TET1 Antibody – Rabbit Polyclonal

DNA methylation is an epigenetic mechanism that is important for controlling gene expression. The protein encoded by this gene is a demethylase that belongs to the TET (ten-eleven translocation) family. Members of the TET protein family play a role in the DNA methylation process and gene activation. [provided by RefSeq, Sep 2015]

TET1: Dioxygenase that catalyzes the conversion of the modified genomic base 5-methylcytosine (5mC) into 5- hydroxymethylcytosine (5hmC). Might initiate a process leading to cytosine demethylation through deamination into 5- hydroxymethyluracil (5hmU) and subsequent replacement by unmethylated cytosine by the base excision repair system. Methylation at the C5 position of cytosine bases is an epigenetic modification of the mammalian genome which plays an important role in transcriptional regulation. Preferentially binds to CpG-rich sequences at promoters of both transcriptionally active and polycomb-repressed genes. By controlling the levels of 5mC and 5hmC at gene promoters, it may regulate the gene expression silencing induced by cytosine methylation. May have a dual function by also repressing the expression of a subset of genes through recruitment of transcriptional repressors to promoters. Involved in the balance between pluripotency and lineage commitment of cells it plays a role in embryonic stem cells maintenance and inner cell mass cell specification. A chromosomal aberration involving TET1 may be a cause of acute leukemias. Translocation t(10;11)(q22;q23) with MLL. This is a rare chromosomal translocation 5' MLL-TET1 3'. Belongs to the TET family.

Protein type: DNA-binding; EC 1.14.11.n2; Oxidoreductase

Chromosomal Location of Human Ortholog: 10q21

Cellular Component: nucleus

Molecular Function: iron ion binding; structure-specific DNA binding

Biological Process: inner cell mass cell differentiation; positive regulation of cell proliferation; positive regulation of histone methylation; positive regulation of transcription from RNA polymerase II promoter; protein amino acid O-linked glycosylation; stem cell maintenance