The QSOX2 gene encodes quiescin sulfhydryl oxidase 2, a member of the sulfhydryl oxidase/quiescin-6 (Q6) family (QSOX1), which are involved in the sensitization of neuro-blastoma cells for IFN-gamma (IFNG)-induced cell death. The gene discussed is QSOX2; the disease is blastoma.