| Betalipothrixvirus hveragerdiense | |
|---|---|
Virus classification 
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| (unranked): | Virus |
| Realm: | Adnaviria |
| Kingdom: | Zilligvirae |
| Phylum: | Taleaviricota |
| Class: | Tokiviricetes |
| Order: | Ligamenvirales |
| Family: | Lipothrixviridae |
| Genus: | Betalipothrixvirus |
| Species: | Betalipothrixvirus hveragerdiense
|
| Synonyms | |
| |
Betalipothrixvirus hveragerdiense (SIFV) is an archaeal virus, classified in the family Lipothrixviridae within the order Ligamenvirales. The virus infects hypethermophilic and acidophilic archaeon Sulfolobus islandicus.[1]
SIFV has a linear double-stranded DNA genome of 40,852 bp, which is the largest among characterized lipothrixviruses. The virions are enveloped filaments, nearly 2 micrometers in length. The nucleocapsid is formed from two paralogous major capsid proteins, which tightly wrap around the dsDNA genome; notably, dehydration of the genomic DNA by the major capsid proteins transforms the B-form DNA into A-form DNA.[2]
- ^ Arnold, Hans Peter; Zillig, Wolfram; Ziese, Ulrike; et al. (2000). "A novel lipothrixvirus, SIFV, of the extremely thermophilic crenarchaeon Sulfolobus". Virology. 267 (2): 252–266. doi:10.1006/viro.1999.0105. PMID 10662621.
- ^ Wang, F; Baquero, DP; Beltran, LC; Su, Z; Osinski, T; Zheng, W; Prangishvili, D; Krupovic, M; Egelman, EH (2020). "Structures of filamentous viruses infecting hyperthermophilic archaea explain DNA stabilization in extreme environments". Proceedings of the National Academy of Sciences of the United States of America. 117 (33): 19643–19652. Bibcode:2020PNAS..11719643W. doi:10.1073/pnas.2011125117. PMC 7443925. PMID 32759221.