>sp|Q288Y7|PB1F2_I77A4 Protein PB1-F2 OS=Influenza A virus GN=PB1 MEQEQDTPWTQSTEHINIQKKGSGQQTQRLGRPNSTQLMDHYLRIMSQADMHKQTVSWKQ WLSLKNPTQGFLKTRALKRWKSFNKQGWTN