Lambdatorquevirus
Genus of viruses
From Wikipedia, the free encyclopedia
Lambdatorquevirus is a genus of viruses, in the family Anelloviridae. Sea lions serve as natural hosts. There are five species in this genus.[1][2]
| Lambdatorquevirus | |
|---|---|
Virus classification  | |
| (unranked): | Virus |
| Realm: | Floreoviria |
| Kingdom: | Shotokuvirae |
| Phylum: | Commensaviricota |
| Class: | Cardeaviricetes |
| Order: | Sanitavirales |
| Family: | Anelloviridae |
| Genus: | Lambdatorquevirus |
Taxonomy
The genus contains the following species:[2]
- Lambdatorquevirus phoci1
- Lambdatorquevirus phoci2
- Lambdatorquevirus phoci3
- Lambdatorquevirus phoci5
- Lambdatorquevirus phoci6
Structure
Viruses in Lambdatorquevirus are non-enveloped, with icosahedral geometries, and T=1 symmetry. The diameter is around 19-27 nm. Genomes are circular, around 2.1kb in length. The genome has 2 open reading frames.[1]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Lambdatorquevirus | Icosahedral | T=1 | Non-enveloped | Circular | Monopartite |
Life cycle
Viral replication is nuclear. Entry into the host cell is achieved by penetration into the host cell. Replication follows the ssDNA rolling circle model. DNA-templated transcription, with some alternative splicing mechanism is the method of transcription. The virus exits the host cell by nuclear pore export. Sea lions serve as the natural host.[1]
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Lambdatorquevirus | Sea lions | None | Cell receptor endocytosis | Budding | Nucleus | Nucleus | Vertical; horizontal |