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Open data
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Basic information
| Entry | Database: PDB / ID: 8eza | |||||||||
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| Title | NHEJ Long-range complex with PAXX | |||||||||
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 / DN2 thymocyte differentiation / positive regulation of ligase activity / DNA ligase IV complex / positive regulation of platelet formation / DNA ligase activity / DNA double-strand break attachment to nuclear envelope / Ku70:Ku80 complex / T cell receptor V(D)J recombination ...FHA domain binding / positive regulation of chromosome organization / DN2 thymocyte differentiation / positive regulation of ligase activity / DNA ligase IV complex / positive regulation of platelet formation / DNA ligase activity / DNA double-strand break attachment to nuclear envelope / Ku70:Ku80 complex / T cell receptor V(D)J recombination / DNA ligase (ATP) / negative regulation of t-circle formation / pro-B cell differentiation / DNA end binding / DNA-dependent protein kinase activity / small-subunit processome assembly / DNA ligase (ATP) activity / positive regulation of lymphocyte differentiation / histone H2AXS139 kinase activity / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / immunoglobulin V(D)J recombination / nonhomologous end joining complex / nucleotide-excision repair, DNA gap filling / single strand break repair / immature B cell differentiation / V(D)J recombination / regulation of smooth muscle cell proliferation / cellular response to X-ray / regulation of epithelial cell proliferation / double-strand break repair via alternative nonhomologous end joining / double-strand break repair via classical nonhomologous end joining / isotype switching / nuclear telomere cap complex / 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 / regulation of telomere maintenance / recombinational repair / protein localization to chromosome, telomeric region / U3 snoRNA binding / peptidyl-threonine phosphorylation / positive regulation of neurogenesis / maturation of 5.8S rRNA / T cell lineage commitment / cellular response to lithium ion / cellular hyperosmotic salinity response / DNA biosynthetic process / positive regulation of double-strand break repair via nonhomologous end joining / B cell lineage commitment / negative regulation of cGAS/STING signaling pathway / 2-LTR circle formation / response to ionizing radiation / hematopoietic stem cell proliferation / AMP binding / ligase activity / telomeric repeat DNA binding / negative regulation of protein phosphorylation / DNA 3'-5' helicase / T cell differentiation / somatic stem cell population maintenance / 5'-deoxyribose-5-phosphate lyase activity / chromosome organization / hematopoietic stem cell differentiation / response to X-ray / ectopic germ cell programmed cell death / ATP-dependent activity, acting on DNA / somitogenesis / telomere maintenance via telomerase / SUMOylation of DNA damage response and repair proteins / site of DNA damage / condensed chromosome / mitotic G1 DNA damage checkpoint signaling / DNA polymerase binding / activation of innate immune response / neurogenesis / positive regulation of erythrocyte differentiation / B cell differentiation / telomere maintenance / cyclin binding / stem cell proliferation / DNA-(apurinic or apyrimidinic site) lyase / protein modification process / DNA helicase activity / peptidyl-serine phosphorylation / cellular response to leukemia inhibitory factor / central nervous system development / cellular response to ionizing radiation / positive regulation of translation / response to gamma radiation / Nonhomologous End-Joining (NHEJ) / small-subunit processome / cellular response to gamma radiation / regulation of circadian rhythm / protein-DNA complex / brain development / base-excision repair / establishment of integrated proviral latency Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.39 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 | 8eza.cif.gz | 2.1 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb8eza.ent.gz | 1.7 MB | Display | PDB format |
| PDBx/mmJSON format | 8eza.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ez/8eza ftp://data.pdbj.org/pub/pdb/validation_reports/ez/8eza | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 28732MC ![]() 8ez9C ![]() 8ezbC 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
-Protein , 5 types, 12 molecules STLCHIFGOPXY
| #1: 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: ![]() #4: Protein | Mass: 469673.219 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HELA / References: UniProt: P78527#8: 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: ![]() #9: 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: ![]() #10: 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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-X-ray repair cross-complementing protein ... , 2 types, 4 molecules JAKB
| #2: Protein | Mass: 69945.039 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: unidentified baculovirus / References: UniProt: P12956#3: Protein | Mass: 82812.438 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: unidentified baculovirus / References: UniProt: P13010 |
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-DNA chain , 2 types, 4 molecules MDNE
| #6: DNA chain | Mass: 9510.159 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human)#7: DNA chain | Mass: 9236.976 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) |
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-Protein/peptide / Non-polymers , 2 types, 4 molecules RQ

| #11: Chemical | | #5: Protein/peptide | Mass: 1720.111 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / Cell line: HELA / References: non-specific serine/threonine protein kinase |
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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 PAXX / Type: COMPLEX / Entity ID: #1-#7, #9-#10, #8 / 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: 1 / Num. of real images: 11006 |
| 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: 1101255 | ||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C2 (2 fold cyclic) | ||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 4.39 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 138252 / 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











PDBj















































unidentified baculovirus
FIELD EMISSION GUN