Notes on Genus: Circular satellite RNAs

no particles of their own

Type member:

Contents

Members of this Genus
General Description
Morphology
Electron Micrograph
Genome
Genus Genomic Organization
Genome Map
Type Member Genomic Organization
All Known Sequences
Curated Sequences

General Description

This is one of three groups of ss satellite RNAs. Like the other groups, the RNA is encapsidated within the coat protein of its helper virus. Members are distinguished by having small genomes of about 350 nucleotides, which do not encode any functional protein and which are sometimes present as circular molecules.

Morphology

There are no distinctive virions, because the satellite RNA is encapsidated by the helper virus.

Genome

Monopartite, single-stranded, RNA of c. 350 nucleotides.

Genus Genomic Organization

The RNA does not encode any functional protein. The replication of at least some members involves self-cleavage of circular progeny molecules by an RNA-catalysed reaction.

Type Member Genomic Organization

The RNA of c. 360 nucleotides does not encode any functional protein.