4OMX

Crystal structure of goat beta-lactoglobulin (trigonal form)


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1BEBPDB ENTRY 1BEB

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8.52932.3 M (NH4)2SO4 in 0.5 M Tris-HCl pH 8.5 , VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
5.1175.92

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 97.49α = 90
b = 97.49β = 90
c = 67.82γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDAGILENT ATLAS CCD2013-03-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SEALED TUBEOXFORD DIFFRACTION ENHANCE ULTRA1.54

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
12.314.2899.40.089.7169731687122
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.32.421000.39222445

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1BEB2.314.281590185299.310.195730.193420.23987RANDOM36.081
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]
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.178
r_dihedral_angle_3_deg15.8
r_dihedral_angle_4_deg12.458
r_long_range_B_refined7.805
r_long_range_B_other7.802
r_dihedral_angle_1_deg6.025
r_scangle_other5.064
r_mcangle_it3.53
r_mcangle_other3.527
r_scbond_it3.024
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.178
r_dihedral_angle_3_deg15.8
r_dihedral_angle_4_deg12.458
r_long_range_B_refined7.805
r_long_range_B_other7.802
r_dihedral_angle_1_deg6.025
r_scangle_other5.064
r_mcangle_it3.53
r_mcangle_other3.527
r_scbond_it3.024
r_scbond_other3.022
r_mcbond_it2.199
r_mcbond_other2.199
r_angle_refined_deg1.408
r_angle_other_deg0.736
r_chiral_restr0.084
r_bond_refined_d0.01
r_gen_planes_refined0.005
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1274
Nucleic Acid Atoms
Solvent Atoms161
Heterogen Atoms28

Software

Software
Software NamePurpose
CrysalisProdata collection
PHASERphasing
REFMACrefinement
CrysalisProdata reduction
SCALAdata scaling