X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 6.5
Temperature 298.0
Details 20% PEG 8K, 0.2M calcium acetate, 0.1M sodium cacodylate, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 66.07 α = 90
b = 66.07 β = 90
c = 87.62 γ = 120
Symmetry
Space Group P 32

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2001-04-02
Diffraction Radiation
Monochromator Protocol
Liquid gallium cooled, bent, triangulary Si 111 SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX14.1 1.448 SRS PX14.1

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
2.2 56.8 99.9 0.05 0.044 -- 4.0 -- 21690 8.73 11.0 46.47
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.2 2.32 99.9 0.423 0.364 1.8 3.9 3149

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 2.2 56.8 1.8 0.0 -- 20551 1110 99.84 -- 0.21102 0.2071 0.28339 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.2 2.257 1511 84 1511 0.263 0.341 -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 24.349
Anisotropic B[1][1] 0.74
Anisotropic B[1][2] 0.37
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.74
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -1.12
RMS Deviations
Key Refinement Restraint Deviation
r_rigid_bond_restr 1.027
r_symmetry_hbond_refined 0.191
r_sphericity_free 3.472
r_xyhbond_nbd_refined 0.192
r_mcangle_it 1.062
r_sphericity_bonded 1.401
r_bond_refined_d 0.017
r_gen_planes_refined 0.007
r_nbtor_other 0.087
r_bond_other_d 0.002
r_gen_planes_other 0.002
r_mcbond_it 0.69
r_scbond_it 1.656
r_angle_refined_deg 1.682
r_angle_other_deg 0.905
r_chiral_restr 0.103
r_nbd_refined 0.219
r_scangle_it 2.331
r_symmetry_vdw_other 0.284
r_dihedral_angle_1_deg 9.212
r_nbd_other 0.254
r_symmetry_vdw_refined 0.291
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.0
Luzzati ESD (R-Free Set) 0.254
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3100
Nucleic Acid Atoms 0
Heterogen Atoms 20
Solvent Atoms 155

Software

Software
Software Name Purpose
REFMAC refinement version: 5.1.24
MOSFLM data reduction
CCP4 data scaling version: (SCALA)
MOLREP phasing