Analogously to what has been observed in the GBM patients carrying the BCAN-NTRK1 fusion (Supplementary Fig. 5c), the generation of the Bcan-Ntrk1 rearrangement led to exceptionally high levels of the Ntrk1 3′ mRNA region involved in the gene fusion (Fig. 4d, bottom right panel). This evidence concerns the gene BCAN and glioblastoma.