Captovirus


Captovirus is a genus of dsDNA viruses in the family Ungulaviridae. Archaea acidianus serve as natural hosts. There is only one species in this genus: Captovirus AFV1, which was renamed to Captovirus yellowstonese in ICTV 2023 release.

Structure

Viruses in Captovirus are enveloped, with rod-shaped geometries. The diameter is around 24 nm, with a length of 900 nm. Genomes are linear, around 20kb in length. The genome codes for 40 proteins.
GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
CaptovirusRod-shapedEnvelopedLinearMonopartite

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. Archaea acidianus serve as the natural host. Transmission routes are passive diffusion.
GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
CaptovirusArchea: acidianus-InjectionBuddingCytoplasmCytoplasmPassive diffusion