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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.

00.010.0.03.001. Brome mosaic virus

Cite this publication as: ICTVdB Management (2006). 00.010.0.03.001. Brome mosaic virus. 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 plant virus at the species level with data on all virus properties from morphology to genome, replication, antigenicity and biological properties.

ICTVdB Virus Code: 00.010.0.03.001. Virus accession number: 10003001. Obsolete virus code: 10.0.3.0.001; superceded accession number: 10030001.
NCBI Taxon Identifier NCBI Taxonomy ID: 12302.

Name, Synonyms and Lineage

ICTV approved acronym: BMV. Virus is the type of the genus 00.010.0.03. Bromovirus in the family 00.010. Bromoviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped, round with icosahedral symmetry. The isometric capsid has a diameter of 26 nm. Capsids appear hexagonal in outline. The capsid consists of 32 capsomers. Virus preparations contain more than one particle component.

Capsids all have the same appearance.





















Electron micrograph of Brome mosaic virus.




















3D image of virus reconstruction frrom Viper.

Capsid structures, detailed structural and computational analysis are found in the Protein Data Bank (PDB) using VIPERdB, the VIrus Particle ExploreR 1js9.

Physicochemical and Physical Properties

Under in vitro conditions virions are stable in acid environment of pH 4-5.

Nucleic Acid

The genome is segmented; tripartite, segements are distribute among 3 particle types of different size; consists of three segments of to four segments of linear, positive-sense, single-stranded RNA. Minor species of non-genomic nucleic acid are also found in virions. The encapsidated nucleic acid is mainly of genomic origin, but virions may also contain subgenomic RNA-4, that is an mRNA derived from genomic RNA-3. The complete genome is 8900 nucleotides long and is fully sequenced. Complete RNA-1 sequence is 3200 nucleotides long. Sequence has the accession number [V00099]; [J02042]; [J02043]; [K02706]; [K02707]; [X01678]; [X02380]; [M25172]. RNA-2 is sequenced, but only an estimate is available, complete sequence is 2800 nucleotides long. RNA-3 is sequenced, but only an estimate is given, complete sequence is 2100 nucleotides long. RNA-4 has been sequenced, but only an estimate is provided, complete sequence is 800 nucleotides long. The 5'-end of the genome has a methylated nucleotide cap; cap sequence type is m7G5'ppp5. The 3'-terminus has on all genomic RNAs a tRNA-like structure (that accepts tyrosine). The multipartite genome is divided among more than one type of particle and the segments are distributed between 3 different types of particles. The largest particles contain each one molecule of RNA-1 (sedimenting component B). The medium sized particles contain each one molecule of RNA-2 (sedimenting component M). The smallest particles contain one molecule each of RNA-3 and RNA-4 (sedimenting component T).

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

The viral genome encodes structural proteins and non-structural proteins located in the capsid.

Structural Proteins: Capsid protein is involved in viral encapsidation and involved in protein movement.

Lipids

Lipids are absent.

Genome Organization and Replication

By itself, genomic nucleic acid is infectious; a successful infection by the virus requires intact RNA 3'-termini.

Transcription: Sub-genomic RNA is present in infected cells; encoding the coat protein.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

Kingdom Plantae
Phylum Magnoliophyta (Angiosperms, Class Liliopsida (Monocotyledonae).

Class Liliopsida (Monocotyledonae)
Subclass COMMELINIDAE; Order Poales;
Family Poaceae. Virus found in Bromus inermis.

References

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

PubMed References.

VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 119 by C. Büchen-Osmond, 1987.

A description of the virus is found in DPV, a database for plant viruses developed by the Association of Applied Biologists (AAB), with the number 3.

Images

Taxon images: • EM by Robert G. Milne. • EM from IACR Rothamsted.



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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
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