HomePhosphorylation of influenza A virus NS1 at serine 205 mediates its viral polymerase-enhancing function June 1, 2022 print this article Phosphorylation of influenza A virus NS1 at serine 205 mediates its viral polymerase-enhancing function Patil et al.; J Virol. 2021 Feb 24;95(6):e02369-20.