Allele-specific deposition of macroH2A1 in imprinting control regions

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Allele-specific deposition of macroH2A1 in imprinting control regions.

In the current study, we analyzed the deposition patterns of macroH2A1 at a number of different genomic loci located in X chromosome and autosomes. MacroH2A1 is preferentially deposited at methylated CpG-rich regions located close to promoters. The macroH2A1 deposition patterns at the methylated CpG islands of several imprinted domains, including the imprinting control regions (ICRs) of Xist, P...

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Allele-specific DNA methylation (ASM) and allele-specific gene expression (ASE) have long been studied in genomic imprinting and X chromosome inactivation. But these types of allelic asymmetries, along with allele-specific transcription factor binding (ASTF), have turned out to be far more pervasive-affecting many non-imprinted autosomal genes in normal human tissues. ASM, ASE and ASTF have now...

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Recent studies have provided evidence for non-canonical imprinting effects that are associated with allele-specific expression biases at the tissue level in mice. These imprinting effects have features that are distinct from canonical imprinting effects that involve allele silencing. Here, I discuss some of the evidence for non-canonical imprinting effects in the context of random X-inactivatio...

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Mammalian genomic imprinting is regulated by imprinting control regions (ICRs) that are usually associated with tandem arrays of transcription factor binding sites. In this study, the sequence features derived from a tandem array of YY1 binding sites of Peg3-DMR (differentially methylated region) led us to identify three additional clustered YY1 binding sites, which are also localized within th...

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ژورنال

عنوان ژورنال: Human Molecular Genetics

سال: 2006

ISSN: 1460-2083,0964-6906

DOI: 10.1093/hmg/ddi485