Journal
EMBO JOURNAL
Volume 26, Issue 23, Pages 4831-4840Publisher
WILEY-BLACKWELL
DOI: 10.1038/sj.emboj.7601908
Keywords
adipocytes; DNA methylation; nuclear receptors; RIP140; Ucp1
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Funding
- Wellcome Trust [079200/Z/06/Z] Funding Source: Wellcome Trust
- Biotechnology and Biological Sciences Research Council [BB/C504327/1] Funding Source: researchfish
- Biotechnology and Biological Sciences Research Council [BB/C504327/1] Funding Source: Medline
- Wellcome Trust [079200/Z/06/Z] Funding Source: Medline
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Nuclear receptors control the function of cells by regulating transcription from specific gene networks. The establishment and maintenance of epigenetic gene marks is fundamental to the regulation of gene transcription and the control of cell function. RIP140 is a corepressor for nuclear receptors that suppresses transcription from a broad programme of metabolic genes and thereby controls energy homoeostasis in vivo. Here we show by analysis of Ucp1, a gene which is typically expressed in brown but not white adipocytes, that RIP140 is essential for both DNA and histone methylation to maintain gene repression. RIP140 expression promotes the assembly of DNA and histone methyltransferases ( HMTs) on the Ucp1 enhancer and leads to methylation of specific CpG residues and histones as judged by bisulphite genomic sequencing and chromatin immunoprecipitation assays. Our results suggest that RIP140 serves as a scaffold for both DNA and HMT activities to inhibit gene transcription by two key epigenetic repression systems.
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