MA 02454, USA.
Rey M AguilarDepartment of Biology, Rosenstiel Basic Medical Science Research Center, Brandeis University, Waltham, MA 02454, USA.
Adam B JohnstonDepartment of Biology, Rosenstiel Basic Medical Science Research Center, Brandeis University, Waltham, MA 02454, USA.
Bruce L GoodeDepartment of Biology, Rosenstiel Basic Medical Science Research Center, Brandeis University, Waltham, MA 02454, USA. Electronic address: goode@brandeis.edu.
Brandeis University · US

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 R01 GM063691NIGMS NIH HHS T32 GM007122
6 · The paper itself

Abstract

Twinfilin is a highly conserved member of the actin depolymerization factor homology (ADF-H) protein superfamily, which also includes ADF/Cofilin, Abp1/Drebrin, GMF, and Coactosin. Twinfilin has a unique molecular architecture consisting of two ADF-H domains joined by a linker and followed by a C-terminal tail. Yeast Twinfilin, in conjunction with yeast cyclase-associated protein (Srv2/CAP), increases the rate of depolymerization at both the barbed and pointed ends of actin filaments. However, it has remained unclear whether these activities extend to Twinfilin homologs in other species. To address this, we purified the three mouse Twinfilin isoforms (mTwf1, mTwf2a, mTwf2b) and mouse CAP1, and used total internal reflection fluorescence microscopy assays to study their effects on filament disassembly. Our results show that all three mouse Twinfilin isoforms accelerate barbed end depolymerization similar to yeast Twinfilin, suggesting that this activity is evolutionarily conserved. In striking contrast, mouse Twinfilin isoforms and CAP1 failed to induce rapid pointed end depolymerization. Using chimeras, we show that the yeast-specific pointed end depolymerization activity is specified by the C-terminal ADF-H domain of yeast Twinfilin. In addition, Tropomyosin decoration of filaments failed to impede depolymerization by yeast and mouse Twinfilin and Srv2/CAP, but inhibited Cofilin severing. Together, our results indicate that Twinfilin has conserved functions in regulating barbed end dynamics, although its ability to drive rapid pointed end depolymerization appears to be species-specific. We discuss the implications of this work, including that pointed end depolymerization may be catalyzed by different ADF-H family members in different species.

Indexed as

Protein MultimerizationActin CytoskeletonAnimalsCytoskeletonDestrinMiceMicrofilament ProteinsProtein Interaction Domains and MotifsProtein-Tyrosine KinasesDestrinMicrofilament ProteinsProtein-Tyrosine KinasesTWF1 protein, humanactinADFADF-H domainCofilindepolymerization

Identifiers

PMID29928893
PMCPMC6109970
OpenAlexW2808743852

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.