Among the 218 patients with B-ALL and ZNF384 rearrangements, information on the partner gene was available for 193 cases with frequencies of 43% for EP300, located at position 22q13.2 (n = 83, 31% for TCF3 at 19p13.3 (n = 60), 9% for TAF15 at 17q12 (n = 17), 8% for CREBBP at 16p13.3 (n = 15), and 9% for others (n = 18) (Supplementary Table 2). The gene discussed is EP300; the disease is acute lymphoblastic leukemia.