TET3 Antibody – Rabbit Polyclonal

TET3: Dioxygenase that catalyzes the conversion of the modified genomic base 5-methylcytosine (5mC) into 5- hydroxymethylcytosine (5hmC) and plays a key role in epigenetic chromatin reprogramming in the zygote following fertilization. Conversion into 5hmC initiates a process leading to cytosine demethylation through deamination into 5-hydroxymethyluracil (5hmU) and subsequent replacement by unmethylated cytosine by the base excision repair system. In zygotes, DNA demethylation occurs selectively in the paternal pronucleus before the first cell division, while the adjacent maternal pronucleus and certain paternally-imprinted loci are protected from this process. Participates in DNA demethylation in the paternal pronucleus by mediating conversion of 5mC into 5hmC. Does not mediate DNA demethylation of maternal pronucleus because of the presence of DPPA3/PGC7 on maternal chromatin that prevents TET3-binding to chromatin. Belongs to the TET family. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Oxidoreductase; EC 1.14.11.n2

Chromosomal Location of Human Ortholog: 2p13.1

Cellular Component: male pronucleus; cytoplasm; female pronucleus

Molecular Function: protein binding; DNA binding; metal ion binding

Biological Process: protein amino acid O-linked glycosylation; gene expression; positive regulation of transcription from RNA polymerase II promoter; regulation of gene expression, epigenetic