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Open data
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Basic information
Entry | Database: PDB / ID: 4qn3 | |||||||||
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Title | Crystal structure of Neuraminidase N7 | |||||||||
![]() | Neuraminidase | |||||||||
![]() | HYDROLASE / 6-BLADED BETA-PROPELLER / CALCIUM BINDING / GLYCOSYLATION | |||||||||
Function / homology | ![]() exo-alpha-sialidase / exo-alpha-sialidase activity / viral budding from plasma membrane / carbohydrate metabolic process / host cell plasma membrane / virion membrane / membrane / metal ion binding Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ![]() ![]() ![]() | |||||||||
![]() | Sun, X. / Li, Q. / Wu, Y. / Liu, Y. / Qi, J. / Vavricka, C.J. / Gao, G.F. | |||||||||
![]() | ![]() Title: Structure of influenza virus N7: the last piece of the neuraminidase "jigsaw" puzzle. Authors: Sun, X. / Li, Q. / Wu, Y. / Wang, M. / Liu, Y. / Qi, J. / Vavricka, C.J. / Gao, G.F. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 325.3 KB | Display | ![]() |
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PDB format | ![]() | 265.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.5 MB | Display | ![]() |
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Full document | ![]() | 1.5 MB | Display | |
Data in XML | ![]() | 34.8 KB | Display | |
Data in CIF | ![]() | 50.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
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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 on special symmetry positions |
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Components
-Protein , 1 types, 2 molecules AB
#1: Protein | Mass: 42955.070 Da / Num. of mol.: 2 / Fragment: UNP residues 81-470 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: NA / Production host: ![]() ![]() |
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-Sugars , 3 types, 6 molecules 
#2: Polysaccharide | Source method: isolated from a genetically manipulated source #3: Polysaccharide | Source method: isolated from a genetically manipulated source #5: Sugar | |
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-Non-polymers , 2 types, 522 molecules 


#4: Chemical | #6: Water | ChemComp-HOH / | |
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-Details
Has protein modification | Y |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.16 Å3/Da / Density % sol: 43 % |
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Crystal grow | Temperature: 291 K / Method: evaporation / pH: 4.5 Details: 0.1M calcium acetate, 0.1M sodium acetate, 10%(w/v) polyethylene glycol 4000, pH 4.5, EVAPORATION, temperature 291K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC QUANTUM 315r / Detector: CCD / Date: Dec 12, 2013 |
Radiation | Monochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 |
Reflection | Resolution: 2.092→50 Å / Num. all: 44404 / Num. obs: 44404 / % possible obs: 98.55 % / Observed criterion σ(F): 1.5 / Observed criterion σ(I): 2 |
Reflection shell | Resolution: 2.1→2.18 Å / % possible all: 91.1 |
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Processing
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Refinement | Method to determine structure: ![]()
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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: 78.2 Å2 / Biso mean: 26.77 Å2 / Biso min: 10.18 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.092→33.587 Å
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Refine LS restraints |
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LS refinement shell | Refine-ID: X-RAY DIFFRACTION / Total num. of bins used: 16
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Refinement TLS params. | Method: refined / Origin x: -14.0777 Å / Origin y: -15.8532 Å / Origin z: 31.1462 Å
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Refinement TLS group | Selection details: ALL |