HM567870   Influenza A virus (A/England/421/2009(H1N1)) segment 2 polymerase PB1 (PB1) gene, complete cds; and nonfunctional PB1-F2 protein (PB1-F2) gene, complete sequence.   [Influenza A virus (A/England/421/2009(H1N1)) | 856934.4]