Tevenvirinae
Tevenvirinae | |
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Electron micrograph of two virions of genus Tequatrovirus | |
Virus classification | |
(unranked): | Virus |
Realm: | Duplodnaviria |
Kingdom: | Heunggongvirae |
Phylum: | Uroviricota |
Class: | Caudoviricetes |
Order: | Caudovirales |
Family: | Myoviridae |
Subfamily: | Tevenvirinae |
Genera | |
see text |
Tevenvirinae is a subfamily of viruses in the order Caudovirales, in the family Myoviridae. Bacteria and archaea serve as natural hosts. There are 135 species in this subfamily, most included in 12 genera.[1][2]
Taxonomy
The following genera are recognized:[2]
- Dhakavirus
- Gaprivervirus
- Gelderlandvirus
- Jiaodavirus
- Karamvirus
- Krischvirus
- Moonvirus
- Mosigvirus
- Pseudotevenvirus
- Schizotequatrovirus
- Slopekvirus
- Tequatrovirus
The following species are unassigned to a genus:[2]
- Acinetobacter virus 133
- Aeromonas virus Aeh1
Structure
Viruses in Tevenvirinae are non-enveloped, with head-tail geometries. These viruses are about 70 nm wide and 140 nm long. Genomes are linear, around 170-245kb in length. The genome codes for 300 to 415 proteins.[1]
Life cycle
Viral replication is cytoplasmic. Entry into the host cell is achieved by adsorption into the host cell. DNA-templated transcription is the method of transcription. The virus exits the host cell by lysis, and holin/endolysin/spanin proteins. Bacteria and archaea serve as the natural host. Transmission routes are passive diffusion.[1]
References
- 1 2 3 "Viral Zone". ExPASy. Retrieved 1 July 2015.
- 1 2 3 "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 11 May 2021.