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Open data
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Basic information
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| Title | DNA-PK bound to 153 bp H2AX nucleosome with ATPyS | |||||||||
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Sample |
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Keywords | DNA-binding protein / NHEJ / Ku70/80 / nucleosome / DNA BINDING PROTEIN | |||||||||
| Function / homology | Function and homology informationpositive regulation of platelet formation / Ku70:Ku80 complex / T cell receptor V(D)J recombination / negative regulation of t-circle formation / pro-B cell differentiation / DNA end binding / DNA-dependent protein kinase activity / small-subunit processome assembly / positive regulation of lymphocyte differentiation / histone H2AXS139 kinase activity ...positive regulation of platelet formation / Ku70:Ku80 complex / T cell receptor V(D)J recombination / negative regulation of t-circle formation / pro-B cell differentiation / DNA end binding / DNA-dependent protein kinase activity / small-subunit processome assembly / 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 / immature B cell differentiation / 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 / XY body / double-strand break repair via classical nonhomologous end joining / nuclear telomere cap complex / protein localization to site of double-strand break / chromatin-protein adaptor activity / Cytosolic sensors of pathogen-associated DNA / telomere capping / IRF3-mediated induction of type I IFN / regulation of hematopoietic stem cell differentiation / recombinational repair / positive regulation of neurogenesis / regulation of telomere maintenance / U3 snoRNA binding / protein localization to chromosome, telomeric region / maturation of 5.8S rRNA / T cell lineage commitment / 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 / B cell lineage commitment / 2-LTR circle formation / hematopoietic stem cell proliferation / telomeric DNA binding / 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 / 5'-deoxyribose-5-phosphate lyase activity / hematopoietic stem cell differentiation / negative regulation of tumor necrosis factor-mediated signaling pathway / ATP-dependent activity, acting on DNA / somitogenesis / ectopic germ cell programmed cell death / telomere maintenance via telomerase / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / mitotic G1 DNA damage checkpoint signaling / Packaging Of Telomere Ends / neurogenesis / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Deposition of new CENPA-containing nucleosomes at the centromere / telomere organization / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Interleukin-7 signaling / activation of innate immune response / DNA helicase activity / telomere maintenance / RNA Polymerase I Promoter Opening / epigenetic regulation of gene expression / positive regulation of erythrocyte differentiation / Inhibition of DNA recombination at telomere / Assembly of the ORC complex at the origin of replication / cyclin binding / Meiotic synapsis / DNA damage checkpoint signaling / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / positive regulation of DNA repair / DNA methylation / replication fork / positive regulation of translation / Condensation of Prophase Chromosomes / cellular response to leukemia inhibitory factor / Chromatin modifications during the maternal to zygotic transition (MZT) / SIRT1 negatively regulates rRNA expression / HCMV Late Events / condensed nuclear chromosome / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / response to gamma radiation / PRC2 methylates histones and DNA / Regulation of endogenous retroelements by KRAB-ZFP proteins / innate immune response in mucosa / Defective pyroptosis / meiotic cell cycle Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 5.0 Å | |||||||||
Authors | Hall C / Chaplin AK | |||||||||
| Funding support | Canada, United Kingdom, 2 items
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Citation | Journal: Nat Commun / Year: 2025Title: Cryo-EM structures of NHEJ assemblies with nucleosomes. Authors: Chloe Hall / Philippe Frit / Antonia Kefala-Stavridi / Amandine Pelletier / Steven W Hardwick / Himani Amin / Matthew K Bilyard / Taiana Maia De Oliviera / Ammarah Tariq / Sayma Zahid / ...Authors: Chloe Hall / Philippe Frit / Antonia Kefala-Stavridi / Amandine Pelletier / Steven W Hardwick / Himani Amin / Matthew K Bilyard / Taiana Maia De Oliviera / Ammarah Tariq / Sayma Zahid / Dimitri Y Chirgadze / Shankar Balasubramanian / Katheryn Meek / Virginie Ropars / Jean-Baptiste Charbonnier / Mauro Modesti / Patrick Calsou / Sébastien Britton / Tom L Blundell / Thomas Schalch / Amanda K Chaplin / ![]() Abstract: DNA double-strand breaks (DSBs) are highly deleterious lesions that can trigger cell death or carcinogenesis if unrepaired or misrepaired. In mammals, most DSBs are repaired by non-homologous end ...DNA double-strand breaks (DSBs) are highly deleterious lesions that can trigger cell death or carcinogenesis if unrepaired or misrepaired. In mammals, most DSBs are repaired by non-homologous end joining (NHEJ), which begins when Ku70/80 binds DNA ends and recruits DNA-PKcs to form the DNA-PK holoenzyme. Although recent cryo-EM studies have resolved several NHEJ assemblies, how these factors access DSBs within nucleosomes remains unclear. Here, we present cryo-EM structures of human Ku70/80 and DNA-PK bound to nucleosomes. Ku70/80 binds the DNA end and bends it away from the nucleosome core, while the Ku70 C-terminal SAP domain makes an additional, specific DNA contact. Our DNA-PK-nucleosome structure further reveals the opening of the Ku80 vWA domain, and we show that non-hydrolysable ATP promotes synapsis by stabilising the Ku80-mediated DNA-PK dimer. These structures reveal a model for DSB recognition on nucleosomal DNA and provide insights relevant to targeting NHEJ in cancer therapy. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_53237.map.gz | 143.7 MB | EMDB map data format | |
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| Header (meta data) | emd-53237-v30.xml emd-53237.xml | 33.9 KB 33.9 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_53237_fsc.xml | 13.8 KB | Display | FSC data file |
| Images | emd_53237.png | 30.4 KB | ||
| Filedesc metadata | emd-53237.cif.gz | 11.2 KB | ||
| Others | emd_53237_additional_1.map.gz emd_53237_half_map_1.map.gz emd_53237_half_map_2.map.gz | 135 MB 262.5 MB 262.5 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-53237 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-53237 | HTTPS FTP |
-Validation report
| Summary document | emd_53237_validation.pdf.gz | 841.6 KB | Display | EMDB validaton report |
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| Full document | emd_53237_full_validation.pdf.gz | 841.2 KB | Display | |
| Data in XML | emd_53237_validation.xml.gz | 22.1 KB | Display | |
| Data in CIF | emd_53237_validation.cif.gz | 29.9 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-53237 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-53237 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9qmsMC ![]() 9igwC ![]() 9igxC ![]() 9q80C ![]() 9q8xC ![]() 9q9fC ![]() 9qcrC ![]() 9qcsC M: atomic model generated by this map C: citing same article ( |
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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_53237.map.gz / Format: CCP4 / Size: 282.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 2.472 Å | ||||||||||||||||||||||||||||||||||||
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Additional map: #1
| File | emd_53237_additional_1.map | ||||||||||||
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| Density Histograms |
-Half map: #2
| File | emd_53237_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_53237_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
+Entire : DNA-PK dimer bound to 153bp H2AX nucleosomes with ATPyS
+Supramolecule #1: DNA-PK dimer bound to 153bp H2AX nucleosomes with ATPyS
+Macromolecule #1: DNA-dependent protein kinase catalytic subunit
+Macromolecule #2: X-ray repair cross-complementing protein 5
+Macromolecule #3: Histone H2AX
+Macromolecule #4: Histone H2B type 1-J
+Macromolecule #5: Histone H3.1
+Macromolecule #6: Histone H4
+Macromolecule #7: X-ray repair cross-complementing protein 6
+Macromolecule #8: DNA
+Macromolecule #9: DNA
-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: 7.4 |
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| Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: AIR / Details: 30mA |
| 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 (6k x 4k) / Average electron dose: 50.87 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: 2.0 µm / Nominal defocus min: 0.8 µm |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
Movie
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
Canada,
United Kingdom, 2 items
Citation
































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














































Processing
FIELD EMISSION GUN


