>sp|P0C5V8|PB1F2_I03A1 Protein PB1-F2 OS=Influenza A virus GN=PB1 MEQGQDTPWTQSTEHTNIQKRGSGQQTQRLEHPNSTRLMDHYLRIMSPVGMHKQIVYWKQ WLSLKNPTQESLKTRVLKRWKLFNKQEWIN