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. Author manuscript; available in PMC: 2018 Aug 1.
Published in final edited form as: J Am Coll Cardiol. 2017 Aug 1;70(5):590–606. doi: 10.1016/j.jacc.2017.05.067

Figure 2. Noncoding RNA.

Figure 2

(A) Schematic overview of the transcriptome and the classification of RNA as coding or noncoding, with the different species of noncoding RNA. (B) Different mechanisms of action of noncoding RNAs in epigenetic regulation. circRNA = circular RNA; lncRNA = long noncoding RNA; Me = methyl; miRNA = microRNA; ORF = open reading frame; piRNA = Piwi-interacting RNA; rasiRNA = repeat-associated small interfering RNA; RISC = RNA-induced silencing complex; RNA pol = RNA polymerase; scaRNA = small Cajal body-specific RNA; siRNA = small interfering RNA; snoRNA = small nucleolar RNA; snRNA = small nuclear RNA; tiRNA = transcription initiation RNA;