>tr|B1MQ50|B1MQ50_9INFA Protein PB1-F2 OS=Influenza A virus GN=PB1-F2 MEQEQDTPWTRSIEHINTQRRGNGQQTPKLEHPNSIQLMDHYPRITSRADMHKQIVCWKQ WLSSKNPTQGSLKTHVLKRWKLFSKQEWTN