NDLI: Identification of an Evolutionarily Conserved Cis-Regulatory Element Controlling the Peg3 Imprinted Domain

Content Provider	PubMed Central
Author	Thiaville, Michelle M. Kim, Hana Frey, Wesley D. Kim, Joomyeong
Editor	Wu, Qiong
Copyright Year	2013
Abstract	The mammalian Peg3 domain harbors more than 20 evolutionarily conserved regions (ECRs) that are spread over the 250-kb genomic interval. The majority of these ECRs are marked with two histone modifications, H3K4me1 and H3K27ac, suggesting potential roles as distant regulatory elements for the transcription of the nearby imprinted genes. In the current study, the chromatin conformation capture (3C) method was utilized to detect potential interactions of these ECRs with the imprinted genes. According to the results, one region, ECR18, located 200-kb upstream of Peg3 interacts with the two promoter regions of Peg3 and Zim2. The observed interaction is most prominent in brain, but was also detected in testis. Histone modification and DNA methylation on ECR18 show no allele bias, implying that this region is likely functional on both alleles. In vitro assays also reveal ECR18 as a potential enhancer or repressor for the promoter of Peg3. Overall, these results indicate that the promoters of several imprinted genes in the Peg3 domain interact with one evolutionarily conserved region, ECR18, and further suggest that ECR18 may play key roles in the transcription and imprinting control of the Peg3 domain as a distant regulatory element.
Related Links	http://dx.doi.org/10.1371/journal.pone.0075417
Starting Page	75417
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	9
Volume Number	8
Language	English
Publisher	Public Library of Science
Publisher Date	2013-09-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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