+Open data
-Basic information
Entry | Database: PDB / ID: 3npo | ||||||
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Title | Bovine beta lactoglobulin unliganded form | ||||||
Components | Beta-lactoglobulin | ||||||
Keywords | TRANSPORT PROTEIN / beta-lactoglobulin / lipocalin / bovine milk | ||||||
Function / homology | Function and homology information retinol binding / long-chain fatty acid binding / extracellular space / identical protein binding Similarity search - Function | ||||||
Biological species | Bos taurus (cattle) | ||||||
Method | X-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.2 Å | ||||||
Authors | Loch, J.I. / Lewinski, K. | ||||||
Citation | Journal: J.Mol.Recognit. / Year: 2011 Title: Two modes of fatty acid binding to bovine beta-lactoglobulin-crystallographic and spectroscopic studies Authors: Loch, J.I. / Polit, A. / Gorecki, A. / Bonarek, P. / Kurpiewska, K. / Dziedzicka-Wasylewska, M. / Lewinski, K. | ||||||
History |
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Remark 650 | HELIX DETERMINATION METHOD: AUTHOR DETERMINED |
-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 3npo.cif.gz | 47.2 KB | Display | PDBx/mmCIF format |
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PDB format | pdb3npo.ent.gz | 32.8 KB | Display | PDB format |
PDBx/mmJSON format | 3npo.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/np/3npo ftp://data.pdbj.org/pub/pdb/validation_reports/np/3npo | HTTPS FTP |
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-Related structure data
Related structure data | 3nq3C 3nq9C 1bsyS C: citing same article (ref.) S: Starting model for refinement |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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Unit cell |
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-Components
#1: Protein | Mass: 18301.174 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / Tissue: milk / References: UniProt: P02754 |
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#2: Water | ChemComp-HOH / |
-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 2.43 Å3/Da / Density % sol: 49.44 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 7.5 Details: 1.34M trisodium citrate, 0.1M Tris-HCl buffer, 96% ethanol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K |
-Data collection
Diffraction | Mean temperature: 110 K |
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Diffraction source | Source: SEALED TUBE / Type: OXFORD DIFFRACTION ENHANCE ULTRA / Wavelength: 1.54 Å |
Detector | Type: OXFORD TITAN CCD / Detector: CCD / Date: Dec 3, 2009 / Details: Atlas detector 135mm |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.54 Å / Relative weight: 1 |
Reflection | Resolution: 2.2→10 Å / Num. obs: 9125 / % possible obs: 96.1 % / Rmerge(I) obs: 0.05 / Net I/σ(I): 11.6 |
Reflection shell | Resolution: 2.2→2.32 Å / Rmerge(I) obs: 0.182 / Mean I/σ(I) obs: 3.3 / % possible all: 89.5 |
-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: PDB ENTRY 1BSY Resolution: 2.2→9.96 Å / Cor.coef. Fo:Fc: 0.929 / Cor.coef. Fo:Fc free: 0.9 / SU B: 6.824 / SU ML: 0.178 / Cross valid method: THROUGHOUT / ESU R Free: 0.235 / 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: 27.887 Å2
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Refinement step | Cycle: LAST / Resolution: 2.2→9.96 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.2→2.54 Å / Total num. of bins used: 20
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