Indeed, the DEK protein sequence contains a SUMOylation consensus motif ψ-K-X-E/D (Zhao et al., 2014) at lysine 261 (AKRE, http://jassa.fr) and DEK has been shown to be SUMOylated under stress conditions in a mass spectrometry study of H2O2-treated SH-SY5Y neuroblastoma cells (Grant, 2010). This evidence concerns the gene DEK and neuroblastoma.