X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.5
Temperature 285.0
Details 12% (W/V) PEG 350MME, 150 MM CACL2, 100 MM SODIUM CACODYLATE, PH 6.5, 12 DEGREES C, VAPOR DIFFUSION, HANGING DROP, temperature 285K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 209.74 α = 90
b = 209.74 β = 90
c = 114.25 γ = 120
Symmetry
Space Group H 3

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC SILICON 111 BENDING MIRROR 1998-10-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 -- CHESS A1

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
2.7 40 97.2 -- 0.08 -- 2.2 -- 51455 -- 2.0 50.0

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 2.7 40.0 -- 0.0 50031 50031 4877 97.2 -- 0.23 0.23 0.284 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 2.7 2.87 -- 874 7206 0.347 0.399 0.014 94.5
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 58.4
Anisotropic B[1][1] -4.89
Anisotropic B[1][2] 4.74
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -4.89
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 9.79
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.18
c_scangle_it 6.83
c_bond_d 0.008
c_dihedral_angle_d 24.5
c_angle_deg 1.4
c_mcbond_it 2.99
c_scbond_it 4.69
c_mcangle_it 4.65
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.37
Luzzati Sigma A (Observed) 0.54
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.48
Luzzati Sigma A (R-Free Set) 0.69
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 7381
Nucleic Acid Atoms 467
Heterogen Atoms 37
Solvent Atoms 221

Software

Software
Software Name Purpose
CNS refinement
DENZO data reduction
SCALEPACK data scaling
CNS phasing