>tr|Q20N18|Q20N18_9INFA Protein PB1-F2 OS=Influenza A virus GN=PB1-F2 MGQEQDIPWILSTGHISTQKGENGQQTPKLEHHNSTRLMGHCQKTMNRVVMPKQIVYWKQ WLSLRNPTLVFLKTHALKRWRLFSKHEWTS