Leviviridae
From MicrobeWiki, the student-edited microbiology resource
A Viral Biorealm page on the family Leviviridae
Contents |
Baltimore Classification
Higher order taxa
Viruses; ssRNA positive-strand viruses, no DNA stage; Leviviridae
Genera
Allolevivirus, Levivirus
Description and Significance
Leviviridae is a (+)sense single-stranded RNA virus. It is a bacteriophage and MS2 and QB infect E. coli.
Genome Structure
The genome of leviviridae is not segmented and contains a single molecule of linear positive-sense, single-stranded RNA. The complete genome is 3466-4276 nucleotides long. The genome has a base ration of 50 % guanine, 50 % adenine. (source: ICTV dB Descriptions)
Virion Structure of a Leviviridae
The bacteriophages consist of a capsid and are not enveloped. The virions are not tailed. The capsid is round and exhibits icosahedral symmetry (T=3). The isometric capsid has a diameter of about 26 nm. The capsids appear round and each capsid consists of 32 capsomers. (source: ICTV dB Descriptions)

