1J7E

A Structural Basis for the Unique Binding Features of the Human Vitamin D-binding Protein


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP4.6293PEG 400, sodium acetate, pH 4.6, VAPOR DIFFUSION, SITTING DROP, temperature 20K
Crystal Properties
Matthews coefficientSolvent content
3.1260.52

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 131.977α = 90
b = 131.977β = 90
c = 73.42γ = 90
Symmetry
Space GroupP 43

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMARRESEARCHtoroidal mirror2000-02-20MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONELETTRA BEAMLINE 5.2R0.912ELETTRA5.2R

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.373098.50.0770.07715.93.251580-354.9
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.372.4199.10.5390.5392.13.22503

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1J782.5529.513955939559192595.50.2130.263RANDOM63.1
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
-1.55-1.553.1
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d18.7
c_scangle_it8.73
c_scbond_it7.1
c_mcangle_it5.6
c_mcbond_it3.95
c_angle_deg1.2
c_improper_angle_d0.95
c_bond_d0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6804
Nucleic Acid Atoms
Solvent Atoms246
Heterogen Atoms120

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing