X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 8
Temperature 291.0
Details PEG 8000, Tris-HCl pH 8.0, dithiothreitol, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 100.28 α = 90
b = 50.75 β = 105.27
c = 68.62 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2000-05-11
Diffraction Radiation
Monochromator Protocol
Si 1 1 1 SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE A1 0.9080 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
2.01 100 95.7 0.098 -- -- 3.7 22266 21309 0.0 0.0 6.4
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)
2.01 2.15 95.3 0.25 -- 1.4 3.7 --

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 2.01 25.38 0.0 0.0 22360 20787 2045 93.0 0.228 -- 0.212 0.256 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 2.01 2.14 -- 324 2932 0.278 0.326 0.018 88.6
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 23.0
Anisotropic B[1][1] 3.98
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] -1.8
Anisotropic B[2][2] 2.52
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -6.5
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 1.09
c_angle_deg 1.3
c_mcbond_it 2.06
c_scbond_it 2.78
c_scangle_it 3.97
c_dihedral_angle_d 25.5
c_mcangle_it 3.17
c_bond_d 0.007
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.24
Luzzati Sigma A (Observed) 0.26
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.29
Luzzati Sigma A (R-Free Set) 0.3
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2533
Nucleic Acid Atoms 0
Heterogen Atoms 31
Solvent Atoms 160

Software

Software
Software Name Purpose
CNS refinement
MOSFLM data reduction
CCP4 data scaling version: (SCALA)
CNS phasing