A barbed end interference mechanism reveals how capping protein promotes nucleation in branched actin networks

The assembly of branched actin networks depends on the heterodimeric capping protein CP/CapZ. Combining cryoEM, in vitro reconstitution and cell biological assays, the authors show that CP not only prevents actin filament elongation but also selectively masks actin filament ends to promote nucleatio...

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Main Authors: Johanna Funk, Felipe Merino, Matthias Schaks, Klemens Rottner, Stefan Raunser, Peter Bieling
Format: Article
Language:English
Published: Nature Portfolio 2021-09-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-021-25682-5
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author Johanna Funk
Felipe Merino
Matthias Schaks
Klemens Rottner
Stefan Raunser
Peter Bieling
author_facet Johanna Funk
Felipe Merino
Matthias Schaks
Klemens Rottner
Stefan Raunser
Peter Bieling
author_sort Johanna Funk
collection DOAJ
description The assembly of branched actin networks depends on the heterodimeric capping protein CP/CapZ. Combining cryoEM, in vitro reconstitution and cell biological assays, the authors show that CP not only prevents actin filament elongation but also selectively masks actin filament ends to promote nucleation.
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spelling doaj.art-0538e02cfebe46a795c981704bc207032022-12-21T22:55:03ZengNature PortfolioNature Communications2041-17232021-09-0112111710.1038/s41467-021-25682-5A barbed end interference mechanism reveals how capping protein promotes nucleation in branched actin networksJohanna Funk0Felipe Merino1Matthias Schaks2Klemens Rottner3Stefan Raunser4Peter Bieling5Department of Systemic Cell Biology, Max Planck Institute of Molecular PhysiologyDepartment of Structural Biochemistry, Max Planck Institute of Molecular PhysiologyDivision of Molecular Cell Biology, Zoological Institute, Technische Universität BraunschweigDivision of Molecular Cell Biology, Zoological Institute, Technische Universität BraunschweigDepartment of Structural Biochemistry, Max Planck Institute of Molecular PhysiologyDepartment of Systemic Cell Biology, Max Planck Institute of Molecular PhysiologyThe assembly of branched actin networks depends on the heterodimeric capping protein CP/CapZ. Combining cryoEM, in vitro reconstitution and cell biological assays, the authors show that CP not only prevents actin filament elongation but also selectively masks actin filament ends to promote nucleation.https://doi.org/10.1038/s41467-021-25682-5
spellingShingle Johanna Funk
Felipe Merino
Matthias Schaks
Klemens Rottner
Stefan Raunser
Peter Bieling
A barbed end interference mechanism reveals how capping protein promotes nucleation in branched actin networks
Nature Communications
title A barbed end interference mechanism reveals how capping protein promotes nucleation in branched actin networks
title_full A barbed end interference mechanism reveals how capping protein promotes nucleation in branched actin networks
title_fullStr A barbed end interference mechanism reveals how capping protein promotes nucleation in branched actin networks
title_full_unstemmed A barbed end interference mechanism reveals how capping protein promotes nucleation in branched actin networks
title_short A barbed end interference mechanism reveals how capping protein promotes nucleation in branched actin networks
title_sort barbed end interference mechanism reveals how capping protein promotes nucleation in branched actin networks
url https://doi.org/10.1038/s41467-021-25682-5
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