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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.

00.101.0.01.001. Cricket paralysis virus

Cite this publication as: ICTVdB Management (2006). 00.101.0.01.001. Cricket paralysis 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 an invertebrate virus at the species level.

ICTVdB Virus Code: 00.101.0.01.001. Virus accession number: 10101001. Obsolete virus code: 52.U.0.0.001; superceded accession number: 52u00001.
NCBI Taxon Identifier NCBI Taxonomy ID: 12136.

Name, Synonyms and Lineage

ICTV approved acronym: CrPV. Virus is the type of the genus 00.101.0.01. Cripavirus in the family 00.101. Dicistroviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped, round with icosahedral symmetry. The isometric capsid has a diameter of 27-30 nm. Capsids appear round. The capsid consists of 12 capsomers.

Capsid structures, detailed structural and computational analysis are found in the Protein Data Bank (PDB) using VIPERdB, the VIrus Particle ExploreR 1b35.

Physicochemical and Physical Properties

Virions have a buoyant density in CsCl of 1.35-1.37 g cm-3.

Nucleic Acid

The genome is not segmented and contains a single molecule of linear positive-sense, single-stranded RNA. The genome is infectious. The complete genome is 9185 nucleotides long. The RNA is fully sequenced, complete sequence is 9185 nucleotides long. Sequence has the accession number [AF218039]. The 5'-terminal sequence has almost complete hairpin structures; 5'-end of the genome has a genome-linked protein (VPg). The 5'-terminus has a poly (C) tract. The 3'-terminus has a poly (A) tract.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

Proteins have been characterized and functions are assigned to them.

The viral genome encodes structural proteins, or non-structural proteins. Virions consist of 3 structural protein(s) located in the capsid.

Structural Proteins: Capsid protein CP1. Capsid protein has a molecular mass of 100298 Da; has been sequenced; sequence has the accession number [Q9IJX3]; is forming the nucleocapsid; has been cleaved during post-translational processing from the precursor protein. Capsid protein CP2; has a molecular mass of 25-40 kDa; is the product of the polyprotein gi:8895508. Capsid protein CP3; has a molecular mass of 25000 Da. Capsid protein is small and analogous to VP4 of the picornaviruses; has a molecular mass of less than 10000 Da; has been cleaved during post-translational processing from the precursor protein (during processing one of the larger capsid proteins).

Virus-coded non-structural proteins have been deduced from amino acid sequences. Non-Structural Proteins: Three non-structural protein(s) are found (dervide from the non-struvtural polyprotein). The virus codes for an RNA-dependent RNA polymerase. In addition to the polymerase, the virus codes for enzymes such as cystein proteinase and helicase. Is the product of the polyprotein encoded towards the 5' end of the genome of ORF1. The sequence has the accession number [AAF80998].

Lipids

Lipids are absent.

Genome Organization and Replication

By itself, genomic nucleic acid is infectious.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Animalia.

Kingdom Animalia
Phylum Arthropoda.

Phylum Arthropoda
Subphylum Hexapoda; Class Insecta.

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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