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81.001. Satellite Viruses

Cite this publication as: ICTVdB Management (2006). 81.001. Satellite Viruses. In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA

Cite this site as: ICTVdB - The Universal Virus Database, version 4. http://www.ncbi.nlm.nih.gov/ICTVdb/ICTVdB/

Table of Contents

Classification

This is a description of a vertebrate satellite virus at the category equivalent to family level.

ICTVdB Virus Code: 81.001. Virus accession number: SV810100.

Name, Synonyms and Lineage

The taxon is an artificial holding bin for unassigned species.

Virion Properties

Nucleic acid is not encapsidated and virus relies for encapsidation on a helper virus.

Virion Properties

Morphology

Satellite capsid is isometric and exhibits icosahedral symmetry with a diameter of 26-28 nm. Capsids appear round.

Capsids can be penetrated by stain and some appear dark in the center; virus is associated with a helper virus.
























Electron micrograph of adeno-associated viruses by Stuart McNulty, Queens University, Belfast, UK.



Electron micrograph of adenovirus and satellite by C. Büchen-Osmond.

Nucleic Acid

The genome is monopartite, only one particle size is recovered of linear, negative-sense and positive-sense, single-stranded, or double-stranded DNA. The complete genome is 4700 nucleotides long, is sequenced and complete sequence is about 4700 nucleotides long. The genome has terminally redundant sequences. The terminally redundant sequences have of 145 nucleotides has inverted terminal repetitions with a palindromic sequence (or the first 125).

Genome Organization and Replication

By itself, genomic nucleic acid is infectious (under permissive conditions. Under non-permissive conditions the dependovirus genome integrates in the host genome to establish a latent infection).

Translation: Virions are associated with helper virus and dependent on co-infection of helper virus during replication, or are associated with helper virus, but independent from its functions during replication (under permissive conditions in cultured cells. Helper viruses are adenovirus or herpesvirus which render the intracellular environment permissive for replication).

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Animalia.

Taxonomic Structure of the Genus

Type species 00.050.1.03.001. Adeno-associated virus 2 .

Species in the Genus

List of Species in the Genus .

Data Sources and Contributions

The description has been compiled from data in the ICTV Report presented by Mayo MA, Berns KI, Fritsch C, Kaper JM, Jackson AO, Leibowitz MJ, Taylor JM.

References

The following generic references are cited in the most recent ICTV Report.

Taxonomic Proposals and Changes

Satellites with ssDNA are encapsidated in satellite-encoded protein structures. Their species belong to the genus 50.1.3. Dependovirus in the family 50. Parvoviridae.



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DELTA - DEscription Language for TAxonomy developed by Dr Mike Dallwitz, Toni Paine and Eric Zurcher, CSIRO Entomology, Canberra, Australia. ICTVdB - The Universal Virus Database, developed for the International Committee on Taxonomy of Viruses by Dr Cornelia Büchen-Osmond is written in DELTA. The virus descriptions in ICTVdB are coded by, or using data from experts in the field of virology or members ICTV. The character list is the underlying code. All virus descriptions are based on the character list and natural language translations are automatically generated and formatted for display on the Web from the descriptions in DELTA-format. The description has been generated automatically from DELTA files. DELTA - DEscription Language for TAxonomy developed by Dr Mike Dallwitz, Toni Paine and Eric Zurcher, CSIRO Entomology, Canberra, Australia.

ICTVdB - The Universal Virus Database, developed for the International Committee on Taxonomy of Viruses (ICTV) by Dr Cornelia Büchen-Osmond, is written in DELTA. The virus descriptions in ICTVdB are coded by ICTV members and experts, or by the ICTVdB Management using data provided by the experts, the literature or the latest ICTV Report. The character list is the underlying code. All virus descriptions are based on the character list and natural language translations from the encoded descriptions are automatically generated and formatted for display on the Web.

Developer of the DELTA software: M. J. Dallwitz, T. Paine and E. Zurcher

ICTVdB and DELTA related References

Comments to ICTVdB Management
Last updated on 25 April 2006 by Cornelia Büchen-Osmond
Copyright © 2002    International Committee on Taxonomy of Viruses.    All rights reserved.


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