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- PDB-8pkx: Kelch domain of KEAP1 in complex with a ortho-dimethylbenzene lin... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8pkx | ||||||
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Title | Kelch domain of KEAP1 in complex with a ortho-dimethylbenzene linked cyclic peptide 11 (ortho-WRCNPETaEC). | ||||||
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![]() | PROTEIN BINDING / Peptide inhibitor / Inhibitor complex / cyclic peptide / Ubiquitin ligase / NRF2 | ||||||
Function / homology | ![]() regulation of epidermal cell differentiation / Nuclear events mediated by NFE2L2 / negative regulation of response to oxidative stress / Cul3-RING ubiquitin ligase complex / transcription regulator inhibitor activity / centriolar satellite / ubiquitin-like ligase-substrate adaptor activity / inclusion body / cellular response to interleukin-4 / regulation of autophagy ...regulation of epidermal cell differentiation / Nuclear events mediated by NFE2L2 / negative regulation of response to oxidative stress / Cul3-RING ubiquitin ligase complex / transcription regulator inhibitor activity / centriolar satellite / ubiquitin-like ligase-substrate adaptor activity / inclusion body / cellular response to interleukin-4 / regulation of autophagy / actin filament / disordered domain specific binding / KEAP1-NFE2L2 pathway / Antigen processing: Ubiquitination & Proteasome degradation / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / Neddylation / midbody / ubiquitin-dependent protein catabolic process / cellular response to oxidative stress / RNA polymerase II-specific DNA-binding transcription factor binding / in utero embryonic development / proteasome-mediated ubiquitin-dependent protein catabolic process / Potential therapeutics for SARS / Ub-specific processing proteases / protein ubiquitination / negative regulation of transcription by RNA polymerase II / endoplasmic reticulum / nucleoplasm / identical protein binding / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Braun, M.B. / Bischof, L. / Hartmann, M.D. | ||||||
Funding support | 1items
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![]() | ![]() Title: Computational Prediction of Cyclic Peptide Structural Ensembles and Application to the Design of Keap1 Binders. Authors: Fonseca Lopez, F. / Miao, J. / Damjanovic, J. / Bischof, L. / Braun, M.B. / Ling, Y. / Hartmann, M.D. / Lin, Y.S. / Kritzer, J.A. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 263.2 KB | Display | ![]() |
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PDB format | ![]() | 200.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 727.5 KB | Display | ![]() |
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Full document | ![]() | 736 KB | Display | |
Data in XML | ![]() | 26.6 KB | Display | |
Data in CIF | ![]() | 37.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8pkuC ![]() 8pkvC ![]() 8pkwC 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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1 | ![]()
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2 | ![]()
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Unit cell |
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Components
-Protein / Protein/peptide , 2 types, 3 molecules ABP
#1: Protein | Mass: 34624.793 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Protein/peptide | | Mass: 1233.377 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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-Non-polymers , 7 types, 307 molecules 












#3: Chemical | #4: Chemical | ChemComp-EDO / #5: Chemical | ChemComp-GOL / #6: Chemical | ChemComp-NA / #7: Chemical | ChemComp-SO4 / | #8: Chemical | ChemComp-ZK2 / ( | #9: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.77 Å3/Da / Density % sol: 60 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop Details: 100 mM Bis-Tris pH 6.5, 1.5 M NH4SO4, 0.2 % PEG 550 |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Mar 30, 2023 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.99999 Å / Relative weight: 1 |
Reflection | Resolution: 1.79→42.24 Å / Num. obs: 72288 / % possible obs: 99.6 % / Redundancy: 6.93 % / Biso Wilson estimate: 35.11 Å2 / CC1/2: 0.999 / Net I/σ(I): 16.53 |
Reflection shell | Resolution: 1.79→1.9 Å / Mean I/σ(I) obs: 1.27 / Num. unique obs: 11545 / CC1/2: 0.58 |
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Processing
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Refinement | Method to determine structure: ![]() Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 52.66 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 1.79→42.24 Å
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Refine LS restraints |
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LS refinement shell |
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