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Subfamily of viruses From Wikipedia, the free encyclopedia
Tevenvirinae is a subfamily of viruses in the family Straboviridae of class Caudoviricetes.[1] The subfamily was previously placed in the morphology-based family Myoviridae, which was found to be paraphyletic in genome studies and abolished in the 2021 International Committee on Taxonomy of Viruses (ICTV) classification.[1][2] Bacteria and archaea serve as natural hosts. There are 148 species in this subfamily, included in 14 genera.[2]
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 |
Family: | Straboviridae |
Subfamily: | Tevenvirinae |
Genera | |
see text |
The following genera are recognized:[2]
The species Acinetobacter virus 133 is unassigned to a genus.[2] '
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.[3]
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.[3]
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