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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.

00.005.0.01. Mamastrovirus

Cite this publication as: ICTVdB Management (2006). 00.005.0.01. Mamastrovirus. 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 virus at the genus level.

ICTVdB Virus Code: 00.005.0.01. Virus accession number: 005001GE. Obsolete virus code: 05.0.1.; superceded accession number: 05010000.
NCBI Taxon Identifier NCBI Taxonomy ID: 249588.

Name, Synonyms and Lineage

The taxon has the accepted ICTV name.

Synonym(s): Astrovirus. Virus is of the family 00.005. Astroviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped, round with polyhedral symmetry. The isometric capsid has a diameter of 27-30 nm. Capsids appear round. The capsid surface structure reveals a regular pattern with distinctive features (star-like with six points). The capsomer arrangement is clearly visible. Surface projections are small, surface appears rough, spikes protruding from the 12 vertices.

Capsids can be penetrated by stain and some appear dark in the center.

Physicochemical and Physical Properties

Virions have a buoyant density in CsCl of 1.36-1.39 g cm-3.

Nucleic Acid

The genome is not segmented and contains a single molecule of linear, positive-sense, single-stranded RNA. The complete genome is about 6800-7900 nucleotides long. The genome has a guanine + cytosine content of 45 %. The 3'-terminus has a poly (A) tract. Each virion contains a longer than full length copy.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

The viral genome encodes structural proteins.

Lipids

Lipids are absent.

Biological Properties

Natural Host

Virus infects during its life cycle a single type of vertebrate host.
Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Animalia.

Kingdom Animalia
Phylum Chordata.

Phylum Vertebrata
Subphylum Vertebrata; Class Mammalia.

Class Mammalia Order Primates, or Carnivora, or Rodentia.

Taxonomic Structure of the Genus

Type species 00.005.0.01.001. Human astrovirus 1 .

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 Monroe SS, Carter MJ, Herrmann JE, Kurtz JB, Matsui SM.

References

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

PubMed References.

Taxonomic Proposals and Changes

A taxonomic proposal has been submitted to the ICTV by the Vertebrate Virus Subcommittee, Study Group for Astroviridae at the meeting in Washington, DC, April 2001 to split the taxon (Astrovirus into Mamastrovirus and Aviastrovirus). The proposal has been approved at the meeting of the Executive Committee in Paris, 2002.

Images

Taxon images: • EM by Cornelia Büchen-Osmond. • EM from Stewart McNulty, Queens University, Belfast.



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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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