JX878673   Influenza A virus (A/swine/HuBei/06/2009(H4N1)) segment 2 polymerase PB1 (PB1) and PB1-F2 protein (PB1-F2) genes, complete cds.   [Influenza A virus (A/swine/HuBei/06/2009(H4N1)) | 1237063.4]