Notes on Genus: Inovirus
Type member: Enterobacteria phage M13
This is one of the genera in the family Inoviridae
. Members are distinguished by having flexuous filamentous particles and because they infect enterobacteria.
Virions are filamentous and slightly flexuous, 7 nm in diameter and 700-2000 nm in length depending on the species. One end is more or less blunt but the other, which has the adsorption proteins for attachment to the bacterial host, may appear pointed in electron micographs.
Monopartite, circular, positive sense, ssDNA, 5-9 kb in length.
Genus Genomic Organization
About 10 ORFs are translated from closely spaced or overlapping genes.
Type Member Genomic Organization
There are 10 closely spaced or overlapping ORFs:
|VII||3.6||Minor capsid protein: phage assembly|
|IX||3.6||Minor capsid protein|
|VIII||7.6||Major capsid protein |
|III||44.6||Adsorption protein |