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Virus classification e
(unranked): Virus
Phylum: incertae sedis
Class: incertae sedis
Order: incertae sedis
Family: Guttaviridae

Guttaviridae is a family of viruses. Sulfolobus newzealandicus serve as natural hosts. There are currently only two species in this family, divided among 2 genera.[1][2] The name is derived from the Latin gutta, meaning 'droplet'.[3][4][5]


Group: dsDNA



Viruses in the family Guttaviridae are enveloped. The diameter is around 70–95 nm, with a length of 110–185 nm. Genomes are circular, around 20kb in length.[2][3] The virons consist of a coat, a core, a nucleocapsid, and projecting fibers at the pointed end. The surface of the virion has a beehive-like ribbed surface pattern with protrusions that are densely covered by a 'beard' of long fibers at its pointed end. The genome is extremely heavily methylated.

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Betaguttavirus Ovoid Enveloped Circular Monopartite
Alphaguttavirus Ovoid Enveloped Circular Monopartite

Life cycle[edit]

DNA-templated transcription is the method of transcription. Sulfolobus newzealandicus serve as the natural host.[2][3]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Betaguttavirus Archaea: Sulfolobus newzealandicus None Unknown Unknown Cytoplasm Cytoplasm Unknown
Alphaguttavirus Archaea: Sulfolobus newzealandicus None Unknown Unknown Cytoplasm Cytoplasm Unknown


  1. ^ Prangishvili, D; Mochizuki, T; Krupovic, M; ICTV Report Consortium (8 February 2018). "ICTV Virus Taxonomy Profile: Guttaviridae". The Journal of General Virology. doi:10.1099/jgv.0.001027. PMC 5882108. PMID 29458561.
  2. ^ a b c d "ICTV Online Report Guttaviridae".
  3. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
  4. ^ Mochizuki T, Sako Y, Prangishvili D (2011) Provirus induction in hyperthermophilic Archaea: Characterization of Aeropyrum pernix spindle-shaped virus 1 and Aeropyrum pernix ovoid virus 1. J Bacteriol 193(19):5412–5419
  5. ^ Arnold HP, Ziese U and Zillig W (2000). SNDV, a novel virus of the extremely thermophilic and acidophilic archaeon Sulfolobus. Virology 272:409–16.

External links[edit]