In the ovarian cancer TCGA RNA dataset, the expression levels of exons surrounding breakpoints of IGF2BP2 and TESPA1 did not change (Supplementary Fig. 9a, b), and the overall expression of the genes did not correlate in any patient, suggesting that we detected an uncommon, patient-specific fusion (Supplementary Fig. 9c). Here, IGF2BP2 is linked to ovarian cancer.