>sp|B4URE5|PB1F2_I06A0 Protein PB1-F2 OS=Influenza A virus GN=PB1 MGQEQDTPWILSTGHISTQKREDGQQTPKLEHRNSTRLMGHFQKTMNQVVMPKQIVYWRR WLSLRNPILVFLKTRVLKRWRLFSKHE