Virus HA (H3 numbering) HA (H3 numbering) HA (H3 numbering) HA (H3 numbering) HA (H3 numbering) HA (H3 numbering) HA (H3 numbering) HA (H3 numbering) HA (H3 numbering) HA (H3 numbering) PB2 PB2 PB1 PA NP
Cleavage site 135 160 102 140 145 157 186 226 228 627 701 368 356 286&437
Re-2 PEVPKGR↓GLF V A F R S N G Q G / / / / /
BJ3426 PEVPKRKRTAR↓GLF T T V K P D V Q G E D V R A&T
SX1616 PEVPKRKRTAR↓GLF T T V K P D V Q G E D V R A&T