Quambiviridae

VIRION

Capsidless: Viroids do not code for proteins and therefore cannot build a virion structure.

GENOME

Circular, ssRNA(-) genome of 4.5-5.1 kb. Most of the genome displays complementary strands. Replication occurs by rolling circle, single genome being cleaved/ligated by ribozymes.

GENE EXPRESSION

Encodes for two proteins.

ENZYMES

• RNA-dependent RNA polymerase [A0A7S7YF62]

REPLICATION

1. Virus infects cell presumably through cell-to-cell transport.
2. Symmetric rolling circle replication
3. New genomes exit the cell presumably using cell-to-cell transport.