Notes on Genus: Spiromicrovirus
Type member: Spiroplasma phage 4
This is one of the genera in the family Microviridae
. Members infect mycoplasmas.
Virions isometric (icosahedral), not enveloped, 26-32 nm in diameter with small surface projections.
Monopartite, positive sense, circular ssDNA c.
4.5 kb in length.
Genus Genomic Organization
About 9 ORFs are translated from closely spaced or overlapping genes.
Type Member Genomic Organization
There are 9 closely spaced or overlapping ORFs:
|P7 capsid protein||60.4|