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The generation of recombinant influenza A viruses expressing a PB2 fusion protein requires the conservation of a packaging signal overlapping the coding and noncoding regions at the 5′ end of the PB2 segment

Virus StructureViral ReplicationPb2 Fusion ProteinViral Polymerase MechanismMolecular BiologyVirologyVirus GeneSystems BiologyMedicinePackaging SignalPb2 SegmentViral Genetics