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Characterizing The Role Of N Terminus Of Influenza A Nucleoprotein For Location And Viral Rnp Activity, Jared Lin
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The influenza viral ribonucleoprotein complexes (vRNPs) are responsible for viral RNA synthesis. Each vRNP is comprised of one vRNA segment, the viral RNA dependent RNA polymerase complex (RdRP), and multiple copies of nucleoprotein (NP). NP serves as scaffold in formation of vRNPs, but also regulates vRNP activity. The N-terminus of NP contains a nonconventional nuclear localization signal (NLS1) essential for initial vRNP nuclear import, but also interacts with host RNA helicases to enhance viral RNA replication in the nucleus. NP contains at least one additional NLS sequence, with bioinformatics revealing a third NLS in some NP proteins.
Published yeast-two hybrid …