X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP82830.2 M ammonium acetate, 0.1 M HEPES pH 7.5 and 25% w/v PEG 3,350. This solution was mixed 1:1 with 2.5mg/mL protein in 50mM Tris-HCl (pH 8.0), 50mM NaCl, and 1mM TCEP. Prior to data collection, crystals were transferred into a cryo-solution containing 20% PEG550 MME and flash-frozen in liquid nitrogen, VAPOR DIFFUSION, SITTING DROP, temperature 283K
Crystal Properties
Matthews coefficientSolvent content
2.1943.84

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 48.04α = 90
b = 79.737β = 90
c = 124.801γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-rayCCDMARMOSAIC 225 mm CCD2012-12-08MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 21-ID-F0.97872APS21-ID-F

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
12.0839.080.12519.646.618935728805

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 4GPQ2.0839.0827206145796.920.174870.172330.22177RANDOM34.969
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]
0.23-0.18-0.05
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.892
r_dihedral_angle_4_deg16.458
r_dihedral_angle_3_deg13.562
r_dihedral_angle_1_deg6.229
r_long_range_B_refined5.974
r_long_range_B_other5.938
r_scangle_other3.796
r_scbond_it2.613
r_scbond_other2.613
r_mcangle_it2.611
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg31.892
r_dihedral_angle_4_deg16.458
r_dihedral_angle_3_deg13.562
r_dihedral_angle_1_deg6.229
r_long_range_B_refined5.974
r_long_range_B_other5.938
r_scangle_other3.796
r_scbond_it2.613
r_scbond_other2.613
r_mcangle_it2.611
r_mcangle_other2.611
r_angle_refined_deg1.79
r_mcbond_it1.714
r_mcbond_other1.714
r_angle_other_deg1.072
r_chiral_restr0.11
r_bond_refined_d0.017
r_gen_planes_refined0.009
r_bond_other_d0.004
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_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3658
Nucleic Acid Atoms
Solvent Atoms168
Heterogen Atoms78

Software

Software
Software NamePurpose
HKL-2000data collection
MOLREPphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling