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. Author manuscript; available in PMC: 2018 Sep 5.
Published in final edited form as: Circ Res. 2018 Jan 5;122(1):155–166. doi: 10.1161/CIRCRESAHA.117.311802

Figure 1. Categories of RNA in mammalian cells.

Figure 1

A, A schematic of major classes of RNA. Noncoding RNAs may resemble mRNA structurally, but some can have distinctive features, such as lack of polyA tail. B, Classification of noncoding RNAs >200 bp. qPCR indicates quantitative polymerase chain reaction.