FJ520043   Influenza A virus (A/northern pintail/California/44291-447/2007(H11N2)) segment 2 polymerase PB1 (PB1) gene, partial cds; and PB1-F2 protein (PB1-F2) gene, complete cds.   [Influenza A virus (A/northern pintail/California/44291-447/2007(H11N2)) | 579439.4]