>sp|A4U6W1|PB1F2_I45A0 Protein PB1-F2 OS=Influenza A virus GN=PB1 MGQEQDIPWILSTGHISTQKGENGQQTPKLEHHNSTRLMGHCQKTMNRVVMPKQIVYWKQ WLSLRNPTLVFLKTHALKRWRLFSKHEWTS