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Open data
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Basic information
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Title | PRC2-J119-450 monomer bound to H1-nucleosome | |||||||||
![]() | PRC-J119-450 monomer bound to H1-nucleosome, non-uniform refinement | |||||||||
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![]() | Histone methyl transferase / gene repression / epigenetics / chromatin / GENE REGULATION | |||||||||
Function / homology | ![]() protein localization to pericentric heterochromatin / hepatocyte homeostasis / cellular response to trichostatin A / regulation of gliogenesis / negative regulation of striated muscle cell differentiation / regulation of kidney development / [histone H3]-lysine27 N-trimethyltransferase / sex chromatin / CAF-1 complex / negative regulation of keratinocyte differentiation ...protein localization to pericentric heterochromatin / hepatocyte homeostasis / cellular response to trichostatin A / regulation of gliogenesis / negative regulation of striated muscle cell differentiation / regulation of kidney development / [histone H3]-lysine27 N-trimethyltransferase / sex chromatin / CAF-1 complex / negative regulation of keratinocyte differentiation / histone H3K27 trimethyltransferase activity / negative regulation of retinoic acid receptor signaling pathway / positive regulation of transcription regulatory region DNA binding / cerebellar cortex development / response to tetrachloromethane / primary miRNA binding / random inactivation of X chromosome / regulatory ncRNA-mediated heterochromatin formation / skeletal muscle satellite cell maintenance involved in skeletal muscle regeneration / histone H3K27 methyltransferase activity / negative regulation of cardiac muscle cell proliferation / facultative heterochromatin formation / ubiquitin-modified histone reader activity / positive regulation of cell cycle G1/S phase transition / negative regulation of cardiac muscle hypertrophy / NuRD complex / NURF complex / regulation of cell fate specification / negative regulation of DNA recombination / negative regulation of stem cell population maintenance / DNA replication-dependent chromatin assembly / ESC/E(Z) complex / Transcription of E2F targets under negative control by p107 (RBL1) and p130 (RBL2) in complex with HDAC1 / Apoptosis induced DNA fragmentation / negative regulation of stem cell differentiation / regulation of stem cell differentiation / RSC-type complex / pronucleus / chromatin silencing complex / protein-lysine N-methyltransferase activity / Polo-like kinase mediated events / cardiac muscle hypertrophy in response to stress / Transcription of E2F targets under negative control by DREAM complex / chromosome condensation / G1 to G0 transition / positive regulation of dendrite development / cardiac muscle cell proliferation / histone H3 methyltransferase activity / nucleosomal DNA binding / synaptic transmission, GABAergic / Formation of Senescence-Associated Heterochromatin Foci (SAHF) / histone methyltransferase complex / DNA methylation-dependent constitutive heterochromatin formation / lncRNA binding / histone methyltransferase activity / negative regulation of G1/S transition of mitotic cell cycle / spinal cord development / ATPase complex / negative regulation of gene expression, epigenetic / Sin3-type complex / G1/S-Specific Transcription / positive regulation of stem cell population maintenance / oligodendrocyte differentiation / Transcriptional Regulation by E2F6 / minor groove of adenine-thymine-rich DNA binding / negative regulation of transcription elongation by RNA polymerase II / RNA Polymerase I Transcription Initiation / histone deacetylase complex / G0 and Early G1 / negative regulation of cell differentiation / positive regulation of protein serine/threonine kinase activity / subtelomeric heterochromatin formation / ribonucleoprotein complex binding / pericentric heterochromatin / positive regulation of epithelial to mesenchymal transition / Transcriptional regulation of brown and beige adipocyte differentiation by EBF2 / Cyclin E associated events during G1/S transition / RNA polymerase II core promoter sequence-specific DNA binding / nucleosome binding / Cyclin A:Cdk2-associated events at S phase entry / keratinocyte differentiation / spleen development / protein localization to chromatin / Regulation of TP53 Activity through Acetylation / : / Deposition of new CENPA-containing nucleosomes at the centromere / transcription repressor complex / negative regulation of cytokine production involved in inflammatory response / positive regulation of GTPase activity / positive regulation of MAP kinase activity / B cell differentiation / SUMOylation of chromatin organization proteins / cellular response to leukemia inhibitory factor / enzyme activator activity / negative regulation of cell migration / liver development / thymus development / hippocampus development / central nervous system development / liver regeneration Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.0 Å | |||||||||
![]() | Sauer PV / Cookis T / Pavlenko E / Nogales E / Poepsel S | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Activation of automethylated PRC2 by dimerization on chromatin. Authors: Paul V Sauer / Egor Pavlenko / Trinity Cookis / Linda C Zirden / Juliane Renn / Ankush Singhal / Pascal Hunold / Michaela N Hoehne-Wiechmann / Olivia van Ray / Farnusch Kaschani / Markus ...Authors: Paul V Sauer / Egor Pavlenko / Trinity Cookis / Linda C Zirden / Juliane Renn / Ankush Singhal / Pascal Hunold / Michaela N Hoehne-Wiechmann / Olivia van Ray / Farnusch Kaschani / Markus Kaiser / Robert Hänsel-Hertsch / Karissa Y Sanbonmatsu / Eva Nogales / Simon Poepsel / ![]() ![]() Abstract: Polycomb repressive complex 2 (PRC2) is an epigenetic regulator that trimethylates lysine 27 of histone 3 (H3K27me3) and is essential for embryonic development and cellular differentiation. H3K27me3 ...Polycomb repressive complex 2 (PRC2) is an epigenetic regulator that trimethylates lysine 27 of histone 3 (H3K27me3) and is essential for embryonic development and cellular differentiation. H3K27me3 is associated with transcriptionally repressed chromatin and is established when PRC2 is allosterically activated upon methyl-lysine binding by the regulatory subunit EED. Automethylation of the catalytic subunit enhancer of zeste homolog 2 (EZH2) stimulates its activity by an unknown mechanism. Here, we show that human PRC2 forms a dimer on chromatin in which an inactive, automethylated PRC2 protomer is the allosteric activator of a second PRC2 that is poised to methylate H3 of a substrate nucleosome. Functional assays support our model of allosteric trans-autoactivation via EED, suggesting a previously unknown mechanism mediating context-dependent activation of PRC2. Our work showcases the molecular mechanism of auto-modification-coupled dimerization in the regulation of chromatin-modifying complexes. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 107 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 38.8 KB 38.8 KB | Display Display | ![]() |
Images | ![]() | 49.5 KB | ||
Masks | ![]() | 216 MB | ![]() | |
Filedesc metadata | ![]() | 9.4 KB | ||
Others | ![]() ![]() ![]() ![]() | 3.6 MB 2.7 MB 200.5 MB 200.5 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8tb9MC ![]() 8t9gC ![]() 8tasC C: citing same article ( M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | PRC-J119-450 monomer bound to H1-nucleosome, non-uniform refinement | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.94 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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Projections & Slices |
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Density Histograms |
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Sample components
+Entire : PRC2-J119-450 monomer bound to H1-nucleosome
+Supramolecule #1: PRC2-J119-450 monomer bound to H1-nucleosome
+Supramolecule #2: Nucleosome
+Supramolecule #3: PRC2
+Macromolecule #1: Histone H1.0
+Macromolecule #2: Protein Jumonji
+Macromolecule #3: Polycomb protein SUZ12
+Macromolecule #4: Histone-lysine N-methyltransferase EZH2
+Macromolecule #5: Polycomb protein EED
+Macromolecule #7: Histone H3.2
+Macromolecule #8: Histone H4
+Macromolecule #9: Histone-binding protein RBBP4
+Macromolecule #10: Histone H2A type 1
+Macromolecule #11: Histone H2B 1.1
+Macromolecule #13: Zinc finger protein AEBP2
+Macromolecule #6: DNA (226-MER)
+Macromolecule #12: DNA (226-MER)
+Macromolecule #14: S-ADENOSYL-L-HOMOCYSTEINE
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.8 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.8 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Startup model | Type of model: EMDB MAP EMDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 4.0 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 55918 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
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Output model | ![]() PDB-8tb9: |