KMT2A and leukemia: Consistently, we found a significant enrichment of H3K4me3 marks in the promoter regions of CD300A gene in three types of leukemia cells from published ChIP‐seq datasets (K562 cells from GSE74359; MLL‐AF9 blast cells from GSE89336; KG‐1 cells from GSE109619) (Figure 2D).