(C) Starvation‐induced cell death was assessed in cells expressing UBQLN1 or UBQLN1ΔUBA. The graph represents the mean of three experiments±s.e., with *P⩽0.05 (P=0.0017 by one‐way ANOVA test, comparing control, UBQLN1 and UBQLN1ΔUBA). No difference was found between control and UBQLN1ΔUBA at any time point. ANOVA, analysis of variance; GFP, green fluorescent protein; Pl, propidium iodide; UBA, ubiquitin‐associated; UBQLN, ubiquilin. 