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- PDB-7yqk: cryo-EM structure of gammaH2AXK15ub-H4K20me2 nucleosome bound to 53BP1 -

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Basic information

Entry
Database: PDB / ID: 7yqk
Titlecryo-EM structure of gammaH2AXK15ub-H4K20me2 nucleosome bound to 53BP1
Components
  • (DNA (145-MER)) x 2
  • Histone H2AX
  • Histone H2B
  • Histone H3.1Histone H3
  • Histone H4
  • Polyubiquitin-B
  • TP53-binding protein 1
  • UDR motif of 53BP1
KeywordsNUCLEAR PROTEIN / nucleosoeme / 53BP1 / complex / H4K20me2 / H2AXK15ub / gammaH2AX
Function / homology
Function and homology information


Chromatin modifying enzymes / epigenetic regulation of gene expression / telomere organization / RNA Polymerase I Promoter Opening / Interleukin-7 signaling / Assembly of the ORC complex at the origin of replication / DNA methylation / Condensation of Prophase Chromosomes / HCMV Late Events / Chromatin modifications during the maternal to zygotic transition (MZT) ...Chromatin modifying enzymes / epigenetic regulation of gene expression / telomere organization / RNA Polymerase I Promoter Opening / Interleukin-7 signaling / Assembly of the ORC complex at the origin of replication / DNA methylation / Condensation of Prophase Chromosomes / HCMV Late Events / Chromatin modifications during the maternal to zygotic transition (MZT) / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / SIRT1 negatively regulates rRNA expression / PRC2 methylates histones and DNA / Defective pyroptosis / HDACs deacetylate histones / RNA Polymerase I Promoter Escape / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / NoRC negatively regulates rRNA expression / B-WICH complex positively regulates rRNA expression / HDMs demethylate histones / PKMTs methylate histone lysines / RMTs methylate histone arginines / Meiotic recombination / Pre-NOTCH Transcription and Translation / nucleosome assembly / Activation of anterior HOX genes in hindbrain development during early embryogenesis / HCMV Early Events / Transcriptional regulation of granulopoiesis / structural constituent of chromatin / nucleosome / gene expression / RUNX1 regulates transcription of genes involved in differentiation of HSCs / chromatin organization / Factors involved in megakaryocyte development and platelet production / HATs acetylate histones / Senescence-Associated Secretory Phenotype (SASP) / Oxidative Stress Induced Senescence / Estrogen-dependent gene expression / nuclear body / cadherin binding / Amyloid fiber formation / protein heterodimerization activity / DNA damage response / protein-containing complex / DNA binding / extracellular exosome / extracellular region / nucleoplasm / membrane / nucleus
Similarity search - Function
: / BRCA1 C Terminus (BRCT) domain / Tumour suppressor p53-binding protein-1 Tudor domain / Tumour suppressor p53-binding protein-1 Tudor / : / : / breast cancer carboxy-terminal domain / BRCT domain profile. / BRCT domain / BRCT domain superfamily ...: / BRCA1 C Terminus (BRCT) domain / Tumour suppressor p53-binding protein-1 Tudor domain / Tumour suppressor p53-binding protein-1 Tudor / : / : / breast cancer carboxy-terminal domain / BRCT domain profile. / BRCT domain / BRCT domain superfamily / 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. / Ubiquitin conserved site / Ubiquitin domain / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Ubiquitin domain signature. / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 / Histone-fold / Ubiquitin family / Ubiquitin homologues / Ubiquitin-like domain / Ubiquitin domain profile. / Ribosomal protein L2, domain 2 / Ubiquitin-like domain superfamily
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA (> 100) / Histone H4 / Histone H2A / Tumor protein p53 binding protein 1 / Ubiquitin B / Histone H3.1 / Histone H2B type 1-K
Similarity search - Component
Biological speciesHomo sapiens (human)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.38 Å
AuthorsAi, H.S. / GuoChao, C. / Qingyue, G. / Ze-Bin, T. / Zhiheng, D. / Xin, L. / Fan, Y. / Ziyu, X. / Jia-Bin, L. / Changlin, T. / Liu, L.
Funding support China, 5items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)22137005, 22137005, 81621002, and 21621003 for L. L., 21977090 for J.B. L., and 21825703 for C. T. China
The Strategic Priority Research Program of Chinese Academy of SciencesXDB37000000 for C.T. China
The China Postdoctoral Science Foundation2021M691747 for G. C. C. China
The China National Postdoctoral Program for Innovative TalentsBH2340000159 for F.Y. China
Special funding from China Postdoctoral Science Foundation2022TQ0170 for H.S.A. China
CitationJournal: J Am Chem Soc / Year: 2022
Title: Chemical Synthesis of Post-Translationally Modified H2AX Reveals Redundancy in Interplay between Histone Phosphorylation, Ubiquitination, and Methylation on the Binding of 53BP1 with Nucleosomes.
Authors: Huasong Ai / Guo-Chao Chu / Qingyue Gong / Ze-Bin Tong / Zhiheng Deng / Xin Liu / Fan Yang / Ziyu Xu / Jia-Bin Li / Changlin Tian / Lei Liu /
Abstract: The chemical synthesis of homogeneously modified histones is a powerful approach to quantitatively decipher how post-translational modifications (PTMs) modulate epigenetic events. Herein, we describe ...The chemical synthesis of homogeneously modified histones is a powerful approach to quantitatively decipher how post-translational modifications (PTMs) modulate epigenetic events. Herein, we describe the expedient syntheses of a selection of phosphorylated and ubiquitinated H2AX proteins in a strategy integrating expressed protein hydrazinolysis and auxiliary-mediated protein ligation. These modified H2AX proteins were then used to discover that although H2AXS139 phosphorylation can enhance the binding of the DNA damage repair factor 53BP1 to either an unmodified nucleosome or that bearing a single H2AXK15ub or H4K20me2 modification, it augments 53BP1's binding only weakly to nucleosomes bearing both H2AXK15ub and H4K20me2. To better understand why such a trivalent additive effect is lacking, we solved the cryo-EM structure (3.38 Å) of the complex of 53BP1 with the H2AXK15ub/S139ph_H4K20me2 nucleosome, which showed that H2AXS139 phosphorylation distorts the interaction interface between ubiquitin and 53BP1's UDR motif. Our study revealed that there is redundancy in the interplay of multiple histone PTMs, which may be useful for controlling the dynamic distribution of effector proteins onto nucleosomes bearing different histone variants and PTMs in a time-dependent fashion, through specific cellular biochemical events.
History
DepositionAug 7, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Aug 17, 2022Provider: repository / Type: Initial release
Revision 1.1Feb 15, 2023Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.identifier_ORCID / _citation_author.name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Histone H3.1
B: Histone H4
C: Histone H2AX
D: Histone H2B
E: Histone H3.1
F: Histone H4
G: Histone H2AX
H: Histone H2B
I: DNA (145-MER)
J: DNA (145-MER)
O: Polyubiquitin-B
K: UDR motif of 53BP1
N: TP53-binding protein 1


Theoretical massNumber of molelcules
Total (without water)201,81513
Polymers201,81513
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration, native gel electrophoresis, microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 6 types, 10 molecules AEBFCGDHON

#1: Protein Histone H3.1 / Histone H3 / Histone H3/a / Histone H3/b / Histone H3/c / Histone H3/d / Histone H3/f / Histone H3/h / Histone ...Histone H3/a / Histone H3/b / Histone H3/c / Histone H3/d / Histone H3/f / Histone H3/h / Histone H3/i / Histone H3/j / Histone H3/k / Histone H3/l


Mass: 11762.835 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human)
Gene: H3C1, H3FA, HIST1H3A, H3C2, H3FL, HIST1H3B, H3C3, H3FC HIST1H3C, H3C4, H3FB, HIST1H3D, H3C6, H3FD, HIST1H3E, H3C7, H3FI, HIST1H3F, H3C8, H3FH, HIST1H3G, H3C10, H3FK, HIST1H3H, H3C11, H3FF, ...Gene: H3C1, H3FA, HIST1H3A, H3C2, H3FL, HIST1H3B, H3C3, H3FC HIST1H3C, H3C4, H3FB, HIST1H3D, H3C6, H3FD, HIST1H3E, H3C7, H3FI, HIST1H3F, H3C8, H3FH, HIST1H3G, H3C10, H3FK, HIST1H3H, H3C11, H3FF, HIST1H3I, H3C12, H3FJ, HIST1H3J
Production host: Escherichia coli (E. coli) / References: UniProt: P68431
#2: Protein Histone H4 /


Mass: 9409.056 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli) / References: UniProt: A0A672PXK1
#3: Protein Histone H2AX


Mass: 12194.211 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) / References: UniProt: A0A6P5QZC6
#4: Protein Histone H2B /


Mass: 10764.366 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli) / References: UniProt: Q2M2T1
#7: Protein Polyubiquitin-B


Mass: 8519.778 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: UBB / Production host: Escherichia coli (E. coli) / References: UniProt: J3QS39
#9: Protein TP53-binding protein 1


Mass: 13447.231 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TP53BP1 / Production host: Escherichia coli (E. coli) / References: UniProt: A6NNK5

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DNA chain , 2 types, 2 molecules IJ

#5: DNA chain DNA (145-MER)


Mass: 44520.383 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#6: DNA chain DNA (145-MER)


Mass: 44991.660 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Protein/peptide , 1 types, 1 molecules K

#8: Protein/peptide UDR motif of 53BP1


Mass: 2075.418 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli)

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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

ComponentName: Complex of 53BP1(1484-1972) and gammaH2AXK15ub-H4K20me2 nucleosome
Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE / Humidity: 100 %

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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 / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: DIRECT ELECTRON DE-20 (5k x 3k)

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Processing

SoftwareName: PHENIX / Version: 1.19.2_4158: / Classification: refinement
CTF correctionType: NONE
3D reconstructionResolution: 3.38 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 90830 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00514574
ELECTRON MICROSCOPYf_angle_d0.62320910
ELECTRON MICROSCOPYf_dihedral_angle_d30.0564008
ELECTRON MICROSCOPYf_chiral_restr0.0382371
ELECTRON MICROSCOPYf_plane_restr0.0041646

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