Three mutations switch H7N9 influenza to human-type receptor specificity.
de Vries, R.P., Peng, W., Grant, O.C., Thompson, A.J., Zhu, X., Bouwman, K.M., de la Pena, A.T.T., van Breemen, M.J., Ambepitiya Wickramasinghe, I.N., de Haan, C.A.M., Yu, W., McBride, R., Sanders, R.W., Woods, R.J., Verheije, M.H., Wilson, I.A., Paulson, J.C.(2017) PLoS Pathog 13: e1006390-e1006390
- PubMed: 28617868 
- DOI: 10.1371/journal.ppat.1006390
- Primary Citation of Related Structures:  
5VJK, 5VJL, 5VJM - PubMed Abstract: 
The avian H7N9 influenza outbreak in 2013 resulted from an unprecedented incidence of influenza transmission to humans from infected poultry. The majority of human H7N9 isolates contained a hemagglutinin (HA) mutation (Q226L) that has previously been associated with a switch in receptor specificity from avian-type (NeuAcα2-3Gal) to human-type (NeuAcα2-6Gal), as documented for the avian progenitors of the 1957 (H2N2) and 1968 (H3N2) human influenza pandemic viruses ...