Lambdatorquevirus is a genus of viruses, in the family Anelloviridae. Sea lions serve as natural hosts. There are five species in this genus.
Taxonomy The genus contains the following species:
Lambdatorquevirus phoci1 Lambdatorquevirus phoci2 Lambdatorquevirus phoci3 Lambdatorquevirus phoci5 Lambdatorquevirus phoci6
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.
Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentationLambdatorquevirusIcosahedralT=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.
Genus Host details Tissue tropism Entry details Release details Replication site Assembly site TransmissionLambdatorquevirusSea lionsNoneCell receptor endocytosisBuddingNucleusNucleusVertical; horizontal
References
External links Viralzone: Lambdatorquevirus ICTV