Lambdatorquevirus

Lambdatorquevirus is a genus of viruses, in the family Anelloviridae. Sea lions serve as natural hosts. There are currently six species in this genus including the type species Torque teno zalophus virus 1.[1][2]

Lambdatorquevirus
Virus classification
(unranked): Virus
Realm: incertae sedis
Kingdom: incertae sedis
Phylum: incertae sedis
Class: incertae sedis
Order: incertae sedis
Family: Anelloviridae
Genus: Lambdatorquevirus
Type species
Torque teno zalophus virus 1

Taxonomy

The following species are recognized:

Structure

Viruses in Lambdatorquevirus are non-enveloped, with icosahedral geometries, and T=1 symmetry. The diameter is around 19-27 nm. Genomes are circular, around 2.1kb in length. The genome has 2 open reading frames.[1]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
LambdatorquevirusIcosahedralT=1Non-envelopedCircularMonopartite

Life cycle

Viral replication is nuclear. Entry into the host cell is achieved by penetration into the host cell. Replication follows the ssDNA rolling circle model. DNA-templated transcription, with some alternative splicing mechanism is the method of transcription. The virus exits the host cell by nuclear pore export. Sea lions serve as the natural host.[1]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
LambdatorquevirusSea lionsNoneCell receptor endocytosisBuddingNucleusNucleusVertical; horizontal

References
  1. "Viral Zone". ExPASy. Retrieved 13 August 2015.
  2. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 13 August 2015.
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