ArticleInternational journal of molecular sciences2019
Oligomerization Affects the Ability of Human Cyclase-Associated Proteins 1 and 2 to Promote Actin Severing by Cofilins.
Article in International journal of molecular sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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.
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.
Who cites it
27 citing papers in PubMed, 34 citations in OpenAlex.
- Mechanisms of disassembly at the actin filament pointed and barbed ends.Science advances · 2026Article
- High Expression of Actin Binding Proteins Predicts Hematogenous Metastases in Non-Small Cell Lung Cancer.Asian Pacific journal of cancer prevention : APJCP · 2025Article
- Nano-Scale Video Imaging of Motility Machinery by High-Speed Atomic Force Microscopy.Biomolecules · 2025Review
- 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
- Phalloidin and DNase I-bound F-actin pointed end structures reveal principles of filament stabilization and disassembly.Nature communications · 2024Article
- Mechanisms of actin disassembly and turnover.The Journal of cell biology · 2023Review
- Cyclase-associated protein interacts with actin filament barbed ends to promote depolymerization and formin displacement.The Journal of biological chemistry · 2023Article
- Dynamic remodeling of actin networks by cyclase-associated protein and CAP-Abp1 complexes.Current biology : CB · 2023Article
- Actin Bundles Dynamics and Architecture.Biomolecules · 2023Review
- A pilot study of the relative number of circulating tumor cells and leukocytes containing actin-binding proteins in head and neck cancer patients.Journal of biomedical research · 2022Article
- Unraveling the structures, functions and mechanisms of epithelial membrane protein family in human cancers.Experimental hematology & oncology · 2022Review
- Article
- Bacterial Nucleotidyl Cyclases Activated by Calmodulin or Actin in Host Cells: Enzyme Specificities and Cytotoxicity Mechanisms Identified to Date.International journal of molecular sciences · 2022Review
- Allosteric regulation controls actin-bundling properties of human plastins.Nature structural & molecular biology · 2022Article
- The Mechanisms of Thin Filament Assembly and Length Regulation in Muscles.International journal of molecular sciences · 2022Review
- Magic angle spinning NMR structure of human cofilin-2 assembled on actin filaments reveals isoform-specific conformation and binding mode.Nature communications · 2022Article
- Review
- Redefining actin dynamics of the pointed-end complex in striated muscle.Trends in cell biology · 2021Article
- CAP1 binds and activates adenylyl cyclase in mammalian cells.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Human Costars Family Protein ABRACL Modulates Actin Dynamics and Cell Migration and Associates with Tumorigenic Growth.International journal of molecular sciences · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
Actin-depolymerizing factor (ADF)/cofilins accelerate actin turnover by severing aged actin filaments and promoting the dissociation of actin subunits. In the cell, ADF/cofilins are assisted by other proteins, among which cyclase-associated proteins 1 and 2 (CAP1,2) are particularly important. The N-terminal half of CAP has been shown to promote actin filament dynamics by enhancing ADF-/cofilin-mediated actin severing, while the central and C-terminal domains are involved in recharging the depolymerized ADP-G-actin/cofilin complexes with ATP and profilin. We analyzed the ability of the N-terminal fragments of human CAP1 and CAP2 to assist human isoforms of "muscle" (CFL2) and "non-muscle" (CFL1) cofilins in accelerating actin dynamics. By conducting bulk actin depolymerization assays and monitoring single-filament severing by total internal reflection fluorescence (TIRF) microscopy, we found that the N-terminal domains of both isoforms enhanced cofilin-mediated severing and depolymerization at similar rates. According to our analytical sedimentation and native mass spectrometry data, the N-terminal recombinant fragments of both human CAP isoforms form tetramers. Replacement of the original oligomerization domain of CAPs with artificial coiled-coil sequences of known oligomerization patterns showed that the activity of the proteins is directly proportional to the stoichiometry of their oligomerization; i.e., tetramers and trimers are more potent than dimers, which are more effective than monomers. Along with higher binding affinities of the higher-order oligomers to actin, this observation suggests that the mechanism of actin severing and depolymerization involves simultaneous or consequent and coordinated binding of more than one N-CAP domain to F-actin/cofilin complexes.
Indexed as
Identifiers
What OpenQuestion holds
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.