id author title date pages extension mime words sentences flesch summary cache txt cord-342291-imn7g084 Ciminski, Kevin Bats reveal the true power of influenza A virus adaptability 2020-04-16 .txt text/plain 2478 120 50 Indeed, the HA of the newly discovered Old World bat H9N2 virus binds to α2,3-sialic In contrast, the internal gene segments of the bat-derived IAVs form two outgroups that are located at a more basal position. Conventional IAVs and the bat H9N2 virus possess the surface glycoprotein neuraminidase (NA), which removes sialic acid residues from infected cells to facilitate the release of newly formed viral particles (Fig 2A) . The amazing ability of H18 to rapidly overcome the absence of a functional N11 suggests that the structure of H18 (and possibly H17) may provide a broader scope of evolutionary flexibility than that of conventional sialic acid-dependent IAVs. It is therefore tempting to speculate that bat IAV HA proteins, and in particular H18, might have the potential to adapt to novel and so far unknown entry receptors different from MHC-II (Fig 2D) . ./cache/cord-342291-imn7g084.txt ./txt/cord-342291-imn7g084.txt