DNA Methyltransferase 1, Control Peptide (DNMT3L) Antibody – Mouse Monoclonal

CpG methylation is an epigenetic modification that is important for embryonic development, imprinting, and X-chromosome inactivation. Studies in mice have demonstrated that DNA methylation is required for mammalian development. This gene encodes a nuclear protein with similarity to DNA methyltransferases, but is not thought to function as a DNA methyltransferase as it does not contain the amino acid residues necessary for methyltransferase activity. However, it does stimulate de novo methylation by DNA cytosine methyltransferase 3 alpha and is thought to be required for the establishment of maternal genomic imprints. This protein also mediates transcriptional repression through interaction with histone deacetylase 1. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2012]

DNMT3L: Catalytically inactive regulatory factor of DNA methyltransferases. It is essential for the function of DNMT3A and DNMT3B. Activates DNMT3A and DNMT3B by binding to their catalytic domain. Accelerates the binding of DNA and AdoMet to the methyltransferases and dissociates from the complex after DNA binding to the methyltransferases. Recognizes unmethylated histone H3 lysine 4 (H3K4) and induces de novo DNA methylation by recruitment or activation of DNMT3. Belongs to the C5-methyltransferase family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Transcription, coactivator/corepressor; Amino Acid Metabolism - cysteine and methionine

Chromosomal Location of Human Ortholog: 21q22.3

Cellular Component: cytosol; nucleus

Molecular Function: protein binding; enzyme binding; metal ion binding; enzyme activator activity

Biological Process: positive regulation of catalytic activity; genetic imprinting; DNA methylation; spermatogenesis; gene expression; negative regulation of transcription, DNA-dependent; DNA methylation on cytosine; regulation of gene expression, epigenetic