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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.

00.030.0.02.001.00.003. Duck hepatitis B virus, isolate DHBV26

Cite this publication as: ICTVdB Management (2006). 00.030.0.02.001.00.003. Duck hepatitis B virus, isolate DHBV26. 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

Isolate Description

Isolate designation: DHBV26.
Isolation date: not specified.
Location: not specified.

Host of Isolate and Habitat Details
Source of isolate: not specified.

Collection and Isolation Details
Virus was isolated by unknown.

Classification

This is a description of a vertebrate virus at the isolate level.

ICTVdB Virus Code: 00.030.0.02.001.00.003. Virus accession number: 30002301.
NCBI Taxonomy Identifier Taxon ID: 12639.

Name, Synonyms and Lineage

Acronym(s): DHBV2. Virus is assigned to species 00.030.0.02.001. Duck hepatitis B virus of the genus Avihepadnavirus; family 00.030. Hepadnaviridae.

Virion Properties

Morphology

Virions consist of an envelope and a nucleocapsid. Virus capsid is enveloped by a detergent sensitive lipoprotein (7 nm). Virions are spherical to pleomorphic (at times, filamentous forms occur and spherical structures that lack cores are common (HBsAg particles). Virions measure 40-48 nm in diameter, or 22 nm in diameter (for the HBsAg particles of variable length). Capsid/nucleocapsid is round and exhibits icosahedral symmetry. The nucleocapsid is isometric and has a diameter of 30-35 nm.

Incomplete particles are common.

Nucleic Acid

The genome is not segmented and contains a single molecule of circular. The genome is -RT. The genome is partially double-stranded DNA that forms a covalently closed circle (with 5' end of the full length minus strand which is linked to the viral DNA polymerase). Sequence can be accessed from GenBank. The DNA is fully sequenced, complete sequence is 3024 nucleotides long. Sequence has the accession number [X58569]. The genome has a guanine + cytosine content of 48 %. The genome sequence has termini with cohesive ends. The negative-sense or non-coding strand (complementary to the viral mRNA) is full-length. The positive sense strand (the viral mRNA) is shorter than full-length and stops at a unique site on full length negative strand opposite at a position 50 nucleotides downstream from the 5' end of the positive sense strand. The 5'-end of the negative-sense strand has a covalently attached terminal protein. The positive-sense strand has a 5' capped oligoribonucleotide primer. The 3'-terminus has conserved nucleotide sequences of 1 nucleotides in length.

Reference to nucleotide sequence in PubMed: reference(s). GenBank records for nucleotide sequences; complete genome sequences.

Proteins

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

Non-Structural Proteins: The virus codes for an RNA-dependent DNA polymerase.

Lipids

Lipids are present and located in the envelope and empty particles (HBsAG components). The composition of viral lipids is known. The composition of viral lipids and host cell membranes are similar. The lipids are derived from a host membrane compartment intermediate between and are derived from endoplasmatic reticulum membranes and Golgi membranes. Viral membranes include phospholipids, cholesterol, cholesterol esters, and triglycerides.

Translation: Replication involves a reverse transcription step.

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 Aves.

Class Aves Order Anseriformes; virus infects Anatidae.
Virus infects Anas (duck).

References

PubMed References.

The description has been generated automatically from DELTA files.

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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