X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.6
Temperature 294.0
Details PEG 8000, glycerol, bis-tris, magnesium chloride, dithiothreitol, pH 6.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 101.2 α = 90
b = 117.53 β = 90
c = 120.39 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC QUANTUM 4 -- 2002-04-11
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F2 1.2822 CHESS F2

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
2.3 30 99.4 -- 0.057 -- 8.4 -- 63931 -- -- 29.0
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 2.38 98.4 -- 0.367 4.5 3.7 6222

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
FOURIER SYNTHESIS 2.3 30.0 -- 0.0 64368 61157 2465 94.9 -- 0.21 0.21 0.238 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 -- 406 8804 0.252 0.281 0.014 87.1
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 44.8
Anisotropic B[1][1] 7.8
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] -5.24
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -2.55
RMS Deviations
Key Refinement Restraint Deviation
c_mcangle_it 2.05
c_scangle_it 2.7
c_improper_angle_d 0.89
c_mcbond_it 1.26
c_scbond_it 1.85
c_dihedral_angle_d 18.8
c_bond_d 0.007
c_angle_deg 1.2
Coordinate Error
Parameter Value
Luzzati ESD (R-Free Set) 0.32
Luzzati Sigma A (R-Free Set) 0.27
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8751
Nucleic Acid Atoms 0
Heterogen Atoms 44
Solvent Atoms 348

Software

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