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Open data
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Basic information
Entry | Database: PDB / ID: 9l4f | ||||||
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Title | ATR-ATRIP bound with ATPgammaS | ||||||
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![]() | CELL CYCLE / ATR-ATRIP ATPgammaS | ||||||
Function / homology | ![]() ATR-ATRIP complex / establishment of RNA localization to telomere / positive regulation of telomerase catalytic core complex assembly / MutSalpha complex binding / establishment of protein-containing complex localization to telomere / nuclear membrane disassembly / MutLalpha complex binding / response to arsenic-containing substance / regulation of double-strand break repair / mitotic G2/M transition checkpoint ...ATR-ATRIP complex / establishment of RNA localization to telomere / positive regulation of telomerase catalytic core complex assembly / MutSalpha complex binding / establishment of protein-containing complex localization to telomere / nuclear membrane disassembly / MutLalpha complex binding / response to arsenic-containing substance / regulation of double-strand break repair / mitotic G2/M transition checkpoint / positive regulation of DNA damage response, signal transduction by p53 class mediator / nucleobase-containing compound metabolic process / protein localization to chromosome, telomeric region / HDR through Single Strand Annealing (SSA) / K63-linked polyubiquitin modification-dependent protein binding / Impaired BRCA2 binding to RAD51 / negative regulation of DNA replication / replication fork processing / site of DNA damage / Presynaptic phase of homologous DNA pairing and strand exchange / replicative senescence / Regulation of HSF1-mediated heat shock response / interstrand cross-link repair / Activation of ATR in response to replication stress / response to mechanical stimulus / regulation of cellular response to heat / positive regulation of telomere maintenance via telomerase / Meiotic synapsis / telomere maintenance / DNA damage checkpoint signaling / TP53 Regulates Transcription of DNA Repair Genes / Fanconi Anemia Pathway / G2/M DNA damage checkpoint / cellular response to gamma radiation / PML body / cellular response to UV / nuclear envelope / double-strand break repair / peptidyl-serine phosphorylation / chromosome / Processing of DNA double-strand break ends / protein autophosphorylation / 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 / histone H2AXS139 kinase activity / histone H3S28 kinase activity / histone H4S1 kinase activity / histone H2BS14 kinase activity / histone H3T3 kinase activity / histone H2AS121 kinase activity / Rho-dependent protein serine/threonine kinase activity / histone H2BS36 kinase activity / histone H3S57 kinase activity / histone H2AT120 kinase activity / AMP-activated protein kinase activity / histone H2AS1 kinase activity / histone H3T6 kinase activity / histone H3T11 kinase activity / histone H3T45 kinase activity / DNA replication / non-specific serine/threonine protein kinase / protein kinase activity / response to xenobiotic stimulus / protein serine kinase activity / DNA repair / protein serine/threonine kinase activity / DNA damage response / Golgi apparatus / DNA binding / nucleoplasm / ATP binding / nucleus Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 6.22 Å | ||||||
![]() | Wang, G. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Molecular architecture and inhibition mechanism of human ATR-ATRIP. Authors: Guangxian Wang / Po Wang / Zexuan Zheng / Qingjun Zhang / Chenchen Xu / Xinyi Xu / Lingfei Jian / Zhanpeng Zhao / Gang Cai / Xuejuan Wang / ![]() Abstract: The ataxia telangiectasia-mutated and Rad3-related (ATR) kinase is a master regulator of DNA damage response and replication stress in humans. Targeting ATR is the focus of oncology drug pipelines ...The ataxia telangiectasia-mutated and Rad3-related (ATR) kinase is a master regulator of DNA damage response and replication stress in humans. Targeting ATR is the focus of oncology drug pipelines with a number of potent, selective ATR inhibitors currently in clinical development. Here, we determined the cryo-EM structures of the human ATR-ATRIP complex in the presence of VE-822 and RP-3500, two ATR inhibitors currently in Phase II clinical trials, achieving an overall resolution of approximately 3 Å. These structures yield a near-complete atomic model of the ATR-ATRIP complex, revealing subunit stoichiometry, intramolecular and intermolecular interactions, and critical regulatory sites including an insertion in the PIKK regulatory domain (PRD). Structural comparison provides insights into the modes of action and selectivity of ATR inhibitors. The divergent binding modes near the solvent side and in the rear pocket area of VE-822 and RP-3500, particularly their disparate binding orientations, lead to varying conformational changes in the active site. Surprisingly, one ATR-ATRIP complex binds four VE-822 molecules, with two in the ATR active site and two at the ATR-ATR dimer interface. The binding and selectivity of RP-3500 depend on two bound water molecules, which may be further enhanced by the substitution of these bound waters. Our study provides a structural framework for understanding ATR regulation and holds promise for assisting future efforts in rational drug design targeting ATR. | ||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 773 KB | Display | ![]() |
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PDB format | ![]() | 522.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 62812MC ![]() 9l40C ![]() 9l43C ![]() 9l45C ![]() 9l46C ![]() 9l4bC ![]() 9l4cC ![]() 9l4dC 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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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 301756.781 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: Q13535, non-specific serine/threonine protein kinase #2: Protein | Mass: 85940.664 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #3: Chemical | Has ligand of interest | Y | Has protein modification | N | |
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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: ATR-ATRIP / Type: CELL / Entity ID: #1-#2 / 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: TFS KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1500 nm |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 6.22 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 40429 / Symmetry type: POINT |