Avastrovirus

Avastrovirus is a genus of viruses, in the family Astroviridae. Birds serve as natural hosts. There are currently three species in this genus including the type species Avastrovirus 1. Diseases associated with this genus include: gastroenteritis, liver or kidney damages.[1][2]

Avastrovirus
Virus classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Pisuviricota
Class: Stelpaviricetes
Order: Stellavirales
Family: Astroviridae
Genus: Avastrovirus
Type species
Avastrovirus 1

Taxonomy

Group: ssRNA(+)

[2]

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.[1]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
AvastrovirusIcosahedralT=3Non-envelopedLinearMonopartite

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.[1]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
AvastrovirusBirdsEnterocytesCell receptor endocytosisBuddingCytoplasmCytoplasmOral-fecal
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References
  1. "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.
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