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Showing 1–11 of 11 results
Advanced filters: Author: Tâm Mignot Clear advanced filters

  • The mystery of how bacteria that lack motile structures such as pili or flagella can ‘glide’ along surfaces is solved by a detailed description of the bacterial focal adhesion complex and its associated protein machinery.

    • Laura M. Faure
    • Jean-Bernard Fiche
    • Tâm Mignot
    Research
    Nature
    Volume: 539, P: 530-535

  • Mignot and colleagues present an evolutionary scenario to explain the emergence of the two distinct machines — the Agl–Glt and Agl–Nfs complexes — that are involved in motility and assembly of the spore coat inMyxococcus xanthus. They argue that elucidation of the composition and mechanism of action of these complexes will improve our understanding of the evolution of macromolecular complexes.

    • Rym Agrebi
    • Morgane Wartel
    • Tâm Mignot
    Reviews
    Nature Reviews Microbiology
    Volume: 13, P: 318-326

  • The predatory bacterium Myxococcus xanthus kills other bacteria by contact. Here, Herrou et al. show that the predator uses an extensible appendage, or pilus, that is functionalized by four distinct minor pilin complexes which work in association with a needleless type-III secretion system to kill various prey species.

    • Julien Herrou
    • Laetitia My
    • Tâm Mignot
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-17

  • Myxococcus xanthus forages and moves collectively to prey and feed on other bacterial species. Here, the authors challenge the conventional idea that during Myxococcus xanthus predation, A- and S-motilities are limited to specific forager and swarm roles and reveal a synergistic interaction between these motilities to enhance predation efficiency.

    • Sara Rombouts
    • Anna Mas
    • Marcelo Nollmann
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-12

  • In Myxococcus xanthus, directed movement is controlled by pole-to-pole oscillations of the small GTPase MglA and its GAP MglB. Here authors report the complete MglA/MglB structural cycle and uncover that MglA is a three-state GTPase that adopts an atypical GTP-bound state that is refractory to inactivation by MglB.

    • Christian Galicia
    • Sébastien Lhospice
    • Jacqueline Cherfils
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-12

  • A combination of X-ray crystallography, electron microscopy, functional assays and time-lapse fluorescence microscopy shows that a protein of previously unknown function, TssA, forms a dodecameric complex that interacts with components of the tube and sheath of the type VI secretion system of bacteria, and that it primes and coordinates biogenesis of both the tail tube and the sheath.

    • Abdelrahim Zoued
    • Eric Durand
    • Eric Cascales
    Research
    Nature
    Volume: 531, P: 59-63

  • Cell segmentation is crucial in many image analysis pipelines. This analysis compares many tools on a multimodal cell segmentation benchmark. A Transformer-based model performed best in terms of performance and general applicability.

    • Jun Ma
    • Ronald Xie
    • Bo Wang
    Research
    Nature Methods
    Volume: 21, P: 1103-1113

  • The structural model of a bacterial focal adhesion complex reveals 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, resulting in cell gliding.

    • Christian Cambillau
    • Tâm Mignot
    ResearchOpen Access
    Communications Biology
    Volume: 8, P: 1-10