X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 4.6
Temperature 295.0
Details protein solution (12.5 mg/ml) in 50mM Tris-HCl pH7.5, 0.1mM EDTA, 0.1mM DTT; crystallization condition - 20 % polyethylene glycol monomethylether 2000, 0.1 M Na Acetate, 0.2 M Ammonium acetate, 3 % ethylene glycol, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 40.37 α = 90
b = 40.37 β = 90
c = 165.82 γ = 90
Symmetry
Space Group P 41 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD MARRESEARCH -- 2000-01-27
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON APS BEAMLINE 17-ID 1.0 APS 17-ID

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 50 98.1 0.058 -- -- 10.9 9754 9754 0.0 0.0 21.0
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)
2.0 2.09 99.8 0.134 0.134 -- 8.7 1190

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
MIR 2.0 20.0 -- 2.0 9558 9326 1036 -- -- -- 0.195 0.263 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 2.0 2.07 -- -- -- 0.234 0.323 -- 94.6
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 30.0
RMS Deviations
Key Refinement Restraint Deviation
c_angle_deg 1.9
c_bond_d 0.018
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1260
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 124

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
SOLVE phasing
MLPHARE phasing
DM model building
CNS refinement
DM phasing