X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 295.0
Details sodium sulfate, sodium cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 81.2 α = 90
b = 81.2 β = 90
c = 90.84 γ = 90
Symmetry
Space Group P 43 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 1999-02-25
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS 0.9789, 0.9770, 0.9791 APS --

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 20 100.0 0.087 -- -- 18.4 15971 15968 -- 0.0 20.0
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)
2.3 2.4 100.0 0.28 -- 12.6 18.7 1560

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
-- 2.3 9.94 -- 3.0 13831 13776 1391 99.6 -- -- 0.214 0.246 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 2.3 2.44 -- 234 2022 0.25 0.266 0.017 99.8
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 34.3
Anisotropic B[1][1] 0.0
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 0.0
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 0.0
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.2
c_improper_angle_d 0.63
c_scbond_it 1.82
c_mcbond_it 3.44
c_mcangle_it 3.51
c_bond_d 0.006
c_dihedral_angle_d 23.3
c_scangle_it 2.84
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.31
Luzzati Sigma A (Observed) 0.22
Luzzati Resolution Cutoff (Low) 10.0
Luzzati ESD (R-Free Set) 0.34
Luzzati Sigma A (R-Free Set) 0.24
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1311
Nucleic Acid Atoms 0
Heterogen Atoms 29
Solvent Atoms 63

Software

Software
Software Name Purpose
MAR345 data collection
d*TREK data reduction
SOLVE phasing
CNS refinement version: 0.9
d*TREK data scaling