The structure of the nucleoprotein of Influenza D shows that all Orthomyxoviridae nucleoproteins have a similar NPCORE, with or without a NPTAILfor nuclear transport.
Donchet, A., Oliva, J., Labaronne, A., Tengo, L., Miloudi, M., C A Gerard, F., Mas, C., Schoehn, G., W H Ruigrok, R., Ducatez, M., Crepin, T.(2019) Sci Rep 9: 600-600
- PubMed: 30679709 
- DOI: 10.1038/s41598-018-37306-y
- Primary Citation of Related Structures:  
5N2U - PubMed Abstract: 
This paper focuses on the nucleoprotein (NP) of the newly identified member of the Orthomyxoviridae family, Influenza D virus. To date several X-ray structures of NP of Influenza A (A/NP) and B (B/NP) viruses and of infectious salmon anemia (ISA/NP) virus have been solved ...