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restriction

  • Open Access
    Mutations Conferring Increased Sensitivity to Tripartite Motif 22 Restriction Accumulated Progressively in the Nucleoprotein of Seasonal Influenza A (H1N1) Viruses between 1918 and 2009
    Research Article | Host-Microbe Biology
    Mutations Conferring Increased Sensitivity to Tripartite Motif 22 Restriction Accumulated Progressively in the Nucleoprotein of Seasonal Influenza A (H1N1) Viruses between 1918 and 2009

    We have uncovered that long-term circulation of seasonal influenza A viruses (IAV) in the human population resulted in the progressive acquisition of increased sensitivity to a component of the innate immune response: the type I interferon-inducible TRIM22 protein, which acts as a restriction factor by inducing the polyubiquitination of the IAV nucleoprotein (NP). We show that four arginine residues present in the NP of the 1918 H1N1...

    Isabel Pagani, Andrea Di Pietro, Alexandra Oteiza, Michela Ghitti, Nadir Mechti, Nadia Naffakh, Elisa Vicenzi
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