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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 | ||||||||||||
![]() | Serine-protein kinase ATM | ||||||||||||
![]() | SIGNALING PROTEIN / Ataxia-Telangiectasia Mutated / ATM / kinase | ||||||||||||
Function / homology | ![]() positive regulation of DNA catabolic process / establishment of RNA localization to telomere / positive regulation of telomerase catalytic core complex assembly / negative regulation of telomere capping / Sensing of DNA Double Strand Breaks / cellular response to nitrosative stress / establishment of protein-containing complex localization to telomere / regulation of microglial cell activation / meiotic telomere clustering / positive regulation of telomere maintenance via telomere lengthening ...positive regulation of DNA catabolic process / establishment of RNA localization to telomere / positive regulation of telomerase catalytic core complex assembly / negative regulation of telomere capping / Sensing of DNA Double Strand Breaks / cellular response to nitrosative stress / establishment of protein-containing complex localization to telomere / regulation of microglial cell activation / meiotic telomere clustering / positive regulation of telomere maintenance via telomere lengthening / pre-B cell allelic exclusion / male meiotic nuclear division / histone mRNA catabolic process / extrinsic component of synaptic vesicle membrane / female meiotic nuclear division / regulation of telomere maintenance via telomerase / cellular response to X-ray / peptidyl-serine autophosphorylation / DNA double-strand break processing / lipoprotein catabolic process / regulation of autophagosome assembly / V(D)J recombination / pexophagy / Impaired BRCA2 binding to PALB2 / oocyte development / reciprocal meiotic recombination / DNA repair complex / positive regulation of DNA damage response, signal transduction by p53 class mediator / 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) / Resolution of D-loop Structures through Holliday Junction Intermediates / 1-phosphatidylinositol-3-kinase activity / HDR through Single Strand Annealing (SSA) / positive regulation of double-strand break repair / response to ionizing radiation / Impaired BRCA2 binding to RAD51 / mitotic spindle assembly checkpoint signaling / negative regulation of B cell proliferation / cellular response to stress / TP53 Regulates Transcription of Caspase Activators and Caspases / mitotic G2 DNA damage checkpoint signaling / TP53 Regulates Transcription of Genes Involved in Cytochrome C Release / peroxisomal matrix / Presynaptic phase of homologous DNA pairing and strand exchange / replicative senescence / signal transduction in response to DNA damage / Regulation of HSF1-mediated heat shock response / somitogenesis / regulation of cellular response to heat / ovarian follicle development / cellular response to retinoic acid / negative regulation of TORC1 signaling / positive regulation of telomere maintenance via telomerase / telomere maintenance / positive regulation of cell adhesion / Pexophagy / DNA damage checkpoint signaling / thymus development / regulation of signal transduction by p53 class mediator / post-embryonic development / determination of adult lifespan / cellular response to reactive oxygen species / Nonhomologous End-Joining (NHEJ) / TP53 Regulates Transcription of DNA Repair Genes / Stabilization of p53 / Autodegradation of the E3 ubiquitin ligase COP1 / double-strand break repair via homologous recombination / G2/M DNA damage checkpoint / cellular response to gamma radiation / brain development / multicellular organism growth / DNA Damage/Telomere Stress Induced Senescence / Regulation of TP53 Activity through Methylation / Meiotic recombination / HDR through Homologous Recombination (HRR) / double-strand break repair via nonhomologous end joining / spindle / intrinsic apoptotic signaling pathway in response to DNA damage / cellular senescence / positive regulation of neuron apoptotic process / Regulation of TP53 Degradation / double-strand break repair / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / peptidyl-serine phosphorylation / site of double-strand break / chromosome / heart development / Processing of DNA double-strand break ends / protein autophosphorylation / neuron apoptotic process / regulation of apoptotic process / Regulation of TP53 Activity through Phosphorylation / eukaryotic translation initiation factor 2alpha kinase activity / 3-phosphoinositide-dependent protein kinase activity / DNA-dependent protein kinase activity / ribosomal protein S6 kinase activity / histone H3S10 kinase activity Similarity search - Function | ||||||||||||
Biological species | ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.6 Å | ||||||||||||
![]() | Howes, A.C. / Perisic, O. / Williams, R.L. | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: 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. | ||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.3 MB | Display | ![]() |
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PDB format | ![]() | 881.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | 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 ![]() |
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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.) ![]() ![]() 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: ![]() |
Source (recombinant) | Organism: ![]() |
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: ![]() |
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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EM software |
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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 | ||||||||||||||||||||||||||||
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