KMT2A, Official Symbol KMT2Aprovided by HGNC Official Full Name lysine methyltransferase 2Aprovided by HGNC Primary source HGNC:HGNC:7132 See related Ensembl:ENSG00000118058 MIM:159555; AllianceGenome:HGNC:7132 Gene type protein coding RefSeq status REVIEWED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as HRX; MLL; ALL1; GAS7; HTRX; MLL1; TRX1; ALL-1; CXXC7; HTRX1; MLL1A; WDSTS Summary This gene encodes a transcriptional coactivator that plays an essential role in regulating gene expression during early development and hematopoiesis. The encoded protein contains multiple conserved functional domains. One of these domains, the SET domain, is responsible for its histone H3 lysine 4 (H3K4) methyltransferase activity which mediates chromatin modifications associated with epigenetic transcriptional activation. This protein is processed by the enzyme Taspase 1 into two fragments, MLL-C and MLL-N. These fragments reassociate and further assemble into different multiprotein complexes that regulate the transcription of specific target genes, including many of the HOX genes. Multiple chromosomal translocations involving this gene are the cause of certain acute lymphoid leukemias and acute myeloid leukemias. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Oct 2010] Expression Ubiquitous expression in ovary (RPKM 12.8), lymph node (RPKM 6.8) and 25 other tissues See more Orthologs mouse all