Totiviridae

Totiviridae
Virus classification
Group:	Group III (dsRNA)
Family:	Totiviridae
Genera
Totivirus Giardiavirus Leishmaniavirus Victorivirus

The Totiviridae are a family of viruses. They are non enveloped, icosahedral viruses. The viron is composed of a single capsid protein and are ~40 nanometers in diameter. The capsid has a T=2 symmetry.

The genome is composed of a linear double stranded RNA molecule of 4.6-6.7 kilobases. It contains 2 overlapping open reading frames (ORF) - gag and pol - which respectively encode the capid protein and the RNA dependent RNA polymerase. Some totiviruses contain a third small potential ORF.

Genera

• Genus Totivirus; type species: Saccharomyces cerevisiae virus L-A
• Genus Giardiavirus; type species: Giardia lamblia virus
• Genus Leishmaniavirus; type species: Leishmania RNA virus 1-1
• Genus Victorivirus: type species Helminthosporium victoriae virus 190S

External links

• Viralzone: Totiviridae