Torradovirus (taxid:675073)

VIRION

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Non-enveloped, about 30 nm in diameter, pseudo T=3 icosahedral capsid. Genome segments are encapsidated separately into two different types of particle similar in size.

GENOME

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Segmented, bipartite linear ssRNA(+) genome composed of RNA.1=7.8 kb and RNA-2=5.4 kb. Each genomic segment has a VPg linked to its 5' end and a 3' poly(A) tract.

GENE EXPRESSION

The virion RNA is infectious and serves as both genome and mRNA.
RNA-1 and RNA-2 are translated into two polyproteins, which are then processed into functional proteins. RNA-1 encodes proteins necessary for replication, while RNA-2 encodes one or two capsid proteins and product(s) involved in cell-to-cell movement.

ENZYMES

REPLICATION

CYTOPLASMIC

  1. Virus penetrates into the cell.
  2. Uncoating, and release of the viral genomic RNA into the cytoplasm.
  3. Synthesis and proteolytic cleavage of the replicase polyprotein RNA-1.
  4. Replication occurs in viral factories made of membrane vesicles derived from the ER. A dsRNA genome is synthesized from the genomic ssRNA(+).
  5. The dsRNA genome is transcribed/replicated thereby providing viral mRNAs/new ssRNA(+) genomes.
  6. Assembly of new virus particles.
  7. Movement protein allows cell-to-cell movement.

Matching UniProtKB/Swiss-Prot entries

(all links/actions below point to uniprot.org website)

3 entries grouped by strain

3 entries

Tomato torrado virus (isolate Solanum lycopersicum/Spain/PRIToTV0301/-) (ToTV) reference strain

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POL1_TOTV RNA1 polyprotein [Cleaved into: Protease-cofactor; Putative helicase (EC 3.6.4.-); Picornain 3C-like ...
POL2_TOTV RNA2 polyprotein [Cleaved into: Movement protein; Capsid protein VP35; Capsid protein VP26; Capsid ...
ORF1_TOTV Uncharacterized protein ORF1