+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-11910 | |||||||||
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Title | Histone H3 recognition by nucleosome-bound PRC2 subunit EZH2. | |||||||||
Map data | Shows the Relion 3.0 postprocessed cryo-EM map of the EZH2sub-Nucsub structure, generated by particle subtraction and focused 3D refinement. | |||||||||
Sample |
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Keywords | Polycomb / nucleosome / histone methyltransferase / PRC2 / EZH2 / H3K36 / H3 tail / gene regulation / H3 / histone H3 / Polycomb Repressive Complex 2 / cryo-EM / nucleosome recognition / H3K36me2 / H3K36me3 | |||||||||
Function / homology | Function and homology information hepatocyte homeostasis / regulation of kidney development / cellular response to trichostatin A / regulation of gliogenesis / negative regulation of striated muscle cell differentiation / [histone H3]-lysine27 N-trimethyltransferase / sex chromatin / negative regulation of keratinocyte differentiation / histone H3K27 trimethyltransferase activity / negative regulation of retinoic acid receptor signaling pathway ...hepatocyte homeostasis / regulation of kidney development / cellular response to trichostatin A / regulation of gliogenesis / negative regulation of striated muscle cell differentiation / [histone H3]-lysine27 N-trimethyltransferase / sex chromatin / negative regulation of keratinocyte differentiation / histone H3K27 trimethyltransferase activity / negative regulation of retinoic acid receptor signaling pathway / response to tetrachloromethane / skeletal muscle satellite cell maintenance involved in skeletal muscle regeneration / cerebellar cortex development / random inactivation of X chromosome / primary miRNA binding / regulatory ncRNA-mediated heterochromatin formation / histone H3K27 methyltransferase activity / facultative heterochromatin formation / positive regulation of cell cycle G1/S phase transition / ESC/E(Z) complex / chromatin silencing complex / protein-lysine N-methyltransferase activity / RSC-type complex / negative regulation of stem cell differentiation / pronucleus / cardiac muscle hypertrophy in response to stress / synaptic transmission, GABAergic / positive regulation of dendrite development / histone H3 methyltransferase activity / lncRNA binding / negative regulation of G1/S transition of mitotic cell cycle / G1 to G0 transition / negative regulation of gene expression, epigenetic / histone methyltransferase activity / negative regulation of transcription elongation by RNA polymerase II / Transcriptional Regulation by E2F6 / oligodendrocyte differentiation / negative regulation of cell differentiation / subtelomeric heterochromatin formation / negative regulation of cytokine production involved in inflammatory response / RNA polymerase II core promoter sequence-specific DNA binding / ribonucleoprotein complex binding / pericentric heterochromatin / positive regulation of epithelial to mesenchymal transition / keratinocyte differentiation / protein localization to chromatin / enzyme activator activity / methylated histone binding / SUMOylation of chromatin organization proteins / B cell differentiation / positive regulation of GTPase activity / transcription corepressor binding / PRC2 methylates histones and DNA / Regulation of PTEN gene transcription / Defective pyroptosis / hippocampus development / stem cell differentiation / promoter-specific chromatin binding / liver regeneration / positive regulation of MAP kinase activity / protein modification process / regulation of circadian rhythm / positive regulation of protein serine/threonine kinase activity / chromatin DNA binding / heterochromatin formation / PKMTs methylate histone lysines / cellular response to hydrogen peroxide / Activation of anterior HOX genes in hindbrain development during early embryogenesis / HCMV Early Events / G1/S transition of mitotic cell cycle / structural constituent of chromatin / transcription corepressor activity / rhythmic process / nucleosome / nucleosome assembly / response to estradiol / chromatin organization / chromosome / Oxidative Stress Induced Senescence / methylation / cell population proliferation / chromosome, telomeric region / nuclear body / positive regulation of cell migration / protein heterodimerization activity / ribonucleoprotein complex / RNA polymerase II cis-regulatory region sequence-specific DNA binding / negative regulation of DNA-templated transcription / chromatin binding / positive regulation of cell population proliferation / synapse / regulation of DNA-templated transcription / chromatin / nucleolus / negative regulation of transcription by RNA polymerase II / DNA binding / nucleoplasm / nucleus / metal ion binding Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) / Xenopus laevis (African clawed frog) / synthetic construct (others) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.4 Å | |||||||||
Authors | Finogenova K / Benda C | |||||||||
Funding support | Germany, 2 items
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Citation | Journal: Elife / Year: 2020 Title: Structural basis for PRC2 decoding of active histone methylation marks H3K36me2/3. Authors: Ksenia Finogenova / Jacques Bonnet / Simon Poepsel / Ingmar B Schäfer / Katja Finkl / Katharina Schmid / Claudia Litz / Mike Strauss / Christian Benda / Jürg Müller / Abstract: Repression of genes by Polycomb requires that PRC2 modifies their chromatin by trimethylating lysine 27 on histone H3 (H3K27me3). At transcriptionally active genes, di- and tri-methylated H3K36 ...Repression of genes by Polycomb requires that PRC2 modifies their chromatin by trimethylating lysine 27 on histone H3 (H3K27me3). At transcriptionally active genes, di- and tri-methylated H3K36 inhibit PRC2. Here, the cryo-EM structure of PRC2 on dinucleosomes reveals how binding of its catalytic subunit EZH2 to nucleosomal DNA orients the H3 N-terminus via an extended network of interactions to place H3K27 into the active site. Unmodified H3K36 occupies a critical position in the EZH2-DNA interface. Mutation of H3K36 to arginine or alanine inhibits H3K27 methylation by PRC2 on nucleosomes . Accordingly, H3K36A and H3K36R mutants show reduced levels of H3K27me3 and defective Polycomb repression of HOX genes. The relay of interactions between EZH2, the nucleosomal DNA and the H3 N-terminus therefore creates the geometry that permits allosteric inhibition of PRC2 by methylated H3K36 in transcriptionally active chromatin. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_11910.map.gz | 6.1 MB | EMDB map data format | |
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Header (meta data) | emd-11910-v30.xml emd-11910.xml | 24.6 KB 24.6 KB | Display Display | EMDB header |
Images | emd_11910.png | 173.5 KB | ||
Filedesc metadata | emd-11910.cif.gz | 7.7 KB | ||
Others | emd_11910_additional_1.map.gz | 2.8 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-11910 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-11910 | HTTPS FTP |
-Validation report
Summary document | emd_11910_validation.pdf.gz | 325.1 KB | Display | EMDB validaton report |
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Full document | emd_11910_full_validation.pdf.gz | 324.7 KB | Display | |
Data in XML | emd_11910_validation.xml.gz | 6.5 KB | Display | |
Data in CIF | emd_11910_validation.cif.gz | 7.4 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-11910 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-11910 | HTTPS FTP |
-Related structure data
Related structure data | 7at8MC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_11910.map.gz / Format: CCP4 / Size: 115.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Shows the Relion 3.0 postprocessed cryo-EM map of the EZH2sub-Nucsub structure, generated by particle subtraction and focused 3D refinement. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.746 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: Phenix Resolve Cryo EM tool was used on...
File | emd_11910_additional_1.map | ||||||||||||
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Annotation | Phenix Resolve Cryo EM tool was used on the Relion 3D refined map and half maps to generate a density modified map. This map showed significant improvement in the H3 tail. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : EM map of EZH2 on nucleosome obtained from signal particle subtra...
+Supramolecule #1: EM map of EZH2 on nucleosome obtained from signal particle subtra...
+Supramolecule #2: SUZ12 and EZH2
+Supramolecule #3: Histones
+Supramolecule #4: DNA
+Macromolecule #1: Isoform 2 of Histone-lysine N-methyltransferase EZH2,Isoform 2 of...
+Macromolecule #2: Polycomb protein SUZ12
+Macromolecule #3: Histone H3.2
+Macromolecule #4: Histone H4
+Macromolecule #5: Histone H2A
+Macromolecule #6: Histone H2B 1.1
+Macromolecule #7: Widom601 DNA plus linker
+Macromolecule #8: Widom601 DNA plus linker
+Macromolecule #9: ZINC ION
+Macromolecule #10: S-ADENOSYL-L-HOMOCYSTEINE
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.8 |
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Vitrification | Cryogen name: ETHANE-PROPANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 52.96 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: Details: Other PDBs: 6T9L and 1AOI |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 4.4 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 45849 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |