Fig. 3From: Deep Insights in Circular RNAs: from biogenesis to therapeuticsCircular Intronic RNA Biogenesis. Splicing reaction at GU rich sequences near 5′ splice site [RED) and C rich sequences near 3′ branch point [YELLOW) forms a lariat intron with 3′ tail downstream from the branch point to generate a stable Intronic circRNABack to article page