To evaluate the generalizability of the two novel distant gene fusions that we verified experimentally, we tested for the presence of both SEC31A-C6orf62 and IRS2-NUFIP1 by qRT-PCR in an additional 51 primary prostate tumor samples, but were unable to detect these fusions in any of these other samples, indicating that they are private fusion events. This evidence concerns the gene IRS2 and prostate neoplasm.