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Showing 1–7 of 7 results
Advanced filters: Author: Nicholas Sofos Clear advanced filters

  • Marín-Arraiza and colleagues report the cryo-EM structures of an extracellular contractile injection system from Photorhabdus luminescens in extended and contracted states, providing structural insight into its architecture and contraction mechanism.

    • Leyre Marín-Arraiza
    • Aritz Roa-Eguiara
    • Nicholas M. I. Taylor
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-15

  • Zorya uses a membrane-anchored H+-driven rotary motor ZorAB to sense phage invasion and to recruit the intracellular effectors ZorC and ZorD that execute anti-phage defence.

    • Haidai Hu
    • Philipp F. Popp
    • Nicholas M. I. Taylor
    ResearchOpen Access
    Nature
    Volume: 639, P: 1093-1101

  • Here, authors analyse the structural organisation of the large carbon-phosphorus lyase enzyme from bacteria using electron microscopy and discover that it contains two ATP-binding cassette dimers of PhnK and PhnL and opens upon ATP hydrolysis.

    • Søren K. Amstrup
    • Sui Ching Ong
    • Ditlev E. Brodersen
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-12

  • The Class 2 family of CRISPR nucleases named Cas12j, which shares only low sequence identity with other CRISPR nucleases was recently identified in the biggiephage clade of phages. Here, the authors present the cryo-EM structure of a functional Cas12j3−crRNA complex in the post-catalytic state and discuss Cas12j3 PAM recognition, hybrid stabilisation and the activation mechanism.

    • Arturo Carabias
    • Anders Fuglsang
    • Guillermo Montoya
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-12

  • Type III CRISPR-Cas RNases from the Csm and Csx families are activated by cyclic oligoadenylates (cOA). Here the authors present the cOA bound Sulfolobus islandicus Csx1 structure, which forms a hexamer and reveal an allosteric mechanism for the activation of Csx1 RNase.

    • Rafael Molina
    • Stefano Stella
    • Guillermo Montoya
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-14