Two of the most strongly affected alternative exons in murine NSCs,Myo18a exon 38 (Figure 5A)and Erbin exon 21 (Erbb2ip, a direct binding-partner of the breastcancer oncogene HER2/Erbb2) were conserved in the human genome and detected in thetranscriptomes of all analyzed breast tumors and controls. The gene discussed is ERBB2; the disease is breast neoplasm.