...SMS-KCNR cell line expressing the ALK R1275Q mutation was resistant to TAE684 (IC50 of 4.9 µM; Fig. 2a)...ALK was expressed at substantially lower levels in the TAE684-sensitive neuroblastoma cell lines [Kelly (F1174L), and SH-SY5Y (F1174L)] than in the remaining cell lines harboring either wild-type ALK or the R1275Q mutation...