SUV39H1 expression was significantly lower in a variety of leukemias, including the MLL-r AML, when compared with its expression in granulocyte-monocyte progenitor cells (GMPs) (Supplementary Fig. 1a) or with the nearest normal counterpart (Supplementary Fig. 1b), as recently published study [24]. The gene discussed is KMT2A; the disease is acute myeloid leukemia.