Direct Recruitment of Polycomb Repressive Complex 1 to Chromatin by Core Binding Transcription Factors

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Direct Recruitment of Polycomb Repressive Complex 1 to Chromatin by Core Binding Transcription Factors

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Title: Direct Recruitment of Polycomb Repressive Complex 1 to Chromatin by Core Binding Transcription Factors
Author: Yu, Ming; Mazor, Tali; Huang, Hui; Huang, Hsuan-Ting; Kathrein, Katie L.; Woo, Andrew; Chouinard, Candace R.; Labadorf, Adam; Akie, Thomas E.; Moran, Tyler B.; Xie, Huafeng; Zacharek, Sima; Taniuchi, Ichiro; Roeder, Robert G.; Kim, Carla; Zon, Leonard Ira; Fraenkel, Ernest; Cantor, Alan B.

Note: Order does not necessarily reflect citation order of authors.

Citation: Yu, Ming, Tali Mazor, Hui Huang, Hsuan-Ting Huang, Katie L. Kathrein, Andrew J. Woo, Candace R. Chouinard, et al. 2012. Direct Recruitment of Polycomb Repressive Complex 1 to Chromatin by Core Binding Transcription Factors. Molecular Cell 45, no. 3: 330–343.
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Abstract: Polycomb repressive complexes (PRCs) play key roles in developmental epigenetic regulation. Yet the mechanisms that target PRCs to specific loci in mammalian cells remain incompletely understood. In this study we show that Bmi1, a core component of Polycomb Repressive Complex 1 (PRC1), binds directly to the Runx1/CBFβ transcription factor complex. Genome-wide studies in megakaryocytic cells demonstrate significant chromatin occupancy overlap between the PRC1 core component Ring1b and Runx1/CBFβ and functional regulation of a considerable fraction of commonly bound genes. Bmi1/Ring1b and Runx1/CBFβ deficiencies generate partial phenocopies of one another in vivo. We also show that Ring1b occupies key Runx1 binding sites in primary murine thymocytes and that this occurs via PRC2-independent mechanisms. Genetic depletion of Runx1 results in reduced Ring1b binding at these sites in vivo. These findings provide evidence for site-specific PRC1 chromatin recruitment by core binding transcription factors in mammalian cells.
Published Version: doi:10.1016/j.molcel.2011.11.032
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3278717/pdf/nihms-349597.pdf
http://www.researchgate.net/profile/Adam_Labadorf/publication/221823788_Direct_recruitment_of_polycomb_repressive_complex_1_to_chromatin_by_core_binding_transcription_factors/links/0deec528611cc8dee1000000
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:12568929
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