Entomobirnavirus Explained

Entomobirnavirus is a genus of viruses in the family Birnaviridae.^[1] Its natural host is the fly Drosophila melanogaster. There are two species in this genus.^{[2] [3]}

Taxonomy

The genus contains the following species:^[4]

• Drosophila X virus
• Mosquito X virus

Structure

Viruses in the genus Entomobirnavirus are non-enveloped, with icosahedral and single-shelled geometries, and T=13 symmetry. The diameter is around 70 nm. Genomes are linear and segmented, around 15.3.2-3.5kb in length. The genome codes for 5 proteins.^[2]

Genus	Structure	Symmetry !	Capsid	Genomic arrangement	Genomic segmentation
Entomobirnavirus	Icosahedral	T=13	Non-enveloped	Linear	Segmented

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the double-stranded RNA virus replication model. Double-stranded rna virus transcription is the method of transcription. Drosophila melanogaster serve as the natural host.^[2]

External links

• ICTV Report: Birnaviridae
• Viralzone: Entomobirnavirus

Notes and References

1. Delmas . B . Attoui . H . Ghosh . S . Malik . YS . Mundt . E . Vakharia . VN . ICTV Report . Consortium . ICTV virus taxonomy profile: Birnaviridae. . The Journal of General Virology . January 2019 . 100 . 1 . 5-6 . 10.1099/jgv.0.001185 . 30484762. free .
2. Web site: ICTV Report Birnaviridae .
3. Web site: Viral Zone. ExPASy. 15 June 2015.
4. Web site: Virus Taxonomy: 2020 Release . International Committee on Taxonomy of Viruses (ICTV) . March 2021 . 21 May 2021.