Self-cleavage of RNA in the replication of small pathogens of plants and animals.
The ability of certain small, circular, pathogenic RNAs of plants and animals to self-cleave at specific sites in vitro in the complete absence of protein most likely plays a central role in their replication in vivo by a rolling circle mechanism. The self-cleavage of an RNA transcript from a satellite DNA of the newt indicates that this reaction is not limited to pathogenic RNAs. Further, the site-specific self-cleavage in trans by two separate RNA molecules suggests that such reactions may be important in gene regulation in normal cells as well as in the genesis of symptom expression on infection by RNA pathogens.
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D000818:Animals; D001483:Base Sequence; D008969:Molecular Sequence Data; D009690:Nucleic Acid Conformation; D010942:Plant Viruses / Q000235:genetics*; D012367:RNA, Viral / Q000096:biosynthesis / Q000378:metabolism*; D014779:Virus Replication / Q000235:genetics
D012367:RNA, Viral