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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 | ![]() 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 / peptidyl-serine autophosphorylation / establishment of protein-containing complex localization to telomere / meiotic telomere clustering / positive regulation of telomere maintenance via telomere lengthening / pre-B cell allelic exclusion ...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 / peptidyl-serine autophosphorylation / establishment of protein-containing complex localization to telomere / 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 / regulation of telomere maintenance via telomerase / female meiotic nuclear division / DNA double-strand break processing / lipoprotein catabolic process / regulation of autophagosome assembly / cellular response to X-ray / V(D)J recombination / pexophagy / oocyte development / Impaired BRCA2 binding to PALB2 / 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) / response to ionizing radiation / positive regulation of double-strand break repair / Impaired BRCA2 binding to RAD51 / mitotic spindle assembly checkpoint signaling / negative regulation of B cell proliferation / TP53 Regulates Transcription of Caspase Activators and Caspases / cellular response to stress / 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 / Pexophagy / 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 / DNA damage checkpoint signaling / Stabilization of p53 / thymus development / regulation of signal transduction by p53 class mediator / Autodegradation of the E3 ubiquitin ligase COP1 / DNA-dependent protein kinase activity / histone H2AXS139 kinase activity / post-embryonic development / double-strand break repair via homologous recombination / determination of adult lifespan / cellular response to reactive oxygen species / TP53 Regulates Transcription of DNA Repair Genes / Nonhomologous End-Joining (NHEJ) / DNA damage response, signal transduction by p53 class mediator / Regulation of TP53 Activity through Methylation / HDR through Homologous Recombination (HRR) / cellular response to gamma radiation / G2/M DNA damage checkpoint / brain development / DNA Damage/Telomere Stress Induced Senescence / Meiotic recombination / double-strand break repair via nonhomologous end joining / spindle / multicellular organism growth / Regulation of TP53 Degradation / intrinsic apoptotic signaling pathway in response to DNA damage / cellular senescence / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / site of double-strand break / double-strand break repair / positive regulation of neuron apoptotic process / Processing of DNA double-strand break ends / chromosome / heart development / protein autophosphorylation / Regulation of TP53 Activity through Phosphorylation / regulation of apoptotic process / neuron apoptotic process / non-specific serine/threonine protein kinase / regulation of cell cycle / regulation of autophagy / protein phosphorylation / positive regulation of cell migration 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
Summary document | ![]() | 1.5 MB | Display | ![]() |
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Full document | ![]() | 1.5 MB | Display | |
Data in XML | ![]() | 144.5 KB | Display | |
Data in CIF | ![]() | 218.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-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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