KMT2A lysine methyltransferase 2A
Gene ID: 4297, updated on 5-Jan-2025Gene type: protein coding
Also known as: HRX; MLL; ALL1; GAS7; HTRX; MLL1; TRX1; ALL-1; CXXC7; HTRX1; MLL1A; WDSTS
- See all available tests in GTR for this gene
- Go to complete Gene record for KMT2A
- Go to Variation Viewer for KMT2A variants
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]
Associated conditions
See all available tests in GTR for this gene
| Description | Tests |
|---|---|
| Identification of risk loci with shared effects on five major psychiatric disorders: a genome-wide analysis. GeneReviews: Not available | |
| Wiedemann-Steiner syndrome | See labs |
Copy number response
| Description |
|---|
| Copy number response Triplosensitivity No evidence available (Last evaluated 2018-05-23) ClinGen Genome Curation PageHaploinsufficency Sufficient evidence for dosage pathogenicity (Last evaluated 2018-05-23) ClinGen Genome Curation PagePubMed |
Genomic context
- Location:
- 11q23.3
- Sequence:
- Chromosome: 11; NC_000011.10 (118436492..118526832)
- Total number of exons:
- 37
Variation
| Resource | Links for this gene |
|---|---|
| ClinVar | Variants reported to ClinVar |
| dbVar | Studies and variants |
| SNP | Variation Viewer for KMT2A variants |
| Genome viewer | Explore NCBI-annotated and select non-NCBI annotated genome assemblies |
- ClinVarRelated medical variations
- dbVarLink from Gene to dbVar
- KMT2A database
- MedGenRelated information in MedGen
- OMIMLink to related OMIM entry
- PubMed (OMIM)Gene links to PubMed derived from omim_pubmed_cited links
- RefSeq RNAsLink to Nucleotide RefSeq RNAs
- RefSeqGeneLink to Nucleotide RefSeqGenes
- Variation ViewerRelated Variants
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