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- PDB-4r8n: Crystal structure of Staphylococcal nuclease variant V23I/V66I/I7... -
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Open data
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Basic information
Entry | Database: PDB / ID: 4r8n | ||||||
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Title | Crystal structure of Staphylococcal nuclease variant V23I/V66I/I72V/I92V at cryogenic temperature | ||||||
![]() | Thermonuclease | ||||||
![]() | HYDROLASE / Staphylococcal nuclease / pdtp / cavity / pressure | ||||||
Function / homology | ![]() endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 3'-phosphomonoesters / micrococcal nuclease / nucleic acid binding / extracellular region / membrane / metal ion binding Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() ![]() | ||||||
![]() | Caro, J.A. / Flores, E. / Schlessman, J.L. / Heroux, A. / Garcia-Moreno, E.B. | ||||||
![]() | ![]() Title: Cavities in proteins Authors: Caro, J.A. / Schlessman, J.L. / Garcia-Moreno, E.B. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 74.2 KB | Display | ![]() |
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PDB format | ![]() | 53.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 832.5 KB | Display | ![]() |
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Full document | ![]() | 833.7 KB | Display | |
Data in XML | ![]() | 8.7 KB | Display | |
Data in CIF | ![]() | 11.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 4k5vC ![]() 4kjnC ![]() 4kjoC ![]() 4me5C ![]() 4miuC ![]() 4n9pC ![]() 4n9tC ![]() 4nmzC ![]() 4rkbC ![]() 4rklC ![]() 1sncS S: Starting model for refinement C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Components
-Protein , 1 types, 1 molecules A
#1: Protein | Mass: 16026.601 Da / Num. of mol.: 1 / Fragment: UNP residues 83-223 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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-Non-polymers , 5 types, 77 molecules ![](data/chem/img/THP.gif)
![](data/chem/img/CA.gif)
![](data/chem/img/PO4.gif)
![](data/chem/img/MRD.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/CA.gif)
![](data/chem/img/PO4.gif)
![](data/chem/img/MRD.gif)
![](data/chem/img/HOH.gif)
#2: Chemical | ChemComp-THP / |
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#3: Chemical | ChemComp-CA / |
#4: Chemical | ChemComp-PO4 / |
#5: Chemical | ChemComp-MRD / ( |
#6: Water | ChemComp-HOH / |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.22 Å3/Da / Density % sol: 44.69 % |
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Crystal grow | Temperature: 277 K / Method: vapor diffusion, hanging drop / pH: 9 Details: 20% MPD, 25 mM Potassium Phosphate, Calcium Chloride, pdTp, pH 9, VAPOR DIFFUSION, HANGING DROP, temperature 277K |
-Data collection
Diffraction | Mean temperature: 100 K | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Diffraction source | Source: ![]() ![]() ![]() | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Detector | Type: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Apr 11, 2013 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation | Monochromator: Monochromator: Double silicon(111) crystal monochromator with cryogenically-cooled first crystal and sagittally-bent second crystal horizontally-focusing at 3.3:1 demagnification. ...Monochromator: Monochromator: Double silicon(111) crystal monochromator with cryogenically-cooled first crystal and sagittally-bent second crystal horizontally-focusing at 3.3:1 demagnification. Mirror: Meridionally-bent fused silica mirror with palladium and uncoated stripes vertically-focusing at 6.6:1 demagnification. Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 0.979 Å / Relative weight: 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection | Resolution: 1.65→50 Å / Num. all: 16933 / Num. obs: 16933 / % possible obs: 100 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 13 % / Biso Wilson estimate: 36.6 Å2 / Rmerge(I) obs: 0.041 / Χ2: 1.557 / Net I/σ(I): 20.8 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection shell | Diffraction-ID: 1
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-Phasing
Phasing | Method: ![]() | |||||||||
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Phasing MR | Model details: Phaser MODE: MR_AUTO
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 1SNC Resolution: 1.65→47.6 Å / Cor.coef. Fo:Fc: 0.964 / Cor.coef. Fo:Fc free: 0.945 / WRfactor Rfree: 0.2653 / WRfactor Rwork: 0.2139 / FOM work R set: 0.8195 / SU B: 4.917 / SU ML: 0.087 / SU R Cruickshank DPI: 0.1059 / SU Rfree: 0.1092 / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / ESU R: 0.106 / ESU R Free: 0.109 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT U VALUES : WITH TLS ADDED
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 85.28 Å2 / Biso mean: 36.702 Å2 / Biso min: 16.58 Å2
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Refinement step | Cycle: LAST / Resolution: 1.65→47.6 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 1.651→1.693 Å / Total num. of bins used: 20
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Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group |
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