Structural model of a bacterial focal adhesion complex

Abstract Cell movement on surfaces relies on focal adhesion complexes (FAs), which connect cytoskeletal motors to the extracellular matrix to produce traction forces. The soil bacterium Myxococcus xanthus uses a bacterial FA (bFA), for surface movement and predation. The bFA system, known as Agl-Glt...

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Main Authors: Christian Cambillau, Tâm Mignot
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Communications Biology
Online Access:https://doi.org/10.1038/s42003-025-07550-w
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author Christian Cambillau
Tâm Mignot
author_facet Christian Cambillau
Tâm Mignot
author_sort Christian Cambillau
collection DOAJ
description Abstract Cell movement on surfaces relies on focal adhesion complexes (FAs), which connect cytoskeletal motors to the extracellular matrix to produce traction forces. The soil bacterium Myxococcus xanthus uses a bacterial FA (bFA), for surface movement and predation. The bFA system, known as Agl-Glt, is a complex network of at least 17 proteins spanning the cell envelope. Despite understanding the system dynamics, its molecular structure and protein interactions remain unclear. In this study, we utilize AlphaFold to generate models based on the known interactions and dynamics of gliding motility proteins. This approach provides us with a comprehensive view of the interactions across the entire complex. Our structural insights show the connection of essential functional modules throughout the cell envelope and offer an inspiring view of the force transduction mechanism from the inner molecular motor to the exterior of the cell.
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spelling doaj-art-2eea7bf4ee314296aaca0a6f2656c00d2025-01-26T12:48:18ZengNature PortfolioCommunications Biology2399-36422025-01-018111010.1038/s42003-025-07550-wStructural model of a bacterial focal adhesion complexChristian Cambillau0Tâm Mignot1Laboratoire d’Ingénierie des Systèmes Macromoléculaires (LISM), Institut de Microbiologie, Bioénergies et Biotechnologie (IMM), Aix-Marseille Université—CNRS, UMR 7255Laboratoire de Chimie Bactérienne (LCB) Institut de Microbiologie, Bioénergies et Biotechnologie (IMM), Aix-Marseille Université—CNRS, UMR 7283Abstract Cell movement on surfaces relies on focal adhesion complexes (FAs), which connect cytoskeletal motors to the extracellular matrix to produce traction forces. The soil bacterium Myxococcus xanthus uses a bacterial FA (bFA), for surface movement and predation. The bFA system, known as Agl-Glt, is a complex network of at least 17 proteins spanning the cell envelope. Despite understanding the system dynamics, its molecular structure and protein interactions remain unclear. In this study, we utilize AlphaFold to generate models based on the known interactions and dynamics of gliding motility proteins. This approach provides us with a comprehensive view of the interactions across the entire complex. Our structural insights show the connection of essential functional modules throughout the cell envelope and offer an inspiring view of the force transduction mechanism from the inner molecular motor to the exterior of the cell.https://doi.org/10.1038/s42003-025-07550-w
spellingShingle Christian Cambillau
Tâm Mignot
Structural model of a bacterial focal adhesion complex
Communications Biology
title Structural model of a bacterial focal adhesion complex
title_full Structural model of a bacterial focal adhesion complex
title_fullStr Structural model of a bacterial focal adhesion complex
title_full_unstemmed Structural model of a bacterial focal adhesion complex
title_short Structural model of a bacterial focal adhesion complex
title_sort structural model of a bacterial focal adhesion complex
url https://doi.org/10.1038/s42003-025-07550-w
work_keys_str_mv AT christiancambillau structuralmodelofabacterialfocaladhesioncomplex
AT tammignot structuralmodelofabacterialfocaladhesioncomplex