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Giardiavirus

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Giardiavirus
Virus classification
Group:
Group III (dsRNA)
Family:
Totiviridae
Genus:
Giardiavirus
Type Species
  • Giardia lamblia virus

Giardiavirus is a genus of viruses, in the family Totiviridae. Protozoa serve as natural hosts. There is currently only one species in this genus: the type species Giardia lamblia virus.[1][2]

Taxonomy

Group: dsRNA

Order: Unassigned
  • Family: Totiviridae
    • Genus: Giardiavirus
      • Giardia lamblia virus

[2]

Structure

Viruses in Giardiavirus are non-enveloped, with icosahedral geometries, and T=2 symmetry. The diameter is around 36 nm. Genomes are linear, around 6277kb in length. The genome has 2 open reading frames.[1]

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Giardiavirus Icosahedral T=2 Non-enveloped Linear Monopartite

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment to host receptors, which mediates endocytosis. Replication follows the double-stranded RNA virus replication model. Double-stranded rna virus transcription is the method of transcription. Translation takes place by -1 ribosomal frameshifting, and viral initiation. Protozoa serve as the natural host.[1]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Giardiavirus Protozoa None Cell receptor endocytosis Exocytosis Cytoplasm Cytoplasm Passive diffusion

References

  1. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. ^ a b ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.

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