Raphidovirus

Raphidovirus
Virus classification Edit this classification
(unranked): Virus
Realm: Varidnaviria
Kingdom: Bamfordvirae
Phylum: Nucleocytoviricota
Class: Megaviricetes
Order: Algavirales
Family: Phycodnaviridae
Genus: Raphidovirus

Raphidovirus (likely misspelled Rhaphidovirus) is a genus of viruses, in the family Phycodnaviridae. Alga serve as natural hosts. There is only one species in this genus: Heterosigma akashiwo virus 01 (HaV01).[1][2]

Structure

Schematic drawing of a typical Phycodnaviridae virion (cross section and side view)

Viruses in Raphidovirus are enveloped, with icosahedral and round geometries, and T=169 symmetry. The diameter is around 100-220 nm. Genomes are linear, around 295kb in length.[1]

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Raphidovirus Icosahedral T=169 Enveloped Linear Monopartite

Life cycle

Viral replication is nucleo-cytoplasmic. Replication follows the DNA strand displacement model. DNA-templated transcription is the method of transcription. The virus exits the host cell by lysis via lytic phospholipids. Alga serve as the natural host. Transmission routes are passive diffusion.[1]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Raphidovirus Alga None Cell receptor endocytosis Lysis Nucleus Cytoplasm Passive diffusion

References

  1. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. ^ "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 22 May 2021.