In this line, SNV or deletions in the AT‐rich interactive domain 2 (ARID2) were detected at low frequencies in various tumors,27, 28, 29 and SMARCA4 (BRG1), which is a core component of both SWI/SNF‐A and B complexes, was reported as essential for maintenance of stemness of AML.30, 31. The gene discussed is SMARCA4; the disease is acute myeloid leukemia.