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- PDB-7tpz: Selenium-free nitrogenase Fe protein (Av2) from A. vinelandii (nu... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7tpz | ||||||
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Title | Selenium-free nitrogenase Fe protein (Av2) from A. vinelandii (nucleotide control) | ||||||
![]() | Nitrogenase iron protein 1 | ||||||
![]() | OXIDOREDUCTASE / nitrogenase / metalloprotein / iron sulfur cluster | ||||||
Function / homology | ![]() nitrogenase / : / nitrogenase activity / nitrogen fixation / 4 iron, 4 sulfur cluster binding / ATP binding / metal ion binding Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() ![]() ![]() | ||||||
![]() | Buscagan, T.M. / Kaiser, J.T. / Rees, D.C. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Selenocyanate derived Se-incorporation into the Nitrogenase Fe protein cluster. Authors: Buscagan, T.M. / Kaiser, J.T. / Rees, D.C. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 73 KB | Display | ![]() |
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PDB format | ![]() | 50.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 798.2 KB | Display | ![]() |
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Full document | ![]() | 798.6 KB | Display | |
Data in XML | ![]() | 13.4 KB | Display | |
Data in CIF | ![]() | 18.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7t4hC ![]() 7tneC ![]() 7tpnC ![]() 7tpoC ![]() 7tpvC ![]() 7tpwC ![]() 7tpxC ![]() 7tpyC ![]() 7tq0C ![]() 7tq9C ![]() 7tqcC ![]() 7tqeC ![]() 7tqfC ![]() 7tqhC ![]() 7tqiC ![]() 7tqjC ![]() 7tqkC ![]() 6n4lS S: Starting model for refinement 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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Unit cell |
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Components on special symmetry positions |
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Components
#1: Protein | Mass: 31548.240 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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#2: Chemical | ChemComp-SF4 / |
#3: Chemical | ChemComp-MG / |
#4: Chemical | ChemComp-ADP / |
#5: Water | ChemComp-HOH / |
Has ligand of interest | Y |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 1.99 Å3/Da / Density % sol: 38.05 % |
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Crystal grow | Temperature: 298 K / Method: vapor diffusion, sitting drop / pH: 7.5 Details: 36-41% PEG400, 0.1-0.3 M sodium chloride, 0.1 M HEPES, pH 7.5, 2.5 mM dithionite, 0.17 mM Cymal-7 |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N | |||||||||
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Diffraction source | Source: ![]() ![]() ![]() | |||||||||
Detector | Type: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Dec 1, 2020 | |||||||||
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | |||||||||
Radiation wavelength |
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Reflection | Resolution: 1.71→45.49 Å / Num. obs: 27863 / % possible obs: 99.8 % / Redundancy: 13 % / Biso Wilson estimate: 20.82 Å2 / CC1/2: 1 / Rmerge(I) obs: 0.076 / Rpim(I) all: 0.031 / Rrim(I) all: 0.082 / Net I/σ(I): 19.7 | |||||||||
Reflection shell | Resolution: 1.71→1.74 Å / Redundancy: 11.5 % / Rmerge(I) obs: 1.273 / Num. unique obs: 1536 / CC1/2: 0.818 / Rpim(I) all: 0.526 / Rrim(I) all: 1.379 / % possible all: 98.5 |
-Phasing
Phasing | Method: ![]() | ||||||
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Phasing MR | R rigid body: 0.464
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB entry 6N4L Resolution: 1.71→37.33 Å / SU ML: 0.15 / Cross valid method: THROUGHOUT / σ(F): 1.34 / Phase error: 22.03 / Stereochemistry target values: ML
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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 max: 81.56 Å2 / Biso mean: 28.0726 Å2 / Biso min: 12.49 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: final / Resolution: 1.71→37.33 Å
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LS refinement shell | Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 19
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