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Descriptions are generated automatically from the ICTVdB database including links. Some descriptions are only very basic and links may point to documents that are not yet published on the Web.

00.008. Barnaviridae

Cite this publication as: ICTVdB Management (2006). 00.008. Barnaviridae. In: ICTVdB - The Universal Virus Database, version 3. 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 fungal virus at the family level.

ICTVdB Virus Code: 00.008. Virus accession number: 00008FAM. Obsolete virus code: 08.; superceded accession number: 08000000.
NCBI Taxon Identifier NCBI Taxonomy ID: 39741.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped. Capsid is elongated and exhibits icosahedral symmetry (T=1) (assumed, because optical diffraction patterns resemble those of Alfalfa mosaic virus). The capsid is bacilliform. Each capsomer measures 10 nm in diameter. Surface projections are not present. The capsid is bacilliform with a length with a length of 48-53 nm and a width of 18-20 nm.

Physicochemical and Physical Properties

Virions have a buoyant density in sucrose of 1.32 g cm-3. Under in vitro conditions virions are stable in acid environment of pH 6-7; stable in alkaline environment of pH 7-8. Virions are stable. Virions are sensitive to treatment with chloroform.

Nucleic Acid

The Mr of the genome constitutes about 20% of the virion by weight. The genome is not segmented and contains a single molecule of linear positive-sense, single-stranded RNA. The complete genome is 4400 nucleotides long. Genome is sequenced, but only an estimate is available, complete sequence is 4000 nucleotides long. The genome has a guanine + cytosine content of 46.3 %. Each virion contains a longer than full length copy.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

Particles are made up of 7 proteins.

The viral genome encodes structural proteins. Virions consist of 1 structural protein(s) located in the capsid.

Structural Proteins: Capsid protein (CP), a single major protein. Capsid protein has a molecular mass of 24400 Da with 240 copies per virion.

Lipids

Lipids are not reported.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Fungi.

Kingdom Fungi
Phylum Basidiomycota (Club Fungi).

Taxonomic Structure of the Family

00.008.0.01. Barnavirus.

Data Sources and Contributions

The description has been compiled from data in the ICTV Report presented by Romaine CP.

References

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

PubMed References.



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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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