Functional Role of circRNAs in the Regulation of Fetal Development, Muscle Development, and Lactation in Livestock

Figure 1

The main formation of circRNAs: 1: circRNAs are formed after introns in the lasso structure are excised; 2: intron pairing driving cyclization, thus forming circRNAs; 3: the RNA-binding protein specifically binds to flanking introns at both ends of the RNA, thus forming circRNAs.