avastrovirus
{{Short description|Genus of viruses}}
{{Use dmy dates|date=April 2017}}
{{virusbox
| taxon = Avastrovirus
| image = Astrovirus.jpg
}}
Avastrovirus is a genus of viruses, in the family Astroviridae. Birds serve as natural hosts. There are three species in this genus. Diseases associated with this genus include: gastroenteritis, liver or kidney damages.{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/280.html|publisher=ExPASy|accessdate=15 June 2015}}{{cite web |title=Virus Taxonomy: 2020 Release |url=https://ictv.global/taxonomy |publisher=International Committee on Taxonomy of Viruses (ICTV) |date=March 2021 |access-date=21 May 2021}}
Taxonomy
Structure
Viruses in Avastrovirus are non-enveloped, with icosahedral and spherical geometries, and T=3 symmetry. The diameter is around 35 nm. Genomes are linear and non-segmented, around 6.8-7kb in length.
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| Genus | Structure || Symmetry | Capsid | Genomic arrangement | Genomic segmentation | |
|---|---|---|---|---|---|
| Avastrovirus | Icosahedral | T=3 | Non-enveloped | Linear | Monopartite |
Life cycle
Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment to host receptors, which mediates endocytosis. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription, using an unknown model of subgenomic RNA transcription is the method of transcription. Translation takes place by -1 ribosomal frameshifting. Birds serve as the natural host. Transmission routes are fecal-oral.
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| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Avastrovirus | Birds | Enterocytes | Cell receptor endocytosis | Budding | Cytoplasm | Cytoplasm | Oral-fecal |
References
{{Reflist}}
External links
- [http://viralzone.expasy.org/all_by_species/280.html Viralzone: Avastrovirus]
- [http://ictvonline.org/virusTaxonomy.asp ICTV]
{{Baltimore classification}}
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