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 ...

of the family ''

Bicaudaviridae ''Bicaudaviridae'' is a family of hyperthermophilic archaeal viruses. Members of the genus ''Acidianus'' serve as natural hosts. There is only one genus (''Bicaudavirus'') and one species in this family: ''Acidianus two-tailed virus''. However, ...

''. It infects the

hyperthermophilic A hyperthermophile is an organism that thrives in extremely hot environments—from 60 °C (140 °F) upwards. An optimal temperature for the existence of hyperthermophiles is often above 80 °C (176 °F). Hyperthermophiles are often within the doma ...

archaeon Archaea ( ; singular archaeon ) is a domain of single-celled organisms. These microorganisms lack cell nuclei and are therefore prokaryotes. Archaea were initially classified as bacteria, receiving the name archaebacteria (in the Archaebact ...

Sulfolobus tengchongensis ''Sulfolobus'' is a genus of microorganism in the family Sulfolobaceae. It belongs to the archaea domain. ''Sulfolobus'' species grow in volcanic springs with optimal growth occurring at pH 2-3 and temperatures of 75-80 °C, making them ...

'' which can be found in the volcanic area of

Tengchong Tengchong () is a county-level city of Baoshan City, western Yunnan province, People's Republic of China. It is well known for its volcanic activity. The city is named after the town of Tengchong which serves as its political center, previously kn ...

Baoshan City (; historically also Yongchang, Burmese:ပေါက်ရှန်) is a prefecture-level city in Western Yunnan Province, People's Republic of China. Baoshan is the second-biggest metropolitan area in western Yunnan after Dali. Geography a ...

, in western

Yunnan Yunnan , () is a landlocked province in the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is Kunming. The province borders the C ...

province,

People's Republic of China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

. 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 ''Fuselloviridae'' is a family of viruses. Sulfolobus species, specifically shibatae, solfataricus, and islandicus, serve as natural hosts. There are two genera and ...

'', family ''

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

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