Discoviridae (taxid:2946176)

VIRION

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Non-enveloped.

GENOME

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Segmented Negative-stranded RNA linear genome, L segment is about 6.5 kb, M segment about 1.6 kb and S segment about 1.2 kb.
Encodes for at least three proteins.

Enzymes: RNA dependent RNA polymerase, endonuclease? (Cap snatching)

GENE EXPRESSION

The viral RNA dependent RNA polymerase (L) binds to a promoter on each encapsidated segment, and transcribes the mRNAs. These are capped by L protein during synthesis using cap snatching . Transcription is terminated by a strong hairpin sequence at the end of each gene.

ENZYMES

REPLICATION

CYTOPLASMIC

  1. The ribonucleocapsids enters a cell by Fungal intercellular connetions
  2. Transcription, viral mRNAs are capped in the cytoplasm.
  3. Replication presumably starts when enough nucleoprotein is present to encapsidate neo-synthetized antigenomes and genomes.
  4. The ribonucleocapsids is transmitted to another cell by Fungal intercellular connetions