HL-60 cells do not have any reported mutations for EZH1/KTM6B, EZH2/KTM6A, G9A/EHMT2 or GLP/EHMT1 as reported by the Catalogue of Somatic Mutations in Cancer (COSMIC v97, https://cancer.sanger.ac.uk/cosmic) and cBioPortal (https://www.cbioportal.org/) analysis of the Cancer Cell Line Encyclopedia (https://sites.broadinstitute.org/ccle/) (Cerami et al., 2012; Ghandi et al., 2019). The gene discussed is EZH1; the disease is cancer.