X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.5293The purified protein was used in crystallisation trials employing both, a standard screen with approximately 1200 different conditions, as well as crystallisation conditions identified using literature data. Conditions initially obtained have been optimised using standard strategies, systematically varying parameters critically influencing crystallisation, such as temperature, protein concentration, drop ratio, and others. These conditions were also refined by systematically varying pH or precipitant concentrations. The final selected condition included PEG, at pH 6.5. Crystals were rhombic in shape and grew over a period of one week to the final size
Crystal Properties
Matthews coefficientSolvent content
3.1761.28

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 148.192α = 90
b = 148.226β = 118.65
c = 117.382γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELPSI PILATUS 6M2012-03-23MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSLS BEAMLINE X06SA1.00SLSX06SA

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
12.93103.0199.60.0524.347805
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)
12.933.1899.70.4414.4

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 REPLACEMENTTHROUGHOUT2.93103.014712161999.860.223490.222910.26806RANDOM94.025
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]
-0.08-0.030.05
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.656
r_dihedral_angle_4_deg16.014
r_dihedral_angle_3_deg13.166
r_dihedral_angle_1_deg6.08
r_scangle_it4.633
r_scbond_it3.031
r_mcangle_it2.007
r_angle_refined_deg1.143
r_mcbond_it1.081
r_angle_other_deg1.008
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.656
r_dihedral_angle_4_deg16.014
r_dihedral_angle_3_deg13.166
r_dihedral_angle_1_deg6.08
r_scangle_it4.633
r_scbond_it3.031
r_mcangle_it2.007
r_angle_refined_deg1.143
r_mcbond_it1.081
r_angle_other_deg1.008
r_mcbond_other0.17
r_chiral_restr0.068
r_bond_refined_d0.009
r_gen_planes_refined0.004
r_bond_other_d0.001
r_gen_planes_other0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms12648
Nucleic Acid Atoms
Solvent Atoms16
Heterogen Atoms152

Software

Software
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling