X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1810 MM TRIS-HCL PH 8.0, 1 MM EDTA, 25% (W/V) POLY-ETHYLENE GLYCOL 3350, 500 MM SODIUM NITRATE, 2 MM SIALIC ACID
Crystal Properties
Matthews coefficientSolvent content
237.6

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 167.691α = 90
b = 77.325β = 101.45
c = 94.111γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC CCDMIRRORS2008-07-20MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID14-2ESRFID14-2

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
11.94096.10.08104.18902721.6
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)
11.9290.10.353.73.8

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 1A3K1.93586627212495.580.207720.206420.25915THIN SHELLS31.322
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]
0.16-1.08-0.620.03
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.385
r_dihedral_angle_4_deg18.305
r_dihedral_angle_3_deg12.171
r_dihedral_angle_1_deg7.109
r_scangle_it5.961
r_mcangle_it4.329
r_scbond_it4.222
r_mcbond_it3.161
r_angle_refined_deg1.317
r_mcbond_other1.243
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg35.385
r_dihedral_angle_4_deg18.305
r_dihedral_angle_3_deg12.171
r_dihedral_angle_1_deg7.109
r_scangle_it5.961
r_mcangle_it4.329
r_scbond_it4.222
r_mcbond_it3.161
r_angle_refined_deg1.317
r_mcbond_other1.243
r_angle_other_deg0.822
r_nbd_refined0.191
r_nbd_other0.187
r_nbtor_refined0.17
r_symmetry_vdw_other0.159
r_xyhbond_nbd_refined0.148
r_symmetry_vdw_refined0.134
r_symmetry_hbond_refined0.133
r_nbtor_other0.082
r_chiral_restr0.078
r_bond_refined_d0.01
r_gen_planes_refined0.006
r_bond_other_d0.001
r_gen_planes_other0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
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 Atoms9501
Nucleic Acid Atoms
Solvent Atoms625
Heterogen Atoms84

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing