MLL5 Proteins and Enzymes

MLL5 is a divergent member of the Drosophila Trithorax related SET and PHD domain containing chromatin regulators that are involved in the regulation of transcriptional memory during differentiation. Human MLL5 is located on chromosome 7q22, that is frequently deleted in myeloid leukemias. Inactivation of the Mll5 gene in mice results in a reduction in the average representation of hematopoietic stem cells, and in functional impairment of long term hematopoietic repopulation potential under competitive conditions. Overexpression of the protein also inhibits cell cycle progression.