From MicrobeWiki, the student-edited microbiology resource
Revision as of 16:05, 14 June 2006 by Chochu444 (talk | contribs) (Genome Structure)
Jump to: navigation, search

Baltimore Classification

Higher order taxa

Viruses; dsRNA viruses; Birnaviridae


Aquabirnavirus, Avibirnavirus, Entomobirnavirus

Description and Significance

Birnaviruses infect animals: vertebrates, insects, molluscs and crustaceans. They are bi-RNA viruses and have double stranded RNA genomes in two components.

Genome Structure

The genome of Binyaviridae is segmented and consists of linear double-stranded RNA. Minor species of non-genomic nucleic acid are also found in virions. The complete genome is 5880-6400 nucleotides long. Segment A has been fully sequenced and the complete sequence is 3100-3200 nucleotides long while segment B is 2750-2850 nucleotides long. The genome guanine+cytosine content is 45.5-54.5 %. The 5'-end of the genome has a cap on both segments genome-linked protein (VPg). The multipartite genome is found in one type of particle only. (source ICTV dB Descriptions)

Virion Structure of a Birnaviridae

Reproduction Cycle of a Birnaviridae in a Host Cell

Viral Ecology & Pathology