Unknown, discovered using viral metagenomics.
Segmented Negative-stranded RNA linear genome: RNA1 segment is about 6 kb, RNA2 segment about 1.6 kb. Encodes for two proteins.
Viral RNA-dependent RNA polymerase (L) binds to a promoter on each segment and transcribes a messenger RNA.
NUCLEAR or CYTOPLASMIC?
- Virus invades host cells by unknown mechanism: genomic segments are released in cytoplasm.
- Unknown mechanism of propagation.