Partners in imprinting: noncoding RNA and polycomb group proteins
- PMID: 19000827
- DOI: 10.1016/j.devcel.2008.10.008
Partners in imprinting: noncoding RNA and polycomb group proteins
Abstract
Establishment of genomic imprints during early development involves concerted epigenetic mechanisms. Two recent studies by Terranova et al. (in this issue of Developmental Cell) and Pandey et al. (in a recent issue of Molecular Cell) have demonstrated that Polycomb group proteins (PcG) and the Kcnq1ot1 regulatory RNA, respectively, are indispensable for gene- and lineage-specific chromatin modification and compaction of the paternally imprinted Kcnq1 cluster.
Comment on
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Polycomb group proteins Ezh2 and Rnf2 direct genomic contraction and imprinted repression in early mouse embryos.Dev Cell. 2008 Nov;15(5):668-79. doi: 10.1016/j.devcel.2008.08.015. Epub 2008 Oct 9. Dev Cell. 2008. PMID: 18848501
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Kcnq1ot1 antisense noncoding RNA mediates lineage-specific transcriptional silencing through chromatin-level regulation.Mol Cell. 2008 Oct 24;32(2):232-46. doi: 10.1016/j.molcel.2008.08.022. Mol Cell. 2008. PMID: 18951091
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