ALK and neuroblastoma: To verify the phospho-RTK array results, immunoblotting was performed on five ALK-driven NB cell lines: CLB-BAR (ALK-amplified), CLB-GAR (ALK R1275Q), CLB-GE (ALK F1174V), NB1 (ALK-amplified), and SH-SY5Y (ALK F1174L), as well as two non-ALK-driven NB cell lines: SK-N-AS and BE2C (detailed genetic backgrounds in Supplementary Figure S1B).