>4ZI0_1|Chain A|Polymerase acidic protein|Influenza A virus (strain A/Puerto Rico/8/1934 H1N1) (211044) GPLGSMEDFVRQCFNPMIVELAEKTMKEYGEDLKIETNKFAAICTHLEVCFMYSDASKHRFEIIEGRDRTMAWTVVNSICNTTGAEKPKFLPDLYDYKENRFIEIGVTRREVHIYYLEKANKIKSEKTHIHIFSFTGEEMATKADYTLDEESRARIKTRLFTIRQEMASRGLWDSFRQSERGAAELALVPR