Atadenovirus Explained

Atadenovirus is a genus of viruses, in the family Adenoviridae. Vertebrates serve as natural hosts. There are 10 species in this genus.^{[1] [2]}

Taxonomy

The genus contains the following 10 species:

• Bovine atadenovirus D
• Bovine atadenovirus E
• Deer atadenovirus A
• Duck atadenovirus A
• Lizard atadenovirus A
• Lizard atadenovirus B
• Ovine atadenovirus D
• Possum atadenovirus A
• Psittacine atadenovirus A
• Snake atadenovirus A

Structure

Viruses in Atadenovirus are non-enveloped, with icosahedral geometries, and T=25 symmetry. The diameter is around 90 nm. Genomes are linear and non-segmented, around 30kb in length. The genome codes for 30 proteins.

Genus	Structure	Symmetry !	Capsid	Genomic arrangement	Genomic segmentation
Atadenovirus	Polyhedral	Pseudo T=25	Non-enveloped	Linear	Monopartite

Life cycle

Viral replication is nuclear. Entry into the host cell is achieved by attachment of the viral fiber glycoproteins to host receptors, which mediates endocytosis. Replication follows the DNA strand displacement model. DNA-templated transcription, with some alternative splicing mechanism is the method of transcription. The virus exits the host cell by nuclear envelope breakdown, viroporins, and lysis. Vertebrates serve as the natural host.

External links

• Viralzone: Atadenovirus
• ICTV

Notes and References

1. Web site: Viral Zone. ExPASy. 12 June 2015.
2. Web site: Virus Taxonomy: 2020 Release . International Committee on Taxonomy of Viruses (ICTV) . March 2021 . 22 May 2021.