Re-expression of ATAD1 in the Del(10q23) cell lines HGC27 (gastric cancer), SW1088 (glioma), or RPMI7951 (melanoma) suppressed toxicity caused by various structurally distinct proteasome inhibitors (Figure 3A–C, Figure 3—figure supplement 2A–E). This evidence concerns the gene ATAD1 and gastric cancer.