| Kappatorquevirus | |
|---|---|
Virus classification  | |
| (unranked): | Virus |
| Realm: | incertae sedis |
| Kingdom: | incertae sedis |
| Phylum: | incertae sedis |
| Class: | incertae sedis |
| Order: | incertae sedis |
| Family: | Anelloviridae |
| Genus: | Kappatorquevirus |
Kappatorquevirus is a genus of viruses, in the family Anelloviridae . Pigs serve as natural hosts. There are two species in this genus. Diseases associated with this genus include: possibly post-weaning multisystemic wasting syndrome (PMWS). [1] [2]
The genus contains the following species: [2]
Viruses in Kappatorquevirus are non-enveloped, with icosahedral geometries, and T=1 symmetry. The diameter is around 19-27 nm. Genomes are circular, around 2.7kb in length. The genome codes for 4 proteins, and has 3 open reading frames. [1]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Kappatorquevirus | Icosahedral | T=1 | Non-enveloped | Circular | Monopartite |
Viral replication is nuclear. Entry into the host cell is achieved by penetration into the host cell. Replication follows the ssDNA rolling circle model. DNA-templated transcription, with some alternative splicing mechanism is the method of transcription. The virus exits the host cell by nuclear pore export. Pigs serve as the natural host. Transmission routes are parental. [1]
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Kappatorquevirus | Pigs | None | Cell receptor endocytosis | Budding | Nucleus | Nucleus | Vertical; horizontal |
Circoviridae is a family of DNA viruses. Birds and mammals serve as natural hosts. There are 101 species in this family, assigned to 2 genera. Diseases associated with this family include: PCV-2: postweaning multisystemic wasting syndrome; CAV: chicken infectious anemia.
Nanoviridae is a family of viruses. Plants serve as natural hosts. There are currently 12 species in this family, divided among 2 genera and one unassigned species. Diseases associated with this family include: stunting. Their name is derived from the Greek word νᾶνος, because of their small genome and their stunting effect on infected plants.
Betapapillomavirus is a genus of viruses, in the family Papillomaviridae. Human serve as natural hosts. There are six species in this genus. Diseases associated with this genus include warts, papilloma, and malignant tumours.
Caulimovirus is a genus of viruses, in the family Caulimoviridae order Ortervirales. Plants serve as natural hosts. There are 12 species in this genus. Diseases associated with this genus include: vein-clearing or banding mosaic.
Cavemovirus is a genus of viruses, in the family Caulimoviridae order Ortervirales. Plants serve as natural hosts. There are three species in this genus. Diseases associated with this genus include: vein-clearing or banding mosaic.
Epsilonpapillomavirus is a genus of viruses, in the family Papillomaviridae. Cattle serve as natural hosts and it is one of the bovine papillomaviruses. There are two species in this genus. Diseases associated with this genus include: fibropapillomas and true epithelial papillomas of the skin.
Etapapillomavirus is a genus of viruses, in the family Papillomaviridae. Birds serve as natural hosts. There is only one species in this genus: Etapapillomavirus 1. Diseases associated with this genus include: causes cutaneous lesions.
Iotapapillomavirus is a genus of viruses, in the family Papillomaviridae. Rodents serve as natural hosts. There are two species in this genus. Diseases associated with this genus include: cutaneous lesions and benign skin tumours, such as papillomas and keratoacanthomas.
Kappapapillomavirus is a genus of viruses, in the family Papillomaviridae. Rabbits serve as natural hosts. There are two species in this genus. Diseases associated with this genus include: cutaneous and mucosal lesions.
Lambdapapillomavirus is a genus of viruses, in the family Papillomaviridae. Cats and dogs serve as natural hosts. There are five species in this genus. Diseases associated with this genus include: mucosal and cutaneous lesions.
Macavirus is a genus of viruses in the order Herpesvirales, in the family Herpesviridae, in the subfamily Gammaherpesvirinae. Mammals serve as natural hosts. There are nine species in this genus. Diseases associated with this genus include: inapparent infection in their reservoir hosts, but fatal lymphoproliferative disease when they infect MCF-susceptible hosts, including cattle, deer, bison, water buffalo and pigs.
Mupapillomavirus is a genus of viruses in the family Papillomaviridae. Humans serve as natural hosts. There are three species in this genus. Diseases associated with this genus include palmoplantar warts.
Omikronpapillomavirus is a genus of viruses, in the family Papillomaviridae. Porpoises serve as natural hosts. There is only one species in this genus: Omikronpapillomavirus 1. Diseases associated with this genus include: causes genital warts.
Percavirus is a genus of viruses in the order Herpesvirales, in the family Herpesviridae, in the subfamily Gammaherpesvirinae. Mammals serve as natural hosts. There are six species in this genus. Diseases associated with this genus include: conjunctivitis, immunosuppression in foals, pneumonia, respiratory disease.
Pipapillomavirus is a genus of viruses, in the family Papillomaviridae. Hamsters serve as natural hosts. There are two species in this genus. Diseases associated with this genus include: cutaneous lesions.
Thetapapillomavirus is a genus of viruses, in the family Papillomaviridae. Birds serve as natural hosts. There is only one species in this genus: Thetapapillomavirus 1. Diseases associated with this genus include cutaneous lesions.
Xipapillomavirus is a genus of viruses, in the family Papillomaviridae. Bovine serve as natural hosts. There are five species in this genus. Diseases associated with this genus include: true papillomas on the cutaneous or mucosal surfaces of cattle.
Lambdatorquevirus is a genus of viruses, in the family Anelloviridae. Sea lions serve as natural hosts. There are six species in this genus.
Solendovirus is a genus of viruses, in the family Caulimoviridae order Ortervirales. Plants serve as natural hosts. There are two species in this genus. Diseases associated with this genus include: TVCV: vein-clearing symptoms in N. edwardsonii.
Torque teno virus, belonging to the family Anelloviridae, is a group of virus strains that are non-enveloped, with a single-stranded circular DNA genome ranging from 2.6 to 2.8 kb in size. These swine infecting anelloviruses are divided into two genera: Iotatorquevirus and Kappatorquevirus. Torque teno sus virus has been found in pigs worldwide. TTSuVs are mainly transmitted by fecal-oral route. The prevalence of these viruses is relatively high. For now, there is not known disease caused exclusively by TTSuV. There is the possibility that TTSuV may worsen the progression of other diseases and therefore increase the economic losses for pig industry.