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- PDB-7at8: Histone H3 recognition by nucleosome-bound PRC2 subunit EZH2. -

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Basic information

Entry
Database: PDB / ID: 7at8
TitleHistone H3 recognition by nucleosome-bound PRC2 subunit EZH2.
Components
  • (Widom601 DNA plus ...) x 2
  • Histone H2A
  • Histone H2B 1.1
  • Histone H3.2
  • Histone H4
  • Isoform 2 of Histone-lysine N-methyltransferase EZH2,Isoform 2 of Histone-lysine N-methyltransferase EZH2,Histone-lysine N-methyltransferase EZH2,Isoform 2 of Histone-lysine N-methyltransferase EZH2,Isoform 2 of Histone-lysine N-methyltransferase EZH2
  • Polycomb protein SUZ12Polycomb-group proteins
KeywordsGENE REGULATION / Polycomb / nucleosome / histone methyltransferase / PRC2 / EZH2 / H3K36 / H3 tail / H3 / histone H3 / Polycomb Repressive Complex 2 / cryo-EM / nucleosome recognition / H3K36me2 / H3K36me3
Function / homology
Function and homology information


negative regulation of epidermal cell differentiation / : / transcription corepressor binding => GO:0001222 / : / subtelomeric heterochromatin formation => GO:0031509 / : / regulation of kidney development / hepatocyte homeostasis / cellular response to trichostatin A / regulation of gliogenesis ...negative regulation of epidermal cell differentiation / : / transcription corepressor binding => GO:0001222 / : / subtelomeric heterochromatin formation => GO:0031509 / : / regulation of kidney development / hepatocyte homeostasis / cellular response to trichostatin A / regulation of gliogenesis / [histone H3]-lysine27 N-trimethyltransferase / negative regulation of striated muscle cell differentiation / sex chromatin / : / negative regulation of keratinocyte differentiation / histone H3K27 trimethyltransferase activity / negative regulation of retinoic acid receptor signaling pathway / random inactivation of X chromosome / primary miRNA binding / skeletal muscle satellite cell maintenance involved in skeletal muscle regeneration / response to tetrachloromethane / cerebellar cortex development / histone H3K27 methyltransferase activity / positive regulation of cell cycle G1/S phase transition / facultative heterochromatin formation / chromatin => GO:0000785 / negative regulation of G0 to G1 transition / chromatin silencing complex / ESC/E(Z) complex / RSC-type complex / protein-lysine N-methyltransferase activity / negative regulation of stem cell differentiation / pronucleus / cardiac muscle hypertrophy in response to stress / synaptic transmission, GABAergic / G1 to G0 transition / lncRNA binding / positive regulation of dendrite development / histone H3 methyltransferase activity / negative regulation of gene expression, epigenetic / : / negative regulation of G1/S transition of mitotic cell cycle / histone methyltransferase activity / oligodendrocyte differentiation / negative regulation of transcription elongation by RNA polymerase II / Transcriptional Regulation by E2F6 / subtelomeric heterochromatin formation / negative regulation of cell differentiation / enzyme activator activity / negative regulation of cytokine production involved in inflammatory response / positive regulation of epithelial to mesenchymal transition / RNA polymerase II core promoter sequence-specific DNA binding / ribonucleoprotein complex binding / pericentric heterochromatin / heterochromatin formation / keratinocyte differentiation / protein localization to chromatin / methylated histone binding / SUMOylation of chromatin organization proteins / B cell differentiation / transcription corepressor binding / PRC2 methylates histones and DNA / Regulation of PTEN gene transcription / Defective pyroptosis / liver regeneration / promoter-specific chromatin binding / stem cell differentiation / hippocampus development / G1/S transition of mitotic cell cycle / protein modification process / positive regulation of MAP kinase activity / positive regulation of protein serine/threonine kinase activity / negative regulation of DNA-binding transcription factor activity / regulation of circadian rhythm / chromatin DNA binding / cellular response to hydrogen peroxide / PKMTs methylate histone lysines / positive regulation of GTPase activity / Activation of anterior HOX genes in hindbrain development during early embryogenesis / HCMV Early Events / structural constituent of chromatin / transcription corepressor activity / rhythmic process / nucleosome / response to estradiol / chromatin organization / Oxidative Stress Induced Senescence / cell population proliferation / chromosome, telomeric region / nuclear body / ribonucleoprotein complex / RNA polymerase II cis-regulatory region sequence-specific DNA binding / protein heterodimerization activity / negative regulation of DNA-templated transcription / synapse / chromatin binding / positive regulation of cell population proliferation / chromatin / nucleolus / regulation of DNA-templated transcription
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 / Polycomb repressive complex 2 tri-helical domain ...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. / SET (Su(var)3-9, Enhancer-of-zeste, Trithorax) domain / SANT SWI3, ADA2, N-CoR and TFIIIB'' DNA-binding domains / SET domain superfamily / SET domain / SANT/Myb domain / SET domain profile. / SET domain / Zinc finger C2H2 type domain signature. / 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. / Histone H4 / Histone H4 / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / 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
Similarity search - Domain/homology
S-ADENOSYL-L-HOMOCYSTEINE / DNA / DNA (> 10) / DNA (> 100) / Histone H2B 1.1 / Histone H2A type 1 / Histone H4 / Histone H3.2 / Polycomb protein SUZ12 / Histone-lysine N-methyltransferase EZH2 ...S-ADENOSYL-L-HOMOCYSTEINE / DNA / DNA (> 10) / DNA (> 100) / Histone H2B 1.1 / Histone H2A type 1 / Histone H4 / Histone H3.2 / Polycomb protein SUZ12 / Histone-lysine N-methyltransferase EZH2 / Histone-lysine N-methyltransferase EZH2 / Histone H2A
Similarity search - Component
Biological speciesHomo sapiens (human)
Xenopus laevis (African clawed frog)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.4 Å
AuthorsFinogenova, K. / Benda, C. / Schaefer, I.B. / Poepsel, S. / Strauss, M. / Mueller, J.
Funding support Germany, 2items
OrganizationGrant numberCountry
German Research Foundation (DFG)SFB1064 Germany
Max Planck Society Germany
CitationJournal: 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
DepositionOct 29, 2020Deposition site: PDBE / Processing site: PDBE
Revision 1.0Dec 9, 2020Provider: repository / Type: Initial release

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Structure visualization

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Assembly

Deposited unit
A: Isoform 2 of Histone-lysine N-methyltransferase EZH2,Isoform 2 of Histone-lysine N-methyltransferase EZH2,Histone-lysine N-methyltransferase EZH2,Isoform 2 of Histone-lysine N-methyltransferase EZH2,Isoform 2 of Histone-lysine N-methyltransferase EZH2
C: Polycomb protein SUZ12
D: Histone H3.2
E: Histone H4
F: Histone H2A
G: Histone H2B 1.1
H: Histone H3.2
I: Histone H4
J: Histone H2A
K: Histone H2B 1.1
T: Widom601 DNA plus linker
U: Widom601 DNA plus linker
hetero molecules


Theoretical massNumber of molelcules
Total (without water)375,66720
Polymers374,82512
Non-polymers8428
Water0
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: native gel electrophoresis
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area61330 Å2
ΔGint-486 kcal/mol
Surface area105700 Å2
MethodPISA

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Components

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Protein , 6 types, 10 molecules ACDHEIFJGK

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


Mass: 87195.328 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: Q15910-2, UniProt: Q15910*PLUS, [histone H3]-lysine27 N-trimethyltransferase
#2: Protein Polycomb protein SUZ12 / Polycomb-group proteins / 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: 83181.922 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 Histone H3.2


Mass: 15303.930 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
#4: Protein Histone H4 /


Mass: 11263.231 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
#5: Protein Histone H2A /


Mass: 13978.241 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Gene: hist1h2aj, LOC494591 / Production host: Escherichia coli (E. coli) / References: UniProt: Q6AZJ8, UniProt: P06897*PLUS
#6: Protein Histone H2B 1.1 / H2B1.1


Mass: 13524.752 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

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Widom601 DNA plus ... , 2 types, 2 molecules TU

#7: DNA chain Widom601 DNA plus linker


Mass: 47904.535 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)
#8: DNA chain Widom601 DNA plus linker


Mass: 48402.852 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)

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Non-polymers , 2 types, 8 molecules

#9: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: Zn
#10: Chemical ChemComp-SAH / S-ADENOSYL-L-HOMOCYSTEINE / S-Adenosyl-L-homocysteine


Type: L-peptide linking / Mass: 384.411 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C14H20N6O5S

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Details

Has ligand of interestN

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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
1EM map of EZH2 on nucleosome obtained from signal particle subtraction and focused refinement on PHF1-PRC2:dinucleosome map.COMPLEX#1-#80MULTIPLE SOURCES
2SUZ12 and EZH2COMPLEX#1-#21RECOMBINANT
3HistonesHistoneCOMPLEX#3-#61RECOMBINANT
4DNACOMPLEX#7-#81RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Homo sapiens (human)9606
23Xenopus laevis (African clawed frog)8355
34synthetic construct (others)32630
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
12Trichoplusia ni (cabbage looper)7111
23Escherichia coli (E. coli)562
34Escherichia coli (E. coli)562
Buffer solutionpH: 7.8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE-PROPANE

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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: OTHER
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 52.96 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 4.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 45849 / Symmetry type: POINT

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