Ribonuclease T1 generates circular RNA molecules from viroid-specific RNA transcripts by cleavage and intramolecular ligation.
Nucleic Acids Res. 1991 Apr 11;19(7):1605-12. doi: 10.1093/nar/19.7.1605.
Nucleic Acids Res. 1991.
PMID: 1709278
Free PMC article.