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Open data
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Basic information
| Entry | Database: PDB / ID: 8ezb | |||||||||
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| Title | NHEJ Long-range complex with ATP | |||||||||
Components |
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Keywords | DNA BINDING PROTEIN/DNA / Complex / Kinase / NHEJ / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex | |||||||||
| Function / homology | Function and homology informationFHA domain binding / positive regulation of chromosome organization / positive regulation of ligase activity / DNA ligase IV complex / positive regulation of platelet formation / DNA ligase activity / Ku70:Ku80 complex / DN2 thymocyte differentiation / DNA ligase (ATP) / negative regulation of t-circle formation ...FHA domain binding / positive regulation of chromosome organization / positive regulation of ligase activity / DNA ligase IV complex / positive regulation of platelet formation / DNA ligase activity / Ku70:Ku80 complex / DN2 thymocyte differentiation / DNA ligase (ATP) / negative regulation of t-circle formation / T cell receptor V(D)J recombination / DNA end binding / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA ligase (ATP) activity / DNA-dependent protein kinase activity / DNA-dependent protein kinase complex / histone H2AXS139 kinase activity / DNA-dependent protein kinase-DNA ligase 4 complex / immunoglobulin V(D)J recombination / nonhomologous end joining complex / nucleotide-excision repair, DNA gap filling / immature B cell differentiation / single strand break repair / regulation of smooth muscle cell proliferation / cellular response to X-ray / V(D)J recombination / nuclear telomere cap complex / double-strand break repair via alternative nonhomologous end joining / regulation of epithelial cell proliferation / double-strand break repair via classical nonhomologous end joining / isotype switching / Cytosolic sensors of pathogen-associated DNA / protein localization to site of double-strand break / telomere capping / IRF3-mediated induction of type I IFN / regulation of hematopoietic stem cell differentiation / positive regulation of neurogenesis / recombinational repair / regulation of telomere maintenance / protein localization to chromosome, telomeric region / U3 snoRNA binding / DNA biosynthetic process / maturation of 5.8S rRNA / T cell lineage commitment / cellular response to lithium ion / cellular hyperosmotic salinity response / negative regulation of cGAS/STING signaling pathway / positive regulation of double-strand break repair via nonhomologous end joining / response to ionizing radiation / 2-LTR circle formation / B cell lineage commitment / hematopoietic stem cell proliferation / telomeric DNA binding / ligase activity / negative regulation of protein phosphorylation / positive regulation of protein kinase activity / Lyases; Carbon-oxygen lyases; Other carbon-oxygen lyases / site of DNA damage / peptidyl-threonine phosphorylation / T cell differentiation / 5'-deoxyribose-5-phosphate lyase activity / somatic stem cell population maintenance / hematopoietic stem cell differentiation / response to X-ray / chromosome organization / ATP-dependent activity, acting on DNA / ectopic germ cell programmed cell death / somitogenesis / telomere maintenance via telomerase / SUMOylation of DNA damage response and repair proteins / condensed chromosome / DNA polymerase binding / mitotic G1 DNA damage checkpoint signaling / neurogenesis / activation of innate immune response / telomere maintenance / DNA helicase activity / cyclin binding / positive regulation of erythrocyte differentiation / cellular response to leukemia inhibitory factor / positive regulation of translation / B cell differentiation / central nervous system development / stem cell proliferation / response to gamma radiation / cellular response to ionizing radiation / small-subunit processome / Nonhomologous End-Joining (NHEJ) / enzyme activator activity / cellular response to gamma radiation / protein-DNA complex / base-excision repair / regulation of circadian rhythm / brain development / peptidyl-serine phosphorylation / protein destabilization / protein modification process / double-strand break repair via nonhomologous end joining Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 8.9 Å | |||||||||
Authors | Chen, S. / He, Y. | |||||||||
| Funding support | United States, 2items
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Citation | Journal: Sci Adv / Year: 2023Title: Cryo-EM visualization of DNA-PKcs structural intermediates in NHEJ. Authors: Siyu Chen / Alex Vogt / Linda Lee / Tasmin Naila / Ryan McKeown / Alan E Tomkinson / Susan P Lees-Miller / Yuan He / ![]() Abstract: DNA double-strand breaks (DSBs), one of the most cytotoxic forms of DNA damage, can be repaired by the tightly regulated nonhomologous end joining (NHEJ) machinery (Stinson and Loparo and Zhao ). ...DNA double-strand breaks (DSBs), one of the most cytotoxic forms of DNA damage, can be repaired by the tightly regulated nonhomologous end joining (NHEJ) machinery (Stinson and Loparo and Zhao ). Core NHEJ factors form an initial long-range (LR) synaptic complex that transitions into a DNA-PKcs (DNA-dependent protein kinase, catalytic subunit)-free, short-range state to align the DSB ends (Chen ). Using single-particle cryo-electron microscopy, we have visualized three additional key NHEJ complexes representing different transition states, with DNA-PKcs adopting distinct dimeric conformations within each of them. Upon DNA-PKcs autophosphorylation, the LR complex undergoes a substantial conformational change, with both Ku and DNA-PKcs rotating outward to promote DNA break exposure and DNA-PKcs dissociation. We also captured a dimeric state of catalytically inactive DNA-PKcs, which resembles structures of other PIKK (Phosphatidylinositol 3-kinase-related kinase) family kinases, revealing a model of the full regulatory cycle of DNA-PKcs during NHEJ. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8ezb.cif.gz | 2.1 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb8ezb.ent.gz | 1.7 MB | Display | PDB format |
| PDBx/mmJSON format | 8ezb.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ez/8ezb ftp://data.pdbj.org/pub/pdb/validation_reports/ez/8ezb | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 28733MC ![]() 8ez9C ![]() 8ezaC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-X-ray repair cross-complementing protein ... , 2 types, 4 molecules AJBK
| #1: Protein | Mass: 69945.039 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: XRCC6, G22P1 / Production host: ![]() References: UniProt: P12956, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement, Lyases; Carbon-oxygen lyases; Other carbon-oxygen lyases #2: Protein | Mass: 82812.438 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: XRCC5, G22P2 / Production host: ![]() References: UniProt: P13010, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement |
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-Protein , 5 types, 12 molecules CLFGOPHISTXY
| #3: Protein | Mass: 469673.219 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HELAReferences: UniProt: P78527, non-specific serine/threonine protein kinase #6: Protein | Mass: 38337.703 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: XRCC4 / Production host: ![]() #7: Protein | Mass: 33372.234 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: NHEJ1, XLF / Production host: ![]() #8: Protein | Mass: 21663.498 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PAXX, C9orf142, XLS / Production host: ![]() #9: Protein | Mass: 104124.953 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: LIG4 / Production host: ![]() |
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-DNA chain , 2 types, 4 molecules DMEN
| #4: DNA chain | Mass: 9510.159 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human)#5: DNA chain | Mass: 9236.976 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
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-Non-polymers , 2 types, 4 molecules 


| #10: Chemical | | #11: Chemical | |
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-Details
| Has ligand of interest | Y |
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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: NHEJ Long-range complex with ATP / Type: COMPLEX / Entity ID: #1-#9 / Source: MULTIPLE SOURCES |
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| Molecular weight | Value: 1.75 MDa / Experimental value: NO |
| Buffer solution | pH: 7.9 |
| Specimen | Conc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R2/1 |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 302 K |
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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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 60000 X / Calibrated magnification: 60000 X / Nominal defocus max: 4000 nm / Nominal defocus min: 2000 nm / Calibrated defocus min: 2000 nm / Calibrated defocus max: 4000 nm / Cs: 2 mm / C2 aperture diameter: 100 µm / Alignment procedure: BASIC |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature (max): 70 K / Temperature (min): 70 K |
| Image recording | Average exposure time: 4 sec. / Electron dose: 65 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 2 / Num. of real images: 30448 |
| Image scans | Width: 5760 / Height: 4092 |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 3785786 | ||||||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C2 (2 fold cyclic) | ||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 8.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 495819 / Algorithm: FOURIER SPACE / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL / Target criteria: Cross-correlation coefficient |
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About Yorodumi




Homo sapiens (human)
United States, 2items
Citation











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FIELD EMISSION GUN