Evidence map›Paper›PMID 37414761›Full record

ArticleNature communications2023

Multicomponent regulation of actin barbed end assembly by twinfilin, formin and capping protein.

Heidi Ulrichs, Ignas Gaska, Shashank Shekhar

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

22 citing papers in PubMed, 25 citations in OpenAlex.

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

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Heidi Ulrichs *Department of Physics, Emory University, Atlanta, GA, 30322, USA.
Ignas Gaska *Department of Physics, Emory University, Atlanta, GA, 30322, USA.ORCID 0009-0005-2569-0751
Shashank ShekharDepartment of Physics, Emory University, Atlanta, GA, 30322, USA. shekhar@emory.edu.ORCID 0000-0003-1494-0151
Emory University · US

Funding

Training Program in Biochemistry, Cell and Molecular BiologyT32GM135060 · NIGMS · EMORY UNIVERSITY · PI Lawrence H. Boise, ANITA H. CORBETT · 2020 to 2026
$2.8M
MULTICOMPONENT MECHANOCHEMICAL REGULATION OF ACTIN FILAMENT END DYNAMICSR35GM143050 · NIGMS · EMORY UNIVERSITY · PI Shashank Shekhar · 2021 to 2026
$2.7M
NIGMS NIH HHS R35 GM143050NIGMS NIH HHS T32 GM135060
6 · The paper itself

Abstract

Cells control actin assembly by regulating reactions at actin filament barbed ends. Formins accelerate elongation, capping protein (CP) arrests growth and twinfilin promotes depolymerization at barbed ends. How these distinct activities get integrated within a shared cytoplasm is unclear. Using microfluidics-assisted TIRF microscopy, we find that formin, CP and twinfilin can simultaneously bind filament barbed ends. Three‑color, single-molecule experiments reveal that twinfilin cannot bind barbed ends occupied by formin unless CP is present. This trimeric complex is short-lived (~1 s), and results in dissociation of CP by twinfilin, promoting formin-based elongation. Thus, the depolymerase twinfilin acts as a pro-formin pro-polymerization factor when both CP and formin are present. While one twinfilin binding event is sufficient to displace CP from the barbed-end trimeric complex, ~31 twinfilin binding events are required to remove CP from a CP-capped barbed end. Our findings establish a paradigm where polymerases, depolymerases and cappers together tune actin assembly.

Indexed as

Actin CytoskeletonActinsForminsActinsFormins

Identifiers

PMID37414761
PMCPMC10326068
OpenAlexW4383346740

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.