Sphaerolipoviridae
Sphaerolipoviridae is a family of double-stranded DNA viruses that infect thermophilic bacteria and halophilic archea, formally approved by the International Committee on Taxonomy of Viruses in 2015.[1] Viruses of this family have tailless icosahedral virions with an internal lipid membrane located between the protein capsid and the double-stranded DNA genome. Overall virion organization of sphaerolipoviruses is similar to that of viruses belonging to the families Tectiviridae, Corticoviridae and Turriviridae.
| Sphaerolipoviridae | |
|---|---|
 | |
| Schematic drawing (cross section and side view) | |
Virus classification  | |
| (unranked): | Virus |
| Realm: | Varidnaviria |
| Kingdom: | Helvetiavirae |
| Phylum: | Dividoviricota |
| Class: | Laserviricetes |
| Order: | Halopanivirales |
| Family: | Sphaerolipoviridae |
| Genera | |
There are three genera in this family. Members of the genera Alphasphaerolipovirus and Betasphaerolipovirus infect halophilic archaea, while those of the genus Gammasphaerolipovirus replicate in thermophilic bacteria.[2]
The kingdom Helvetiavirae is recognized for its use of single-domain, vertically-folded jelly roll capsids.[3]
References
- ICTV: ICTV Taxonomy History for Sphaerolipoviridae (accessed 12 March 2015)
- Pawlowski A, Rissanen I, Bamford JK, Krupovic M, Jalasvuori M (2014). "Gammasphaerolipovirus, a newly proposed bacteriophage genus, unifies viruses of halophilic archaea and thermophilic bacteria within the novel family Sphaerolipoviridae". Arch Virol. 159 (6): 1541–1554. doi:10.1007/s00705-013-1970-6. PMID 24395078.
- Koonin EV, Dolja VV, Krupovic M, Varsani A, Wolf YI, Yutin N, Zerbini M, Kuhn JH (October 2019). "Create a megataxonomic framework, filling all principal taxonomic ranks, for DNA viruses encoding vertical jelly roll-type major capsid proteins". ICTV Proposal (Taxoprop): 2019.003G. doi:10.13140/RG.2.2.14886.47684.
