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Spounavirinae
Virus classification
(unranked):	Virus
Realm:	Duplodnaviria
Kingdom:	Heunggongvirae
Phylum:	Uroviricota
Class:	Caudoviricetes
Order:	Caudovirales
Family:	Herelleviridae
Subfamily:	Spounavirinae
Genera
Okubovirus Siminovitchvirus

Spounavirinae is a subfamily of viruses in the order Caudovirales, in the family Herelleviridae. Bacteria serve as natural hosts. There are currently five species in this subfamily, divided among 2 genera.

Taxonomy

Group: dsDNA

• Family: Herelleviridae
  • Sub-Family: Spounavirinae
    • Genus: Okubovirus
      • Bacillus virus Camphawk
      • Bacillus virus SPO1
    • Genus: Siminovitchvirus
      • Bacillus virus CP51
      • Bacillus virus JL
      • Bacillus virus Shanette

Structure

Viruses in the subfamily Spounavirinae are non-enveloped, with icosahedral and Head-tail geometries, and T=16 symmetry. The diameter is around 84-94 nm, with a length of 140-219 in length, contractile with globular structures at its tip, has 6 long terminal fibers, 6 short spikes and a double base platenm. Genomes are circular, around 130-160kb in length. The genome codes for 190 to 230 proteins.

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by adsorption into the host cell. DNA-templated transcription is the method of transcription. Bacteria serve as the natural host. Transmission routes are passive diffusion.

References

1. Barylski, J; Kropinski, AM; Alikhan, NF; Adriaenssens, EM; ICTV Report Consortium (April 2020). "ICTV Virus Taxonomy Profile: Herelleviridae". The Journal of General Virology. 101 (4): 362–363. doi:10.1099/jgv.0.001392. PMC 7414437. PMID 32022658.
2. ^ "ICTV Report Herelleviridae".
3. ^ "Viral Zone". ExPASy. Retrieved 1 July 2015.

External links

• ICTV Report: Herelleviridae
• Viralzone: Spounavirinae

• Spounavirinae
• Virus subfamilies