Notes on Genus: Arenavirus

enveloped pleomorphic

Type member: Lymphocytic choriomeningitis 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 Arenavirus is the only genus in the family Arenaviridae. It is named from the Latin arena = sand, because of the sand-like appearance of ribosomes in thin sections of particles.

Morphology

Virions pleomorphic, enveloped, 50-300 nm in diameter, with club-shaped (8-10 nm) projections. Host ribosomes are usually present with the particles.

Genome

Bipartite single-stranded negative sense RNA totalling about 11 kb. There is no genome-linked protein (VPg) at the 5'-terminus nor a 3'-polyA tail.

Genus Genomic Organization

Both RNAs have an ambisense coding strategy:

Type Member Genomic Organization

Both RNAs have an ambisense coding strategy: