FSF site designations of critical sites from closely related IFV strains circulating before SAEs. All AA sites listed in this table became N-linked glycosylation sequons in the strains specified in the "SAE Strain" column. Phylogenetically related IFV strains circulating before the SAE have been selected and the FSF designation of the site that would become glycosylated is presented in the rightmost column. Related strains were selected if they predated the strain in which the glycosylation sequon arose and were the closest preexisting relative on the generated phylogenetic tree shown in Fig 3.

FSF site designations of critical sites from closely related IFV strains circulating before SAEs. All AA sites listed in this table became N-linked glycosylation sequons in the strains specified in the "SAE Strain" column. Phylogenetically related IFV strains circulating before the SAE have been selected and the FSF designation of the site that would become glycosylated is presented in the rightmost column. Related strains were selected if they predated the strain in which the glycosylation sequon arose and were the closest preexisting relative on the generated phylogenetic tree shown in Fig 3.