Ambidensovirus
| Ambidensovirus | |
|---|---|
| Virus classification | |
| Group: |
Group II (ssDNA)
|
| Order: |
Unassigned
|
| Family: | |
| Subfamily: | |
| Genus: |
Ambidensovirus
|
| Type species | |
| Lepidopteran ambidensovirus 1 |
|
Lua error in Module:Taxonbar/candidate at line 22: attempt to index field 'wikibase' (a nil value).
The virus genus Ambidensovirus belongs to the Densovirinae subfamily which belongs to the Parvoviridae family. The viruses of this genus are single-stranded DNA viruses. This genus infects invertebrates, including crustaceans and insects. There are currently six species in this genus including the type species Lepidopteran ambidensovirus 1.[1][2]
Taxonomy
Group: ssDNA
-
Family: Parvoviridae
-
Sub-Family: Densovirinae
- <templatestyles src="Template:Hidden begin/styles.css"/>
-
Structure
Virions consist of non-enveloped capsids that have a round appearance and display icosahedral symmetry.[3] The virions each have an isometric (and therefore spherical) nucleocapsid with a diameter of either 18–22 nm or 20–26 nm.[3] Sixty capsomers are present in each capsid.[3] The structure of each capsomer is described as "a quadrilateral 'kite-shaped' wedge"; the surface is said to have a rough appearance with small projections.[3] The centre of capsids are sometimes visualised as appearing dark due to stain penetration in preparations where only a single species is retrieved. The virions do not appear to contain lipids. The buoyant density (in CsCl) of the virions is 1.4–1.44 g cm−3.[3]
| Genus | Structure | Symmetry | Capsid | Genomic Arrangement | Genomic Segmentation |
|---|---|---|---|---|---|
| Ambidensovirus | Icosahedral | T=1 | Non-Enveloped | Linear | Segmented |
Genome
Ambidensoviruses are non-enveloped and have icosahedral capsids with T=1 symmetry. They have non-segmented genomes that contain a single linear molecule of single-stranded DNA. The genome codes for structural proteins are about 5000 nucleotides in length and could either be negative-sense or positive-sense. Conserved nucleotide sequences of usually 120–300 or more nucleotides are present at the 3'-terminus and an inverted repeat of this could also be found at the 5'-terminus.[3]
Life Cycle
Viral replication is nuclear. Entry into the host cell is achieved by attachment to host receptors, which mediates clathrin-mediated endocytosis. Replication follows the rolling-hairpin model. DNA-templated transcription, with some alternative splicing mechanism is the method of transcription. Insects serve as the natural host.[1]
| Genus | Host Details | Tissue Tropism | Entry Details | Release Details | Replication Site | Assembly Site | Transmission |
|---|---|---|---|---|---|---|---|
| Ambidensovirus | Insects | Variable | Clathrin-mediated endocytosis | uncertain | Nucleus | Nucleus | Unknown |
