>sp|A4GCL7|PB1F2_I43A0 Protein PB1-F2 OS=Influenza A virus GN=PB1 MGQEQDTPWILSTGHISTQKGEGGQQTPKLEHHNSTRLMGHCQKTMNQVVMPKQIVYWKQ WLSLRNPILVFLKTRVLRRWRLFSKHEWTN