Our initial cell line panel included one nutlin-3-adapted neuroblastoma cell line (UKF-NB-3rNutlin10μM) that harbours a G245C loss-of-function TP53 mutation [26] and displayed 2.4-fold reduced YM155 sensitivity relative to the parental UKF-NB-3 cells (Table S1). The gene discussed is TP53; the disease is neuroblastoma.