>sp|P16504|RDRP_I73A4 RNA-directed RNA polymerase catalytic subunit OS=Influenza A virus GN=PB1 MDVNPTLLFLKVPAQNAISTTFPYTGDPPYSHGTGTGYTMDTVNRTHQYSEKGKWTTNTE IGAPQLNPIDGPLPEDNEPSGYAQTDCVLEAMASLEESHPGIFENSCLETMEVVQQTRVD KLTQGRQTYDWTLNRNQPAATALANTIEVFRSNDLTSNESGRLMDFLKDVMESMNKEEME ITTHFQRKRRVRDNMTKKMVTQRTIGKKKQRLNRKSYLIRALTLNTMTKDAERGKLKRRA IATPGMQIRGFVYFVETLARRICEKLEQSGLPVGGNEKKAKLANVVRKMMTNSQDTELSF TITGDNTKWNENQNPRMFLAMITYITRNQPEWFRNVLSLAPIMFSNKMARLGKGYMFESK SMKLRTQIPAEMLASIDLKYFNDSTKKKIEKIRPLLIDGTASLSPGMMMGMFNMLSTVLG VSILNLGQRKYTKTTYWWDGLQSSDDFALIVNAPNHEGIQAGVDRFYRTCKLVGINMSKK KSYINRTGTFEFTSFFYRYGFVANFSMELPSFGVSGINESADMSIGVTVIKNNMINNDLG PATAQMALQLFIKDYRYTYRCHRGDTQIQTRRSFELKKLWEQTRSKTGLLVSDGGPNLYN IRNLHIPEVCLKWRLMDEDYKGRLCNPLNPFVSHKEIESVNSAVVMPAHGPAKSMEYDAV ATTHSWIPKRNRSILNTSQRGVLEDEQMYQKCCNLFEKFFPSSSYRRPVGISSMVEAMVS RARIDARIDFESGRIKKEEFAEIMKICSTIEELRRQK