About The Medical Condition Satellite RNA
Find the definition of the medical term Satellite RNA. Satellite RNA defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Satellite RNA
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What's The Definition Of The Medical Condition Satellite RNA?
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)
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