RNA, Satellite

Small, linear single-stranded RNA molecules functionally acting as molecular parasites of certain RNA plant viruses. Satellite RNAs exhibit four characteristic traits: (1) they require helper viruses to replicate; (2) they are unnecessary for the replication of helper viruses; (3) they are encapsidated in the coat protein of the helper virus; (4) they have no extensive sequence homology to the helper virus. Thus they differ from SATELLITE VIRUSES which encode their own coat protein, and from the genomic RNA; (=RNA, VIRAL); of satellite viruses. (From Maramorosch, Viroids and Satellites, 1991, p143)

Year introduced: 1997

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Tree Number(s): D13.444.735.721

MeSH Unique ID: D019244

Entry Terms:

• Satellite RNA
• Satellite RNAs
• RNAs, Satellite

Previous Indexing:

• RNA (1981-1996)
• RNA, Viral (1974-1996)

See Also:

• Helper Viruses
• Satellite Viruses

All MeSH Categories
Chemicals and Drugs Category
Nucleic Acids, Nucleotides, and Nucleosides
Nucleic Acids
RNA
RNA, Satellite
Cucumber Mosaic Virus Satellite