Torovirus

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Torovirus

Virus classification
Group: Group IV ((+)ssRNA)
Family: Coronaviridae
Genus: Torovirus


The Torovirus is a genus of viruses that are under the Coronaviridae family that primarily infect vertebrates. Viral particles share characteristics within the Coronavirus family including a round, pleomorphic, enveloped virus 120 to 140 nm in diameter. Virus also exhibits surface spike proteins that are club-shaped and are evenly dispersed all over the surface. A nucleocapsid is present and is rod-shaped with helical symmetry with variable sizes.[1]

[edit] Genome

Within the class IV viruses, it has a single piece of single-stranded, positive-sense RNA. The total length is about 22,000 nucleotides and with all Coronaviridae, experience rather complex replication systems including use of subgenomic mRNA, ribosomal frameshifting and polymerase stuttering.


[edit] Species

Well studied species within this genus include[2]:

  • Bovine toroviruses

Bovine torovirus
Breda virus

  • Equine toroviruses

Equine torovirus
Berne virus - Toroviruses type species

  • Human toroviruses

Human torovirus

  • Porcine toroviruses

Porcine torovirus

[edit] Literature

  1. ^ ICTVdB Management (2006). 03.019.0.02. Torovirus. In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA
  2. ^ Index of Viruses - Coronaviridae (2006). In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C (Ed), Columbia University, New York, USA. http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fs_index.htm
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