6COA

1.2 A Structure of Thaumatin Crystallized in Gel


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1MICRODIALYSIS6.5293Na-tartrate (0.52M), Na-ADA (0.1M), agarose gel (0.15% m/v). THE CRYSTALS WERE GROWN IN THE ADVANCED PROTEIN CRYSTALLIZATION FACILITY (APCF) ABOARD THE US SPACE SHUTTLE (MISSION STS-95) USING EITHER A DIALYSIS SETUP (3 CRYSTALS) OR A FREE-INTERFACE DIFFUSION SETUP (1 CRYSTAL)., pH 6.5, Dialysis in APCF reactor, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
2.9257.82

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 58.53α = 90
b = 58.53β = 90
c = 151.35γ = 90
Symmetry
Space GroupP 41 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293IMAGE PLATEMARRESEARCH1998-12-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONEMBL/DESY, HAMBURG BEAMLINE BW7B0.8337EMBL/DESY, HAMBURGBW7B

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
11.220990.0360.03626.57.28224014.3
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)
11.21.2397.80.5220.5222.054.6

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 1THW1.219.9678110413098.960.10370.1030.1171RANDOM22.388
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]
0.310.31-0.62
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg40.598
r_sphericity_free18.322
r_sphericity_bonded18.056
r_dihedral_angle_4_deg14.16
r_dihedral_angle_3_deg11.016
r_dihedral_angle_1_deg6.59
r_rigid_bond_restr5.525
r_angle_refined_deg1.5
r_angle_other_deg0.951
r_chiral_restr0.099
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg40.598
r_sphericity_free18.322
r_sphericity_bonded18.056
r_dihedral_angle_4_deg14.16
r_dihedral_angle_3_deg11.016
r_dihedral_angle_1_deg6.59
r_rigid_bond_restr5.525
r_angle_refined_deg1.5
r_angle_other_deg0.951
r_chiral_restr0.099
r_bond_refined_d0.011
r_gen_planes_refined0.008
r_bond_other_d0.002
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1539
Nucleic Acid Atoms
Solvent Atoms235
Heterogen Atoms10

Software

Software
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing