Comparison between UTR sizes predicted using different methods. (a) Comparison between the 5’-UTR size predicted by ORA and 5’-RACE in the S288c strain. Positive values indicate transcripts with larger 5’-UTR size in the prediction obtained with ORA. (b) Comparison between the 3’-UTR size obtained with ORA and the tiling arrays (S288c strain). Positive values indicate transcripts with larger 3’-UTRs in the prediction obtained using ORA. Note the slight underestimation of the 3’-UTR size obtained using ORA. (c) Histogram reporting the difference between the length of the 5’-UTR in S288c predicted by Cufflinks and by 5’-RACE. Positive values indicate a larger 5’-UTR determined by Cufflinks. Note the slight overestimation of the 5’-UTR size obtained using Cufflinks.