A High-Density Map for Navigating the Human Polycomb Complexome

Simon Hauri; Federico Comoglio; Makiko Seimiya; Moritz Gerstung; Timo Glatter; Klaus Hansen; Ruedi Aebersold; Renato Paro; Matthias Gstaiger; Christian Beisel

doi:10.1016/j.celrep.2016.08.096

A High-Density Map for Navigating the Human Polycomb Complexome

Simon Hauri, Federico Comoglio, Makiko Seimiya, Moritz Gerstung, Timo Glatter, Klaus Hansen, Ruedi Aebersold, Renato Paro, Matthias Gstaiger, Christian Beisel

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Abstract

Polycomb group (PcG) proteins are major determinants of gene silencing and epigenetic memory in higher eukaryotes. Here, we systematically mapped the human PcG complexome using a robust affinity purification mass spectrometry approach. Our high-density protein interaction network uncovered a diverse range of PcG complexes. Moreover, our analysis identified PcG interactors linking them to the PcG system, thus providing insight into the molecular function of PcG complexes and mechanisms of recruitment to target genes. We identified two human PRC2 complexes and two PR-DUB deubiquitination complexes, which contain the O-linked N-acetylglucosamine transferase OGT1 and several transcription factors. Finally, genome-wide profiling of PR-DUB components indicated that the human PR-DUB and PRC1 complexes bind distinct sets of target genes, suggesting differential impact on cellular processes in mammals.

Original language	English
Journal	Cell Reports
Volume	17
Issue number	2
Pages (from-to)	583-595
Number of pages	13
ISSN	2211-1247
DOIs	https://doi.org/10.1016/j.celrep.2016.08.096
Publication status	Published - 4 Oct 2016

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title = "A High-Density Map for Navigating the Human Polycomb Complexome",

abstract = "Polycomb group (PcG) proteins are major determinants of gene silencing and epigenetic memory in higher eukaryotes. Here, we systematically mapped the human PcG complexome using a robust affinity purification mass spectrometry approach. Our high-density protein interaction network uncovered a diverse range of PcG complexes. Moreover, our analysis identified PcG interactors linking them to the PcG system, thus providing insight into the molecular function of PcG complexes and mechanisms of recruitment to target genes. We identified two human PRC2 complexes and two PR-DUB deubiquitination complexes, which contain the O-linked N-acetylglucosamine transferase OGT1 and several transcription factors. Finally, genome-wide profiling of PR-DUB components indicated that the human PR-DUB and PRC1 complexes bind distinct sets of target genes, suggesting differential impact on cellular processes in mammals.",

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AU - Hauri, Simon

AU - Comoglio, Federico

AU - Seimiya, Makiko

AU - Gerstung, Moritz

AU - Glatter, Timo

AU - Hansen, Klaus

AU - Aebersold, Ruedi

AU - Paro, Renato

AU - Gstaiger, Matthias

AU - Beisel, Christian

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N2 - Polycomb group (PcG) proteins are major determinants of gene silencing and epigenetic memory in higher eukaryotes. Here, we systematically mapped the human PcG complexome using a robust affinity purification mass spectrometry approach. Our high-density protein interaction network uncovered a diverse range of PcG complexes. Moreover, our analysis identified PcG interactors linking them to the PcG system, thus providing insight into the molecular function of PcG complexes and mechanisms of recruitment to target genes. We identified two human PRC2 complexes and two PR-DUB deubiquitination complexes, which contain the O-linked N-acetylglucosamine transferase OGT1 and several transcription factors. Finally, genome-wide profiling of PR-DUB components indicated that the human PR-DUB and PRC1 complexes bind distinct sets of target genes, suggesting differential impact on cellular processes in mammals.

AB - Polycomb group (PcG) proteins are major determinants of gene silencing and epigenetic memory in higher eukaryotes. Here, we systematically mapped the human PcG complexome using a robust affinity purification mass spectrometry approach. Our high-density protein interaction network uncovered a diverse range of PcG complexes. Moreover, our analysis identified PcG interactors linking them to the PcG system, thus providing insight into the molecular function of PcG complexes and mechanisms of recruitment to target genes. We identified two human PRC2 complexes and two PR-DUB deubiquitination complexes, which contain the O-linked N-acetylglucosamine transferase OGT1 and several transcription factors. Finally, genome-wide profiling of PR-DUB components indicated that the human PR-DUB and PRC1 complexes bind distinct sets of target genes, suggesting differential impact on cellular processes in mammals.

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A High-Density Map for Navigating the Human Polycomb Complexome

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