Skip to main content

Table 2 Positively selected sites in neuraminidase from viruses from different clusters

From: Positive selection on hemagglutinin and neuraminidase genes of H1N1 influenza viruses

Dataset Description Number of sequences Length of alignment (bp) Number of sites under positive selection Positively selected sites1
     SLAC FEL SLAC FEL
2.1 Avian strains 137 1368 0 0   
2.2 North American swine strains 171 1368 3 7 46TG, 396B,453T 46TG,53T,75,127,285,339B,453T
2.3 Eurasian swine strains 92 1368 0 1   75
2.4 Seasonal human strains 1735 1371 5 6 84,151,222,275A,382 84,151,275A,344B,365BG,382
2.5 Pandemic 2009 human strains 1397 1368 0 2   35,453T
  1. 1In this column, B indicates that the site lies in the B-cell antigenic regions [21]. G means that it is a potential glycosylation site. T indicates that the site lies in the T-cell antigenic regions [19]. We start numbering from the amino acids MNPN. A means that the site is associated with drug-resistance [7].