Sulfolobus tengchongensis spindle-shaped virus 1 (STSV1) is a

DNA virus A DNA virus is a virus that has a genome made of deoxyribonucleic acid (DNA) that is replicated by a DNA polymerase. They can be divided between those that have two strands of DNA in their genome, called double-stranded DNA (dsDNA) viruses, and t ...

of the family '' Bicaudaviridae''. It infects the hyperthermophilic

archaeon Archaea ( ) is a domain of organisms. Traditionally, Archaea only included its prokaryotic members, but this has since been found to be paraphyletic, as eukaryotes are known to have evolved from archaea. Even though the domain Archaea cladis ...

'' Sulfolobus tengchongensis'' which can be found in the volcanic area of Tengchong, Baoshan City, in western

Yunnan Yunnan; is an inland Provinces of China, province in Southwestern China. The province spans approximately and has a population of 47.2 million (as of 2020). The capital of the province is Kunming. The province borders the Chinese provinces ...

province,

People's Republic of China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

. In 2014, Sulfolobus tengchongensis spindle-shaped virus 2 (STSV2), a relative of STSV1, also infecting ''S. tengchongensis'', has been reported. Besides ''S. tengchongensis'', STSV2 infects ''Sulfolobus islandicus'' REY15A. It has been demonstrated that STSV2 induces unprecedented gigantism of ''S. islandicus'' cells by blocking the expression of the cell division genes and arresting the cell cycle in the S phase. The diameter of infected cells increases up to 20 times, resulting in 8,000-fold increase in volume compared to noninfected cells.

References

External links

*
UCSC Sulfolobus virus STSV1 Genome Browser Gateway

STSV-1, also STSV-2, and Sulfolobus spindle-shaped virus 1, 4, 5, 6, 7 as well * NCBI
Sulfolobus tengchongensis spindle-shaped virus 1 (STSV-1)
(unclassified species) * NCBI
Sulfolobus spindle-shaped virus 1 (SSV1)
(species, CTV accepted) of genus ''

Alphafusellovirus ''Alphafusellovirus'' is a genus of viruses, in the family ''Fuselloviridae''. Species in the genus Sulfolobus ('' Sulfolobus shibatae'', ''Sulfolobus solfataricus ''Saccharolobus solfataricus'' is a species of thermophilic archaeon. It was ...

'', family ''

Fuselloviridae ''Fuselloviridae'' is a family of viruses. Sulfolobus species, specifically shibatae, solfataricus, and islandicus, serve as natural hosts. There are two genera in the family. Viruses in ''Fuselloviridae'' are ubiquitous in high-temperature (≥ ...

'' — not to be confused (see also UniProt
SSV1
Bicaudaviridae {{virus-stub