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Keywords:

  • influenza A virus;
  • NS1A protein;
  • RNA-binding domain;
  • effector domain;
  • dimer;
  • resistance;
  • antiviral response

Abstract

The avian influenza A virus currently prevailing in Asia causes fatal pneumonia and multiple organ failure in birds and humans. Despite intensive research, understanding of the characteristics of influenza A virus that determine its virulence is incomplete. NS1A protein, a non-structural protein of influenza A virus, was reported to contribute to its pathogenicity and virulence. NS1A protein is a multifunctional protein that plays a significant role in resisting the host antiviral response during the influenza infection. This review briefly outlines the current knowledge on the structure and function of the NS1A protein.