show Abstracthide AbstractWe report the genome wide distribution of H3K79 dimethylation in mouse MLL-AF6 positive leukemias to assess whether this epigenetic mark drives MLL-target gene expression. Overall design: Examination of H3K79 dimethylation in bone marrow cells from sacrificed terminally ill MLL-AF6 positive leukemic mice. The retroviral MSCV-IRES-neo-MLL-AF6 construct was transduced into mouse bone marrow lineage negative Kit +, Sca + (LSK) cells and these cells were injected after G418 selection into irradiated syngenic mice to establish MLL-AF6 positive leukemias.