>tr|A9C536|A9C536_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