Betalipothrixvirus hveragerdiense

Betalipothrixvirus hveragerdiense
Virus classification
(unranked): Virus
Realm: Adnaviria
Kingdom: Zilligvirae
Phylum: Taleaviricota
Class: Tokiviricetes
Order: Ligamenvirales
Family: Lipothrixviridae
Genus: Betalipothrixvirus
Species:
Betalipothrixvirus hveragerdiense
Synonyms
  • Sulfolobus islandicus filamentous virus virus name & previous species name
  • SIFV virus name abbreviation

Betalipothrixvirus hveragerdiense (SIFV) is an archaeal virus, classified in the family Lipothrixviridae within the order Ligamenvirales. The virus infects hyperthermophilic and acidophilic archaeon Sulfolobus islandicus.

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.

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