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- PDB-8tas: PRC2 monomer bound to nucleosome -

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Basic information

Entry
Database: PDB / ID: 8tas
TitlePRC2 monomer bound to nucleosome
Components
  • (DNA (226-MER)) x 2
  • (Polycomb protein ...) x 2
  • Histone H2A
  • Histone H2B 1.1
  • Histone H3.2
  • Histone H4
  • Histone-binding protein RBBP4
  • Histone-lysine N-methyltransferase EZH2
  • Zinc finger protein AEBP2
KeywordsGENE REGULATION / Histone methyl transferase / gene repression / epigenetics / chromatin
Function / homology
Function and homology information


regulation of kidney development / hepatocyte homeostasis / 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 / random inactivation of X chromosome / CAF-1 complex ...regulation of kidney development / hepatocyte homeostasis / 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 / random inactivation of X chromosome / CAF-1 complex / histone H3K27 trimethyltransferase activity / negative regulation of retinoic acid receptor signaling pathway / regulatory ncRNA-mediated heterochromatin formation / skeletal muscle satellite cell maintenance involved in skeletal muscle regeneration / response to tetrachloromethane / cerebellar cortex development / primary miRNA binding / histone H3K27 methyltransferase activity / facultative heterochromatin formation / positive regulation of cell cycle G1/S phase transition / NURF complex / NuRD complex / regulation of cell fate specification / negative regulation of stem cell population maintenance / DNA replication-dependent chromatin assembly / ESC/E(Z) complex / chromatin silencing complex / Transcription of E2F targets under negative control by p107 (RBL1) and p130 (RBL2) in complex with HDAC1 / regulation of stem cell differentiation / RSC-type complex / protein-lysine N-methyltransferase activity / cardiac muscle hypertrophy in response to stress / negative regulation of stem cell differentiation / Transcription of E2F targets under negative control by DREAM complex / pronucleus / Polo-like kinase mediated events / synaptic transmission, GABAergic / positive regulation of dendrite development / histone H3 methyltransferase activity / lncRNA binding / negative regulation of G1/S transition of mitotic cell cycle / negative regulation of gene expression, epigenetic / G1 to G0 transition / spinal cord development / positive regulation of stem cell population maintenance / ATPase complex / G1/S-Specific Transcription / histone methyltransferase activity / Sin3-type complex / oligodendrocyte differentiation / negative regulation of transcription elongation by RNA polymerase II / Transcriptional Regulation by E2F6 / RNA Polymerase I Transcription Initiation / negative regulation of cell differentiation / histone deacetylase complex / G0 and Early G1 / subtelomeric heterochromatin formation / negative regulation of cytokine production involved in inflammatory response / RNA polymerase II core promoter sequence-specific DNA binding / pericentric heterochromatin / ribonucleoprotein complex binding / Cyclin E associated events during G1/S transition / Transcriptional regulation of brown and beige adipocyte differentiation by EBF2 / positive regulation of epithelial to mesenchymal transition / Cyclin A:Cdk2-associated events at S phase entry / keratinocyte differentiation / Deposition of new CENPA-containing nucleosomes at the centromere / enzyme activator activity / Regulation of TP53 Activity through Acetylation / protein localization to chromatin / methylated histone binding / B cell differentiation / SUMOylation of chromatin organization proteins / transcription corepressor binding / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / positive regulation of GTPase activity / negative regulation of cell migration / PRC2 methylates histones and DNA / Regulation of PTEN gene transcription / stem cell differentiation / Defective pyroptosis / HDACs deacetylate histones / liver regeneration / promoter-specific chromatin binding / hippocampus development / transcription coregulator activity / negative regulation of transforming growth factor beta receptor signaling pathway / positive regulation of MAP kinase activity / protein modification process / positive regulation of protein serine/threonine kinase activity / brain development / regulation of circadian rhythm / heterochromatin formation / chromatin DNA binding / PKMTs methylate histone lysines / histone deacetylase binding / Activation of anterior HOX genes in hindbrain development during early embryogenesis / HCMV Early Events / cellular response to hydrogen peroxide / G1/S transition of mitotic cell cycle
Similarity search - Function
: / EZH2, SET domain / Polycomb protein, VEFS-Box / VEFS-Box of polycomb protein / : / Ezh2, MCSS domain / Histone-lysine N-methyltransferase EZH1/EZH2 / Polycomb repressive complex 2 subunit EZH1/EZH2, tri-helical domain / Pre-SET CXC domain / WD repeat binding protein EZH2 ...: / EZH2, SET domain / Polycomb protein, VEFS-Box / VEFS-Box of polycomb protein / : / Ezh2, MCSS domain / Histone-lysine N-methyltransferase EZH1/EZH2 / Polycomb repressive complex 2 subunit EZH1/EZH2, tri-helical domain / Pre-SET CXC domain / WD repeat binding protein EZH2 / Polycomb repressive complex 2 tri-helical domain / CXC domain / Tesmin/TSO1-like CXC domain / Tesmin/TSO1-like CXC domain / Histone-lysine N-methyltransferase EZH1/2-like / CXC domain / CXC domain profile. / Histone-binding protein RBBP4, N-terminal / : / Histone-binding protein RBBP4 or subunit C of CAF1 complex / : / SET (Su(var)3-9, Enhancer-of-zeste, Trithorax) domain / SET domain superfamily / SET domain / SET domain profile. / SET domain / SANT SWI3, ADA2, N-CoR and TFIIIB'' DNA-binding domains / SANT/Myb domain / zinc finger / Zinc finger C2H2 type domain profile. / Zinc finger C2H2 superfamily / Zinc finger C2H2 type domain signature. / Zinc finger C2H2-type / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A conserved site / Histone H2A signature. / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone H2A / Histone 2A / Histone H4, conserved site / Histone H4 signature. / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / Histone H4 / Histone H4 / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / Histone H3 signature 1. / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 / Histone-fold / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
S-ADENOSYL-L-HOMOCYSTEINE / DNA / DNA (> 10) / DNA (> 100) / Polycomb protein EED / Histone H2B 1.1 / Histone H4 / Histone H3.2 / Histone-binding protein RBBP4 / Polycomb protein SUZ12 ...S-ADENOSYL-L-HOMOCYSTEINE / DNA / DNA (> 10) / DNA (> 100) / Polycomb protein EED / Histone H2B 1.1 / Histone H4 / Histone H3.2 / Histone-binding protein RBBP4 / Polycomb protein SUZ12 / Histone-lysine N-methyltransferase EZH2 / Histone H2A / Zinc finger protein AEBP2
Similarity search - Component
Biological speciesHomo sapiens (human)
Xenopus laevis (African clawed frog)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.1 Å
AuthorsSauer, P.V. / Pavlenko, E. / Nogales, E. / Poepsel, S.
Funding support United States, 1items
OrganizationGrant numberCountry
Howard Hughes Medical Institute (HHMI) United States
CitationJournal: Mol Cell / Year: 2024
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
DepositionJun 27, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 25, 2024Provider: repository / Type: Initial release
Revision 1.1Oct 9, 2024Group: Data collection / Database references / Structure summary
Category: citation / em_admin ...citation / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _citation.pdbx_database_id_PubMed / _citation.title ..._citation.pdbx_database_id_PubMed / _citation.title / _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
D: Polycomb protein SUZ12
E: Histone-lysine N-methyltransferase EZH2
G: Polycomb protein EED
I: Histone H3.2
H: DNA (226-MER)
J: Histone H4
R: Histone H2A
S: Histone H2B 1.1
T: DNA (226-MER)
U: Histone H2A
V: Histone H2B 1.1
W: Histone H3.2
X: Histone H4
O: Histone-binding protein RBBP4
Y: Zinc finger protein AEBP2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)533,57616
Polymers533,19215
Non-polymers3841
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Polycomb protein ... , 2 types, 2 molecules DG

#1: Protein Polycomb protein SUZ12 / Chromatin precipitated E2F target 9 protein / ChET 9 protein / Joined to JAZF1 protein / Suppressor ...Chromatin precipitated E2F target 9 protein / ChET 9 protein / Joined to JAZF1 protein / Suppressor of zeste 12 protein homolog


Mass: 72266.359 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SUZ12, CHET9, JJAZ1, KIAA0160 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q15022
#3: Protein Polycomb protein EED / hEED / Embryonic ectoderm development protein / WD protein associating with integrin cytoplasmic ...hEED / Embryonic ectoderm development protein / WD protein associating with integrin cytoplasmic tails 1 / WAIT-1


Mass: 50267.691 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: EED / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: O75530

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Protein , 7 types, 11 molecules EIWJXRUSVOY

#2: Protein Histone-lysine N-methyltransferase EZH2 / ENX-1 / Enhancer of zeste homolog 2 / Lysine N-methyltransferase 6


Mass: 86174.984 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: EZH2, KMT6 / Production host: Trichoplusia ni (cabbage looper)
References: UniProt: Q15910, [histone H3]-lysine27 N-trimethyltransferase
#4: Protein Histone H3.2


Mass: 15435.126 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P84233
#6: Protein Histone H4


Mass: 11625.634 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P62799
#7: Protein Histone H2A


Mass: 14355.659 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: h2ac14.L / Production host: Escherichia coli (E. coli) / References: UniProt: Q6AZJ8
#8: Protein Histone H2B 1.1 / H2B1.1


Mass: 13655.948 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P02281
#10: Protein Histone-binding protein RBBP4 / Chromatin assembly factor 1 subunit C / CAF-1 subunit C / Chromatin assembly factor I p48 subunit / ...Chromatin assembly factor 1 subunit C / CAF-1 subunit C / Chromatin assembly factor I p48 subunit / CAF-I 48 kDa subunit / CAF-I p48 / Nucleosome-remodeling factor subunit RBAP48 / Retinoblastoma-binding protein 4 / RBBP-4 / Retinoblastoma-binding protein p48


Mass: 47709.527 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RBBP4, RBAP48 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q09028
#11: Protein Zinc finger protein AEBP2 / Adipocyte enhancer-binding protein 2 / AE-binding protein 2


Mass: 34183.195 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: AEBP2 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q6ZN18

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DNA chain , 2 types, 2 molecules HT

#5: DNA chain DNA (226-MER)


Mass: 66539.320 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#9: DNA chain DNA (226-MER)


Mass: 65905.852 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Non-polymers , 1 types, 1 molecules

#12: Chemical ChemComp-SAH / S-ADENOSYL-L-HOMOCYSTEINE


Mass: 384.411 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C14H20N6O5S / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1PRC2 monomer bound to nucleosomeCOMPLEX#1-#110RECOMBINANT
2NucleosomeCOMPLEX#6-#111RECOMBINANT
3PRC2COMPLEX#1-#51RECOMBINANT
Molecular weight
IDEntity assembly-IDValue (°)Experimental value
110.55 MDaNO
210.26 MDaNO
310.29 MDaNO
410.29 MDaNO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
21Homo sapiens (human)9606
32Xenopus laevis (African clawed frog)8355
43Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
21Trichoplusia ni (cabbage looper)7111
32Escherichia coli (E. coli)562
43Trichoplusia ni (cabbage looper)7111
Buffer solutionpH: 7.8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 3500 nm / Nominal defocus min: 1500 nm
Image recordingElectron dose: 40 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

EM software
IDNameVersionCategory
7ISOLDE1.6model fitting
9PHENIX1.20.1_4487:model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 4.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 69000 / Symmetry type: POINT
Atomic model buildingProtocol: FLEXIBLE FIT / Space: REAL
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00630870
ELECTRON MICROSCOPYf_angle_d0.64543065
ELECTRON MICROSCOPYf_dihedral_angle_d27.9736828
ELECTRON MICROSCOPYf_chiral_restr0.0414491
ELECTRON MICROSCOPYf_plane_restr0.0044226

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