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Open data
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Basic information
| Entry | Database: PDB / ID: 8oxp | ||||||||||||
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| Title | ATM(Q2971A) in complex with Mg AMP-PNP | ||||||||||||
Components | Serine-protein kinase ATM | ||||||||||||
Keywords | SIGNALING PROTEIN / Ataxia-Telangiectasia Mutated / ATM / kinase | ||||||||||||
| Function / homology | Function and homology informationestablishment of RNA localization to telomere / positive regulation of telomerase catalytic core complex assembly / peptidyl-serine autophosphorylation / meiotic telomere clustering / cellular response to nitrosative stress / negative regulation of telomere capping / establishment of protein-containing complex localization to telomere / Sensing of DNA Double Strand Breaks / lipoprotein catabolic process / positive regulation of telomere maintenance via telomere lengthening ...establishment of RNA localization to telomere / positive regulation of telomerase catalytic core complex assembly / peptidyl-serine autophosphorylation / meiotic telomere clustering / cellular response to nitrosative stress / negative regulation of telomere capping / establishment of protein-containing complex localization to telomere / Sensing of DNA Double Strand Breaks / lipoprotein catabolic process / positive regulation of telomere maintenance via telomere lengthening / oocyte development / DNA-dependent protein kinase activity / extrinsic component of synaptic vesicle membrane / histone mRNA catabolic process / pre-B cell allelic exclusion / female meiotic nuclear division / regulation of telomere maintenance via telomerase / histone H2AXS139 kinase activity / male meiotic nuclear division / cellular response to X-ray / DNA double-strand break processing / V(D)J recombination / DNA repair complex / regulation of autophagosome assembly / pexophagy / Impaired BRCA2 binding to PALB2 / reciprocal meiotic recombination / negative regulation of B cell proliferation / positive regulation of DNA damage response, signal transduction by p53 class mediator / 1-phosphatidylinositol-3-kinase activity / cellular response to stress / mitotic spindle assembly checkpoint signaling / TP53 Regulates Transcription of Caspase Activators and Caspases / HDR through Single Strand Annealing (SSA) / response to ionizing radiation / Homologous DNA Pairing and Strand Exchange / Defective homologous recombination repair (HRR) due to BRCA1 loss of function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA1 binding function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA2/RAD51/RAD51C binding function / Resolution of D-loop Structures through Synthesis-Dependent Strand Annealing (SDSA) / mitotic G2 DNA damage checkpoint signaling / Resolution of D-loop Structures through Holliday Junction Intermediates / TP53 Regulates Transcription of Genes Involved in Cytochrome C Release / positive regulation of double-strand break repair / peroxisomal matrix / Impaired BRCA2 binding to RAD51 / replicative senescence / somitogenesis / Regulation of HSF1-mediated heat shock response / post-embryonic development / Presynaptic phase of homologous DNA pairing and strand exchange / ovarian follicle development / cellular response to retinoic acid / thymus development / regulation of cellular response to heat / determination of adult lifespan / signal transduction in response to DNA damage / positive regulation of telomere maintenance via telomerase / multicellular organism growth / negative regulation of TORC1 signaling / DNA damage checkpoint signaling / positive regulation of cell adhesion / telomere maintenance / regulation of signal transduction by p53 class mediator / Pexophagy / DNA damage response, signal transduction by p53 class mediator / regulation of autophagy / TP53 Regulates Transcription of DNA Repair Genes / cellular response to reactive oxygen species / brain development / Nonhomologous End-Joining (NHEJ) / Stabilization of p53 / cellular response to gamma radiation / Autodegradation of the E3 ubiquitin ligase COP1 / double-strand break repair via homologous recombination / intrinsic apoptotic signaling pathway in response to DNA damage / G2/M DNA damage checkpoint / Regulation of TP53 Activity through Methylation / DNA Damage/Telomere Stress Induced Senescence / double-strand break repair via nonhomologous end joining / Meiotic recombination / cellular senescence / HDR through Homologous Recombination (HRR) / spindle / heart development / neuron apoptotic process / Regulation of TP53 Degradation / positive regulation of neuron apoptotic process / double-strand break repair / protein autophosphorylation / chromosome / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / site of double-strand break / Processing of DNA double-strand break ends / regulation of apoptotic process / Regulation of TP53 Activity through Phosphorylation / protein phosphorylation / non-specific serine/threonine protein kinase / regulation of cell cycle / protein stabilization Similarity search - Function | ||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.6 Å | ||||||||||||
Authors | Howes, A.C. / Perisic, O. / Williams, R.L. | ||||||||||||
| Funding support | United Kingdom, 3items
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Citation | Journal: Sci Adv / Year: 2023Title: Structural insights into the activation of ataxia-telangiectasia mutated by oxidative stress. Authors: Anna C Howes / Olga Perisic / Roger L Williams / ![]() Abstract: Ataxia-telangiectasia mutated (ATM) is a master kinase regulating DNA damage response that is activated by DNA double-strand breaks. However, ATM is also directly activated by reactive oxygen ...Ataxia-telangiectasia mutated (ATM) is a master kinase regulating DNA damage response that is activated by DNA double-strand breaks. However, ATM is also directly activated by reactive oxygen species, but how oxidative activation is achieved remains unknown. We determined the cryo-EM structure of an HO-activated ATM and showed that under oxidizing conditions, ATM formed an intramolecular disulfide bridge between two protomers that are rotated relative to each other when compared to the basal state. This rotation is accompanied by release of the substrate-blocking PRD region and twisting of the N-lobe relative to the C-lobe, which greatly optimizes catalysis. This active site remodeling enabled us to capture a substrate (p53) bound to the enzyme. This provides the first structural insights into how ATM is activated during oxidative stress. | ||||||||||||
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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 | 8oxp.cif.gz | 1.3 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb8oxp.ent.gz | 881.2 KB | Display | PDB format |
| PDBx/mmJSON format | 8oxp.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ox/8oxp ftp://data.pdbj.org/pub/pdb/validation_reports/ox/8oxp | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 17267MC ![]() 8oxmC ![]() 8oxoC ![]() 8oxqC 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
| #1: Protein | Mass: 365005.562 Da / Num. of mol.: 2 / Mutation: Q2971A Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ATM / Production host: Homo sapiens (human)References: UniProt: Q13315, non-specific serine/threonine protein kinase #2: Chemical | #3: Chemical | #4: Chemical | 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: ATM(Q2971A) dimer bound to Mg AMP-PNP / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Homo sapiens (human) / Cell: Kidney (Embryonic) |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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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: 105000 X / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm |
| Specimen holder | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 39.5 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C2 (2 fold cyclic) | ||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 1207435 / Symmetry type: POINT | ||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 7SIC Accession code: 7SIC / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||||||
| Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 316.9 Å2 | ||||||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Homo sapiens (human)
United Kingdom, 3items
Citation






PDBj































FIELD EMISSION GUN
