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Showing 1–9 of 9 results
Advanced filters: Author: Bertram Daum Clear advanced filters

  • The cells of many archaeal species display surface appendages that closely resemble bacterial Type IV pili (T4P). Here, Gaines et al. present a cryoEM structure of the archaeal adhesive pilus from Sulfolobus acidocaldarius, showing that the structure of the component subunit follows the canonical T4P blueprint but adopts three distinct conformations within the pilus.

    • Matthew C. Gaines
    • Shamphavi Sivabalasarma
    • Bertram Daum
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-13

  • The model archaeon Sulfolobus acidocaldarius produces several protein filaments with specialised functions, including flagellum-like archaella, Aap pili, and adhesive threads. Here, the authors describe high-resolution structures and distinct glycosylation patterns for the three filaments, and present an integrated model of the filaments in the context of the S-layer.

    • Matthew C. Gaines
    • Michail N. Isupov
    • Bertram Daum
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-16

  • In this work, the authors report a system for production of short versions of a filamentous phage enables the structure to be determined by cryo-electron microscopy. Structure combined with mutagenesis allows the identification of phage domains that are important in bacterial attack and for release of new viral progeny.

    • Rebecca Conners
    • Rayén Ignacia León-Quezada
    • Vicki A. M. Gold
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-15

  • Pili are filamentous appendages on the surface of bacteria and archaea, and play roles in multiple processes such as adhesion, motility and horizontal gene transfer. Here, Gaines et al. describe the structure of a new type of pilus, termed ‘thread’, from the model archaeaon Sulfolobus acidocaldarius.

    • Matthew C. Gaines
    • Michail N. Isupov
    • Bertram Daum
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-13

  • The archaellum is a molecular machine used by archaea to swim, consisting of an intracellular motor that drives the rotation of an extracellular filament composed of multiple copies of proteins named archaellins. Here, the authors use electron cryo-microscopy to elucidate the structure of an archaellum, and find that the filament is composed of two alternating archaellins.

    • Lavinia Gambelli
    • Michail N. Isupov
    • Bertram Daum
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-11

  • New virions of Ff bacteriophages are extruded from the host cell via the channel built from phage protein pIV, homologous to bacterial secretins. Here, the authors report the structure of this channel from the f1 filamentous bacteriophage and propose its use as an adjuvant to increase the uptake and efficacy of antibiotics.

    • Rebecca Conners
    • Mathew McLaren
    • Vicki A. M. Gold
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-14

  • Type IV pili are flexible filaments on the surface of bacteria, consisting of a helical assembly of pilin proteins. Here, Neuhaus et al. show that the bacterium Thermus thermophilus produces two forms of type IV pilus, differing in structure, protein composition, and function.

    • Alexander Neuhaus
    • Muniyandi Selvaraj
    • Vicki A. M. Gold
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-13