title: GSM8504240: PB1_177_385 mutation library #1; Influenza A virus (A/WSN/1933(H1N1)); OTHER
library_construction_protocol: RNA was extracted using Monarch Total RNA Miniprep Kit from New England Biolabs (NEB #T2010) Custom amplicon sequencing, or custom 5' RACE using Template Switching RT Enzyme Mix (New England Biolabs, #M0466)