Notes on Genus: Gyrovirus

icosahedra

Type member: Chicken anemia virus

Contents

Members of this Genus
General Description
Morphology
Electron Micrograph
Genome
Genus Genomic Organization
Genome Map
Type Member Genomic Organization
Curated Sequences

General Description

The genus Gyrovirus is one of two genera in the family Circoviridae and currently contains a single virus with a genome larger than 2.2kb that is translated from ORFs exclusively in the virion (+) sense.

Morphology

Virions isometric (icosahedral), not enveloped, 19-27 nm in diameter.

Genome

Monopartite circular single-stranded DNA of about 2.3 kb. The origin of replication contains a nonanucleotide sequence TAGTATTAC at the apex of a stem loop.

Genus Genomic Organization

There are three overlapping ORFs in the virion (positive) sense.

Type Member Genomic Organization

There are three overlapping ORFs in the virion (positive) sense :