Table 2.

List of viral proteins that enter the nucleus and importin factors that are used, adapted from [20]

Protein	Import co-proteins
PB2	Importin α1, α3, α5, α7, β
PB1	(PB1+PA)+RanBP5
PA
NP	Importin α1, α3, α5, α7, β
vRNP	Importin α1, α5, β