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- PDB-6c23: Cryo-EM structure of PRC2 bound to cofactors AEBP2 and JARID2 in ... -
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Basic information
Entry | Database: PDB / ID: 6c23 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Title | Cryo-EM structure of PRC2 bound to cofactors AEBP2 and JARID2 in the Compact Active State | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() | GENE REGULATION / polycomb repressive complex / AEBP2 / JARID2 / histone modification | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 / 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 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 / 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 / G1 to G0 transition / positive regulation of dendrite development / cardiac muscle cell proliferation / histone H3 methyltransferase activity / synaptic transmission, GABAergic / 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 / 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 / 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 / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / ubiquitin binding / Regulation of PTEN gene transcription / PRC2 methylates histones and DNA / transcription corepressor binding / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) Similarity search - Function | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Biological species | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Kasinath, V. / Faini, M. / Poepsel, S. / Reif, D. / Feng, A. / Stjepanovic, G. / Aebersold, R. / Nogales, E. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structures of human PRC2 with its cofactors AEBP2 and JARID2. Authors: Vignesh Kasinath / Marco Faini / Simon Poepsel / Dvir Reif / Xinyu Ashlee Feng / Goran Stjepanovic / Ruedi Aebersold / Eva Nogales / ![]() ![]() Abstract: Transcriptionally repressive histone H3 lysine 27 methylation by Polycomb repressive complex 2 (PRC2) is essential for cellular differentiation and development. Here we report cryo-electron ...Transcriptionally repressive histone H3 lysine 27 methylation by Polycomb repressive complex 2 (PRC2) is essential for cellular differentiation and development. Here we report cryo-electron microscopy structures of human PRC2 in a basal state and two distinct active states while in complex with its cofactors JARID2 and AEBP2. Both cofactors mimic the binding of histone H3 tails. JARID2, methylated by PRC2, mimics a methylated H3 tail to stimulate PRC2 activity, whereas AEBP2 interacts with the RBAP48 subunit, mimicking an unmodified H3 tail. SUZ12 interacts with all other subunits within the assembly and thus contributes to the stability of the complex. Our analysis defines the complete architecture of a functionally relevant PRC2 and provides a structural framework to understand its regulation by cofactors, histone tails, and RNA. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 430.8 KB | Display | ![]() |
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PDB format | ![]() | 296 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 7334MC ![]() 7335C ![]() 7337C ![]() 6c24C M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Polycomb protein ... , 2 types, 4 molecules AMQL
#1: Protein | Mass: 83181.922 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #4: Protein | | Mass: 50267.691 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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-Protein , 6 types, 7 molecules EKCNPZB
#2: Protein | Mass: 37936.629 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() | ||||||||
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#3: Protein | Mass: 85492.297 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: Q15910, histone-lysine N-methyltransferase #5: Protein | | Mass: 47709.527 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #7: Protein | | Mass: 33012.668 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #8: Protein | | Mass: 11507.176 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #9: Protein | | Mass: 37706.449 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Protein/peptide , 1 types, 1 molecules O
#6: Protein/peptide | Mass: 735.874 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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-Details
Has protein modification | Y |
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Sequence details | authors have indicated that the macromolecule name is corresponding to chain Z is SUZ12. The ...authors have indicated that the macromolecule name is corresponding to chain Z is SUZ12. The expected sequence for this portion is: SUZ12 aa 150 - 356 SHSLSAHLQL |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: Ternary complex of PRC2 with cofactors AEBP2 and JARID2 Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Molecular weight | Value: 0.3 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.9 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 60 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
EM imaging optics | Phase plate: VOLTA PHASE PLATE |
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Processing
Software | Name: REFMAC / Version: 5.8.0088 / Classification: refinement | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING ONLY | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 145592 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | Resolution: 3.9→147.84 Å / Cor.coef. Fo:Fc: 0.825 / SU B: 38.798 / SU ML: 0.506 / ESU R: 1.593 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 120.59 Å2
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Refinement step | Cycle: 1 / Total: 13478 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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