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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.

00.058.1.02. Parapoxvirus

Cite this publication as: ICTVdB Management (2006). 00.058.1.02. Parapoxvirus. 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: 00.058.1.02. Virus accession number: 058102GE. Obsolete virus code: 58.1.2.; superceded accession number: 58120000.
NCBI Taxon Identifier NCBI Taxonomy ID: 10257.

Name, Synonyms and Lineage

Synonym(s): Orf subgroup. Virus is of the subfamily 00.058.1. Chordopoxvirinae; of the family 00.058. Poxviridae.

Virion Properties

Morphology

Virions consist of an envelope, a surface membrane, a core, and lateral bodies, or a surface membrane, a core, and lateral bodies. During their life cycle, virions produce extracellular particles and produce intracellular particles; can occur in two phenotypes; may be enveloped during their extracellular phase. The infection is initiated by extracellular virions. Virus may be sequestered within inclusion bodies that are not occluded and typically contain one nucleocapsid. Virus capsid is enveloped and virions mature naturally by budding through the membrane of the host cell. Virions are generally ovoid, or pleomorphic, cocoon-shaped. Virions measure 160-190 nm in diameter; 250-300 nm in length and display regular spiral filaments which give rise to a cross-hatched pattern. The core is biconcave with two lateral bodies. Lateral bodies are lens-shaped. Nested between the core membrane, or between the surface membrane. Contains a folded nucleoprotein thread.
























Additional electron micrograph of Poxviridae are found in the Picture Gallery.

Nucleic Acid

The genome is not segmented and contains a single molecule of linear double-stranded DNA. The complete genome is 130000-150000 nucleotides long. The genome has a guanine + cytosine content of 64 %. The genome has terminally redundant sequences. The terminally redundant sequences have reiterated inverted terminal sequences which are tandemly repeated; are reiterated internally. The genome sequence is repeated at both ends. Double-stranded DNA is covalently. Double-stranded DNA is cross-linked at both ends.

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

The viral genome encodes structural proteins and non-structural proteins.

Lipids

Lipids are present and located in the envelope. Virions are composed of 4% lipids by weight. The composition of viral lipids and host cell membranes are similar. The lipids are host derived and synthesized de novo (during the early phase of virus replication) and are derived from plasma membranes. Viral membranes include glycolipids.

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 and Artiodactyla;
Family Hominidae.
Virus infects Homo sapiens (human).

Taxonomic Structure of the Genus

Type species 00.058.1.02.001. Orf virus .

Species in the Genus

List of Species in the Genus.

Tentative Species in the Genus

Tentative Species in the Genus.

Data Sources and Contributions

The description has been compiled from data in the ICTV Report presented by Esposito JJ, Baxby D, Black DN, Dales S, Darai G, Dumbell KR, Granados RR, Joklik WK, McFadden G, Moss B, Moyer RW, Pickup DJ, Robinson AJ, Tripathy DN.

References

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

PubMed References.

Images

Taxon images: • EM courtesy of Frank Fenner. • 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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