TET1 and hydroxymethylcytosine in transcription and DNA methylation fidelity
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TET1 and hydroxymethylcytosine in transcription and DNA methylation fidelity. / Williams, Kristine; Christensen, Jesper; Pedersen, Marianne Terndrup; Johansen, Jens V; Cloos, Paul A C; Rappsilber, Juri; Helin, Kristian.
I: Nature, Bind 473, Nr. 7347, 19.05.2011, s. 343-8.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - TET1 and hydroxymethylcytosine in transcription and DNA methylation fidelity
AU - Williams, Kristine
AU - Christensen, Jesper
AU - Pedersen, Marianne Terndrup
AU - Johansen, Jens V
AU - Cloos, Paul A C
AU - Rappsilber, Juri
AU - Helin, Kristian
PY - 2011/5/19
Y1 - 2011/5/19
N2 - Enzymes catalysing the methylation of the 5-position of cytosine (mC) have essential roles in regulating gene expression and maintaining cellular identity. Recently, TET1 was found to hydroxylate the methyl group of mC, converting it to 5-hydroxymethyl cytosine (hmC). Here we show that TET1 binds throughout the genome of embryonic stem cells, with the majority of binding sites located at transcription start sites (TSSs) of CpG-rich promoters and within genes. The hmC modification is found in gene bodies and in contrast to mC is also enriched at CpG-rich TSSs. We provide evidence further that TET1 has a role in transcriptional repression. TET1 binds a significant proportion of Polycomb group target genes. Furthermore, TET1 associates and colocalizes with the SIN3A co-repressor complex. We propose that TET1 fine-tunes transcription, opposes aberrant DNA methylation at CpG-rich sequences and thereby contributes to the regulation of DNA methylation fidelity.
AB - Enzymes catalysing the methylation of the 5-position of cytosine (mC) have essential roles in regulating gene expression and maintaining cellular identity. Recently, TET1 was found to hydroxylate the methyl group of mC, converting it to 5-hydroxymethyl cytosine (hmC). Here we show that TET1 binds throughout the genome of embryonic stem cells, with the majority of binding sites located at transcription start sites (TSSs) of CpG-rich promoters and within genes. The hmC modification is found in gene bodies and in contrast to mC is also enriched at CpG-rich TSSs. We provide evidence further that TET1 has a role in transcriptional repression. TET1 binds a significant proportion of Polycomb group target genes. Furthermore, TET1 associates and colocalizes with the SIN3A co-repressor complex. We propose that TET1 fine-tunes transcription, opposes aberrant DNA methylation at CpG-rich sequences and thereby contributes to the regulation of DNA methylation fidelity.
U2 - 10.1038/nature10066
DO - 10.1038/nature10066
M3 - Journal article
C2 - 21490601
VL - 473
SP - 343
EP - 348
JO - Nature
JF - Nature
SN - 0028-0836
IS - 7347
ER -
ID: 33532064