To test whether CELF2 regulates similar sets of target mRNAs as UNC-75, we performed CLIP-seq of mouse CELF2 using a neuroblastoma N2A cell line (http://www.atcc.org/products/all/CCL-131.aspx#generalinformation) that stably expresses BLRP (biotin ligase recognition peptide) tagged CELF2 (Figure 2—figure supplement 1B). The gene discussed is CELF2; the disease is neuroblastoma.