+ Open data
Open data
- Basic information
Basic information
| Entry | Database: PDB / ID: 7su3 | |||||||||||||||||||||||||||
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| Title | CryoEM structure of DNA-PK complex VII | |||||||||||||||||||||||||||
|  Components | 
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|  Keywords | DNA BINDING PROTEIN/DNA / NHEJ / DNA-PK / Kinase / DNA repair / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex | |||||||||||||||||||||||||||
| Function / homology |  Function and homology information positive regulation of platelet formation / Ku70:Ku80 complex / 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-dependent protein kinase activity / DNA-dependent protein kinase complex ...positive regulation of platelet formation / Ku70:Ku80 complex / 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-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 / immature B cell differentiation / regulation of smooth muscle cell proliferation / cellular response to X-ray / 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 / telomere capping / Cytosolic sensors of pathogen-associated DNA  / IRF3-mediated induction of type I IFN / positive regulation of neurogenesis / regulation of hematopoietic stem cell differentiation / recombinational repair / 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 / 2-LTR circle formation / B cell lineage commitment / telomeric DNA binding / hematopoietic stem cell proliferation / 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 / ATP-dependent activity, acting on DNA / ectopic germ cell programmed cell death / somitogenesis / telomere maintenance via telomerase / mitotic G1 DNA damage checkpoint signaling / neurogenesis / telomere maintenance / activation of innate immune response / DNA helicase activity / cyclin binding / positive regulation of erythrocyte differentiation / positive regulation of translation / cellular response to leukemia inhibitory factor / response to gamma radiation / small-subunit processome / enzyme activator activity / Nonhomologous End-Joining (NHEJ) / cellular response to gamma radiation / protein-DNA complex / regulation of circadian rhythm / brain development / protein destabilization / peptidyl-serine phosphorylation / double-strand break repair via nonhomologous end joining / protein modification process / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / cellular response to insulin stimulus / intrinsic apoptotic signaling pathway in response to DNA damage / rhythmic process / T cell differentiation in thymus / double-strand break repair / E3 ubiquitin ligases ubiquitinate target proteins / heart development / double-stranded DNA binding / scaffold protein binding / secretory granule lumen / DNA recombination / transcription regulator complex / ficolin-1-rich granule lumen / damaged DNA binding / RNA polymerase II-specific DNA-binding transcription factor binding / chromosome, telomeric region / protein phosphorylation / non-specific serine/threonine protein kinase / protein kinase activity / transcription cis-regulatory region binding / positive regulation of apoptotic process / ribonucleoprotein complex / protein domain specific binding / innate immune response / protein serine kinase activity / negative regulation of DNA-templated transcription / protein serine/threonine kinase activity / ubiquitin protein ligase binding Similarity search - Function | |||||||||||||||||||||||||||
| Biological species |  Homo sapiens (human)   Escherichia coli (E. coli) | |||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||||||||||||||||||||
|  Authors | Chen, X. / Liu, L. / Gellert, M. / Yang, W. | |||||||||||||||||||||||||||
| Funding support |  United States, 1items 
 | |||||||||||||||||||||||||||
|  Citation |  Journal: Mol Cell / Year: 2022 Title: Autophosphorylation transforms DNA-PK from protecting to processing DNA ends. Authors: Lan Liu / Xuemin Chen / Jun Li / Huaibin Wang / Christopher J Buehl / Noah J Goff / Katheryn Meek / Wei Yang / Martin Gellert /  Abstract: The DNA-dependent protein kinase (DNA-PK) initially protects broken DNA ends but then promotes their processing during non-homologous end joining (NHEJ). Before ligation by NHEJ, DNA hairpin ends ...The DNA-dependent protein kinase (DNA-PK) initially protects broken DNA ends but then promotes their processing during non-homologous end joining (NHEJ). Before ligation by NHEJ, DNA hairpin ends generated during V(D)J recombination must be opened by the Artemis nuclease, together with autophosphorylated DNA-PK. Structures of DNA-PK bound to DNA before and after phosphorylation, and in complex with Artemis and a DNA hairpin, reveal an essential functional switch. When bound to open DNA ends in its protection mode, DNA-PK is inhibited for cis-autophosphorylation of the so-called ABCDE cluster but activated for phosphorylation of other targets. In contrast, DNA hairpin ends promote cis-autophosphorylation. Phosphorylation of four Thr residues in ABCDE leads to gross structural rearrangement of DNA-PK, widening the DNA binding groove for Artemis recruitment and hairpin cleavage. Meanwhile, Artemis locks DNA-PK into the kinase-inactive state. Kinase activity and autophosphorylation of DNA-PK are regulated by different DNA ends, feeding forward to coordinate NHEJ events. | |||||||||||||||||||||||||||
| History | 
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- Structure visualization
Structure visualization
| Movie | 
 
  Movie viewer | 
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| Structure viewer | Molecule:  Molmil  Jmol/JSmol | 
- Downloads & links
Downloads & links
- Download
Download
| PDBx/mmCIF format |  7su3.cif.gz | 918.9 KB | Display |  PDBx/mmCIF format | 
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| PDB format |  pdb7su3.ent.gz | 736.7 KB | Display |  PDB format | 
| PDBx/mmJSON format |  7su3.json.gz | Tree view |  PDBx/mmJSON format | |
| Others |  Other downloads | 
-Validation report
| Summary document |  7su3_validation.pdf.gz | 1.2 MB | Display |  wwPDB validaton report | 
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| Full document |  7su3_full_validation.pdf.gz | 1.3 MB | Display | |
| Data in XML |  7su3_validation.xml.gz | 122.1 KB | Display | |
| Data in CIF |  7su3_validation.cif.gz | 192.4 KB | Display | |
| Arichive directory |  https://data.pdbj.org/pub/pdb/validation_reports/su/7su3  ftp://data.pdbj.org/pub/pdb/validation_reports/su/7su3 | HTTPS FTP | 
-Related structure data
| Related structure data |  25439MC  7sglC  7sudC C: citing same article ( M: map data used to model this data | 
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| Similar structure data | 
- Links
Links
- Assembly
Assembly
| Deposited unit |  
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| 1 | 
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- Components
Components
-Protein , 1 types, 1 molecules A
| #1: Protein | Mass: 469673.219 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.)  Homo sapiens (human) / Gene: PRKDC, HYRC, HYRC1 / Production host:  Homo sapiens (human) References: UniProt: P78527, non-specific serine/threonine protein kinase | 
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-X-ray repair cross-complementing protein  ... , 2 types, 2 molecules BC 
| #2: Protein | Mass: 69945.039 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.)  Homo sapiens (human) / Gene: XRCC6, G22P1 / Production host:  Homo sapiens (human) 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 | 
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| #3: Protein | Mass: 82812.438 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.)  Homo sapiens (human) / Gene: XRCC5, G22P2 / Production host:  Homo sapiens (human) References: UniProt: P13010, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement | 
-DNA chain , 2 types, 4 molecules DFEG   
| #4: DNA chain | Mass: 7311.714 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.)    Escherichia coli (E. coli) #5: DNA chain | Mass: 4956.243 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.)    Escherichia coli (E. coli) | 
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-Non-polymers , 2 types, 2 molecules 


| #6: Chemical | ChemComp-ATP / | 
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| #7: Chemical | ChemComp-IHP / | 
-Details
| Has ligand of interest | Y | 
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| Has protein modification | N | 
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY | 
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction | 
- Sample preparation
Sample preparation
| Component | Name: DNA-PK Complex VII / Type: COMPLEX / Entity ID: #1-#5 / Source: MULTIPLE SOURCES | 
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| Buffer solution | pH: 7.9 | 
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | 
| Vitrification | Cryogen name: ETHANE | 
- Electron microscopy imaging
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 | 
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) | 
- Processing
Processing
| Software | Name: PHENIX / Version: 1.14_3260: / Classification: refinement | ||||||||||||||||||||||||
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| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 56055 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refine LS restraints | 
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