Notes on Genus: Levivirus

icosahedra

Type member: Enterobacteria phage MS2

Contents

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

General Description

This is one of the genera in the family Leviviridae. Members have a genome of less than 4 kb which encodes a separate lysis gene.

Morphology

Virions isometric (icosahedral), not enveloped, c. 26 nm in diameter.

Genome

Monopartite, linear, postive sense ssRNA of 3.5-3.6 kb.

Genus Genomic Organization

There are 4 ORFs including a single capsid protein, a replicase and a lysis protein.

Type Member Genomic Organization

The 4 ORFs are