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- PDB-4nu2: Crystal structure of an ice-binding protein (FfIBP) from the Anta... -
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Open data
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Basic information
Entry | Database: PDB / ID: 4nu2 | ||||||
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Title | Crystal structure of an ice-binding protein (FfIBP) from the Antarctic bacterium, Flavobacterium frigoris PS1 | ||||||
![]() | Antifreeze protein | ||||||
![]() | ANTIFREEZE PROTEIN / Beta-helical / antifreeze activity / ice crystal | ||||||
Function / homology | Ice-binding protein / Ice-binding-like / extracellular region / Ice-binding protein![]() | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Do, H. / Kim, S.J. / Lee, S.G. / Park, H. / Kim, H.J. / Lee, J.H. | ||||||
![]() | ![]() Title: Structure-based characterization and antifreeze properties of a hyperactive ice-binding protein from the Antarctic bacterium Flavobacterium frigoris PS1 Authors: Do, H. / Kim, S.J. / Kim, H.J. / Lee, J.H. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 53.4 KB | Display | ![]() |
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PDB format | ![]() | 37.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 4nu3C ![]() 4nuhC ![]() 3uyuS 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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Unit cell |
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Components
#1: Protein | Mass: 25461.578 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#2: Water | ChemComp-HOH / |
Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 4.2 Å3/Da / Density % sol: 70.71 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 4.4 Details: 0.1M sodium acetate, 3M sodium chloride, pH 4.4, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() |
Detector | Type: ADSC QUANTUM 315r / Detector: CCD / Date: Jul 6, 2012 |
Radiation | Monochromator: DCM Si (111) Crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.9795 Å / Relative weight: 1 |
Reflection | Resolution: 2.1→37.81 Å / Num. all: 25048 / Num. obs: 24497 / % possible obs: 97.8 % / Observed criterion σ(F): 1 / Observed criterion σ(I): 1 |
Reflection shell | Resolution: 2.1→2.14 Å / % possible all: 99.1 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 3UYU Resolution: 2.1→37.81 Å / Cor.coef. Fo:Fc: 0.954 / Cor.coef. Fo:Fc free: 0.939 / SU B: 3.741 / SU ML: 0.097 / Cross valid method: THROUGHOUT / σ(F): 1 / ESU R: 0.134 / ESU R Free: 0.132 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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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 mean: 41.85 Å2
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Refinement step | Cycle: LAST / Resolution: 2.1→37.81 Å
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Refine LS restraints |
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