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- PDB-5ktt: Crystal structure of Pyrococcus horikoshii quinolinate synthase (... -
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Open data
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Basic information
Entry | Database: PDB / ID: 5ktt | ||||||||||||
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Title | Crystal structure of Pyrococcus horikoshii quinolinate synthase (NadA) with bound L-malate and Fe4S4 cluster | ||||||||||||
![]() | Quinolinate synthase A | ||||||||||||
![]() | TRANSFERASE / Dehydratase / iron-sulfur cluster / substrate analog complex / biosynthetic enzyme | ||||||||||||
Function / homology | ![]() quinolinate synthase / quinolinate synthetase A activity / 'de novo' NAD biosynthetic process from aspartate / 4 iron, 4 sulfur cluster binding / metal ion binding / cytosol Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() | ||||||||||||
Method | ![]() ![]() ![]() | ||||||||||||
![]() | Fenwick, M.K. / Ealick, S.E. | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Crystal Structures of the Iron-Sulfur Cluster-Dependent Quinolinate Synthase in Complex with Dihydroxyacetone Phosphate, Iminoaspartate Analogues, and Quinolinate. Authors: Fenwick, M.K. / Ealick, S.E. | ||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 144.3 KB | Display | ![]() |
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PDB format | ![]() | 109.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 452.9 KB | Display | ![]() |
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Full document | ![]() | 454.1 KB | Display | |
Data in XML | ![]() | 16.8 KB | Display | |
Data in CIF | ![]() | 26 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 5ktmC ![]() 5ktnSC ![]() 5ktoC ![]() 5ktpC ![]() 5ktrC ![]() 5ktsC C: citing same article ( S: Starting model for refinement |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Unit cell |
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Components
#1: Protein | Mass: 34582.434 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 700860 / DSM 12428 / JCM 9974 / NBRC 100139 / OT-3 Gene: nadA, PH0013 / Plasmid: pDESTF1 Details (production host): Gateway-adapted vector based on the pET system (Novagen) Production host: ![]() ![]() |
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#2: Chemical | ChemComp-SF4 / |
#3: Chemical | ChemComp-LMR / ( |
#4: Water | ChemComp-HOH / |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.08 Å3/Da / Density % sol: 40.85 % / Description: rod |
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Crystal grow | Temperature: 296 K / Method: vapor diffusion, hanging drop Details: 210 mM ammonium chloride, 8 - 15% polyethylene glycol 4000, and 40 mM HEPES, pH 5.5 - 7.5. L-malic acid, pH 5.6, was added to the protein solution to a final concentration of 10 mM PH range: 5.5 - 7.5 |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC QUANTUM 315 / Detector: CCD / Date: Apr 5, 2013 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.97925 Å / Relative weight: 1 |
Reflection | Resolution: 1.5→35 Å / Num. obs: 44361 / % possible obs: 97.3 % / Redundancy: 2.9 % / Rmerge(I) obs: 0.046 / Net I/av σ(I): 26 / Net I/σ(I): 15.9 |
Reflection shell | Resolution: 1.5→1.55 Å / Redundancy: 2.8 % / Rmerge(I) obs: 0.484 / Mean I/σ(I) obs: 2.7 / % possible all: 99.9 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 5KTN Resolution: 1.5→29.943 Å / SU ML: 0.16 / Cross valid method: FREE R-VALUE / σ(F): 1.35 / Phase error: 17.87
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 1.5→29.943 Å
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Refine LS restraints |
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LS refinement shell |
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