>tr|Q1WQS7|Q1WQS7_9INFA RNA-directed RNA polymerase catalytic subunit OS=Influenza A virus GN=PB1 MDVNPTLLFLKVPAQNAISTTFPYTGDPPYSHGTGTGYTMDTVNRTHQYSERGKWTTNTE TGAPQLNPIDGPLPEDNEPTGYAQTDCVLEAMAFLEKSHPGIFENSCLETMEVVQQTRVD KLTQGRQTFDWTLNRNQPAATALANTIEVFRLNGLTASESGRLIDFLKDVMESMDKEEME IVTHFQRKRRVRDNMTKKMVTQRTIGKKKQKLNKRSYIIRALTLNTMTKDAERGKLKRRA IATPGMQIRGFVYFVETLARSICEKLEQSGLPVGGNEKKAKLANVVRKMMTNSQDTELSF TITGDNTKWNENQNPRMFLAMITYITRNQPEWFRNVLSIAPIMFSNKMARLGKGYMFESK NMKLRTQIPAEMLSGIDLRYFNDSTRKKIEKIRPLLIDGAASLSPGMMMGMFNMLSTVLG VSILNLGQKEYTKTAYWWDGLQSSDDFALIVNALNHEGIQAGVDRFYRTCKLLGINMSKK KSYINRTGTFEFTSFFYRYGFVANFSMELPSFGVSGINESADMSIGVTVIKNNMINNDLG PATAQMALQLFIKDYRYTYRCHRGDTQIQTRRSFEIKKLWDQTHSKAGLLVSDGGPNLYN IRNLHIPEVCLKWELMDKDYQGRLCNPLNPFVSHKEIESVNNAVVMPSHGPAKTMEYDAV ATTHSWVPKRNRSILNTSQRGILEDEQMYQKCCNLFEKFFPSSSYRRPVGISSMVEAMVS RARIDARIDFESGRIKKEDFAEIMKICSTIEDLRRQK