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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 | ||||||||||||||||||
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Title | cryo-EM structure of gammaH2AXK15ub-H4K20me2 nucleosome bound to 53BP1 | ||||||||||||||||||
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![]() | NUCLEAR PROTEIN / nucleosoeme / 53BP1 / complex / H4K20me2 / H2AXK15ub / gammaH2AX | ||||||||||||||||||
Function / homology | ![]() telomere organization / Chromatin modifying enzymes / RNA Polymerase I Promoter Opening / Assembly of the ORC complex at the origin of replication / Interleukin-7 signaling / epigenetic regulation of gene expression / DNA methylation / Condensation of Prophase Chromosomes / HCMV Late Events / SIRT1 negatively regulates rRNA expression ...telomere organization / Chromatin modifying enzymes / RNA Polymerase I Promoter Opening / Assembly of the ORC complex at the origin of replication / Interleukin-7 signaling / epigenetic regulation of gene expression / DNA methylation / Condensation of Prophase Chromosomes / HCMV Late Events / SIRT1 negatively regulates rRNA expression / Chromatin modifications during the maternal to zygotic transition (MZT) / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / Defective pyroptosis / Meiotic recombination / HDACs deacetylate histones / RNA Polymerase I Promoter Escape / Transcriptional regulation by small RNAs / Transcriptional regulation of granulopoiesis / HDMs demethylate histones / Formation of the beta-catenin:TCF transactivating complex / HCMV Early Events / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / NoRC negatively regulates rRNA expression / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / PKMTs methylate histone lysines / B-WICH complex positively regulates rRNA expression / RMTs methylate histone arginines / Pre-NOTCH Transcription and Translation / Activation of anterior HOX genes in hindbrain development during early embryogenesis / structural constituent of chromatin / nucleosome / Factors involved in megakaryocyte development and platelet production / nucleosome assembly / chromatin organization / Senescence-Associated Secretory Phenotype (SASP) / RUNX1 regulates transcription of genes involved in differentiation of HSCs / HATs acetylate histones / gene expression / Oxidative Stress Induced Senescence / Estrogen-dependent gene expression / nuclear body / cadherin binding / protein heterodimerization activity / Amyloid fiber formation / DNA damage response / protein-containing complex / DNA binding / extracellular exosome / extracellular region / nucleoplasm / membrane / nucleus Similarity search - Function | ||||||||||||||||||
Biological species | ![]() synthetic construct (others) | ||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.38 Å | ||||||||||||||||||
![]() | Ai, 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 | ![]()
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![]() | ![]() 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 |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 320.2 KB | Display | ![]() |
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PDB format | ![]() | 242.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.1 MB | Display | |
Data in XML | ![]() | 42.3 KB | Display | |
Data in CIF | ![]() | 66.6 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 34028MC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Protein , 6 types, 10 molecules AEBFCGDHON
#1: Protein | Mass: 11762.835 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() 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: ![]() ![]() #2: Protein | Mass: 9409.056 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #3: Protein | Mass: 12194.211 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) / References: UniProt: A0A6P5QZC6 #4: Protein | Mass: 10764.366 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #7: Protein | | Mass: 8519.778 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #9: Protein | | Mass: 13447.231 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-DNA chain , 2 types, 2 molecules IJ
#5: DNA chain | Mass: 44520.383 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
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#6: DNA chain | Mass: 44991.660 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
-Protein/peptide , 1 types, 1 molecules K
#8: Protein/peptide | Mass: 2075.418 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-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: Complex of 53BP1(1484-1972) and gammaH2AXK15ub-H4K20me2 nucleosome Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE / Humidity: 100 % |
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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 / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: DIRECT ELECTRON DE-20 (5k x 3k) |
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Processing
Software | Name: PHENIX / Version: 1.19.2_4158: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: NONE | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.38 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 90830 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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