ArticleScience advances2021
The structure of the actin filament uncapping complex mediated by twinfilin.
Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
What it found
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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.
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Who cites it
30 citing papers in PubMed, 46 citations in OpenAlex.
- Mechanisms of CARMIL dimerization, autoinhibition, and capping protein binding.Science advances · 2026Article
- The structure of an actin nucleus stabilized by villin.Science advances · 2025Article
- Twinfilin modulates tissue contractility through uncapping of capping protein in C. elegans.Development (Cambridge, England) · 2025Article
- Twinfilin is a nonprocessive depolymerase which synergizes with formin to dramatically accelerate actin filament uncapping by 300-fold.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- The actin filament pointed-end depolymerase Srv2/CAP depolymerizes barbed ends, displaces capping protein, and promotes formin processivity.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Regulation of actin dynamics by Twinfilin.Current opinion in cell biology · 2025Review
- Reconstitution of Arp2/3-nucleated actin assembly with proteins CP, V-1, and CARMIL.Current biology : CB · 2024Article
- Actin filament dynamics at barbed ends: New structures, new insights.Current opinion in cell biology · 2024Review
- Coordination of actin plus-end dynamics by IQGAP1, formin, and capping protein.The Journal of cell biology · 2024Article
- Coordination of actin plus-end dynamics by IQGAP1, formin, and capping protein.bioRxiv : the preprint server for biology · 2024Article
- Bsp1, a fungal CPI motif protein, regulates actin filament capping in endocytosis and cytokinesis.Molecular biology of the cell · 2024Article
- Mechanism of actin capping protein recruitment and turnover during clathrin-mediated endocytosis.The Journal of cell biology · 2024Article
- Biophysical Mechanism of Allosteric Regulation of Actin Capping Protein.Journal of molecular biology · 2023Article
- Mechanisms of actin disassembly and turnover.The Journal of cell biology · 2023Review
- Nuclear Actin Polymerization Regulates Cell Epithelial-Mesenchymal Transition.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Multicomponent regulation of actin barbed end assembly by twinfilin, formin and capping protein.Nature communications · 2023Article
- Structures of the free and capped ends of the actin filament.Science (New York, N.Y.) · 2023Article
- Cross-Platform Synaptic Network Analysis of Human Entorhinal Cortex Identifies TWF2 as a Modulator of Dendritic Spine Length.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023Article
- Multicomponent regulation of actin barbed end assembly by twinfilin, formin and capping protein.bioRxiv : the preprint server for biology · 2023Article
- Biochemical and mechanical regulation of actin dynamics.Nature reviews. Molecular cell biology · 2022Review
Corrections and comments
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Authors and funding
3 authors at 1 institution in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Uncapping of actin filaments is essential for driving polymerization and depolymerization dynamics from capping protein-associated filaments; however, the mechanisms of uncapping leading to rapid disassembly are unknown. Here, we elucidated the x-ray crystal structure of the actin/twinfilin/capping protein complex to address the mechanisms of twinfilin uncapping of actin filaments. The twinfilin/capping protein complex binds to two G-actin subunits in an orientation that resembles the actin filament barbed end. This suggests an unanticipated mechanism by which twinfilin disrupts the stable capping of actin filaments by inducing a G-actin conformation in the two terminal actin subunits. Furthermore, twinfilin disorders critical actin-capping protein interactions, which will assist in the dissociation of capping protein, and may promote filament uncapping through a second mechanism involving V-1 competition for an actin-binding surface on capping protein. The extensive interactions with capping protein indicate that the evolutionary conserved role of twinfilin is to uncap actin filaments.
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Registered trials
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.