title: P1 is required for initiation of cRNA synthesis in WSN influenza virus.
mesh_terms: D009980:Influenza A virus / Q000235:genetics / Q000378:metabolism*; D009154:Mutation; D009841:Oligonucleotides / Q000378:metabolism*; D012367:RNA, Viral / Q000096:biosynthesis*; D012324:RNA-Dependent RNA Polymerase / Q000378:metabolism; D013696:Temperature; D014158:Transcription, Genetic; D014764:Viral Proteins / Q000378:metabolism*
chemical_list: D009841:Oligonucleotides; D012367:RNA, Viral; D014764:Viral Proteins; D012324:RNA-Dependent RNA Polymerase