>sp|P0C5V9|PB1F2_I05A1 Protein PB1-F2 OS=Influenza A virus GN=PB1 MERGQDTPWTQSTEHTNIQKRGSGQQTQRLEHPNSTRLMDRYLRIMSPVGMHKQIVYWKQ WLSLKIPTQGSLKTRVLKRWKLFNKPEWIN