Notes on Genus: Zetatorquevirus
icosahedra
Type member: Torque teno douroucouli virus
Contents
General Description
This is one of the genera in the family
Anelloviridae and contains viruses from
Douroucouli (owl monkey) with a genome of 3.7 kb. The genus name is partly derived from the latin
torques, for necklace which reflects the circular nature of the genome.
Morphology
Virions isometric (icosahedral), not enveloped, 19-27 nm in diameter.
Genome
Monopartite circular single-stranded DNA of 3.7 kb.
Genus Genomic Organization
There are two major overlapping ORFs encoding a replication-associated protein and a (larger) coat protein. A possible additional ORF has also been identified.
Type Member Genomic Organization
There are two major overlapping ORFs: the largest (ORF1) encodes a 86 kDa coat protein and the other (ORF2) a 14 kDa replication-associated protein. There is also a putative ORF3 of 16 kDa (function unknown).