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Open data
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Basic information
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| Title | CryoEM structure of the DNA-PK complex bound to N20 nucleosome | |||||||||
Map data | composite map for DNA-PK bound to N20 | |||||||||
Sample |
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Keywords | NHEJ / DNA-PK / DNA repair / nucleosome / Ku70/80 / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex | |||||||||
| Function / homology | Function and homology informationpositive regulation of platelet formation / Ku70:Ku80 complex / negative regulation of t-circle formation / DNA-dependent protein kinase activity / DNA end binding / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / immunoglobulin V(D)J recombination ...positive regulation of platelet formation / Ku70:Ku80 complex / negative regulation of t-circle formation / DNA-dependent protein kinase activity / DNA end binding / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase complex / DNA-dependent protein kinase-DNA ligase 4 complex / immunoglobulin V(D)J recombination / histone H2AXS139 kinase activity / nonhomologous end joining complex / cellular response to X-ray / regulation of epithelial cell proliferation / regulation of smooth muscle cell proliferation / double-strand break repair via classical nonhomologous end joining / double-strand break repair via alternative nonhomologous end joining / Cytosolic sensors of pathogen-associated DNA / nuclear telomere cap complex / telomere capping / IRF3-mediated induction of type I IFN / regulation of hematopoietic stem cell differentiation / cellular hyperosmotic salinity response / U3 snoRNA binding / regulation of telomere maintenance / recombinational repair / maturation of 5.8S rRNA / protein localization to chromosome, telomeric region / positive regulation of double-strand break repair via nonhomologous end joining / negative regulation of cGAS/STING signaling pathway / 2-LTR circle formation / peptidyl-threonine phosphorylation / telomeric repeat DNA binding / negative regulation of protein phosphorylation / DNA 3'-5' helicase / 5'-deoxyribose-5-phosphate lyase activity / ATP-dependent activity, acting on DNA / 3'-5' DNA helicase activity / telomere maintenance via telomerase / mitotic G1 DNA damage checkpoint signaling / positive regulation of erythrocyte differentiation / activation of innate immune response / telomere maintenance / cyclin binding / protein modification process / DNA-(apurinic or apyrimidinic site) lyase / class I DNA-(apurinic or apyrimidinic site) endonuclease activity / DNA helicase activity / site of DNA damage / intrinsic apoptotic signaling pathway in response to DNA damage / positive regulation of translation / small-subunit processome / Nonhomologous End-Joining (NHEJ) / cellular response to gamma radiation / protein-DNA complex / peptidyl-serine phosphorylation / double-strand break repair via nonhomologous end joining / regulation of circadian rhythm / enzyme activator activity / nucleosomal DNA binding / innate immune response in mucosa / double-strand break repair / structural constituent of chromatin / cellular response to insulin stimulus / nucleosome / nucleosome assembly / E3 ubiquitin ligases ubiquitinate target proteins / transcription regulator complex / chromatin organization / DNA recombination / antimicrobial humoral immune response mediated by antimicrobial peptide / double-stranded DNA binding / heterochromatin formation / scaffold protein binding / secretory granule lumen / antibacterial humoral response / ficolin-1-rich granule lumen / damaged DNA binding / RNA polymerase II-specific DNA-binding transcription factor binding / protein kinase activity / innate immune response / protein phosphorylation / chromosome, telomeric region / non-specific serine/threonine protein kinase / transcription cis-regulatory region binding / chromosome / ribonucleoprotein complex / protein heterodimerization activity / protein domain specific binding / protein serine kinase activity / negative regulation of DNA-templated transcription / ubiquitin protein ligase binding / protein serine/threonine kinase activity / DNA damage response / negative regulation of apoptotic process / nucleolus / Neutrophil degranulation / positive regulation of DNA-templated transcription / chromatin / protein-containing complex binding Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.93 Å | |||||||||
Authors | Lu W / He Y | |||||||||
| Funding support | United States, 1 items
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Citation | Journal: Nat Commun / Year: 2026Title: DNA-PK driven nucleosome unwrapping enables NHEJ in chromatin Authors: Lu W / Vogt A / Lees-Miller SP / He Y | |||||||||
| History |
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_74444.map.gz | 10.5 MB | EMDB map data format | |
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| Header (meta data) | emd-74444-v30.xml emd-74444.xml | 29.2 KB 29.2 KB | Display Display | EMDB header |
| Images | emd_74444.png | 32.9 KB | ||
| Filedesc metadata | emd-74444.cif.gz | 10.4 KB | ||
| Archive directory | https://data.pdbj.org/pub/emdb/structures/EMD-74444 ftp://data.pdbj.org/pub/emdb/structures/EMD-74444 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9zncMC ![]() 9zmmC ![]() 9zobC ![]() 9zp0C ![]() 9zp9C C: citing same article ( M: atomic model generated by this map |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_74444.map.gz / Format: CCP4 / Size: 343 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | composite map for DNA-PK bound to N20 | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.0592 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
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Sample components
+Entire : CryoEM structure of the DNA-PK complex bound to N20 nucleosome, s...
+Supramolecule #1: CryoEM structure of the DNA-PK complex bound to N20 nucleosome, s...
+Supramolecule #2: N20 nucleosome
+Supramolecule #3: DNA-PK complex
+Macromolecule #1: Histone H3
+Macromolecule #2: Histone H4
+Macromolecule #3: Histone H2A
+Macromolecule #4: Histone H2B
+Macromolecule #6: DNA-dependent protein kinase catalytic subunit
+Macromolecule #7: Unknown peptide
+Macromolecule #9: X-ray repair cross-complementing protein 6
+Macromolecule #10: DNA repair protein Ku80
+Macromolecule #5: DNA (164-MER)
+Macromolecule #8: DNA (164-MER)
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | TFS KRIOS |
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| Image recording | Film or detector model: GATAN K3 BIOCONTINUUM (6k x 4k) / Average electron dose: 62.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 4.0 µm / Nominal defocus min: 2.0 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
United States, 1 items
Citation


































Z (Sec.)
Y (Row.)
X (Col.)






















Processing
FIELD EMISSION GUN

