Totiviridae

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

Totiviridae is a family of double-stranded RNA viruses. They are non-enveloped, icosahedral viruses. The virion is composed of a single capsid protein and is about 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 capsid protein and the RNA-dependent RNA polymerase. Some totiviruses contain a third small potential ORF.

Classification

There are five genera in Totiviridae, which contain a total of 29 species.

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

External links

Viralzone: Totiviridae

Baltimore (virus classification)

DNA

I: dsDNA viruses

Caudovirales	Myoviridae Podoviridae Siphoviridae

Herpesvirales	Alloherpesviridae Herpesviridae Malacoherpesviridae

Ligamenvirales	Lipothrixviridae Rudiviridae

Unassigned	NLCDV: Asfarviridae Iridoviridae Marseilleviridae Megaviridae Mimiviridae Phycodnaviridae Poxviridae nonenveloped: Adenoviridae Papillomaviridae Papovaviridae (obsolete) Polyomaviridae Ampullaviridae Ascoviridae Baculoviridae Bicaudaviridae Clavaviridae Corticoviridae Fuselloviridae Globuloviridae Guttaviridae Hytrosaviridae Nimaviridae Plasmaviridae Tectiviridae

II: ssDNA viruses

Anelloviridae Bacillariodnaviridae Circoviridae Geminiviridae Inoviridae Microviridae Nanoviridae Parvoviridae

RNA

III: dsRNA viruses

Birnaviridae Chrysoviridae Cystoviridae Hypoviridae Partitiviridae Reoviridae Totiviridae

IV: (+)ssRNA viruses (primarily icosahedral)

Nidovirales	Arteriviridae Coronaviridae Roniviridae

Picornavirales	Dicistroviridae Iflaviridae Marnaviridae Picornaviridae Secoviridae

Tymovirales	Alphaflexiviridae Betaflexiviridae Gammaflexiviridae Tymoviridae

Unassigned	Astroviridae Barnaviridae Bromoviridae Caliciviridae Closteroviridae Comoviridae Flaviviridae Flexiviridae Leviviridae Luteoviridae Narnaviridae Nodaviridae Potyviridae Sequiviridae Tetraviridae Togaviridae Tombusviridae

V: (-)ssRNA viruses (primarily helical)

Mononegavirales	Bornaviridae Filoviridae Paramyxoviridae Rhabdoviridae

Unassigned	Arenaviridae Bunyaviridae Orthomyxoviridae

VI: ssRNA-RT viruses

Metaviridae Pseudoviridae Retroviridae

VII: dsDNA-RT viruses

Caulimoviridae Hepadnaviridae

M: VIR

virs(prot)/clss

cutn/syst (hppv/hiva, infl/zost/zoon)/epon

drug (dnaa, rnaa, rtva, vacc)

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