Erythroparvovirus
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Erythroparvovirus is a genus of viruses in subfamily Parvovirinae of the virus family Parvoviridae. There are seven species in this genus. Diseases associated with this genus include fifth disease and skin lesions.
Taxonomy
The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species:
- Erythroparvovirus pinniped1, Seal parvovirus
- Erythroparvovirus primate1, Human parvovirus B19
- Erythroparvovirus primate2, Simian parvovirus
- Erythroparvovirus primate3, Rhesus macaque parvovirus
- Erythroparvovirus primate4, Pig-tailed macaque parvovirus
- Erythroparvovirus rodent1, Chipmunk parvovirus
- Erythroparvovirus ungulate1, Bovine parvovirus 3
Structure
Viruses in Erythroparvovirus are non-enveloped, with icosahedral and round geometries, and T=1 symmetry. The diameter is around 18-26 nm. Genomes are linear, around 6kb in length.
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Erythroparvovirus | Icosahedral | T=1 | Non-enveloped | Linear | None |
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. The virus exits the host cell by nuclear pore export. Transmission routes are oral and respiratory.
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Erythroparvovirus | Vertebrates | often restricted to erythroid progenitors | Clathrin-mediated endocytosis | Cell lysis | Nucleus | Nucleus | Aerosol |