It also promotes association with myc-associated zinc finger protein (MAS) and stimulates enhanced transcriptional activity of MAS, suggesting that circ-cux1 is involved in regulating neuroblastoma progression by targeting myc associated zinc finger protein (MAZ) through binding to EWS RNA binding protein 1 (EWSR1) (Li et al., 2019). The gene discussed is MAZ; the disease is neuroblastoma.