(A) A schematic of the circRNA polysome profiling for translating circRNAs. (B) (Poly)ribosome fractionations of cells transfected with oligo library split-eGFP circRNA reporter followed by CHX treatment. (C) Quantification of the percentage of (poly)ribosome-enriched oligos of captured eGFP(−) or eGFP(+) oligos. (D) Sequencing reads from Ribo-seq and QTI-seq plotted on the genes showing eGFP(+) oligos harboring aTIS, nTIS, and dTIS with overlapping annotated circRNAs (brown segments). (E) Quantification of the percentage of eGFP(−) or eGFP(+) oligos harboring no TIS (TIS(−)) (left) or more than one TIS (TIS(+)) (right), and the percentage of aTIS, nTIS, or dTIS oligos among eGFP(+)/TIS(+) oligos.