X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
18.5INITIAL, TWINNED CRYSTALS WERE GROWN BY MIXING EQUAL VOLUMES OF PROTEIN SOLUTION (8 MG ML IN WATER) AND RESERVOIR (25 % PEG 3350, 0.2 M LI2SO4, 0.1 M TRIS-HCL, PH 8.5). THESE CRYSTALS WERE USED TO SEED PREEQUILIBRATED DROPS CONTAINING 4 MG ML PROTEIN, 20 % PEG 3350, 0.05 M LI2SO4, 0.09 M TRIS-HCL, PH 8.5.
Crystal Properties
Matthews coefficientSolvent content
238

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 97.472α = 90
b = 31.422β = 118.85
c = 95.471γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC CCDMSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSRS BEAMLINE PX14.1SRSPX14.1

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
12.025074.20.1411.32.0817076226.471
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)
12.022.0949.10.522.80.9

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)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 2BWK2.0250212698103574.40.2290.2290.294RANDOM39
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]
-2.457-8.50419.055-16.598
RMS Deviations
KeyRefinement Restraint Deviation
c_angle_deg1.42
c_bond_d0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d
RMS Deviations
KeyRefinement Restraint Deviation
c_angle_deg1.42
c_bond_d0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1925
Nucleic Acid Atoms
Solvent Atoms76
Heterogen Atoms

Software

Software
Software NamePurpose
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling
AMoREphasing